1N4761P/TR12

Overview

The Microsemi Corporation 1N4761P/TR12 is a silicon 1.0-watt Zener diode with a nominal voltage of 75 V and a standard tolerance of ±10%. It operates within a temperature range of -65°C to +150°C and features a DO-41 (DO-204AL) plastic axial-lead package. The device provides voltage regulation over a broad operating current and temperature range, with a maximum dynamic impedance of 175 Ohms at a test current of 3.3 mA.

Feature Summary

• Provides stable voltage regulation across a wide operating current and temperature range
• Features flexible axial-lead mounting terminals for through-hole applications
• Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
• Moisture classified as Level 1 per IPC/JEDEC J-STD-020B requiring no dry pack

Applications

• Voltage regulation in electronic circuits
• Power supply protection and reference applications
• General-purpose discrete semiconductor components

Procurement Notes

Verify the specific manufacturer and lot details upon ordering, as production status may vary. Confirm that the TR suffix indicates tape and reel packaging compliant with EIA-296 standards. Ensure compatibility with RoHS requirements if applicable, noting that RoHS-compliant versions utilize an e3 suffix. Validate all electrical parameters against the official datasheet before integration.

Selection Notes

Select this component when a 75 V Zener voltage with ±10% tolerance is required in a 1 W power rating. The P suffix designates plastic construction, offering lower thermal resistance compared to glass-body options. Consider the DO-41 package for standard axial-lead mounting. Verify thermal derating curves if operating near maximum power dissipation limits.

Part Context

This part belongs to the 1N4728AP through 1N4764AP series of silicon 1-watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series offers extensive voltage selection from 3.3 to 100 volts. The 1N4761 variant specifically targets the 75 V regulation segment within this standardized JEDEC registered lineup.

Replacement Considerations

Surface mount equivalents are available as SMAJ4761A or MLL4761A. Other manufacturers producing JEDEC registered 1N4761 devices may serve as functional substitutes if electrical characteristics match.