1PMT5946AE3/TR7

Single Zener Diodes Overview

The Microchip Technology 1PMT5946AE3/TR7 is a Zener diode rated at 75 V nominal voltage. It operates within the Powermite® surface mount package, providing 3.0 W power dissipation capability with the tab connected to 60°C. The device features a full metallic bottom and an integral heat sink locking tab. Electrical characteristics include a test current of 5.0 mA, dynamic impedance of 140 Ω, and reverse leakage current maximum of 1 µA. It supports junction temperatures from -55 °C to +150 °C.

Single Zener Diodes Feature Summary

• Surface mount packaging designed for automatic insertion equipment
• Full metallic bottom eliminates solder flux entrapment during assembly
• Integral heat sink locking tabs provide thermal management
• ESD rating exceeding 16 kV per human body model

Single Zener Diodes Applications

• Voltage regulation in surface mount circuits
• Power handling applications requiring compact form factors
• Automatic insertion manufacturing processes

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against official documentation to confirm tolerance and packaging details. Confirm RoHS compliance status directly with the manufacturer or authorized distributor records. Ensure the procurement channel provides valid traceability for the component lot. Cross-reference the datasheet revision date with the supplied product marking to ensure technical alignment.

Single Zener Diodes Selection Notes

Select this component when a 75 V Zener reference is required in a high-power surface mount configuration. The 3.0 W dissipation rating allows use in applications where standard packages are insufficient. Consider the thermal resistance of 30°C/W when designing the PCB layout. Verify that the operating environment stays within the specified temperature range for reliable performance.

Single Zener Diodes Part Context

This part belongs to the 1PMT59xxB series of Zener diodes manufactured by Microchip Technology (formerly Microsemi). The series utilizes the Powermite® package to deliver higher power capabilities than typical small-signal diodes. The 'E3' suffix typically indicates lead-free composition, while '/TR7' denotes tape and reel packaging containing 3,000 pieces.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same series include parts like 1PMT5945B or 1PMT5947B for slightly different voltage ratings. Verify pinout compatibility and thermal requirements before substitution. Check for updated datasheets as legacy Microsemi products may have transitioned specifications.