1PMT5943/TR13

Single Zener Diodes Overview

The Microchip Technology 1PMT5943/TR13 is a surface-mount Zener diode housed in the Powermite DO-216AA package. It provides a nominal Zener voltage of 56 V with a standard tolerance of ±5%. The device operates at a test current of 6.7 mA and features a maximum DC power dissipation of 3.0 W when mounted to Tab 1 at 60°C. Key electrical parameters include a dynamic impedance of 86 Ohms, a reverse leakage current of 1 µA, and a maximum Zener current of 42.9 mA.

Single Zener Diodes Feature Summary

• Surface mount packaging designed for automatic insertion equipment
• Integral heat sink locking tabs for thermal management
• Full metallic bottom eliminates solder flux entrapment during assembly

Single Zener Diodes Applications

• Voltage regulation circuits
• Overvoltage protection systems
• Reference voltage generation

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against official documentation to confirm tape and reel specifications. Confirm that the component meets required RoHS compliance standards for your region. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity and traceability of the Microchip Technology product.

Single Zener Diodes Selection Notes

Select this component for applications requiring high power density in a small surface-mount footprint. The Powermite package offers superior thermal performance compared to standard plastic packages. Consider the tight tolerance availability if precise voltage regulation is critical for the circuit design requirements.

Single Zener Diodes Part Context

This part belongs to the 1PMT59xxB series of 3.0 Watt Zener diodes manufactured by Microchip Technology (formerly Microsemi). The series utilizes the proprietary Powermite surface mount technology, which integrates mechanical locking tabs to serve as heat sinks while preventing flux entrapment during the manufacturing process.

Single Zener Diodes Replacement Considerations

Compatible substitutes within the same series include the 1PMT5942 and 1PMT5944. Verify that replacement parts maintain the same DO-216AA package dimensions and thermal characteristics to ensure proper board fit and heat dissipation.