1PGSMA4762

Single Zener Diodes Overview

The Taiwan Semiconductor 1PGSMA4762 is a surface-mount silicon Zener diode designed for voltage regulation and protection applications. It features an 82 V nominal Zener voltage with a 5% tolerance, ensuring precise reference levels in circuit designs. The device operates within a power dissipation rating of 1 W at 75°C case temperature. It utilizes the DO-214AC (SMA) package, measuring 4.6 mm in length, 2.83 mm in width, and 2.5 mm in height. Electrical characteristics include a maximum reverse leakage current of 1 µA and a Zener impedance of 200 Ω at the test current of 3 mA. The component supports an operating temperature range from -55°C to +175°C.

Single Zener Diodes Feature Summary

• High thermal stability with a maximum junction temperature rating of 175°C
• Low leakage current capability for efficient standby operation
• Automotive-grade reliability certified under AEC-Q101 standards

Single Zener Diodes Applications

• Voltage regulation in automotive electronic control units
• Transient voltage suppression in high-reliability industrial circuits
• Reference voltage generation in precision measurement instrumentation

Single Zener Diodes Procurement Notes

Verify the specific suffix 'HR3G' when sourcing, as it denotes the reel packaging format required for automated assembly. Confirm that the procurement order explicitly references the AEC-Q101 qualification status to ensure compliance with automotive-grade specifications. Cross-reference the manufacturer's latest datasheet to confirm the exact pinout orientation and mechanical dimensions before finalizing PCB layout integration.

Single Zener Diodes Selection Notes

Select this component when a robust surface-mount solution is required for high-temperature environments exceeding standard commercial limits. The 1 W power rating allows for effective heat dissipation in compact SMA packages compared to lower-power alternatives. Ensure the application voltage does not exceed the 82 V breakdown threshold to maintain safe operating conditions during steady-state regulation.

Single Zener Diodes Part Context

This part belongs to the 1PGSMA series of surface-mount Zener diodes manufactured by Taiwan Semiconductor. The 'P' designation indicates automotive-grade qualification, distinguishing it from standard commercial variants like the 1SMA series. The series provides a wide range of voltage options within the same physical footprint, facilitating design flexibility across various power management architectures.

Single Zener Diodes Replacement Considerations

The 1SMA4762 serves as a functional substitute but lacks the explicit AEC-Q101 automotive certification found in the 1PGSMA variant. Verify that the replacement meets the required 175°C maximum operating temperature limit if used in high-thermal environments.