1PMT5940AE3/TR13

Single Zener Diodes Overview

The Microchip Technology 1PMT5940AE3/TR13 is a Zener diode housed in the Powermite surface mount package. It provides a nominal Zener voltage of 43 V with a test current of 8.7 mA and a dynamic impedance of 53 Ohms. The device supports a maximum Zener current of 56.1 mA, enabling a DC power dissipation of 3.0 watts when mounted to Tab 1 at 60°C. It operates within a junction temperature range of -55°C to +150°C.

Single Zener Diodes Feature Summary

• Features an integral metallic bottom that eliminates solder flux entrapment during assembly.
• Includes unique locking tabs that act as an integrated heat sink for thermal management.
• Compatible with automatic insertion equipment for streamlined manufacturing processes.

Single Zener Diodes Applications

• Voltage regulation circuits requiring high power handling in compact surface mount form factors.
• Protection against electrostatic discharge events exceeding 16kV per human body model.
• Industrial applications utilizing automatic insertion equipment for component placement.

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix and manufacturer designation carefully, as historical documentation references Microsemi while current branding indicates Microchip Technology. Confirm RoHS compliance status directly with the supplier or official datasheet, as legacy revisions may differ from current production standards. Ensure the procurement channel sources authentic components matching the exact part number configuration.

Single Zener Diodes Selection Notes

Select this component when a 3-watt power rating is required in a surface mount footprint. The design is suitable for environments demanding robust thermal dissipation via the mounting tab. Consider the specific Zener voltage tolerance requirements, noting that standard tolerances are typically ±5% unless specified otherwise by additional suffixes.

Single Zener Diodes Part Context

This device belongs to the 1PMT59xx series of 3-watt Zener diodes manufactured in the Powermite package. The series spans various voltage ratings from 3.3 V to 200 V, sharing identical mechanical dimensions and thermal characteristics. The 1PMT5940 variant specifically targets the 43 V regulation segment within this standardized family.

Single Zener Diodes Replacement Considerations

Direct replacements include other 1PMT5940 variants from different manufacturers offering equivalent 3-watt Powermite specifications. Verify pinout compatibility and thermal resistance values before substitution. Cross-reference with Microchip's comparable part tools for alternative sourcing options.