1N4732A-TR

Overview

The Vishay 1N4732A-TR is a silicon planar power Zener diode designed for voltage stabilization and clipping applications. It features a nominal Zener voltage of 4.7 V with a standard tolerance of ±5 %. The device operates within a test current range of 3.3 to 76 mA, exhibiting a dynamic resistance of 8 Ohms at the specified test current. It supports a maximum power dissipation of 1300 mW and withstands junction temperatures up to 175 °C. Packaged in the DO-41 (DO-204AL) axial through-hole format, it is supplied on a 14-inch reel containing 5000 units per roll.

Feature Summary

• Utilizes silicon planar technology for robust performance in high-power stabilizing and clipping circuits
• Provides precise voltage regulation with a standard Zener voltage tolerance of ±5 %
• Engineered for thermal stability with a maximum junction temperature rating of 175 °C

Applications

• Voltage stabilization circuits
• Signal clipping applications

Procurement Notes

Verify that the ordering code matches the specific suffix required for your packaging needs, as the -TR designation indicates tape-and-reel supply. Confirm compliance requirements against the material categorization definitions provided by Vishay. Ensure lead placement during soldering adheres to the specified thermal conditions to maintain component integrity.

Selection Notes

Select this component when a 4.7 V reference point is required in through-hole designs. Evaluate the 1300 mW power dissipation capability against the expected load currents to ensure operation remains within safe thermal limits. Verify that the 8 Ohm dynamic resistance meets the precision requirements of the target circuit design.

Part Context

This part belongs to the 1N4728A to 1N4761A series of Zener diodes manufactured by Vishay Semiconductors. The series covers a broad spectrum of nominal voltages ranging from 3.3 V to 75 V. All devices in this family share the same DO-41 package and fundamental planar construction, differing primarily in their specific breakdown voltage ratings.

Replacement Considerations

Cross-reference with other manufacturers offering the 1N4732A specification. Verify that substitute components match the 4.7 V nominal voltage, ±5 % tolerance, and 1 W/1.3 W power dissipation ratings. Ensure the replacement package is compatible with the existing DO-41 footprint.