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81CNQ040
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Product Detailed Parameters
- Description：DIODE MODULE SCHOTT 40V 40A PRM2
- Series：-
- Mfr：SMC Diode Solutions
- Package：Bulk
- Diode Configuration：1 Pair Common Cathode
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：40 V
- Current - Average Rectified (Io) (per Diode)：40A
- Voltage - Forward (Vf) (Max) @ If：740 mV @ 40 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：5 mA @ 40 V
- Operating Temperature - Junction：-55°C ~ 175°C
- Mounting Type：Chassis Mount
- Package / Case：PRM2
- Supplier Device Package：PRM2
- Grade：-
- Qualification：-
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Overview
The 81CNQ040 is a Schottky diode array manufactured by SMC Diode Solutions, housed in a PRM2-SM through-hole package. It features a dual common cathode configuration with a maximum DC reverse voltage of 40 V and an average rectified current of 80 A per diode. The forward voltage is specified at 740 mV when tested at 80 A. The device supports a junction operating temperature range from -55°C to 175°C and exhibits a fast recovery speed of less than or equal to 500 ns for currents greater than 200 mA.
Feature Summary
- Utilizes Schottky technology for low forward voltage drop and high efficiency.
- Features a dual common cathode configuration within a single module.
- Designed for robust thermal performance with a junction temperature rating up to 175°C.
Applications
- High-frequency power supply circuits
- DC-DC converter modules
- Free-wheeling rectification in inductive loads
Procurement Notes
Verify the specific suffix designation against official manufacturer documentation to confirm exact electrical tolerances and packaging variations. Ensure that the procurement channel provides valid RoHS compliance certificates and original manufacturer traceability records before finalizing acquisition.
Selection Notes
Select this component for applications requiring high current handling capabilities combined with fast switching speeds. The PRM2-SM package facilitates efficient heat dissipation for chassis or board mounting. Confirm that the system's reverse voltage requirements do not exceed the 40 V limit under all transient conditions.
Part Context
This part belongs to the 81CNQ series of power Schottky rectifiers produced by SMC Diode Solutions. The series is engineered for industrial and commercial power conversion systems where reliability and thermal stability are critical. The manufacturer emphasizes rigorous quality control across its discrete semiconductor product lines.
Replacement Considerations
Cross-reference with other 80 A, 40 V Schottky arrays in the PRM2-SM package. Verify pinout compatibility and thermal resistance characteristics before substituting with parts from alternative manufacturers.
