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Product Detailed Parameters
- Description：DIODE SCHOTTKY 40V 5A DO214AC
- Series：-
- Mfr：Comchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：40 V
- Current - Average Rectified (Io)：5A
- Voltage - Forward (Vf) (Max) @ If：550 mV @ 5 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：500 µA @ 40 V
- Capacitance @ Vr, F：380pF @ 4V, 1MHz
- Mounting Type：Surface Mount
- Package / Case：DO-214AC, SMA
- Supplier Device Package：DO-214AC (SMA)
- Operating Temperature - Junction：-50°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The CDBA540-HF is a Schottky barrier rectifier manufactured by Comchip Technology in the DO-214AC (SMA) surface-mount package. It features a maximum repetitive peak reverse voltage of 40 V and an average forward rectified current of 5.0 A at 25°C. The device exhibits a maximum instantaneous forward voltage of 0.55 V at 5.0 A and a maximum reverse leakage current of 0.5 mA. It supports a forward surge current of 125 A under JEDEC conditions and operates within a junction temperature range of -50 to +175 °C.
Feature Summary
- Ultra high-speed switching capability for efficient power conversion
- Guard ring structure designed for overvoltage protection
- Silicon epitaxial planar chip with metal silicon junction technology
Applications
- Low profile surface mount applications requiring optimized board space
- High efficiency switched mode power supplies
- Freewheeling diode circuits in DC-to-DC converters
Procurement Notes
Verify component authenticity through official manufacturer channels or authorized distributors. Confirm that the received parts match the specific marking code SK54 and package type DO-214AC. Ensure storage and handling procedures comply with moisture sensitivity levels and electrostatic discharge precautions defined in the datasheet to maintain performance integrity.
Selection Notes
Select this component when a 40 V reverse voltage rating and 5.0 A continuous forward current are required in a compact SMA footprint. Consider its low forward voltage drop for improved efficiency in low-voltage rectification applications. Evaluate thermal management requirements based on the specified junction-to-ambient thermal resistance and derating curves for ambient temperatures exceeding 25°C.
Part Context
This part belongs to the CDBA series of SMD Schottky Barrier Rectifiers from Comchip Technology, which covers reverse voltages from 40 V to 200 V. All devices in this series share the same DO-214AC package and 5.0 A forward current capability, differing primarily in their breakdown voltage ratings and corresponding forward voltage characteristics.
Replacement Considerations
Direct substitutes include other SMA-packaged Schottky rectifiers with matching 40 V and 5 A ratings, such as the SK54 marking equivalent. Verify that alternative components meet the same forward voltage, reverse leakage, and thermal performance specifications before implementation.
FAQ
What is the marking code for the CDBA540-HF?
The part is marked with the code SK54 on the top surface.
What is the maximum operating junction temperature?
The maximum operating junction temperature is +175 °C.
