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1N4532UR
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Product Detailed Parameters
- Description：DIODE STANDARD 50V 125MA DO34
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：50 V
- Current - Average Rectified (Io)：125mA
- Voltage - Forward (Vf) (Max) @ If：1 V @ 10 mA
- Speed：Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr)：30 ns
- Current - Reverse Leakage @ Vr：100 nA @ 50 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：DO-204AG, DO-34, Axial
- Supplier Device Package：DO-34
- Operating Temperature - Junction：-55°C ~ 175°C
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Overview
The Microchip Technology 1N4532UR is a hermetically sealed switching diode housed in a DO-34 glass package. It features a maximum DC reverse voltage of 50V and an operating current of 125mA at 25°C. The device supports an operating temperature range from -55°C to +175°C with a total power dissipation of 500mW. Key electrical characteristics include a maximum capacitance of 2.0pF, a reverse recovery time of 4.0ns, and a forward recovery time of 30ns.
Feature Summary
- Hermetically sealed metallurgically bonded construction
- Double plug design for high reliability
- Copper clad steel leads with tin/lead finish
Applications
- High-reliability computer diode circuits
- Signal processing applications requiring fast switching
- Military and aerospace electronic systems
Procurement Notes
Verify the specific JAN, JANTX, or JANTXV grade required for your application, as these variants are available per MIL-PRF-19500/144. Confirm that the DO-34 outline matches your PCB footprint and lead spacing requirements. Ensure thermal management strategies account for the specified derating factor above 25°C ambient temperature.
Selection Notes
Select this component when hermetic sealing and radiation hardness are critical. The DO-34 case provides robust protection against environmental factors. Consider the 50V reverse voltage rating and 125mA operating current limits to ensure adequate headroom for your circuit design under all expected operating conditions.
Part Context
This part belongs to the 1N4532 series of switching diodes manufactured by Microchip Technology. It is designed to meet the stringent requirements of MIL-PRF-19500/144. The series is characterized by its double plug construction and hermetic seal, making it suitable for demanding environments where standard commercial components may fail.
Replacement Considerations
Direct replacements must match the DO-34 outline and hermetic sealing specifications. Verify that substitute parts meet the same MIL-PRF-19500/144 standards. Ensure compatibility with existing copper clad steel lead materials and tin/lead finishes if those specific attributes are required for the assembly process.
FAQ
What is the maximum reverse recovery time for the 1N4532?
The maximum reverse recovery time (TRR) is 4.0 nanoseconds when tested at IF = IR = 10mA and IRec = 1mA.
How does the operating temperature range affect power dissipation?
The device has a derating factor of 0.883mA/°C above an ambient temperature of +25°C, which reduces the allowable operating current as temperature increases.
