1N4735APE3/TR12

Overview

The Microchip Technology 1N4735APE3/TR12 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 dynamic impedance of 2 Ohms at a test current of 41 mA. RoHS compliance is indicated by the e3 suffix, while the TR12 suffix denotes tape and reel packaging.

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 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 6.2 V reference
• Power supply protection and clamping applications
• General-purpose electronic equipment utilizing axial-lead components

Procurement Notes

Verify that the specific part number includes the required suffixes for your manufacturing needs. The 'e3' suffix confirms RoHS compliance, while 'TR12' indicates tape and reel packaging. Confirm that the manufacturer designation aligns with current corporate structures following industry acquisitions, as datasheets may retain legacy branding. Ensure compatibility with your assembly processes regarding lead plating and moisture sensitivity levels.

Selection Notes

Select this component when a 6.2 V Zener voltage with ±5% tolerance is required in a 1-watt power dissipation class. The plastic DO-41 package offers lower thermal resistance compared to glass-body options. Consider the maximum reverse current and dynamic impedance specifications for precision requirements. Verify that the operating temperature range of -65°C to +150°C meets environmental conditions.

Part Context

This device belongs to the widely used 1N4728A through 1N4764A series of silicon Zener diodes. The series covers a voltage selection from 3.3 V to 100 V. The 'P' suffix designates the plastic encapsulated construction, which provides improved thermal characteristics over glass variants. The 'A' suffix specifies the standard 5% voltage tolerance, distinguishing it from tighter tolerance options like 'C' or 'D'.

Replacement Considerations

Surface mount equivalents are available as SMAJ4735A or MLL4735A. Other manufacturers produce JEDEC registered 1N4735A devices with identical electrical characteristics. Verify pinout polarity and package dimensions when substituting with non-Microsemi sources.