1N4552A

Single Zener Diodes Overview

The Microchip Technology 1N4552A is a high-power 50 W Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 5.1 V with a test current of 2,450 mA and a maximum dynamic impedance of 0.12 Ohms at this current. The device operates within a junction and storage temperature range of -65°C to +175°C. It utilizes a DO-5 (DO-203AB) package with a hexagonal stud mount and offers standard polarity with the anode connected to the case.

Single Zener Diodes Feature Summary

• Hermetically sealed welded construction with internal solder bond
• Inherently radiation hard design
• Low thermal resistance for effective heat dissipation
• ESD nonsensitive per MIL-STD-750 Method 1020

Single Zener Diodes Applications

• High power voltage regulation circuits
• Radiation-hardened electronic systems
• Military and aerospace equipment requiring ruggedized components

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements when ordering. The 'B' suffix indicates a +/- 5% tolerance on the Zener voltage. An 'R' suffix denotes reversed polarity where the cathode connects to the case. Confirm that the application environment supports the specified operating temperature range and mounting hardware specifications provided in the datasheet.

Single Zener Diodes Selection Notes

Select this component for applications requiring robust voltage regulation under high power conditions. Ensure adequate heat sinking is available as the device can dissipate up to 50 watts. Consider the physical dimensions of the DO-5 package and the requirement for a hexagonal stud mount during the mechanical design phase. Verify compatibility with the required voltage tolerance levels.

Single Zener Diodes Part Context

This part belongs to the 1N4549 thru 1N4556B series of 50 Watt Zener diodes manufactured by Microsemi's Scottsdale Division. These devices are JEDEC registered and provide a broad selection of voltages ranging from 3.9 V to 200 V. The series is known for its durability and suitability for demanding industrial and military environments.

Single Zener Diodes Replacement Considerations

Equivalent parts include other 50 W Zener diodes in the DO-5 package with similar voltage and current ratings. Check for matching thermal resistance and polarity configurations. Military qualified versions such as JAN or JANTX prefixes may be available for specific screening requirements.