1N5377A/TR12

Overview

The Microsemi Corporation 1N5377A/TR12 is a silicon 5-watt Zener diode with a nominal voltage of 91 V and ±10% tolerance. It operates in the -65°C to +150°C range, features a T-18 axial lead package, and includes a tape-and-reel option for automated assembly.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and offers flexible axial-lead mounting terminals
• Features void-free transfer molded epoxy body meeting UL94V-0 standards

Applications

• Voltage regulation in power supply circuits
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in measurement systems

Procurement Notes

Verify the exact part number suffix against official Microsemi documentation to confirm tolerance and packaging specifications. Confirm RoHS compliance status if required by your manufacturing process. Check for any specific military screening prefixes if applicable to your application requirements.

Selection Notes

Select this component when a 91 V Zener voltage with ±10% tolerance is required. Ensure adequate heat sinking is provided to maintain performance within the specified thermal resistance limits. Consider the T-18 package dimensions for PCB layout compatibility.

Part Context

This device belongs to the JEDEC registered 1N5333B through 1N5388B series of 5-watt Zener diodes. The series covers a wide voltage range from 3.3 V to 200 V, offering various tolerance options identified by specific suffix letters on the part number.

Replacement Considerations

Consult Microsemi's official documentation for verified substitute part numbers. Cross-reference electrical characteristics such as Zener voltage, power dissipation, and package type to ensure functional equivalence.