Discrete Semiconductor Products

1N5991A

Active

Microchip Technology

VOLTAGE REGULATOR DO-35 ROHS COMPLIANT: YES

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DocumentsProduct Change Notice EN

Discrete Semiconductor Products

1N5991A

Active

Microchip Technology

VOLTAGE REGULATOR DO-35 ROHS COMPLIANT: YES

Deep-Dive with AI

DocumentsProduct Change Notice EN

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	1N5991A

Current - Reverse Leakage @ Vr	15 µA
Impedance (Max) (Zzt) [Max]	90 Ohms
Mounting Type	Through Hole
Operating Temperature [Max]	347 °F
Operating Temperature [Min]	-65 ░C
Package / Case	Axial, DO-35, DO-204AH
Power - Max [Max]	500 mW
Supplier Device Package	DO-204AH (DO-35)
Tolerance	10 %
Voltage - Forward (Vf) (Max) @ If	1.1 V
Voltage - Zener (Nom) (Vz)	4.3 V

1N5991UR-1-Zener-Diode Series

Zener Diode Single 2-Pin 4.3V, 1%, 88Ohm, 500mW DO-35 Bag

Part	Impedance (Max) (Zzt) [Max]	Package / Case	Power - Max [Max]	Voltage - Forward (Vf) (Max) @ If	Current - Reverse Leakage @ Vr	Voltage - Zener (Nom) (Vz)	Operating Temperature [Min]	Operating Temperature [Max]	Mounting Type	Tolerance	Supplier Device Package
Microchip Technology 1N5991A	90 Ohms	Axial DO-204AH DO-35	500 mW	1.1 V	15 µA	4.3 V	-65 ░C	347 °F	Through Hole	10 %	DO-204AH (DO-35)
Microchip Technology 1N5991D	88 Ohms	Axial DO-204AH DO-35	500 mW	1.1 V	5 µA	4.3 V	-65 ░C	347 °F	Through Hole	1 %	DO-204AH (DO-35)
Microchip Technology 1N5991UR
Microchip Technology 1N5991B	88 Ohms	Axial DO-204AH DO-35	500 mW	1.1 V	5 µA	4.3 V	-65 ░C	347 °F	Through Hole	5 %	DO-204AH (DO-35)
Microchip Technology 1N5991UR-1

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Bulk	477	$ 1.73
Newark	Each	100	$ 1.73
		500	$ 1.64

Description

General part information

1N5991UR-1-Zener-Diode Series

The popular 1N5985B-1 thru 1N6031B-1 series of 0.5 watt Zener voltage regulators provides a selection from 2.4 to 200 volts in 10%, 5%, 2% and 1% tolerances. These axial-leaded, glass, DO-35 packaged Zeners are also available in various military equivalent screening levels by adding a prefix identifier as described in the "part nomenclature" section. Microchip also offers numerous other Zener products to meet higher and lower power applications.

Documents

Technical documentation and resources

Product Change Notice EN

Datasheet