1N4735PE3/TR8

Overview

The Microchip Technology 1N4735PE3/TR8 is a silicon 1.0-watt 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 6.2 V and a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +150°C and features a maximum power dissipation of 1.0 watts at 25°C. Electrical characteristics include a test current of 41 mA, a maximum dynamic impedance of 2 Ohms, and a maximum reverse leakage current of 10 µA.

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
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B requiring no dry pack

Applications

• Voltage stabilization circuits
• Signal clipping applications
• Temperature compensated reference designs

Procurement Notes

Verify that the ordering suffix TR8 corresponds to the specific tape and reel packaging configuration required for automated assembly processes. Confirm compliance with RoHS directives via the e3 suffix designation. Ensure the component meets the necessary JEDEC registration standards for the intended industrial or commercial application environment.

Selection Notes

Select this component when a 6.2 V regulated output is required with a 1-watt power handling capability. The plastic DO-41 package offers lower thermal resistance compared to glass-body options. Consider the ±5% voltage tolerance and the specific test current requirements for accurate circuit design and performance prediction.

Part Context

This part belongs to the widely used 1N4728A through 1N4764A series of silicon Zener diodes manufactured by Microsemi's Scottsdale Division. The series covers a voltage selection from 3.3 to 100 volts. The 'P' suffix indicates plastic construction, while the 'e3' suffix denotes RoHS compliant annealed matte-tin plating on the terminals.

Replacement Considerations

Surface mount equivalents are available as SMAJ4735A or MLL4735A. Glass-body versions exist under the G suffix. Military screening levels can be obtained by adding prefixes such as MQ, MX, MV, or MSP to the base part number.