Bourns Data Center Power & Protection Solutions – Design for Maximum Uptime

Reliable circuit protection and power solutions optimized for modern datacenter infrastructure.

Bourns offers a comprehensive portfolio of circuit protection, power management, and magnetic solutions designed to meet the demanding requirements of modern datacenter applications. From server power supplies and storage systems to networking equipment and rack-level power distribution, these components are engineered to deliver high reliability, efficiency, and performance in critical environments.

Key solutions include surge protection devices, resettable fuses, TVS diodes, high-current inductors, and transformers that support power conversion, voltage regulation, and signal integrity. Designed for high-density and high-efficiency systems, Bourns products help safeguard sensitive electronics, reduce downtime, and improve overall system durability.

With readily available inventory through DigiKey and support for a wide range of datacenter applications—including AI servers, facility power management, and enterprise storage—Bourns enables engineers to design with confidence and maintain continuous operation.

Application Focuses

  • Hotswap
  • Rack Protection
  • Battery and Capacitor Backup Unit
  • Vertical/Lateral Power Delivery
  • Solid State Transformers
  • Memory
  • Networking
  • Battery Energy Storage Systems
Hot Swap Applications
Image Device Type Bourns Product Recommendations Specifications and Features Description
PTVS Diode PTVS3-430C-TH
  • Standoff Voltage: 15-470 V
  • Max. Peak Current: 1-20 kA, 8/20 µs
  • Offered in through-hole and SMD packages
  • Bidirectional
Power TVS diodes provide outstanding secondary protection for direct current (DC) bus applications. TVS diodes provide tighter clamping with superior speed over traditional MOV technology.
Current Sense Resistors CSS2H-2512R-1L00F
  • Resistance Range: 0.2-5 mΩ
  • Power Rating: 1.5-15 W
  • Tolerance: 1 %, 2 %, 5 %
  • Temperature Coefficient: 50 ppm
  • Surface mount
  • Low thermal EMF
Bare metal SMD shunts for precision monitoring of current.
Wirewound Resistors UB3C-100RF1
  • Resistance Range: 0.02-260 kΩ
  • Power Rating: 1 – 15 W
  • Tolerance: 0.01 % - 10 %
  • Low TCR: ±20PPM/°C
  • Through-hole package
  • Wirewound technology
Wirewound resistors are known for precision and robustness. These are used for high precision and to manage high power and pulse loads.
Inrush Current Limiting NTC BN-LG20Y2R5MYB
  • Imax: 0.3 – 15 A
  • Resistance Range: 1 – 120 Ω
  • Disc Diameter: 5 - 25 mm
  • Kinked and Straight Lead
  • UL recognized
POWrTherm™ NTC Thermistors are overcurrent protectors and act as Inrush Current Limiters (ICL) – commonly used in switching power supplies, motors, amplifiers, and transformer applications. Bourns® POWrTherm™ products are manufactured from various metal oxides to form polycrystalline NTC thermistor bodies capable of suppressing high inrush currents with equivalent capacitance up to 1500 μF@240 VAC and maximum current ratings up to 15 A.
NTC Thermistors BTN02G/BTN04G
  • Power Rating 36-50 W
  • R = 10-100KΩ (±1-5%)
  • Max Power rating – 170mW
  • SMD NTC thermistor for thermal sense
  • Highly stable electrical characteristics
  • Operating temperature: -40 °C to +125 °C
Bourns® NTC thermistors are compact, surface-mount components that provide precise temperature sensing and compensation. With stable electrical performance and tight tolerance options, they are ideal for managing thermal conditions in applications like mobile devices, LED lighting, and battery packs.
Thermal Jumper Chip
  • Thermal conductivity: 170 W/m・K
  • High Insulation resistance
  • Operating temp -55 ~ 155℃
  • Low capacitance
Thermal dissipation is a unique SMD that provides high thermal conductivity while also possessing insulating properties
Rack Protection
Image Device Type Bourns Product Recommendations Specifications and Features Description
Diode Array CDSOT23-T36C
  • Transient Voltage Suppressor Diode Arrays
  • Peak reverse voltagen- 3.6-36V
  • Breakdown voltage-4-40V
Bourns offers Transient Voltage Suppressor Array diodes for surge and ESD protection applications, in compact chip package SOT23 size format Bourns engineers optimized the design to protect a wide range of applications including Ethernet ports, portable electronics, wireless LANs and Universal Serial Bus (USB) interface-based systems.
