1N5357C/TR8

Overview

The Microchip Technology 1N5357C/TR8 is a silicon 5-watt Zener diode with a nominal voltage of 20V and a ±2% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum reverse current of 0.5µA at 14.4V and a dynamic impedance of 3.0Ω at a test current of 65mA. The device utilizes an axial-lead T-18-2 package and is supplied in tape-and-reel format.

Feature Summary

• Provides precise voltage regulation with tight manufacturing tolerances
• Capable of handling high surge stresses and steady-state power dissipation
• Features flexible axial-lead mounting terminals for through-hole integration

Applications

• Voltage regulation circuits requiring stable reference levels
• Power supply protection against overvoltage conditions
• Clamping applications in electronic systems

Procurement Notes

Verify the component origin carefully as this part number originates from the Microsemi Scottsdale Division, which has undergone corporate restructuring and acquisition by Microchip Technology. Confirm that the specific revision level matches your design requirements and check for any discontinuance notifications or lifecycle status updates from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a 5-watt power rating and a 20V breakdown voltage are required. The C suffix indicates a strict ±2% tolerance suitable for precision applications. Ensure adequate heat sinking is provided to maintain performance within the specified thermal resistance limits during operation.

Part Context

This device belongs to the JEDEC registered 1N5333 through 1N5388B series of axial-leaded silicon Zener diodes. These components are designed for robust voltage regulation across a wide selection of voltages from 3.3V to 200V, offering various tolerance options identified by specific suffix letters on the part number.

Replacement Considerations

Compatible substitutes include other parts within the 1N5333B-1N5388B series that match the 20V specification and ±2% tolerance requirement. Verify mechanical dimensions and thermal characteristics to ensure interchangeability.