1PMT5922/TR7

Single Zener Diodes Overview

The Microsemi Corporation 1PMT5922/TR7 is a single Zener diode housed in the Powermite DO-216AA surface-mount package. It provides a nominal Zener voltage of 7.5 V with a standard tolerance of ±5%. The device supports a maximum DC power dissipation of 3.0 W when mounted to TAB 1 at 60°C, with a maximum Zener current of 330 mA. Electrical characteristics include a dynamic impedance of 3.0 Ohms and a reverse leakage current of 5 µA at 6.0 V. The component operates within a junction temperature range of -55°C to +150°C.

Single Zener Diodes Feature Summary

• Features an integral heat sink locking tab that acts as a thermal conductor for efficient heat dissipation.
• Incorporates a full metallic bottom design to eliminate solder flux entrapment during assembly processes.
• Provides high electrostatic discharge protection rated above 16 kV per the human body model.
• Compatible with automatic insertion equipment due to its innovative surface mount packaging.

Single Zener Diodes Applications

• Voltage regulation circuits requiring compact surface-mount solutions
• Power supply protection against transient overvoltage events
• Reference voltage generation in electronic systems

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix to confirm the tape and reel packaging format. Confirm RoHS compliance status as older Microsemi variants may not meet current environmental directives. Ensure the procurement documentation references the correct JEDEC DO-216AA footprint dimensions for PCB layout compatibility.

Single Zener Diodes Selection Notes

Select this component when a 7.5 V regulation point is required in a space-constrained surface-mount application. Evaluate the 3.0 W power handling capability against the expected thermal load. Consider the tight tolerance availability if stricter voltage accuracy is needed beyond the standard ±5% specification.

Single Zener Diodes Part Context

This part belongs to the 1PMT5913B through 1PMT5956B series of 3.0 Watt Zener diodes manufactured by Microsemi. These devices utilize the proprietary Powermite package to deliver high power density in a small form factor. The series covers a wide voltage range from 3.3 Volts to 200 Volts.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering equivalent DO-216AA packages and 7.5 V Zener specifications. Verify that any substitute component matches the 3.0 W power dissipation rating and thermal resistance characteristics to ensure reliable operation.

Single Zener Diodes FAQ

How is the cathode terminal identified on the 1PMT5922/TR7?

The cathode is designated by TAB 1, which also serves as the mounting pad and heat sink interface.

What is the thermal resistance of the device?

The thermal resistance from the junction to TAB 1 is specified as 30°C/W.