Polymeric PTC Resettable Fuse 30V 3 A Ih Through Hole Radial, Disc
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Polymeric PTC Resettable Fuse 30V 3 A Ih Through Hole Radial, Disc
Building Automation – Protect/Sense/Control
Basics of NTC and PTC Thermistors - Another Teaching Moment

RUEF300U

DigiKey Part Number
RUEF300U-ND
Manufacturer
Manufacturer Product Number
RUEF300U
Description
PTC RESET FUSE 30V 3A RADIAL
Manufacturer Standard Lead Time
17 Weeks
Customer Reference
Detailed Description
Polymeric PTC Resettable Fuse 30V 3 A Ih Through Hole Radial, Disc
Datasheet
 Datasheet
EDA/CAD Models
RUEF300U Models
Product Attributes
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Category
Time to Trip
10.8 s
Manufacturer
Littelfuse Inc.
Resistance - Initial (Ri) (Min)
20 mOhms
Series
Resistance - Post Trip (R1) (Max)
80 mOhms
Packaging
Bag
Operating Temperature
-40°C ~ 85°C
Part Status
Active
Mounting Type
Through Hole
Type
Polymeric
Package / Case
Radial, Disc
Voltage - Max
30V
Size / Dimension
0.449" L x 0.118" W (11.40mm x 3.00mm)
Current - Hold (Ih) (Max)
3 A
Height - Seated (Max)
0.650" (16.50mm)
Current - Trip (It)
6 A
Lead Spacing
0.199" (5.05mm)
Current - Max
100 A
Approval Agency
CQC, CSA, TUV, UL
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (5)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
RUEF300Littelfuse Inc.47,344RUEF300HF-ND$0.62000Parametric Equivalent
RUEF300-2Littelfuse Inc.33,076RUEF300-2HFTR-ND$0.82000Parametric Equivalent
RUEF300U-2Littelfuse Inc.5,83918-RUEF300U-2TR-ND$0.77000Parametric Equivalent
RUEF300K-APLittelfuse Inc.1,722RUEF300K-APCT-ND$0.77000Parametric Equivalent
RUEF300-APLittelfuse Inc.1,645RUEF300-APHFCT-ND$0.77000Parametric Equivalent
In-Stock: 730
Check for Additional Incoming Stock
All prices are in USD
Bag
QuantityUnit PriceExt Price
1$0.66000$0.66
5$0.54600$2.73
10$0.50400$5.04
50$0.41840$20.92
100$0.38610$38.61
250$0.34712$86.78
500$0.32016$160.08
1,000$0.29520$295.20
5,000$0.24407$1,220.35
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