1N4754APE3/TR12

Overview

The Microchip Technology 1N4754APE3/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 39 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. Electrical characteristics include a maximum dynamic impedance of 60 Ohms at a test current of 6.5 mA, a maximum reverse current of 5 µA at 23 V, and a forward voltage of 1.2 V maximum at 200 mA.

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 1-watt power dissipation
• Temperature compensation networks
• Reference voltage sources in electronic systems

Procurement Notes

Verify that the ordering suffix matches the required specifications. The 'P' suffix indicates plastic construction, while 'e3' confirms RoHS compliance. The 'TR12' suffix denotes tape and reel packaging per EIA-296 standards. Confirm the specific voltage tolerance and electrical parameters against the manufacturer's datasheet before procurement to ensure compatibility with the design requirements.

Selection Notes

Select this component when a 39 V Zener voltage with ±5% tolerance is required in a plastic axial package. Consider the 1.0-watt power dissipation capability and the thermal resistance characteristics for heat management. Ensure the application environment falls within the specified -65°C to +150°C operating temperature range. Verify that the lead length and mounting style align with the PCB layout constraints.

Part Context

This part belongs to the JEDEC registered 1N4728A through 1N4764A series of 1.0-watt Zener diodes manufactured by Microsemi (now Microchip Technology). The series offers an extensive voltage selection from 3.3 to 100 volts. The plastic encapsulated version provides lower thermal resistance compared to glass-body options and is moisture classified as Level 1, requiring no dry pack.

Replacement Considerations

Equivalent parts within the same series include 1N4754A, 1N4754AP, and 1N4754Pe3. Surface mount equivalents are available as SMAJ4754A or MLL4754A. Verify pinout compatibility and thermal performance when substituting.