ESD Suppressor CG0201MLA-5.5MH
  • Working voltage: 3.3-56 V
  • Low capacitance
  • Response time: <0.5 ns
  • Standards: IEC 61000-4-2 & 61000-4-3
  • ESD protection in small footprints
ESD protection in a small, SMD form factor.
PowerFuse™ PF-63R50H
  • 40-1500 VDC Rated Voltage
  • 0.5 – 50 kA Interrupt Rating
  • Meets UL 248, IEC-60269, and ISO8820
  • Available in Ferrule, Bolt Mounting, and PCB Mounting Types
Bourns® POWrFuse™ High-Power Fuses are industrial fuse links designed to withstand extreme ambient temperatures, high-cycling and low-level fault current conditions
PTVS Diode PTVS3-430C-TH
  • Standoff Voltage: 15-470 V
  • Max. Peak Current: 1-20 kA, 8/20 µs
  • Offered in through-hole and SMD packages
  • Bidirectional
Power TVS diodes provide outstanding secondary protection for direct current (DC) bus applications. TVS diodes provide tighter clamping with superior speed over traditional MOV technology.
SPD 1250A
  • Up to 200kA Surge Protection
  • 12-1500 VDC rated
  • Common mode and Differential mode protection
  • AC & DC Surge Protection Devices
  • Meets UL1449, IEC/EN 61643-11
  • Available in single pole and multipole configuration
Bourns® Surge Protective Devices (SPDs) are designed to protect sensitive equipment from damage caused by lightning and electrical transient surges. SPDs are protective devices that integrate discrete circuit protection devices into an assembly or system that provides an enhanced level of functionality and protection.
Power Thick Film Resistors PWR163
PWR263
PF2270
  • Resistance Range: 0.02-130 kΩ
  • Power Rating up to 300 W
  • Tolerance: 0.01 % - 10 %
  • Low Inductance
  • Variety of packages and footprints available
  • Resistor electrically isolated from backplate
  • Suitable for most types of soldering processes
Bourns offers a broad range of PWR-series high power thick film resistors with standard packages, surface mounted TO-163 and TO-263 (DPAK and D2PAK) and radial leaded through hole TO-220 and TO-247.
Battery and Capacitor Backup Unit
Image Device Type Bourns Product Recommendations Specifications and Features Description
PTVS Diode PTVS1-240C-M
  • Standoff Voltage: 15-470 V
  • Max. Peak Current: 1-20 kA, 8/20 µs
  • Offered in through-hole and SMD packages
  • Bidirectional
Power TVS diodes provide outstanding secondary protection for direct current (DC) bus applications. TVS diodes provide tighter clamping with superior speed over traditional MOV technology.
Metal Foil Current Sense CFN
  • Resistance Range: 1 mΩ–1 MΩ
  • Power Rating: 0.1-3 W
  • Tolerance: 0.5-5 %
  • Metal and film technologies
  • Low thermal EMF
Precision SMD current sense resistors ideally suited for pulse width modulation (PWM) circuits. SMD shunts provide tight tolerances with low temperature drift in a small footprint.
Custom Magnetics
  • Upto >50KW power
  • Insulation Class B 125 ˚C, Class F 155 ˚C and Class H 180 ˚CW
  • Switching frequency up to 1MHz
  • VDA 6.3, Factory IATF 16949 certified
  • High Frequency Power Topologies:
    Buck, Boost, SEPIC, CUK, Half and Full Bridge LLC,, Push-pull, Forward, Flyback
Bourns' custom Magnetics team can design and manufacture transformers and inductors for almost any power level, helping designers meet their application specific requirements. Customers are able to leverage Bourns' engineering expertise and advanced software design tools to expedite the development an optimized design. Plus, our engineering lab can provide fast turnaround prototype samples and manufacturing to support volume production goals.
SMPS Transformer PLN0xx-ER20
  • Switching Frequency upto 550KHz
  • Out put current up to 21A
  • Multiple input & output voltage option
  • Parts customized for different applications.
  • Basic & reinforced isolation option
Bourns has variety of isolation transformers to support all applications including gate drive, push pull, low power etc. Switching frequency can be from few KHz to 550KHz with vary compact size.
