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Product Detailed Parameters
- Description：DIODE SCHOTTKY 40V 500MA 0402C
- Series：-
- Mfr：Comchip Technology
- Package：Tape & Reel (TR)
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：40 V
- Current - Average Rectified (Io)：500mA
- Voltage - Forward (Vf) (Max) @ If：480 mV @ 500 mA
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：40 µA @ 40 V
- Capacitance @ Vr, F：105pF @ 0V, 1MHz
- Mounting Type：Surface Mount
- Package / Case：0402 (1006 Metric)
- Supplier Device Package：0402C/SOD-923F
- Operating Temperature - Junction：-55°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The CDBQC0540L-HF is a surface-mount Schottky barrier rectifier manufactured by Comchip Technology. It features a single diode configuration in an SOD-923F (0402C) package. Key electrical parameters include a maximum repetitive reverse voltage of 40V and an average forward current of 500mA. The device exhibits a typical forward voltage drop of 480mV at 500mA and a maximum reverse leakage current of 6µA. It operates within a temperature range of -55°C to +150°C with a power dissipation rating of 500mW.
Feature Summary
- Ultra-low profile surface mount design optimized for board space constraints
- Soft and fast switching characteristics for high-efficiency performance
- Silicon epitaxial planar chip construction for reliability
Applications
- Low voltage DC-DC converters
- Power supply rectification circuits
- Reverse polarity protection applications
Procurement Notes
Verify the specific suffix 'L' against official datasheets, as it may indicate specific packaging or tape-and-reel configurations distinct from standard variants. Confirm the operating temperature range limits (+150°C vs +125°C) match the intended application environment. Ensure the SOD-923F footprint matches the PCB layout requirements precisely.
Selection Notes
Select this component for applications requiring minimal board area due to its 0402C/SOD-923F form factor. It is suitable for low-voltage systems where the 40V reverse voltage rating provides adequate margin. Consider the 500mA current limit when designing for continuous load conditions to ensure thermal stability within the 500mW dissipation limit.
Part Context
This part belongs to Comchip Technology's CDBQ series of Schottky barrier rectifiers. These devices are designed for general-purpose rectification in portable and space-constrained electronics. The series emphasizes low forward voltage and high surge capability to protect downstream components from transient overvoltages.
Replacement Considerations
Direct substitutes must match the 40V/500mA rating and SOD-923F package. Verify pinout compatibility and thermal resistance characteristics before substitution.
