1N5373C/TR8

Overview

The Microchip Technology 1N5373C/TR8 is a silicon 5-watt Zener diode with a nominal voltage of 68 V and a ±2% tolerance. It operates within a temperature range of -65°C to +150°C and features a T-18 axial lead package. Electrical characteristics include a maximum dynamic impedance of 44 ohms, a maximum reverse current of 0.5 µA, and a maximum regulator current of 500 mA.

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 applications

Applications

• Voltage regulation in power supply circuits
• Overvoltage protection systems
• Reference voltage generation in electronic instrumentation

Procurement Notes

Verify the component authenticity by checking manufacturer markings against official datasheet specifications. Confirm the suffix 'TR8' indicates tape and reel packaging. Ensure the part meets required environmental standards and thermal management needs for the intended application.

Selection Notes

Select this component when a stable 68 V reference with high precision is required. The 5 W power rating supports significant current handling. Consider the T-18 package size for board space constraints and verify thermal derating requirements for high ambient temperatures.

Part Context

This device belongs to the JEDEC registered 1N5333B through 1N5388B series of 5-watt Zener diodes. The 'C' suffix denotes a tighter ±2% voltage tolerance compared to standard variants. The 'TR8' suffix specifies the reel packaging format for automated assembly processes.

Replacement Considerations

Compatible substitutes within the same series include the 1N5373B (±5% tolerance) or 1N5373D (±1% tolerance). Verify that replacement parts maintain the same 5 W power rating and T-18 package dimensions.