Flyback Transformer SM91047EL
  • 85 – 265 VAC Input
  • 5V – 0.4A out put
  • Hi-pot up to 3kV
  • Meets IEC 60950-1, Functional Grade of isolation
Bourns has both standard & customized flyback transformer portfolio which customer can opt based on the design requirement. SM91047 series comes with compact size of 17.8x13.5x12.7mm
Fixed Inductors Shielded Inductor
  • Available from 0.1 to 61A
  • High current, Low DCR
  • AEC-Q200 compliant parts available
  • SRM series combines flat wire technology & powdered iron core (compact & efficient)
Bourns® Shielded SMD Power Inductors have low footprints and a wide range of inductance. Bourns® best-selling shielded SMD power inductors are manufactured with a shielded housing designed to achieve the low EMI levels
Rectification Diode CD-DF4xxSL
  • Peak Reverse Voltage: 20-1600 V
  • Forward Current: 0.2-4 A
  • Peak Surge Current: 2-150 A
  • Single/Bridge configurations
  • Schottky and PN technologies
DC/DC converters incorporate diodes to rectify output power. Diodes are crucial to the operation of converters. Bourns offers both Schottky and PN variants to suit a wide range of applications.
TVS Diode SMF4C
  • Working Peak Reverse Voltage: 2-495 V
  • Power Rating: 400-15000 W
  • Industry standard SMD packages
  • Tight clamping action
For precision overvoltage protection of low voltage DC busses. Can protect against residual surge energy and electrostatic discharge (ESD). Quick clamping action with several power options and voltages available.
Varistor BVRA1812
  • Working Voltage: 14–385 VDC
  • Peak Surge Current: 30–1200 A
  • Standard SMD packages available
  • Plastic encapsulated PV varistors as direct cross to through-hole MOV
For overvoltage protection in low voltage range as well as for higher voltage protection (up to 385 V for PV series).
Polymer PTC Resettable Fuse MF-USHT
  • Maximum Voltage: 6-72 VDC
  • Hold Current: 0.05-13 A
  • Operating Temperature: -40 to 125 °C
  • SMD and through-hole packages
  • Fast Time-to-Trip (TTT)
Resettable overcurrent protection. Good for low voltage and low current DC busses and inputs. SMD packaging available.
Surface Mount Fuse SF-3812TL-TS
  • •Rated Voltage: 24-250 VDC; AC rated available •Rated Current: 62 mA to 50 A
  • Film and metal technologies
  • Various fusing characteristics
These will act as overcurrent protection devices for critical components. Faster than PTCs, but not resettable. SMD packaging and various technologies available.
Mini-Breaker SE
  • Rated voltage: ~60VDC
  • Current: ~75A @145°C
  • SMD small packager: 10 x7.0 x 7.5
  • One-shot action
Small SMD over temperature protection. Bimetal base thermal switch, adjustable trip temperature 55 ~ 220℃
NTC Thermistors BTN02G/BTN04G
  • Power Rating 36-50 W
  • R = 10-100KΩ (±1-5%)
  • Max Power rating – 170mW
  • SMD NTC thermistor for thermal sense
  • Highly stable electrical characteristics
  • Operating temperature: -40 °C to +125 °C
Bourns® NTC thermistors are compact, surface-mount components that provide precise temperature sensing and compensation. With stable electrical performance and tight tolerance options, they are ideal for managing thermal conditions in applications like mobile devices, LED lighting, and battery packs.
Current Sensor SSA-2
  • Package Size-110 mm
  • Nominal Current (Amps)-100 to 1000
  • Bandwidth (kHz)-300
  • Operating Temperature--40 °C to +115 °C
  • Supply Voltage-3 V ~ 5.5 V
  • Nominal current: 100 A to 1000 A
  • Formerly a Riedon™ product
  • AC or DC circuits n 1500 VDC reinforced isolation
  • Suitable to a wide range of application.
  • Technology-Bidirectional
Precise measurement of current flow is a crucial factor in a wide variety of applications. The resistive shunt technology in Riedon™ Current Sensors by Bourns is complimented by hardware/software to provide a calibrated and temperature compensated output in digital or analog format that is lightweight, has a high bandwidth and good overcurrent performance. Industrial motors, EV charging stations, battery management.
