1N5383B/TR12

Overview

The Microsemi 1N5383B/TR12 is a silicon Zener diode with a nominal voltage of 150V and a tolerance of ±5%. It features a maximum power dissipation of 5.0 watts at 25°C, a test current of 8.0 mA, and a maximum dynamic impedance of 330 ohms. The device operates within a temperature range of -65°C to +150°C and utilizes an axial-lead T-18 package. The TR12 suffix indicates tape and reel packaging compliant with EIA-296 standards.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and offers minimal voltage change versus current
• Features flexible axial-lead mounting terminals for versatile integration

Applications

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

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging format and compliance status. Ensure the component matches the required JEDEC registration series and thermal characteristics for the intended application environment.

Selection Notes

Select this component based on the required 150V breakdown voltage and 5-watt power handling capability. Consider the ±5% tolerance and thermal resistance specifications when designing heat sinking solutions for steady-state operation.

Part Context

This part belongs to the 1N5333B through 1N5388B JEDEC registered series of 5-watt Zener diodes. The series covers voltages from 3.3V to 200V with various tolerance options defined by suffix letters.

Replacement Considerations

Equivalent parts include other 1N5383 variants with matching electrical ratings. Verify lead plating and moisture sensitivity levels when substituting.