1N5372A/TR12

Overview

The Microchip Technology 1N5372A/TR12 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333-5388B series, designed for voltage regulation across broad operating current and temperature ranges. It features a nominal Zener voltage of 62 V with a standard tolerance of ±10%, as indicated by the 'A' suffix. The device operates within a temperature range of -65°C to +150°C and utilizes an axial-lead T-18 package. Electrical characteristics include a maximum reverse leakage current of 0.5 µA at 44.6 V and a maximum dynamic impedance of 42 Ω.

Feature Summary

• Provides stable voltage regulation over a wide operating current and temperature range
• Features flexible axial-lead mounting terminals suitable for through-hole applications
• Withstands high surge stresses and exhibits minimal changes in voltage versus current
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B without requiring dry pack

Applications

• Voltage regulation circuits requiring robust thermal performance
• Power supply protection against high surge stresses
• General-purpose voltage reference applications in industrial environments

Procurement Notes

Verify component authenticity and datasheet revision status prior to integration. Confirm that the specific ordering suffix matches the required tolerance and packaging configuration. Ensure compliance with RoHS directives if applicable to the end-use environment. Validate lead solderability and moisture sensitivity levels according to project specifications before assembly.

Selection Notes

Select this component when a 62 V Zener voltage with ±10% tolerance is required. Consider the 5 W power dissipation capability and thermal resistance characteristics for heat sinking requirements. Evaluate the axial-lead T-18 package dimensions against available board space. Compare dynamic impedance and leakage current specifications against circuit sensitivity needs.

Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi (now Microchip Technology). The series offers a selection of voltages from 3.3 V to 200 V with various tolerance options identified by suffix letters. These devices are JEDEC registered and designed for high reliability in demanding electronic applications.

Replacement Considerations

Direct substitutes within the same series include 1N5372B (±5% tolerance) or 1N5372C (±2% tolerance). Surface mount equivalents such as SMBJ5372B or SMBG5372B are available for different form factor requirements.