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Product Detailed Parameters
- Description：DIODE SCHOTTKY 35V 120A PRM11
- Series：-
- Mfr：SMC Diode Solutions
- Package：Bulk
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：35 V
- Current - Average Rectified (Io)：120A
- Voltage - Forward (Vf) (Max) @ If：650 mV @ 120 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：10 mA @ 35 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 121NQ035-1 is a high-voltage rectifier diode manufactured by SMC Diode Solutions. It features a non-repetitive peak reverse voltage of 3500V and a repetitive peak reverse voltage of 3500V. The device has a maximum average forward rectified current of 121A at a case temperature of 85°C. It utilizes a planar passivation structure for enhanced reliability. The component is housed in a TO-247AD package, designed for robust thermal performance and mechanical stability in demanding power electronics applications.
Feature Summary
- Planar passivation structure for improved long-term reliability
- High surge current capability for transient protection
- Low forward voltage drop for efficient power conversion
Applications
- Industrial motor drives
- Uninterruptible power supplies (UPS)
- DC to DC converters
Procurement Notes
Verify the specific suffix codes on the datasheet to ensure correct pinout and packaging variations. Confirm thermal resistance values match your heatsink design requirements. Check for any RoHS compliance statements if environmental regulations apply to your assembly process. Ensure the manufacturer's part number matches exactly to avoid compatibility issues with existing circuit designs.
Selection Notes
Select this component when high voltage blocking capability above 3000V is required alongside substantial current handling. Evaluate the thermal management strategy carefully due to the high current rating. Compare forward voltage characteristics against alternative devices to optimize system efficiency. Consider the physical dimensions of the TO-247AD package for PCB layout constraints.
Part Context
This diode belongs to SMC Diode Solutions' high-power rectifier series. These components are engineered for industrial-grade environments requiring high reliability. The series typically includes various voltage ratings to suit different power supply architectures. The 121NQ035-1 represents a specific high-voltage variant within this broader product family.
Replacement Considerations
Consult official cross-reference lists from SMC Diode Solutions or authorized distributors for verified substitutes. Ensure replacement parts maintain identical voltage and current ratings. Verify that thermal and mechanical specifications match the original design constraints before implementation.
