1N5380B/TR8

Overview

The Microsemi Corporation 1N5380B/TR8 is a silicon 5-watt Zener diode with a nominal voltage of 120 V and ±5% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum reverse current of 0.5 µA and a dynamic impedance of 170 Ω at a test current of 10 mA. The component utilizes an axial-lead T-18 package and includes a TR suffix indicating tape and reel packaging.

Feature Summary

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

Applications

• Voltage regulation circuits requiring 120 V reference
• Power supply overvoltage protection
• Industrial equipment transient suppression

Procurement Notes

Verify the specific manufacturer origin as Microsemi or its successor entities due to corporate acquisitions. Confirm RoHS compliance status by checking for the e3 suffix if lead-free terminals are required. Ensure the TR suffix matches the intended automated assembly process requirements.

Selection Notes

Select this component when a 120 V Zener diode with 5 W power dissipation is needed. Consider the ±5% tolerance and 170 Ω dynamic impedance for circuit stability. Verify thermal management capabilities for continuous operation at maximum ratings.

Part Context

This device belongs to the JEDEC registered 1N5333B through 1N5388B series of axial-leaded 5.0 watt Zeners. The series covers voltages from 3.3 to 200 volts, offering various tolerance options identified by suffix letters such as B for ±5%. These plastic encapsulated components provide moisture classification Level 1 without dry pack requirements.

Replacement Considerations

Equivalent parts include the 1N5380B (bulk) and 1N5380B-TP. Cross-reference with other manufacturers' 5W 120V Zener diodes in the DO-15 or T-18 package.