TBU® High-Speed Protectors (HSPs)
  • Polarity- Unidirectional & Bidirectional
  • Lower trigger current up to -50mA
  • Max RMS voltage – 425Vrms
  • 0ns response time
  • Low let-through energy
  • Low series resistance, capacitance
  • Well-matched channel to channel resistance
  • Low insertion loss
  • Three trigger current levels.
Bourns TBU® High-Speed Protectors are Electronic Current Limiters (ECLs) that guard against lightning, power induction, power cross, Earth Potential Rise (EPR), and other energy surges.
IsoMOV™
  • Max. Voltage: 56-745 VDC
  • Max. Peak Current: 6-15 kA, 8/20 µs
  • Operating Temperature: -40 to +125 °C
  • Disc Size: 10-20 mm
  • Through-hole components
Combination of MOV and GDT technology into one package. These components have extremely low leakage current and extended reliability. Great for industrial applications that require minimal downtime.
BMS Transformer SM918x
SM915x
  • Working voltage up to 1.6kV
  • Hi-Pot upto 8kV DC or 5kV AC
  • Singal & dual channel option
  • Low DCR
  • Moisture Sensitivity level 1
  • Option of basic, functional, basic & reinforced isolation
  • Optional Signal & CMC in one package
  • Proven with key AFE manufacturers
Reliable signal isolation components optimized for accuracy, durability, and low noise across high-speed communication and networking interfaces. Bourns has approved parts with key AFE manufacturers customized for the applications.
Busbar Mounted Shunt RSJ
  • Current rating up to 6000A
  • 50mV & 100mV output
  • 0.042 to 0.333 mΩ resistance
  • Non inductive metal element
  • 0.25% tolerance.
Current sensing provides critical capabilities for accurate measurement of the charging and discharging current, which affects the life and functionality of the battery.
Vertical Power Delivery
Image Device Type Bourns Product Recommendations Specifications and Features Description
Fixed Inductor Multiphase TLVR
  • Dual & Quad phase
  • Low DCRHigh Efficiency
  • High Current Bias
  • Low profile
The TLVR architecture provides the advantage of phase coupling, enabling extremely fast transient response to sudden increases in load output that can scale to CPU, FPGA, and ASIC load requirements in amperage and bandwidth.
Current Sense Resistor CSS
CSM
  • Packages-2512, 5930, 4026, 3920
  • Resistance tolerance as low as ±1%
  • Temperature up to – 170C
  • Rated power  – 1.5-12W
  • EB welded metal strip
  • Very high power
  • Excellent long-term stability
  • Low resistance, low TCR
  • Low thermal EMF
Bourns developed its Model CSS and CSM series high power current sense resistors to satisfy the accurate measurement requirements of a wide range of applications. These resistors are manufactured using an electron beam-welded metal strip with iron chrome or manganese copper alloy resistive element giving them excellent electrical characteristics. They also feature copper alloy terminations that deliver additional mechanical strength and enable ease of solderability
Thermal Jumper Chip
  • Thermal conductivity: 170 W/m・K
  • High Insulation resistance
  • Operating temp -55 ~ 155℃
  • Low capacitance
Thermal dissipation is a unique SMD that provides high thermal conductivity while also possessing insulating properties
NTC Thermistors BTN04G
  • Power Rating 36-50 W
  • R = 10-100KΩ (±1-5%)
  • Max Power rating – 170mW
  • SMD NTC thermistor for thermal sense
  • Highly stable electrical characteristics
  • Operating temperature: -40 °C to +125 °C
Bourns® NTC thermistors are compact, surface-mount components that provide precise temperature sensing and compensation. With stable electrical performance and tight tolerance options, they are ideal for managing thermal conditions in applications like mobile devices, LED lighting, and battery packs.
Lateral Power Delivery
Image Device Type Bourns Product Recommendations Specifications and Features Description
Fixed Inductor TLVR1005
  • Inductance ranges – 70-200nH
  • Isat at 25°C – 58-160A
  • Low DCR
  • Irms = 77A(1-4) & 45A(2-3)
  • Inductance range: 70 to 200 Nh
  • Extremely high current capabilities (Irms up to 77 A and Isat up to 160 A)
  • Operating temperature range: -40 to 125 ˚C
  • Shielded construction for low radiation
The TLVR architecture provides the advantage of phase coupling, enabling extremely fast transient response to sudden increases in load output that can scale to CPU, FPGA, and ASIC load requirements in amperage and bandwidth.
