1N5380/TR12

Overview

The Microsemi Corporation 1N5380/TR12 is a silicon unidirectional voltage regulator diode belonging to the JEDEC registered 1N5333-5388B series. It features a nominal Zener voltage of 120 V with a ±5% tolerance, rated for 5.0 watts power dissipation at 25°C. The device utilizes an axial-lead T-18 plastic package and operates within a temperature range of -65°C to +150°C. Electrical characteristics include a maximum dynamic impedance of 170 ohms, a maximum reverse current of 0.5 µA, and a maximum regulator current of 39.5 mA.

Feature Summary

• Provides stable voltage regulation across broad operating current and temperature ranges
• Withstands high surge stresses and exhibits minimal voltage changes versus current
• Features flexible axial-lead mounting terminals for secure installation
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

• Voltage regulation in industrial electronic circuits
• Protection against secondary lightning effects per IEC standards
• Inductive switching environment protection
• RF induced noise suppression

Procurement Notes

Verify that the ordering suffix TR12 corresponds to the Tape & Reel packaging option as defined by EIA-296 standards. Confirm the specific suffix letter (e.g., B) matches the required voltage tolerance level. Ensure the component meets the necessary moisture classification requirements for your assembly process.

Selection Notes

Select this component when a 120 V regulation point is required with a 5-watt power rating. Consider the T-18 axial lead package for through-hole mounting applications. Evaluate thermal resistance requirements, noting the junction-to-lead value is 25°C/W at a 3/8 inch lead length from the body.

Part Context

This part belongs to the Microsemi 1N5333-5388B series of 5.0 watt silicon Zener diodes. The series offers a wide selection of voltages from 3.3 V to 200 V. Variations in voltage tolerance are identified by specific suffix letters on the part number, such as A for ±10%, B for ±5%, C for ±2%, and D for ±1%.

Replacement Considerations

Surface mount equivalents are available as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B.