1PMT5938E3/TR7

Single Zener Diodes Overview

The Microchip Technology 1PMT5938E3/TR7 is a Zener diode housed in the Powermite surface mount package, providing 3.0 watts of power-handling capability. It features a full metallic bottom to eliminate solder flux entrapment and unique locking tabs that act as integral heat sinks. The device operates within a junction temperature range of -55 °C to +150 °C. Electrical characteristics at 30 °C include a nominal Zener voltage of 36 V, a test current of 10.4 mA, dynamic impedance of 38 ohms, knee current of 0.25 mA, maximum reverse leakage current of 1 µA, and a maximum Zener current of 67.7 mA.

Single Zener Diodes Feature Summary

• Surface mount packaging with an integral heat sink locking tab for thermal management
• Full metallic bottom design eliminates the possibility of solder flux entrapment during assembly
• Compatible with automatic insertion equipment for streamlined manufacturing processes

Single Zener Diodes Applications

• Voltage regulation circuits requiring high power dissipation
• Surge protection applications utilizing robust surface mount construction
• Power supply designs benefiting from integrated heat sinking capabilities

Single Zener Diodes Procurement Notes

Verify the specific suffix E3 against official documentation to confirm compliance details and material specifications. Confirm the TR7 tape and reel configuration matches your automated assembly requirements. Cross-reference the manufacturer part number with the latest datasheet revision to ensure accurate electrical parameters and mechanical dimensions are applied to your design.

Single Zener Diodes Selection Notes

Select this component when a 3-watt power rating is required in a compact surface mount form factor. The Powermite package offers distinct advantages over standard packages by incorporating a metallic base and locking tabs for superior thermal performance. Ensure the circuit design accommodates the specified thermal resistance and operating temperature range for reliable operation.

Single Zener Diodes Part Context

This component belongs to the 1PMT5913B through 1PMT5956B series of 3-watt Zener diodes manufactured by Microsemi (now Microchip Technology). The series utilizes the proprietary Powermite package to deliver high power handling in a small footprint. The product line covers a wide range of Zener voltages from 3.3 volts to 200 volts, catering to diverse voltage regulation needs.

Single Zener Diodes Replacement Considerations

Direct replacements within the same series include other 1PMT59xx devices with matching or compatible Zener voltages. Verify that any substitute maintains the 3.0-watt power dissipation rating and the Powermite package mechanical interface to ensure proper mounting and thermal management in the existing design.