CDBM120-G

Overview

The CDBM120-G is a Schottky Barrier Rectifier from Comchip Technology's CDBMH series, designed for low-profile surface-mounted applications to optimize board space. It features a Mini-SMA package that is 40% thinner than standard SOD-123 packages. Key electrical parameters include a maximum repetitive reverse voltage (Vrrm) of 20 V and an average forward rectified current (If) of 1 A. The device exhibits a typical forward voltage drop (Vf) of 500 mV at rated current and supports a high surge current capability of 30 A. It operates within a junction temperature range of -65°C to +175°C.

Feature Summary

• Ultra-high-speed switching with low forward voltage drop for high efficiency
• Low profile package design reduces board space requirements by 40%
• Excellent power dissipation offering superior thermal resistance
• Guarding against overvoltage protection with high surge capability

Applications

• Low voltage, high frequency inverters
• Free-wheeling diode circuits
• Polarity protection systems
• DC-DC converters

Procurement Notes

Verify the specific suffix and marking code on the component body to confirm it matches the CDBM120-G designation. Ensure the procurement documentation explicitly states compliance with RoHS standards and lead-free manufacturing processes as defined by the manufacturer. Cross-reference the datasheet revision date to ensure alignment with current environmental regulations and material specifications.

Selection Notes

Select this component when a compact surface-mount solution is required for 20 V, 1 A rectification tasks. The Mini-SMA package is suitable for dense PCB layouts where vertical height is constrained. Consider its thermal performance characteristics if operating in environments requiring efficient heat dissipation without additional heatsinking infrastructure.

Part Context

This part belongs to the CDBMH series of Schottky Barrier Rectifiers manufactured by Comchip Technology. The series utilizes silicon epitaxial planar chip technology with metal-silicon junctions. These devices are engineered for batch process design to ensure consistent quality and performance across production runs.

Replacement Considerations

Direct substitutes must match the 1 A current rating, 20 V reverse voltage, and Mini-SMA (SOD-123FL) package footprint. Verify that alternative components offer comparable forward voltage drops and thermal resistance values to maintain circuit efficiency.