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Product Detailed Parameters
- Description：DIODE SCHOTTKY 40V 1A SOD123F
- Series：-
- Mfr：Comchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：40 V
- Current - Average Rectified (Io)：1A
- Voltage - Forward (Vf) (Max) @ If：520 mV @ 1 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：500 µA @ 40 V
- Capacitance @ Vr, F：60pF @ 4V, 1MHz
- Mounting Type：Surface Mount
- Package / Case：SOD-123F
- Supplier Device Package：SOD-123F
- Operating Temperature - Junction：-50°C ~ 125°C
- Grade：-
- Qualification：-
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Overview
The CDBMS140-HF is a surface-mount Schottky barrier rectifier manufactured by Comchip Technology. It features a 1 A average forward current rating and a 40 V maximum repetitive reverse voltage. The device utilizes a low-profile SOD-123F package, which is 40% thinner than standard SOD-123 components. Key electrical characteristics include a low forward voltage drop of 0.5 V at 1 A and a high surge current capability of 25 A. The component operates within a junction temperature range of -55°C to +125°C.
Feature Summary
- Ultra-high-speed switching with low power loss for improved efficiency
- Low profile package design offering reduced board space requirements
- Guarding against overvoltage protection scenarios
- Lead-free construction compliant with environmental standards
Applications
- DC-DC converters
- Power supplies
- Adapters
- Free-wheeling diodes in circuits
Procurement Notes
Verify the specific suffix 'HF' indicates lead-free compliance when sourcing. Confirm the SOD-123F package dimensions match the target PCB footprint, as this variant differs from standard SOD-123. Ensure the operating environment stays within the specified -55°C to +125°C junction temperature range to maintain reliability. Cross-reference the datasheet for thermal resistance values during high-current applications.
Selection Notes
Select this component for applications requiring compact form factors due to its thin profile. It is suitable for low-voltage, high-efficiency rectification tasks where a 40V reverse voltage rating is sufficient. Consider the 1A current limit and 25A surge capability when designing for transient loads. The Schottky technology makes it ideal for minimizing forward voltage drops compared to standard silicon rectifiers.
Part Context
This part belongs to the CDBMS series of low-profile Schottky barrier rectifiers from Comchip Technology. The series is designed to replace bulkier standard packages while maintaining robust electrical performance. The 'HF' designation typically signifies halogen-free or lead-free manufacturing processes aligned with modern environmental regulations.
Replacement Considerations
Direct substitutes must match the 1A current, 40V reverse voltage, and SOD-123F package. Verify that alternative Schottky diodes offer comparable forward voltage and surge current ratings to ensure circuit compatibility without redesign.
