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1N4942/TR
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Product Detailed Parameters
- Description：DIODE STANDARD 200V 1A AXIAL
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：200 V
- Current - Average Rectified (Io)：1A
- Voltage - Forward (Vf) (Max) @ If：1.3 V @ 1 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：150 ns
- Current - Reverse Leakage @ Vr：1 µA @ 200 V
- Capacitance @ Vr, F：45pF @ 12V, 1MHz
- Mounting Type：Through Hole
- Package / Case：A, Axial
- Supplier Device Package：A, Axial
- Operating Temperature - Junction：-65°C ~ 175°C
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Overview
The Microchip Technology 1N4942/TR is a single fast recovery rectifier designed for through-hole mounting in the A-Package-2 axial configuration. It supports a maximum repetitive reverse voltage of 200 V and an average forward current of 1 A. The device exhibits a forward voltage drop of 1.3 V at rated current and maintains a low reverse leakage current of 1 uA. Its fast recovery characteristic is defined by a recovery time of 150 ns, with a maximum surge current capability of 15 A. The component operates reliably within a junction temperature range from -65 C to +175 C.
Feature Summary
- Fast recovery performance suitable for high-speed switching applications
- Extended thermal stability across a wide operating temperature range
- Robust surge current handling capability for transient protection
Applications
- High-frequency power supply rectification circuits
- Free-wheeling diodes in inductive load switching
- General-purpose fast recovery rectification tasks
Procurement Notes
Verify the specific suffix designation against official Microchip documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with MIL-PRF-19500 standards if military-grade qualification is required. Confirm RoHS status as non-compliant based on available data. Validate lead times directly with the manufacturer due to reported long delivery periods.
Selection Notes
Select this component when a 200 V blocking voltage and 1 A continuous current rating are required in an axial through-hole package. The 150 ns recovery time makes it appropriate for frequencies exceeding standard rectifier capabilities. Consider the -65 C to +175 C operating range for harsh environment deployments where standard commercial parts may fail.
Part Context
This part belongs to the 1N494x series of fast recovery rectifiers manufactured by Microchip Technology. It shares the fundamental electrical characteristics with other variants in the series but differs in packaging and specific suffix designations. The 1N4942 variant specifically targets applications requiring 200 V reverse voltage tolerance.
Replacement Considerations
Direct substitutes include JAN1N4942 for military-grade requirements and JANTXV1N4942/TR for enhanced screening levels. Verify pinout and package dimensions match the A-Package-2 specification before substitution.