Current Sense Resistor CSS
CSM
  • Packages-2512, 5930, 4026, 3920
  • Resistance tolerance as low as ±1%
  • Temperature up to – 170C
  • Rated power  – 1.5-12W
  • EB welded metal strip
  • Very high power
  • Excellent long-term stability
  • Low resistance, low TCR
  • Low thermal EMF
Bourns developed its Model CSS and CSM series high power current sense resistors to satisfy the accurate measurement requirements of a wide range of applications. These resistors are manufactured using an electron beam-welded metal strip with iron chrome or manganese copper alloy resistive element giving them excellent electrical characteristics. They also feature copper alloy terminations that deliver additional mechanical strength and enable ease of solderability.
Fixed Inductor SRP2313CC-xxxx
  • Inductance: 0.68uH to 150uH
  • Current up to 90A (Isat)
  • DCR max : 0.72mΩ to 80mΩ
  • Low radiation
  • Low buzz noise
  • Shielded construction
Bourns has compact, high-current inductors delivering stable performance, low EMI, and superior thermal handling in high-frequency power conversion systems. These are constructed using Metal alloy powder core with Enameled copper wire
Solid State Transformer
Image Device Type Bourns Product Recommendations Specifications and Features Description
Custom Magnetics
  • Designed for MV Grid
  • VDA 6.3, Factory IATF 16949 certified
  • High Frequency Power Topologies:
    Buck, Boost, SEPIC, CUK, Half and Full Bridge LLC,, Push-pull, Forward, Flyback
Bourns' custom Magnetics team can design and manufacture transformers and inductors for almost any power level, helping designers meet their application specific requirements. Customers are able to leverage Bourns' engineering expertise and advanced software design tools to expedite the development an optimized design. Plus, our engineering lab can provide fast turnaround prototype samples and manufacturing to support volume production goals.
IsoMOV™
  • Max. Voltage: 56-745 VDC
  • Max. Peak Current: 6-15 kA, 8/20 µs
  • Operating Temperature: -40 to +125 °C
  • Disc Size: 10-20 mm
  • Through-hole components
Combination of MOV and GDT technology into one package. These components have extremely low leakage current and extended reliability. Great for industrial applications that require minimal downtime.
PowerFuse™ PF63R50H
  • Rated Voltage up to 1000 VDC/800 VAC
  • Rated Current: 6-400 A
  • Interrupt Rating up to 160 kA
  • Designed to UL 248 & IEC 60269 standards
  • Multiple mounting types available
POWrFuse™ High-Power Fuses are rated at extremely high interrupting currents, providing reliable overcurrent and short-circuit protection.
High Voltage Resistor
  • Resistance Range: 100k Ω–100 MΩ
  • Power Rating: 0.1! – 1W
  • Tolerance: 1 %, 5 %
  • UL/IEC 60950 & 60065 compatible
  • UL 1676 recognized
  • Working voltage up to 3000V
Bourns is recognized as a leading provider of resistive goods, offering a comprehensive array of resistive elements that are suitable for a wide variety of application requirements. Our HV series is on Thick film technology available in different packages from 0602 to 2512
Current Sense Resistors CSS2H-5930
  • Resistance Range: 0.2-5 mΩ
  • Power Rating: 1.5-15 W
  • Tolerance: 1 %, 2 %, 5 %
  • Temperature Coefficient: 50 ppm
  • Surface mount
  • Low thermal EMF
Bare metal SMD shunts for precision monitoring of current. All three blocks will incorporate some form of current monitoring for accurate switching characteristics.
SPD
  • Current Rating: 25-200 kA, 8/20 µs
  • 1-4 pole configurations
  • Voltage ratings up to 690 VAC
  • Optional Thermal disconnect
  • UL 1449 Type 1 + Type 2
  • IEC 61643-11 Class I + II
DIN-rail mounted SPDs for ultimate overvoltage protection against surge events. These units absorb large amounts of energy before reaching critical systems.
