1N4755A-TR

Overview

The Vishay 1N4755A-TR is a silicon planar power Zener diode in the DO-41 (DO-204AL) axial lead package. It provides a nominal Zener voltage of 43 V with a standard tolerance of ±5%. The device supports a maximum power dissipation of 1300 mW and operates within a junction temperature range up to 175 °C. Key electrical parameters include a test current of 6 mA, a reverse leakage current of 5 µA at 32.7 V, and a dynamic resistance of 70 Ω.

Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Designed for high-power stabilization and clipping applications
• Features hermetically sealed glass construction

Applications

• Voltage stabilization circuits
• Signal clipping circuits

Procurement Notes

Verify that the specific ordering code matches the required tape-and-reel configuration. Confirm compliance requirements against the manufacturer's material categorization documentation. Ensure the component meets the thermal equilibrium conditions specified in the datasheet for accurate performance validation during integration.

Selection Notes

Select this component when a 43 V reference point is required in through-hole designs. Evaluate the 1300 mW power rating against expected thermal loads. Consider the 70 Ω dynamic resistance for circuit stability requirements. Verify that the operating environment remains within the specified -65 °C to +175 °C storage and junction limits.

Part Context

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

Replacement Considerations

Direct substitutes within the same Vishay series include parts with identical packaging but different voltage ratings. Cross-manufacturer replacements must match the 43 V nominal voltage, 1 W minimum power dissipation, and DO-41 form factor.