1N4735APE3/TR8

Overview

The Microchip Technology 1N4735APE3/TR8 is a silicon planar power Zener diode in the 1N4728AP through 1N4764AP series. It provides voltage regulation with a nominal Zener voltage of 6.2 V and a standard tolerance of ±5%. The device operates at a test current of 41 mA and dissipates up to 1.0 W of power. It features a maximum dynamic impedance of 2 Ω and a maximum reverse current of 10 µA. The component utilizes a DO-41 (DO-204AL) plastic axial-lead package, supports an operating temperature range from -65°C to +150°C, and includes RoHS compliance indicated by the e3 suffix.

Feature Summary

• Provides stable voltage regulation across a broad 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
• Includes RoHS compliant devices available with the e3 suffix

Applications

• Voltage regulation circuits requiring 6.2 V reference
• Power supply protection against overvoltage conditions
• General purpose clipping and clamping applications

Procurement Notes

Verify that the ordering suffix TR8 corresponds to the specific tape and reel packaging configuration required for automated assembly processes. Confirm that the e3 suffix indicates RoHS compliance status as defined by the manufacturer's documentation. Ensure the procurement specifications match the JEDEC registered type number requirements for the intended circuit design parameters.

Selection Notes

Select this component when a 6.2 V Zener voltage with 5% tolerance is required for through-hole mounting. Consider the 1.0 W power dissipation capability and the thermal resistance characteristics relative to the PCB copper pad area. Evaluate the maximum reverse current and dynamic impedance specifications against the noise and stability requirements of the target application environment.

Part Context

This part belongs to the popular 1N4728AP through 1N4764AP series of 1.0 watt Zener diodes manufactured by Microsemi, now part of Microchip Technology. The series offers an extensive voltage selection ranging from 3.3 to 100 volts. These plastic encapsulated Zeners are moisture classified as Level 1 and do not require dry pack storage. The series is JEDEC registered and available in various screening levels.

Replacement Considerations

Surface mount equivalents are available as SMAJ4735A or MLL4735A. Consult the factory for other surface mount options or military screening prefixes such as MQ, MX, MV, or MSP.