1N4737A-TAP

Overview

The Vishay 1N4737A-TAP is a silicon planar power Zener diode in the DO-41 (DO-204AL) through-hole package. It provides a nominal Zener voltage of 7.5 V with a standard tolerance of ±5 %. The device operates at a test current of 34 mA and dissipates up to 1.3 W. Electrical characteristics include a maximum reverse leakage current of 10 μA, a dynamic impedance of 4 Ω, and a surge current rating of 121 mA. It supports junction temperatures up to 175 °C.

Feature Summary

• Silicon planar construction for high-power stabilization and clipping applications
• Hermetically sealed glass package ensuring reliable operation
• Standardized ±5 % voltage tolerance across the series

Applications

• Voltage stabilization circuits
• Signal clipping applications

Procurement Notes

Verify the specific manufacturer datasheet revision and electrical tolerances against your design requirements. Confirm that the TAP suffix corresponds to the Ammo Pack packaging format containing 5000 units per pack. Ensure lead soldering conditions comply with the specified thermal limits to maintain component integrity during assembly.

Selection Notes

Select this component when a stable 7.5 V reference is required in through-hole designs. The 1.3 W power dissipation capability allows for robust performance in moderate current environments. Verify that the 4 Ω dynamic impedance meets the regulation precision needed for the target circuit topology.

Part Context

This part belongs to the Vishay 1N4728A to 1N4761A series of 1-watt Zener diodes. The series covers a wide voltage range from 3.3 V to 75 V, all utilizing the same DO-41 glass package. This standardization simplifies inventory management for designs requiring various voltage levels within the same physical footprint.

Replacement Considerations

Other manufacturers producing JEDEC-standard 1N4737A devices are electrically compatible. Ensure replacement parts match the 7.5 V nominal voltage, 1.3 W power rating, and DO-41 package dimensions.