1N4763APE3/TR12

Overview

The Microsemi Corporation 1N4763APE3/TR12 is a silicon Zener diode in the 1N4728AP through 1N4764AP series, housed in a plastic DO-41 (DO-204AL) axial-lead package. It provides voltage regulation with a nominal Zener voltage of 91 V and a standard tolerance of ±5%. The device dissipates 1.0 W at 25°C and operates within a temperature range of -65°C to +150°C. Electrical characteristics include a test current of 2.8 mA, maximum dynamic impedance of 250 Ohms at IZT, and maximum reverse current of 5 µA at 76.0 V. The component features RoHS compliance via the e3 suffix and tape-and-reel packaging indicated by TR12.

Feature Summary

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

Applications

• Voltage regulation circuits requiring 91 V reference
• Power supply protection and clamping applications
• General-purpose electronic equipment utilizing axial-lead components

Procurement Notes

Verify that the ordering suffix matches the required specifications: 'P' indicates plastic construction, 'e3' confirms RoHS compliance, and 'TR12' denotes tape-and-reel packaging. Confirm manufacturer details as Microsemi or Microchip Technology depending on the specific production lot and acquisition channel. Ensure compatibility with standard axial mounting processes.

Selection Notes

Select this component when a 91 V Zener voltage with ±5% tolerance is required in a plastic axial package. Consider the 1.0 W power dissipation capability and the -65°C to +150°C operating temperature range. The plastic body offers lower thermal resistance compared to glass-body options, making it suitable for applications where moderate heat dissipation is needed without hermetic sealing requirements.

Part Context

This part belongs to the JEDEC registered 1N4728A through 1N4764A series of 1.0 Watt Zener diodes. The series covers a voltage selection from 3.3 to 100 volts. The 'A' suffix specifies the 5% voltage tolerance, while the 'P' suffix designates the plastic encapsulated version. These devices are widely used in general electronics for voltage reference and regulation tasks.

Replacement Considerations

Compatible substitutes within the same series include other 1N4763 variants such as the glass-body 1N4763G or non-RoHS versions like 1N4763AP. Surface mount equivalents in the SMAJ or MLL families may be considered if footprint changes are acceptable.