1N4732CP/TR12

Overview

The Microsemi Corporation 1N4732CP/TR12 is a silicon 1.0-watt Zener diode in the JEDEC registered 1N4728A to 1N4764A series, housed in a plastic DO-41 (DO-204AL) axial lead package. It provides voltage regulation with a nominal Zener voltage of 4.7 V and a tight tolerance of ±2%, indicated by the 'C' suffix. The device operates within an ambient temperature range of -65°C to +150°C and features flexible mounting terminals. The '/TR12' suffix denotes tape and reel packaging compliant with EIA-296 standards.

Feature Summary

• Provides precise voltage regulation with a standard tolerance of plus or minus 2% for stable circuit performance
• Features flexible axial-lead mounting terminals suitable for through-hole applications
• Encapsulated in void-free transfer molded thermosetting epoxy meeting UL94V-0 flammability ratings
• Moisture classified as Level 1 per IPC/JEDEC J-STD-020B without requiring dry pack storage

Applications

• Voltage regulation over broad operating current and temperature ranges
• High density circuit designs requiring low parasitic characteristics
• Applications necessitating nonsensitive operation to electrostatic discharge

Procurement Notes

Verify that the specific ordering suffix matches the required tolerance and packaging configuration. Confirm the component meets the necessary environmental screening levels if intended for military or high-reliability deployments. Ensure the supplier documentation aligns with the JEDEC registration details provided in the official datasheet.

Selection Notes

Select this component when a 4.7 V reference requires tighter stability than standard 5% tolerances allow. The plastic construction offers lower thermal resistance compared to glass-body options. Consider the tape and reel format for automated assembly processes requiring standardized electronic industry specifications.

Part Context

This part belongs to the popular 1N4728AP through 1N4764AP series of 1.0 watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series covers a wide selection from 3.3 to 100 volts. The 'P' suffix designates the plastic encapsulation, while the 'C' suffix specifies the enhanced 2% voltage tolerance.

Replacement Considerations

Surface mount equivalents are available as SMAJ4732A and MLL4732A. Glass body versions exist under the G suffix designation. Military screening prefixes such as MQ, MX, MV, or MSP may be added for specific reliability requirements.