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Product Detailed Parameters
- Description：DIODE SCHOTTKY 40V 120A PRM11
- Series：-
- Mfr：SMC Diode Solutions
- Package：Bulk
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：40 V
- Current - Average Rectified (Io)：120A
- Voltage - Forward (Vf) (Max) @ If：610 mV @ 120 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：10 mA @ 40 V
- Capacitance @ Vr, F：5200pF @ 5V, 1MHz
- Mounting Type：Chassis Mount
- Package / Case：HALF-PAK
- Supplier Device Package：PRM1-1 (Half Pak Module)
- Operating Temperature - Junction：-55°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The 120NQ040R-1 is a single Schottky diode from SMC Diode Solutions, housed in the PRM1-1 (Half Pak Module) chassis mount package. It features a maximum repetitive peak reverse voltage of 40 V and an average forward rectified current rating of 120 A. The device exhibits a typical forward voltage drop of 0.65 V at rated current and can withstand a non-repetitive peak forward surge current of 1860 A. It operates within a junction temperature range of -55°C to 150°C.
Feature Summary
- Utilizes Schottky barrier technology for low forward voltage drop and high efficiency
- Designed with a rugged chassis mount PRM1-1 package for robust thermal management
- Capable of handling high surge currents suitable for demanding power applications
Applications
- DC-DC converters
- Free-wheeling rectification in motor drives
- Power supply output stages
Procurement Notes
Verify the specific suffix 'R-1' against official SMC Diode Solutions documentation to confirm tape-and-reel packaging or specific revision status. Ensure the chassis mount interface matches the intended heatsink design. Confirm that the 40V rating aligns with the system's peak reverse voltage requirements under all operating conditions.
Selection Notes
Select this component when a low-loss, high-current Schottky solution is required in a chassis-mount form factor. The 120A continuous current rating supports high-power density designs. Consider the 0.65V forward voltage for thermal calculations. Verify compatibility with the PRM1-1 mounting footprint and ensure adequate airflow or heatsinking to maintain junction temperatures within the specified 150°C limit.
Part Context
This part belongs to the 120NQ series of Schottky rectifiers from SMC Diode Solutions. The series offers various voltage ratings including 30V, 40V, and 45V options, all sharing the same 120A current capability and PRM1-1 package style. These modules are engineered for industrial and commercial power conversion systems requiring reliable high-current rectification.
Replacement Considerations
The 120NQ040-1 is a related variant within the same base product line. Verify if the 'R-1' suffix denotes a specific packaging difference such as reel configuration rather than electrical changes. Cross-reference pinout and thermal characteristics with any alternative manufacturers offering equivalent PRM1-1 packages.
