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81CNQ040SL
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Product Detailed Parameters
- Description：DIODE ARR SCHOTT 40V 40A PRM2-SL
- 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：Surface Mount
- Package / Case：PRM2-SL
- Supplier Device Package：PRM2-SL
- Grade：-
- Qualification：-
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Overview
The 81CNQ040SL is a Schottky diode array manufactured by SMC Diode Solutions, designed for surface-mount applications. It features a common cathode configuration within the PRM3-SL package. The device supports a maximum repetitive peak reverse voltage of 40 V and an average rectified current of 40 A per diode. Key electrical characteristics include a forward voltage of 930 mV at 40 A and a reverse leakage current of 2 mA at 40 V. It operates reliably across a junction temperature range of -55°C to 175°C.
Feature Summary
- Schottky technology ensures low forward voltage drop and minimal power loss during conduction.
- Common cathode dual-diode arrangement simplifies circuit design for synchronous rectification or polarity protection.
- Surface-mount PRM3-SL package facilitates automated assembly and compact board layout.
Applications
- DC-DC converter output rectification
- Polarity protection circuits
- Free-wheeling diodes in switching power supplies
Procurement Notes
Verify the specific suffix SL against official datasheets to confirm package dimensions and pinout compatibility. Ensure the selected variant meets RoHS3 compliance requirements for your manufacturing process. Cross-reference thermal resistance values with your heatsinking strategy to maintain junction temperatures within safe operating limits during high-current operation.
Selection Notes
Select this component when a 40 A current rating and 40 V blocking voltage are required in a surface-mount form factor. The common cathode configuration is suitable for applications needing two independent rectifying paths sharing a ground reference. Consider the PRM3-SL package size constraints relative to available PCB real estate and thermal dissipation needs.
Part Context
This part belongs to the 81CNQ series of Schottky diode arrays from SMC Diode Solutions. The series offers various voltage ratings and current capacities tailored for high-efficiency power conversion. The 81CNQ040SL specifically addresses mid-power applications requiring robust surface-mount solutions with high thermal stability.
Replacement Considerations
Consult official substitution lists for equivalent parts with matching current, voltage, and package specifications. Verify that any alternative maintains the same common cathode configuration and thermal performance characteristics.
