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Product Detailed Parameters
- Description：DIODE ZENER 20V 5W T18
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：20 V
- Tolerance：±10%
- Power - Max：5 W
- Impedance (Max) (Zzt)：3 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 14.4 V
- Operating Temperature：-65°C ~ 150°C
- Mounting Type：Through Hole
- Package / Case：T-18, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 1 A
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N5357AE3/TR12 is a silicon 5-watt Zener diode with a nominal voltage of 20V and a ±10% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum reverse current of 0.5 µA at 14.4V and a dynamic impedance of 3.0 Ω at a test current of 65 mA. The component utilizes an axial-lead T-18 package and is supplied in tape and reel format.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Withstands high surge stresses and exhibits minimal voltage change versus current variations
- Features flexible axial-lead mounting terminals for through-hole integration
Applications
- Voltage regulation circuits requiring 5W power dissipation
- High surge stress environments
- Applications utilizing flexible axial-lead mounting
Procurement Notes
Verify the specific suffix configuration against official datasheets to confirm tolerance and packaging details. Ensure compatibility with thermal management requirements given the 5W power rating. Confirm RoHS compliance status and lead plating specifications prior to procurement to meet environmental standards.
Selection Notes
Select this component for applications requiring a 20V reference with ±10% tolerance. Consider the 5W power dissipation capability and the -65°C to +150°C operating range. Verify that the T-18 axial package fits the mechanical constraints and that the tape and reel format aligns with automated assembly processes.
Part Context
This device belongs to the JEDEC registered 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. Manufactured by Microsemi (now part of Microchip Technology), these components are designed for robust voltage regulation in demanding electronic environments.
Replacement Considerations
Compatible replacements include other 1N5357 variants from the same series, such as 1N5357B or 1N5357C, provided the voltage tolerance matches the design requirements. Cross-reference with equivalent 5W Zener diodes from other manufacturers if sourcing availability is limited.
