1N5380BE3/TR12

Overview

The Microsemi Corporation 1N5380BE3/TR12 is a silicon Zener diode with a nominal voltage of 120 V and a power dissipation rating of 5.0 W at 25 °C. It features a ±5% tolerance, indicated by the 'B' suffix, and operates within a temperature range of -65 °C to +150 °C. The device utilizes an axial-lead T-18 package and includes a tape-and-reel option denoted by the 'TR12' suffix. Electrical characteristics include a maximum reverse current of 0.5 µA and a dynamic impedance of 170 Ω.

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
• Features flexible axial-lead mounting terminals for through-hole applications
• Moisture classification Level 1 requiring no dry pack

Applications

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

Procurement Notes

Verify that the ordering suffix matches the required specifications: 'B' indicates ±5% tolerance, 'e3' confirms RoHS compliance, and 'TR12' specifies the tape-and-reel packaging format. Confirm the manufacturer designation as Microsemi Corporation or its successor entity. Ensure the component meets the specified thermal resistance and power derating requirements for the intended application environment.

Selection Notes

Select this component when a 120 V Zener voltage with 5 W power handling capability is required. The ±5% tolerance suits standard regulation needs. Consider the T-18 axial package for through-hole assembly. Evaluate thermal management strategies, as steady-state power dissipation decreases significantly when mounted on FR4 PCBs compared to direct lead heating.

Part Context

This part belongs to the JEDEC registered 1N5333B through 1N5388B series of 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3 V to 200 V. The 'e3' suffix denotes RoHS-compliant tin plating, while the 'TR' suffix indicates availability in tape-and-reel packaging for automated assembly processes.

Replacement Considerations

Cross-reference with other manufacturers offering 1N5380 equivalents. Verify that substitute parts match the 120 V Zener voltage, 5 W power rating, T-18 package dimensions, and ±5% tolerance. Ensure thermal characteristics and maximum surge current ratings are compatible with the original design constraints.