Common Mode Choke CM4030
  • Inductance range 2.9mH to 8.9mH
  • Rated current: up to 25A
  • Energy-saving low power design
  • High efficiency, low power loss
  • Meets EU 94/62/EC standards
The CM4030 Series is designed for filtering common mode noise in a wide range of industrial and commercial applications such as energy storage, enterprise computing, and green energy. A high permeability nanocrystalline core results in self resonant frequencies up to 3 MHz - ideal for filtering high frequency switching supplies
Memory
Image Device Type Bourns Product Recommendations Specifications and Features Description
Fixed Inductors SRP2512CL
  • Inductance range-0.47-1.5uH
  • DCR – 9-36mohm
  • Saturation current ranges – 3.8-7.5A
  • Shielded construction
  • Nanocrystalline core
  • Operating temp. range of -40 to +125 °C
  • Offered in 3225 & 2520 SMD package sizes
Bourns is introducing two new shielded power inductor series specifically developed for the power management requirements of DDR5 systems.
ESD Suppressor CG0201MLU
  • Continuous voltage max – 24V
  • Clamping voltage – 25V
  • Very low capacitance – 0.05pF
  • RoHS compliant*
  • ESD protection >25 Kv
  • Low capacitance
The MLU family has been designed to protect equipment to IEC61000-4-2, Level 4 (±8 kV Contact / ±15 kV Air Discharge) ESD specifications targeted for high-speed USB 3.0/USB OTG, HDMI 1.4, DVI or IEEE1394 applications.
Surface Mount TVS Diode Array CD0201
  • Peak pulse current – 7A
  • ESD – contact-±12kV , air - ±15kV
  • Vclamp – 4V @ 7A
  • Bidirectional 2 volt TVS diode
  • Low capacitance - <0.2pf
  • High ESD protection
This model features high ESD protection: ±15 kV (air) and ±12 kV (contact) per IEC 61000-4-2, as well as superior surge clamping capability: 4 V @ 7 A (8/20 μs per IEC 61000-4-5).
Sulfur-Resistant CRTxxxx-AS
  • 10 Ω to 1 MΩ
  • 0.05% to 1%
  • Up to 0.25W
  • ±10 to ±50 ppm
  • Parts available up to 3W with higher tolerance
  • Thin Film & Thick film
  • Single chip resistors & Arrays
  • Surge withstand
Sulfur-resistant resistors had an approximately 20 times greater operating lifetime than the standard device. With the use of Bourns® sulfur-resistant film resistors and arrays, corrosion related type of hard failure can be substantially reduced or eliminated, resulting in improved system reliability, performance, robustness and reduction of downtime.
NTC Thermistors BTN04G
  • Power Rating 36-50 W
  • R = 10-100KΩ (±1-5%)
  • Max Power rating – 170mW
  • SMD NTC thermistor for thermal sense
  • Highly stable electrical characteristics
  • Operating temperature: -40 °C to +125 °C
Bourns® NTC thermistors are compact, surface-mount components that provide precise temperature sensing and compensation. With stable electrical performance and tight tolerance options, they are ideal for managing thermal conditions in applications like mobile devices, LED lighting, and battery packs.
Networking
Image Device Type Bourns Product Recommendations Specifications and Features Description
TBU® High-Speed Protectors (HSPs)
  • Bidirectional and unidirectional
  • Max impulse voltage – 250-800V
  • Trigger current – 50-500mA
  • Trigger time as low as – 0.2usec
  • Triggers at a specified current
  • Can block voltages up to 850 V, enabling easy coordination
  • Provides superior protection in less than 1 us
Bourns® TBU® High-Speed Protectors (HSPs) are circuit protection devices constructed using MOSFET semiconductor technology. When placed in series with a signal line, the TBU® HSP monitors the current f lowing through the line. If the current exceeds a preset level, the TBU® HSP triggers, providing an effective barrier to high voltages and currents
TCS™ High-Speed Protectors
  • Peak impulse voltage – 40V
  • Low insertion loss
  • Max series resistance of 1.3-3Ω
  • Channel to channel match ±0.02Ω
  • 50 ns response time
  • Low let-through energy
  • Low series resistance
  • Well-matched channel to channel resistance
The Bourns® TCS™ DL Series High-Speed Protector (HSP) products contain dual, well-matched, low resistance, bidirectional, very high-speed Transient Current Suppressors. By limiting the maximum current to a safe level
Surface Mounts TVS Diode Array CDDFN10-2574N
  • Peak pulse current – 45A
  • Breakdown voltage max -7V
  • Capacitance – 2.5pf
  • IEC 61000-4-2 (ESD) ±30 kV (Air/Contact)
  • IEC 61000-4-5 (Lightning) 45 A (8/20 μs) n ESD protection to IEC 61000-4-2 (Level 4)
The Model CDDFN10-2574N device provides Electrostatic Discharge (ESD), Electrical Fast Transients (EFT), Lightning, and Cable Discharge Event (CDE) protection for high-speed data ports, meeting IEC 61000-4-2 (ESD) requirements.
