1N4763CP/TR12

Overview

The Microsemi 1N4763CP/TR12 is a silicon 1-watt Zener diode in the 1N4728AP-1N4764AP series, housed in a plastic DO-41 (DO-204AL) axial-lead package. It provides voltage regulation at a nominal Zener voltage of 82 V with a ±2% tolerance, 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 5 Ω at a test current of 3.0 mA. It includes RoHS-compliant annealed matte-tin plating ('e3') and tape-and-reel packaging ('TR12').

Feature Summary

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

Applications

• Voltage regulation circuits requiring stable reference levels.
• Overvoltage protection in electronic systems.
• Clamping applications for transient suppression.

Procurement Notes

Verify that the part number matches the specific tolerance and packaging requirements. The 'C' suffix confirms the 2% voltage tolerance, while 'TR12' indicates tape-and-reel packaging. Confirm RoHS compliance via the 'e3' suffix if required. Ensure the supplier provides documentation confirming the JEDEC registration and electrical characteristics as specified in the datasheet.

Selection Notes

Select this component when a 82 V Zener voltage with tight ±2% tolerance is required in a 1-watt power dissipation class. The plastic DO-41 package offers lower thermal resistance compared to glass-body options. Consider the operating temperature range and thermal derating curves for high-temperature environments. Verify compatibility with surface mount equivalents if space constraints exist.

Part Context

This component belongs to the popular 1N4728A through 1N4764A series of 1.0-watt Zener diodes. The series covers a wide voltage selection from 3.3 to 100 volts. The plastic encapsulated version provides improved thermal performance over glass-body variants. Microsemi offers various screening levels and suffixes to customize tolerance and packaging for specific design needs.

Replacement Considerations

Surface mount equivalents such as SMAJ4762A or MLL4762A are available. Consult the factory for other surface mount options. Ensure replacement parts match the voltage, tolerance, and power dissipation ratings. Verify package compatibility and lead configuration differences between axial and SMD versions.