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Product Detailed Parameters
- Description：DIODE ZENER 22V 1W DO204AL
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：22 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：23 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 16.7 V
- Operating Temperature：-55°C ~ 175°C
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The 1N3028B-1 is a Zener diode manufactured by Microchip Technology, designed for through-hole mounting in the DO-204AL (DO-41) axial package. It features a nominal Zener voltage of 22 V with a tolerance of ±5% and a maximum power dissipation of 1 W. The device exhibits a maximum Zener impedance of 23 Ohms and operates within a temperature range of -55°C to 175°C. Electrical characteristics include a reverse leakage current of 10 µA at 16.7 V and a forward voltage of 1.2 V at 200 mA.
Feature Summary
- Provides stable voltage regulation at a nominal 22 V level with tight manufacturing tolerances.
- Capable of handling high thermal loads with a 1 W power dissipation rating.
- Engineered for extended operational reliability across extreme industrial temperature environments.
Applications
- Precision voltage reference circuits
- Overvoltage protection stages
- Voltage regulator topologies
Procurement Notes
Verify component authenticity and datasheet alignment prior to integration. Confirm that the specific ordering suffix matches the required electrical parameters and packaging configuration. Ensure compliance with applicable environmental regulations and quality standards relevant to the target deployment environment.
Selection Notes
Select this component when a robust 1 W axial Zener diode is required for high-reliability applications. Consider the specific operating temperature range and impedance requirements to ensure compatibility with the circuit design constraints and performance expectations.
Part Context
This part belongs to the standard 1N30xx series of Zener diodes produced by Microchip Technology. These components are widely utilized in industrial and military-grade electronics where consistent voltage regulation and durability under harsh conditions are critical design requirements.
Replacement Considerations
Public confirmed substitute part numbers: 1N4748AG, 1N4748A, 1N4748A-T50A, 1N4748ATR.
FAQ
What is the maximum power dissipation rating?
The maximum power dissipation is rated at 1 W.
Does the component support high-temperature operation?
Yes, the device supports an operating temperature range up to 175°C.
