1N5372/TR12

Overview

The Microchip Technology 1N5372/TR12 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333B through 1N5388B series. It provides voltage regulation at a nominal Zener voltage of 62 V with a standard ±5% tolerance, indicated by the 'B' suffix. The device operates in a T-18 axial leaded package and supports tape and reel packaging via the 'TR' suffix. Electrical characteristics include a maximum dynamic impedance of 42 Ohms, a maximum reverse leakage current of 500 nA, and a test current of 20 mA. It withstands high surge stresses and functions within an operating temperature range of -65°C to +150°C.

Feature Summary

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

Applications

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

Procurement Notes

Verify the specific ordering suffixes against official documentation to confirm package type and compliance status. The 'TR' suffix indicates tape and reel packaging, while the 'B' suffix denotes ±5% voltage tolerance. Confirm RoHS compliance requirements if applicable, as non-compliant variants exist within the series. Ensure heat sinking provisions are adequate for the rated 5.0-watt dissipation during procurement planning.

Selection Notes

Select this component when a 62 V Zener voltage with ±5% tolerance is required for through-hole designs. The T-18 package offers robust mechanical stability for high-power applications. Consider thermal resistance derating curves for ambient temperatures exceeding 25°C. Verify that the 42 Ohm dynamic impedance meets the circuit's noise and regulation specifications.

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 covers a wide voltage selection from 3.3 V to 200 V. These devices are JEDEC registered and designed for high reliability in industrial and commercial environments.

Replacement Considerations

Cross-reference with other manufacturers offering 5W axial Zener diodes at 62V ±5%. Verify pinout compatibility and thermal resistance values. Ensure equivalent surge current ratings and dynamic impedance characteristics match the original design requirements.