1N5991B is available for purchase but is not normally stocked.
Available Substitutes:

Direct


Microchip Technology
In Stock: 0
Unit Price: $2.55641
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Direct


Microchip Technology
In Stock: 0
Unit Price: $2.21761
Datasheet

Parametric Equivalent


Microchip Technology
In Stock: 0
Unit Price: $4.26579
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Parametric Equivalent


Microchip Technology
In Stock: 0
Unit Price: $4.03481
Datasheet

Parametric Equivalent


Microchip Technology
In Stock: 0
Unit Price: $4.23500
Datasheet

Parametric Equivalent


Microchip Technology
In Stock: 0
Unit Price: $5.32841
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Parametric Equivalent


Microchip Technology
In Stock: 0
Unit Price: $5.52858
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Datasheet
Zener Diode 4.3 V 500 mW ±5% Through Hole DO-204AH (DO-35)
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

1N5991B

DigiKey Part Number
1N5991BMS-ND
Manufacturer
Manufacturer Product Number
1N5991B
Description
DIODE ZENER 4.3V 500MW DO204AH
Manufacturer Standard Lead Time
22 Weeks
Customer Reference
Detailed Description
Zener Diode 4.3 V 500 mW ±5% Through Hole DO-204AH (DO-35)
Datasheet
 Datasheet
Product Attributes
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Category
Current - Reverse Leakage @ Vr
5 µA @ 1 V
Mfr
Voltage - Forward (Vf) (Max) @ If
1.1 V @ 200 mA
Packaging
Bulk
Operating Temperature
-65°C ~ 175°C
Part Status
Active
Mounting Type
Through Hole
Voltage - Zener (Nom) (Vz)
Package / Case
Tolerance
±5%
Supplier Device Package
DO-204AH (DO-35)
Power - Max
500 mW
Base Product Number
Impedance (Max) (Zzt)
88 Ohms
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (19)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
1N3509AMicrochip Technology01N3509A-ND$2.55641Direct
1N749A-1Microchip Technology01N749A-1-ND$2.21761Direct
1N5991CMicrochip Technology01N5991C-ND$4.26579Parametric Equivalent
1N5991CE3Microchip Technology0150-1N5991CE3-ND$4.03481Parametric Equivalent
1N5991CE3/TRMicrochip Technology0150-1N5991CE3/TR-ND$4.23500Parametric Equivalent
Available To Order
Check Lead Time
This product is not kept in stock at DigiKey. The lead time shown will apply to the manufacturer’s shipment to DigiKey. Upon receiving the product, DigiKey will ship to fill open orders.
All prices are in USD
Bulk
QuantityUnit PriceExt Price
455$2.12521$966.97