1PMT5940C/TR13

Single Zener Diodes Overview

The Microchip Technology 1PMT5940C/TR13 is a surface-mount Zener diode housed in the Powermite DO-216AA package. It provides a nominal Zener voltage of 43 V with a tight ±2% tolerance, indicated by the 'C' suffix. The device handles a maximum power dissipation of 3.0 W and operates within a junction temperature range of -55°C to +150°C. Key electrical characteristics include a test current of 8.7 mA, a dynamic impedance of 8.7 Ohms, and a reverse leakage current of 1 µA at 32.7 V.

Single Zener Diodes Feature Summary

• Surface mount packaging designed for automatic insertion equipment
• Integral heat sink locking tabs eliminate solder flux entrapment
• High electrostatic discharge protection exceeding 16 kV per human body model

Single Zener Diodes Applications

• Voltage regulation in compact electronic circuits
• Overvoltage protection for sensitive components
• Reference voltage generation in power supplies

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against official documentation to confirm tolerance levels and packaging details. Ensure compatibility with automated assembly processes due to the unique mechanical design. Confirm that the thermal management requirements align with the specified junction-to-tab thermal resistance for reliable operation under load.

Single Zener Diodes Selection Notes

Select this component when high power density is required in a small footprint. The tight tolerance makes it suitable for precision applications where standard Zener variations are unacceptable. Consider the metallic bottom construction for effective heat dissipation in densely packed assemblies requiring robust thermal performance.

Single Zener Diodes Part Context

This part belongs to the 1PMT59xx series of 3-watt Zener diodes manufactured by Microchip Technology (formerly Microsemi). The series utilizes the proprietary Powermite package to deliver high power handling capabilities typically found in larger through-hole packages. The product line covers a wide voltage range from 3.3 V to 200 V.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same series include parts with different voltage ratings but identical package and power specifications. Verify that any replacement maintains the required tolerance level and thermal characteristics to ensure circuit integrity without redesigning the mounting pad dimensions.