1N5383A/TR12

Overview

The Microsemi 1N5383A/TR12 is a silicon 5-watt Zener diode with a nominal voltage of 150V and ±10% tolerance. It operates within a temperature range of -65°C to +150°C and features a void-free transfer molded epoxy body meeting UL94V-0 standards. The device includes tin-lead or RoHS compliant annealed matte-tin plating on its axial leads, ensuring solderability per MIL-STD-750 Method 2026. Moisture classification is Level 1 per IPC/JEDEC J-STD-020B, requiring no dry pack.

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 versatile integration
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

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

Procurement Notes

Verify the specific suffix configuration against the datasheet to confirm tolerance and packaging. The TR12 suffix indicates tape and reel packaging per EIA-296 standards. Ensure the required screening level matches project specifications, as military equivalents require distinct prefix identifiers. Confirm RoHS compliance status if environmental regulations apply to the final assembly process.

Selection Notes

Select this component when a 150V Zener diode with 5W power dissipation is required. The A suffix denotes a standard ±10% voltage tolerance. Consider thermal management requirements, as steady-state power dissipation depends on lead length or PCB copper pad area. Verify that the maximum regulator current and surge current ratings exceed the circuit's peak operational demands.

Part Context

This part belongs to the JEDEC registered 1N5333 through 1N5388B series of axial-leaded 5.0 watt Zener diodes. The series offers a wide selection of voltages from 3.3V to 200V. Surface mount equivalents are available in SMBJ and SMBG packages. The series supports various screening levels for military applications by adding specific prefixes to the base part number.

Replacement Considerations

Surface mount equivalents include SMBJ5383A and SMBG5383A. For higher reliability requirements, consider parts with JAN, JANTX, or JANTXV screening prefixes. Verify that any substitute maintains the same 5W power rating and 150V nominal voltage specification.