1N749

Active

Microchip Technology

ZENER DIODE SINGLE 2-PIN 4.3V, 10%, 18OHM, 500MW DO-35 BAG

Find alt

Alpha

1N749

Active

Microchip Technology

ZENER DIODE SINGLE 2-PIN 4.3V, 10%, 18OHM, 500MW DO-35 BAG

Find alt

Alpha

Description Specifications Series Pricing CAD Documents

Description

General part information

1N749 Series

This popular series of 500 mW Zener voltage regulators provides a selection from 2.4 to 12 volts in a standard 5% tolerance as well as available tighter 2% and 1% tolerances. These glass, surface mount DO-213AA Zeners feature an internal metallurgical bond and are military qualified to the JAN, JANTX, and JANTXV level. A RoHS compliant commercial grade only version is also available.

Technical Specifications

Parameters and characteristics for this part

Specification	1N749

Current - Reverse Leakage	2 µA
Impedance (Max) (Zzt)	22 Ohms
Mounting Type	Through Hole
Operating Temperature (Max)	175 °C
Operating Temperature (Min)	-65 °C
Package / Case	Axial, DO-35, DO-204AH
Package Name	DO-204AH (DO-35)
Power - Max	0.5 W
Tolerance	10 %
Voltage - Forward (Vf) (Max)	1.1 V
Voltage - Zener (Nom) (Vz)	4.3 V

1N749 Series

Zener Diode Single 2-Pin 4.3V, 2%, 22Ohm, 500mW DO-213AA Bag

Part	Package Name	Impedance (Max) (Zzt)	Power - Max	Voltage - Forward (Vf) (Max)	Operating Temperature (Min)	Operating Temperature (Max)	Voltage - Zener (Nom) (Vz)	Current - Reverse Leakage	Package / Case	Mounting Type	Tolerance	Grade	Qualification
Microchip Technology 1N749	DO-204AH (DO-35)	22 Ohms	0.5 W	1.1 V	-65 °C	175 °C	4.3 V	2 µA	Axial DO-204AH DO-35	Through Hole	10 %
Microchip Technology JANTX1N749DUR-1	DO-213AA	22 Ohms	0.5 W	1.1 V	-65 °C	175 °C	4.3 V	2 µA	DO-213AA	Surface Mount	1 %	Military	127 MIL-PRF-19500
Microchip Technology 1N749A-1	DO-204AH (DO-35)	18 Ohms	0.5 W	1.1 V	-65 °C	175 °C	4.3 V	2 µA	Axial DO-204AH DO-35	Through Hole	5 %
Microchip Technology 1N749A	DO-204AH (DO-35)	22 Ohms	0.5 W	1.1 V	-65 °C	175 °C	4.3 V	2 µA	Axial DO-204AH DO-35	Through Hole	5 %
Microchip Technology JANTX1N749D-1	DO-204AH (DO-35)	22 Ohms	0.5 W	1.1 V	-65 °C	175 °C	4.3 V	2 µA	Axial DO-204AH DO-35	Through Hole	1 %	Military	127 MIL-PRF-19500
Microchip Technology JANTX1N749CUR-1	DO-213AA	22 Ohms	0.5 W	1.1 V	-65 °C	175 °C	4.3 V	2 µA	DO-213AA	Surface Mount	2 %	Military	127 MIL-PRF-19500
Microchip Technology JANTXV1N749D-1	DO-204AH (DO-35)	22 Ohms	0.5 W	1.1 V	-65 °C	175 °C	4.3 V	2 µA	Axial DO-204AH DO-35	Through Hole	1 %	Military	127 MIL-PRF-19500

Pricing

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

Create a free account to access distributor pricing data.

CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

1N749 | Datasheet

1N746A-1-1N759A-1,1N4370A-1-1N4372A-1

Product Change Notice EN