1N5352A/TR12

Overview

The Microchip Technology 1N5352A/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 T-18 axial lead package with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards. The device provides a nominal Zener voltage of 15 V with a standard tolerance of ±10%, indicated by the 'A' suffix. Electrical characteristics include a test current of 75 mA, a maximum dynamic impedance of 2.5 Ohms at the test current, and a maximum reverse leakage current of 75 µA. The component operates within a temperature range of -65°C to +150°C and withstands high surge stresses.

Feature Summary

• Provides stable voltage regulation over a wide operating current and temperature range
• Features flexible axial-lead mounting terminals for through-hole installation
• Withstands high surge stresses and exhibits minimal voltage change versus current
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B requiring no dry pack

Applications

• Voltage reference circuits in power supplies
• Overvoltage protection stages
• General purpose voltage regulation tasks

Procurement Notes

Verify the specific ordering suffixes against official documentation to confirm compliance requirements and packaging options. The 'TR12' suffix indicates tape and reel packaging per EIA-296 standards. Confirm RoHS status and screening levels if military equivalents are required, as prefixes may alter specifications. Ensure thermal management aligns with the specified derating curves for the intended mounting method.

Selection Notes

Select this component when a 15 V regulation point is required with ±10% tolerance. Consider the 5 W power dissipation capability and the need for adequate heat sinking to maintain performance at high DC currents. Verify that the axial lead form factor fits the mechanical constraints of the target PCB layout. Evaluate the thermal resistance parameters relative to the ambient operating environment.

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 voltage selection from 3.3 V to 200 V with various tolerance options identified by suffix letters. These devices are JEDEC registered and utilize a plastic encapsulated T-18 case style suitable for robust industrial applications.

Replacement Considerations

Consult the manufacturer's datasheet for direct cross-reference data. Surface mount equivalents such as SMBJ5352 or SMBG5352 are available within the same product family.