LAN Transformer SM43P01EL
SM43001EL
SM42P01EL
  • Inductance of 120uH – 230uH
  • Hi-Pot 1500Vac
  • Data rate up to 10GbE
  • •EEE 802.3 Ethernet compatible •Built in Common Mode Choke •Available with PoE+ option
Bourns LAN Transformers are available in 10*16 compact size with built in PoE+ & CMC. These integrated modules are useful for compact designs. PoE+ current available up to 600mA
LAN Transformer SM453230
  • Compact size of 4.7x3.3x2.9mm
  • 10GbE data rate •Hi-Pot 1500Vac
  • IEEE 802.3 Ethernet compatible
  • PoE+ Capable
SM453230-121N7Yx series having Discrete transformers and common mode chip inductors for flexible PCB layout. These devices pairs with common mode chip inductor SRF2012-900YA for EMI reduction.
Battery Energy Storage System
Image Device Type Bourns Product Recommendations Specifications and Features Description
Varistor Through-hole: MOV
SMD: PV
  • Max. Voltage: 14-1465 VDC
  • Max. Peak Current: 100-15000 A, 8/20 µs
  • Operating Temperature: -55 to +125 °C
  • Up to 23 mm disc sizes
  • Through-hole and SMD packaging available
  • UL 1449 Listed
MOVs are conventional overvoltage protection components that offer an industry-standard form. These components “clamp” excess voltage conditions.
IsoMOV™
  • Max. Voltage: 56-745 VDC
  • Max. Peak Current: 6-15 kA, 8/20 µs
  • Operating Temperature: -40 to +125 °C
  • Disc Size: 10-20 mm
  • Through-hole components
Combination of MOV and GDT technology into one package. These components have extremely low leakage current and extended reliability. Great for industrial applications that require minimal downtime.
Gas Discharge Tube (GDT) GDT25
  • Breakdown Voltage: 75-800 V
  • Up to 25kA peak current, 8/20 µs waveform
  • Operating Temperature: -55 to +125 °C
  • SMD and through-hole packages available
GDTs are a conventional overvoltage protection component with high surge current capacities. These components “crowbar” when excess voltage is present.
Power Fuse PF-FB2-400
  • Rated Voltage up to 1000 VDC/800 VAC
  • Rated Current: 6-400 A
  • Interrupt Rating up to 160 kA
  • Designed to UL 248 & IEC 60269 standards
  • Multiple mounting types available
  • Automotive grade fuses offered (ISO8820-8)
POWrFuse™ High-Power Fuses are rated at extremely high interrupting currents, providing reliable overcurrent and short-circuit protection.
SPD
  • Up to 200kA Surge Protection
  • 12-1500 VDC rated
  • AC & DC Surge Protection Devices
  • Meets UL1449, IEC/EN 61643-11
  • Available in single pole and multipole configuration
Bourns® Surge Protective Devices (SPDs) are designed to protect sensitive equipment from damage caused by lightning and electrical transient surges. SPDs are protective devices that integrate discrete circuit protection devices into an assembly or system that provides an enhanced level of functionality and protection.
Specialty Transformers HCTSM150102HLF
  • Working voltage up to 1500 VDC
  • Hi-Pot: 7640 VDC, 1mA, 2 s
  • Creepage, Clearance Distance > 15 mm
  • UL Compliant
  • High Creepage and Clearance
  • Small Footprint
Bourns Model HCT Series Transformers offer a large amount of creepage and clearance corresponding to multiple standards where designers are working with voltages up to 1500 VDC. The HCT Series meets safety and isolation standards in a very small footprint
Current Sense Resistors CSS2H-2512R-L500FE
  • •Resistance Range: 0.2-5 mΩ
  • Power Rating: 1.5-15 W
  • Tolerance: 1 %, 2 %, 5 %
  • Temperature Coefficient: 50 ppm
  • Surface mount
  • Low thermal EMF
Bare metal SMD shunts for precision monitoring of current.
