SMAJ4762CE3/TR13

Single Zener Diodes Overview

The SMAJ4762CE3/TR13 is a 2-watt Zener diode in the DO-214AC (SMA) surface-mount package. It provides a nominal Zener voltage of 82 V with a tight tolerance of ±2%. The device operates within a junction temperature range of -55°C to +150°C and features a maximum steady-state power dissipation of 2.0 W. Electrical characteristics include a test current of 3.0 mA, a maximum dynamic impedance of 200 Ω at the test current, and a maximum reverse leakage current of 5 μA at the test voltage of 62.2 V.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with a ±2% tolerance on the nominal Zener voltage.
• Designed for surface-mount applications utilizing the DO-214AC package geometry.
• Capable of handling high surge currents during transient events.

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels.
• Overvoltage protection in low-power electronic systems.
• Clamping applications in signal conditioning paths.

Single Zener Diodes Procurement Notes

Verify that the specific part number suffix corresponds to the required tolerance level, as standard variants may differ. Confirm tape and reel packaging specifications match automated assembly requirements. Ensure the operating environment remains within the specified thermal limits to maintain performance integrity.

Single Zener Diodes Selection Notes

Select this component when a compact surface-mount solution is needed for an 82 V reference point. The ±2% tolerance makes it suitable for precision applications where standard 10% or 5% tolerances are insufficient. Consider the 2 W power rating and thermal resistance when designing heat dissipation strategies.

Single Zener Diodes Part Context

This component belongs to the SMAJ series of silicon Zener diodes manufactured by Microchip Technology. The series covers a wide voltage range from 3.3 V to 100 V in the DO-214AC package. These devices are electrically equivalent to JEDEC registered 1N47xxA axial leaded diodes but offer a smaller footprint for modern PCB layouts.

Single Zener Diodes Replacement Considerations

Direct replacements include other SMAJ4762 variants with different tolerances if precision is not critical. Equivalent axial parts include the 1N4762A. Verify that any substitute matches the 2 W power rating and DO-214AC package dimensions for proper fit.