1N4491

Active

Microchip Technology

ZENER DIODE SINGLE 2-PIN 120V, 5%, 1500MW DO-41 BAG

1N4491

Active

Microchip Technology

ZENER DIODE SINGLE 2-PIN 120V, 5%, 1500MW DO-41 BAG

Description Specifications Series Pricing CAD Documents

Description

General part information

1N4491 Series

This surface mount, Zener voltage regulator series is military qualified to MIL-PRF-19500/406 and is ideal for high-reliability applications where a failure cannot be tolerated. These industry recognized 1.5 watt Zener voltage regulators are hermetically sealed with void-less glass construction using an internal metallurgical bond. It includes Zener selections from 3.3 to 200 volts in standard 5% tolerance. 1% and 2% tolerance versions are also available. Microchip also offers numerous other Zener products to meet higher and lower power ratings in both thru-hole and surface mount packages.

Technical Specifications

Parameters and characteristics for this part

Specification	1N4491

Current - Reverse Leakage	250 nA
Impedance (Max) (Zzt)	400 Ohms
Mounting Type	Through Hole
Operating Temperature (Max)	175 °C
Operating Temperature (Min)	-65 °C
Package / Case	Axial, DO-204AL, DO-41
Package Name	DO-204AL (DO-41)
Power - Max	1.5 W
Tolerance	5 %
Voltage - Forward (Vf) (Max)	1.5 V
Voltage - Zener (Nom) (Vz)	120 V

1N4491 Series

Zener Diode Single 2-Pin 120V, 5%, 1500mW A-MELF Bag

Part	Tolerance	Package Name	Package / Case	Impedance (Max) (Zzt)	Power - Max	Operating Temperature (Min)	Operating Temperature (Max)	Current - Reverse Leakage	Voltage - Forward (Vf) (Max)	Mounting Type	Voltage - Zener (Nom) (Vz)	Grade	Qualification
Microchip Technology 1N4491	5 %	DO-204AL (DO-41)	Axial DO-204AL DO-41	400 Ohms	1.5 W	-65 °C	175 °C	250 nA	1.5 V	Through Hole	120 V
Microchip Technology JAN1N4491C	2 %	DO-204AL (DO-41) DO-41	Axial DO-204AL DO-41	400 Ohms	1.5 W	-65 °C	175 °C	250 nA	1 V	Through Hole	120 V	Military	406 MIL-PRF-19500
Microchip Technology JAN1N4491DUS	1 %	D-5A	A SQ-MELF	400 Ohms	1.5 W	-65 °C	175 °C	250 nA	1 V	Surface Mount	120 V	Military	406 MIL-PRF-19500
Microchip Technology 1N4491US	5 %	A SQ-MELF	A SQ-MELF	400 Ohms	1.5 W	-65 °C	175 °C	250 nA	1.5 V	Surface Mount	120 V
Microchip Technology JAN1N4491US	5 %	D-5A	A SQ-MELF	400 Ohms	1.5 W	-65 °C	175 °C	250 nA	1 V	Surface Mount	120 V	Military	406 MIL-PRF-19500
Microchip Technology JAN1N4491CUS	2 %	D-5A	A SQ-MELF	400 Ohms	1.5 W	-65 °C	175 °C	250 nA	1 V	Surface Mount	120 V	Military	406 MIL-PRF-19500
Microchip Technology JAN1N4491D	1 %	DO-204AL (DO-41)	Axial DO-204AL DO-41	400 Ohms	1.5 W	-65 °C	175 °C	250 nA	1 V	Through Hole	120 V	Military	406 MIL-PRF-19500

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Product Change Notice EN

1N4460-1N4496.1N6485-1N6491

Datasheet

1N4491 | Datasheet