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Product Detailed Parameters
- Description：DIODE SCHOTTK 40V 1A MINI SMA
- Series：-
- Mfr：Comchip Technology
- Package：Tape & Reel (TR)
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：40 V
- Current - Average Rectified (Io)：1A
- Voltage - Forward (Vf) (Max) @ If：500 mV @ 1 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：500 µA @ 40 V
- Capacitance @ Vr, F：120pF @ 4V, 1MHz
- Mounting Type：Surface Mount
- Package / Case：SOD-123T
- Supplier Device Package：Mini SMA/SOD-123
- Operating Temperature - Junction：-50°C ~ 125°C
- Grade：-
- Qualification：-
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Overview
The CDBM140-HF is a Schottky barrier rectifier manufactured by Comchip Technology, designed for surface-mount applications. It features a single diode configuration housed in an SOD-123 package. The device supports a maximum repetitive reverse voltage of 40 V and provides an average forward current rating of 1 A. Key electrical parameters include a forward voltage drop of 0.5 V at 1 A and a peak forward surge current capability of 25 A. The component operates within a junction temperature range of -55°C to +125°C.
Feature Summary
- Utilizes silicon epitaxial planar chip technology with metal-silicon junction construction.
- Provides ultra-high-speed switching characteristics suitable for efficient power conversion.
- Offers high surge current capability to withstand transient electrical loads.
Applications
- General-purpose rectification in low-voltage DC power supplies
- Protection against overvoltage conditions in electronic circuits
- Freewheeling diodes in switching regulator topologies
Procurement Notes
Verify the specific datasheet version corresponding to the CDBM140-HF part number before integration. Confirm that the SOD-123 package dimensions align with the target PCB footprint. Ensure compliance with relevant environmental standards such as RoHS if required by the final assembly specifications.
Selection Notes
Select this component when a compact surface-mount Schottky rectifier is needed for 40 V applications. The 1 A current rating and low forward voltage make it suitable for efficiency-critical designs. Consider the thermal resistance and operating temperature limits relative to the expected ambient conditions and heat dissipation requirements of the host system.
Part Context
This component belongs to the Comchip Technology CDBM series of Schottky barrier rectifiers. The series is characterized by low forward voltage drops and high efficiency. These devices are engineered to replace standard silicon rectifiers in applications requiring faster switching speeds and reduced power loss.
Replacement Considerations
Cross-reference with other SOD-123 packaged Schottky diodes rated for 40 V and 1 A. Verify that substitute parts match the forward voltage and reverse leakage current specifications to ensure circuit performance parity.
