1N4756A-TR

Overview

The Vishay 1N4756A-TR is a silicon planar power Zener diode in the DO-41 (DO-204AL) through-hole package. It provides a nominal Zener voltage of 47 V with a standard tolerance of ± 5 %. The device operates at a test current of 5.5 mA and dissipates up to 1300 mW under thermal equilibrium conditions. Key electrical parameters include a maximum reverse leakage current of 5 μA, a dynamic impedance of 80 Ω at the test current, and a forward voltage of 1.2 V at 200 mA. The component supports a junction temperature up to 175 °C and is supplied on a 14-inch reel.

Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Features double slug type construction with oxide passivated die
• Designed for high-power stabilization and clipping applications

Applications

• Voltage stabilization circuits
• High power rating clipping circuits

Procurement Notes

Verify the specific ordering code suffix against the manufacturer's documentation to confirm packaging details. Confirm that the required units per reel align with production needs. Ensure compliance with material categorization definitions provided by the supplier. Validate environmental specifications prior to integration into final assemblies.

Selection Notes

Select this component when a 47 V reference point is required within a through-hole design. Consider the 1300 mW power dissipation capability relative to ambient temperature derating curves. Evaluate the 80 Ω dynamic impedance for signal integrity requirements in precision regulation tasks.

Part Context

This part belongs to the 1N4728A to 1N4761A series manufactured by Vishay Semiconductors. The series covers a wide range of Zener voltages from 3.3 V to 75 V. All devices share common mechanical characteristics including the DO-41 glass package and metallurgically bonded construction.

Replacement Considerations

Cross-reference with other manufacturers offering the 1N4756A designation. Verify that substitute components match the 47 V nominal voltage, ± 5 % tolerance, and DO-41 footprint dimensions.