1N4756CPE3/TR12

Overview

The Microchip Technology 1N4756CPE3/TR12 is a silicon 1.0-watt Zener diode in a plastic DO-41 (DO-204AL) axial package. It provides voltage regulation at a nominal Zener voltage of 47 V with a tight tolerance of ±2%. The device features a maximum dynamic impedance of 80 Ohms and a maximum reverse current of 5 µA. It operates within a temperature range of -65°C to +150°C, includes RoHS compliance via the e3 suffix, and is supplied in tape and reel packaging.

Feature Summary

• Provides precise voltage regulation with a ±2% tolerance for stable reference applications
• Utilizes a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
• Offers flexible axial-lead mounting terminals suitable for through-hole assembly
• Ensures reliability with moisture classification Level 1 requiring no dry pack

Applications

• Voltage regulation circuits requiring stable reference levels
• Protection against overvoltage conditions in electronic systems
• Clipping and clamping applications in signal processing

Procurement Notes

Verify that the specific ordering suffix matches the required tolerance and packaging format. Confirm RoHS compliance status and lead material specifications align with project requirements. Ensure the supplier provides valid traceability documentation for the component batch.

Selection Notes

Select this component when a 47 V regulation point with high precision is required. The plastic construction offers lower thermal resistance compared to glass-body options. Consider the axial lead form factor for standard PCB layouts where surface mount alternatives are not preferred.

Part Context

This part belongs to the JEDEC registered 1N4728A through 1N4764A series of 1.0 watt Zener diodes. The 'C' suffix indicates the tighter ±2% voltage tolerance, while the 'P' designates the plastic encapsulated construction. The 'e3' suffix confirms RoHS compliance with annealed matte-tin plating.

Replacement Considerations

Direct substitutes include other manufacturers' 1N4756C variants or equivalent 47 V Zener diodes with matching power ratings and tolerances. Verify mechanical dimensions and electrical characteristics such as dynamic impedance before substitution.