1N4752CP/TR12

Overview

The Microchip Technology 1N4752CP/TR12 is a silicon 1.0-watt Zener diode 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 operates within a temperature range of -65°C to +150°C and features a maximum dynamic impedance of 45 ohms at a test current of 7.5 mA. It includes a tape and reel option for automated assembly.

Feature Summary

• Provides precise voltage regulation with a standard ±2% tolerance on nominal Zener voltage
• Features flexible axial-lead mounting terminals suitable 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 regulation over broad operating current and temperature ranges
• Reference voltage sources in electronic circuits
• Protection against voltage transients in power supply lines

Procurement Notes

Verify that the ordering suffix matches the required specifications. The 'P' indicates plastic construction, while 'C' confirms the 2% voltage tolerance. Ensure the 'TR' suffix aligns with tape and reel packaging requirements. Confirm RoHS compliance status if lead-free terminals are necessary for the specific application environment.

Selection Notes

Select this component when a 33V reference with high precision is required. The plastic package offers lower thermal resistance compared to glass-body options. Consider the ±2% tolerance for applications demanding tighter voltage stability than standard 5% or 10% variants. Verify thermal derating requirements based on the specific ambient temperature and mounting conditions.

Part Context

This part belongs to the JEDEC registered 1N4728A through 1N4764A series of 1.0-watt Zener diodes. The series covers an extensive voltage selection from 3.3 to 100 volts. The 'CP' designation specifically identifies the plastic encapsulated version with a 2% tolerance, distinguishing it from glass-body or standard tolerance counterparts within the same family.

Replacement Considerations

Surface mount equivalents are available as SMAJ4752A or MLL4752A. For glass-body replacements, consult the separate datasheet for G-suffix options. Military screening levels can be obtained by adding MQ, MX, MV, or MSP prefixes to the base part number.