1N4752CPE3/TR8

Overview

The Microchip Technology 1N4752CPE3/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 33V and a tight tolerance of +/- 2%, indicated by the 'C' suffix. The device features RoHS compliance via the 'e3' suffix and tape-and-reel packaging per EIA-296 standards. Maximum ratings include a power dissipation of 1.0 watts at 25°C, an operating temperature range from -65°C to +150°C, and a maximum forward voltage of 1.2 volts at 200 mA.

Feature Summary

• Provides precise voltage regulation with a standard 2% tolerance for stable reference applications
• Features flexible axial-lead mounting terminals suitable for through-hole PCB integration
• Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 flammability standards
• Offers moisture classification Level 1 requiring no dry pack storage

Applications

• Voltage regulation over broad operating current and temperature ranges
• High density circuit designs requiring low parasitic characteristics
• Applications necessitating non-sensitive ESD performance per MIL-STD-750 Method 1020

Procurement Notes

Verify that the ordering suffix matches the required specifications: 'P' indicates plastic construction, 'C' denotes the 2% voltage tolerance, 'e3' confirms RoHS compliance, and 'TR8' specifies the tape and reel packaging format. Confirm the manufacturer source is Microchip or authorized distributor to ensure authenticity of the JEDEC registered part number.

Selection Notes

Select this component when a 33V Zener reference requires tighter than standard 5% accuracy. The plastic DO-41 package offers lower thermal resistance compared to glass-body options. Ensure the application operates within the specified steady-state power limits and does not exceed the maximum surge current ratings during transient events.

Part Context

This part belongs to the 1N4728A through 1N4764A series of 1.0-watt Zener diodes. The series covers a voltage selection from 3.3 to 100 volts. The specific 'C' suffix variant provides tighter tolerances compared to the standard 'A' suffix (5%) or unmarked (10%) versions. Surface mount equivalents are available in SMAJ and MLL packages.

Replacement Considerations

Surface mount equivalents include the MLL4752A series. Other manufacturers may offer compatible parts under the same JEDEC registration numbers, provided they meet the 2% tolerance and 1W power dissipation requirements.