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Product Detailed Parameters
- Description：DIODE SCHOTTK 40V 1A MINI SMA
- 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：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-G is a Schottky Barrier Rectifier manufactured by Comchip Technology, housed in a Mini SMA (SOD-123) surface-mount package. It features a maximum repetitive peak reverse voltage of 40 V and an average forward rectified current rating of 1 A. The device exhibits a maximum forward voltage drop of 500 mV at the rated current. It operates within a junction temperature range of -55°C to +175°C.
Feature Summary
- Utilizes silicon epitaxial planar chip construction for robust performance.
- Offers low forward voltage drop to minimize power loss and enhance efficiency.
- Provides high surge capability to withstand transient current events.
- Features ultra-fast switching characteristics suitable for high-frequency applications.
Applications
- DC-DC converters
- Power supply circuits
- Reverse polarity protection
Procurement Notes
Verify the specific suffix 'G' corresponds to RoHS compliance requirements for your assembly process. Confirm the SOD-123 footprint dimensions match your PCB design constraints. Ensure the 40V rating provides adequate headroom for your circuit's peak reverse voltage conditions. Check datasheet specifications for thermal derating curves if operating near the maximum junction temperature limit.
Selection Notes
Select this component when a compact surface-mount Schottky diode is required for low-voltage, moderate-current applications. The Mini SMA package offers space savings compared to larger through-hole alternatives. Consider the 500 mV forward voltage drop against standard silicon rectifiers for improved efficiency. Verify that the 1 A current rating meets the continuous load requirements of the target application.
Part Context
This part belongs to Comchip Technology's series of surface-mount Schottky barrier rectifiers. These devices are designed to replace bulkier traditional rectifiers in modern electronics. The Mini SMA package allows for automated placement in high-volume manufacturing environments while maintaining reliable electrical performance.
Replacement Considerations
Cross-reference with other 1A 40V SOD-123 Schottky diodes from manufacturers such as Vishay or Diodes Inc. Ensure pinout compatibility and verify that alternative parts meet or exceed the 500 mV forward voltage specification.
