1N4763AP/TR12

Overview

The Microsemi 1N4763AP/TR12 is a silicon Zener diode with a nominal voltage of 91V and a 5% tolerance. It operates in a DO-41 (DO-204AL) plastic axial-lead package, rated for 1.0W power dissipation at 25°C. The device features a maximum dynamic impedance of 5Ω at a test current of 2.8mA and a reverse leakage current of 5μA at 5V. It supports an operating temperature range from -65°C to +150°C and includes a tape-and-reel option indicated by the TR suffix.

Feature Summary

• Provides voltage regulation within a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for standard PCB integration
• Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

• Voltage regulation circuits requiring stable reference voltages
• Overvoltage protection for sensitive electronic components
• Clamping applications in power supply designs

Procurement Notes

Verify that the ordering suffix matches the required configuration. The 'P' indicates plastic encapsulation, while 'TR' specifies tape and reel packaging. Confirm RoHS compliance status if required, as devices are available with an 'e3' suffix for lead-free termination. Ensure the prefix aligns with any specific military screening levels needed for the application.

Selection Notes

Select this component when a 91V Zener voltage with 5% tolerance is required in a plastic axial package. Consider the thermal resistance characteristics and derating curves for high-temperature environments. Evaluate the surge current rating against potential transient events in the circuit design to ensure adequate protection margins.

Part Context

This part belongs to the 1N4728AP through 1N4764AP series of 1-watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series offers extensive voltage selection from 3.3V to 100V. The plastic construction provides lower thermal resistance compared to glass-body options, making it suitable for general-purpose regulation tasks.

Replacement Considerations

Equivalent parts include other manufacturers' 1N4763A variants in DO-41 packages. Verify electrical parameters such as Zener voltage, impedance, and power dissipation match the original specifications before substitution.