1N4734PE3/TR12

Overview

The Microchip Technology 1N4734PE3/TR12 is a silicon 1.0-watt Zener diode in the JEDEC registered 1N4728A to 1N4764A series, housed in a plastic DO-41 axial lead package. It provides voltage regulation with a nominal Zener voltage of 5.6 V and a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +150°C and features RoHS compliance indicated by the e3 suffix. Packaged in tape and reel format per EIA-296 standards, it offers flexible mounting terminals and void-free transfer molded epoxy construction.

Feature Summary

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

Applications

• Voltage regulation circuits requiring 5.6 V reference
• Power supply protection and clamping applications
• General purpose electronic equipment utilizing axial-lead components

Procurement Notes

Verify the specific ordering suffixes against official manufacturer documentation to confirm exact electrical tolerances, packaging quantities, and material composition. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Ensure compatibility with existing assembly processes regarding axial lead spacing and thermal dissipation constraints.

Selection Notes

Select this component for applications requiring a 5.6 V Zener voltage with ±5% tolerance and 1.0 W power dissipation capability. Consider the plastic DO-41 package for lower thermal resistance compared to glass-body options. Verify that the operating environment stays within the specified -65°C to +150°C temperature range and that surge current ratings are not exceeded during transient events.

Part Context

This part belongs to the widely used 1N4728AP through 1N4764AP series of silicon Zener diodes manufactured by Microsemi's Scottsdale Division. The series covers a voltage selection from 3.3 V to 100 V. The 'e3' suffix denotes RoHS compliant devices with annealed matte-tin plating, while the 'TR' suffix indicates tape and reel packaging. These devices are JEDEC registered and offer various military screening prefixes if required.

Replacement Considerations

Direct replacements include other manufacturers' 1N4734A or 1N4734AP equivalents in the DO-41 package. For RoHS compliance, ensure substitutes carry the appropriate e3 designation. Surface mount alternatives such as SMAJ4734A or MLL4734A are available but require PCB layout modifications.