1PMT5947/TR13

Single Zener Diodes Overview

The Microchip Technology 1PMT5947/TR13 is a surface-mount Zener diode housed in the Powermite DO-216 package. It provides a nominal Zener voltage of 82 V with a standard tolerance of ±5%. The device operates at a test current of 4.6 mA and features a dynamic impedance of 160 Ohms. It supports a maximum DC power dissipation of 3.0 watts when mounted to Tab 1, with a maximum Zener current of 29.7 mA. The component handles junction temperatures from -55°C to +150°C and includes an integral heat sink locking tab.

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
• High electrostatic discharge rating exceeding 16 kV per human body model

Single Zener Diodes Applications

• Voltage regulation circuits requiring high power density
• Protection against overvoltage transients in industrial systems
• Reference voltage generation in power supply designs

Single Zener Diodes Procurement Notes

Verify that the ordering suffix /TR13 corresponds to the 13-inch tape and reel packaging containing 12,000 pieces as specified in the datasheet. Confirm the manufacturer designation aligns with Microchip Technology or its authorized predecessor entities to ensure authenticity. Check for specific tolerance suffixes if tighter voltage accuracy than the standard ±5% is required for the application.

Single Zener Diodes Selection Notes

Select this component when a 3-watt power handling capability is needed in a compact surface-mount form factor. The DO-216 package offers superior thermal performance compared to smaller packages due to the metallic base and locking tab. Ensure the circuit design accommodates the 82 V breakdown voltage and the associated thermal resistance of 30°C/W from junction to Tab 1.

Single Zener Diodes Part Context

This part belongs to the 1PMT5913B through 1PMT5956B series of 3.0 Watt Zener Diodes. The series utilizes the Powermite surface mount package technology originally developed by Microsemi, now under Microchip Technology. These devices are engineered to replace larger axial leaded components while maintaining equivalent power dissipation ratings in automated manufacturing environments.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other 3-watt surface-mount Zener diodes with 82 V nominal voltage in the DO-216 package. Verify pinout compatibility where Tab 1 serves as the cathode. Cross-reference with Microsemi/Microchip legacy part numbers such as 1PMT5947B for direct functional equivalence.