Wirewound Power Resistors UB3C-100RF1
  • Resistance Range: 0.02-260 kΩ
  • Power Rating: 1 – 15 W
  • Tolerance: 0.01 % - 10 %
  • Low TCR: ±20PPM/°C
  • Through-hole package
  • Wirewound technology
Wirewound resistors are known for precision and robustness. These are used for high precision and to manage high power and pulse loads.
BMS Transformer SM91501AL
  • OCL: 150 – 600
  • Working Voltage: 1000 – 1600V
  • Hi-pot Isolation: 4300 – 7640 VDC
  • AEC-Q200 Compliant
  • Supports serial daisy chain isoSPI interface
BMS Transformers are high-reliability isolation and signal transformers designed for Battery Management Systems (BMS) in electric vehicles, energy storage systems, and industrial battery packs to provide reinforced galvanic isolation for cell voltage sensing and communication.
NTC Thermistors BTN04G
  • Power Rating 36-50 W
  • R = 10-100KΩ (±1-5%)
  • Max Power rating – 170mW
  • SMD NTC thermistor for thermal sense
  • Highly stable electrical characteristics
  • Operating temperature: -40 °C to +125 °C
Bourns® NTC thermistors are compact, surface-mount components that provide precise temperature sensing and compensation. With stable electrical performance and tight tolerance options, they are ideal for managing thermal conditions in applications like mobile devices, LED lighting, and battery packs.
PTVS Diode PTVS1-240C-M
  • Standoff Voltage: 15-470 V
  • Max. Peak Current: 1-20 kA, 8/20 µs
  • Offered in through-hole and SMD packages
  • Bidirectional
Power TVS diodes provide outstanding secondary protection for direct current (DC) bus applications. TVS diodes provide tighter clamping with superior speed over traditional MOV technology.
Power Thick Film Resistors PWR163
PWR263
PF2270
  • Resistance Range: 0.02-130 kΩ
  • Power Rating up to 300 W
  • Tolerance: 0.01 % - 10 %
  • Low Inductance
  • Variety of packages and footprints available
  • Resistor electrically isolated from backplate
  • Suitable for most types of soldering processes
Bourns offers a broad range of PWR-series high power thick film resistors with standard packages, surface mounted TO-163 and TO-263 (DPAK and D2PAK) and radial leaded through hole TO-220 and TO-247.
Thick Film on Steel
  • Power Rating 260 W
  • Maximum Element Temperature 365 °C
  • Low profile thick-film on steel
  • Low inductance
Bourns Thick Film on Steel offers high-power use in braking resistor applications.  Available with standard  solder pads or push-on terminal connections.
Standard Power Inductors and Customized Magnetics Boost Inductors
Common Mode Chokes
SMD Power Inductors
High Isolation Transformers
Bourns offers custom transform transformers, inductors, and common mode chokes. Please contact Bourns Inc. for more details.
  • Stable inductance vs. current
  • Low profileLow coupling
  • Minimal Leakage
With over 50 years of magnetics innovation, Bourns offers end-to-end design and manufacturing for custom transformers, inductors, and common mode chokes. Our global engineering teams leverage advanced simulation tools and rapid prototyping to deliver high-performance, application-specific magnetics — from single prototypes to full-volume production.
Thermal Jumper Chip
  • Thermal conductivity: 170 W/m・K
  • High Insulation resistance
  • Operating temp -55 ~ 155℃
  • Low capacitance
Thermal dissipation is a unique SMD that provides high thermal conductivity while also possessing insulating properties

Reference Designs

Partner Application Key parts
TI 15KW, Bidirectional, Three phase with Neutral, multi level inverter SF-3812F2500T-2, MH1608-601Y, MAG-3002584, SDR0302-150ML, MAG-3002585, ISOM5-275-B-L2
Partner Application Key parts
TI Open Rack server PSU Power T/F, PFC Inductor, CMC

Addtional Resources