CDBMH240-HF

Overview

The CDBMH240-HF is a Schottky Barrier Rectifier from Comchip Technology, designed for low-profile surface-mounted applications to optimize board space. It features a silicon epitaxial planar chip with a metal-silicon junction in an SOD-123T package. Key electrical parameters include a maximum repetitive peak reverse voltage of 40 V and a continuous forward current capability of 2.0 A. The device exhibits a maximum forward voltage drop of 0.70 V at 2.0 A and a typical thermal resistance of 35 °C/W. It supports a maximum non-repetitive forward surge current of 80 A under JEDEC conditions.

Feature Summary

• Ultra high-speed switching capability utilizing majority carrier conduction.
• Low power loss and high efficiency due to low forward voltage drop.
• Guardring structure provides overvoltage protection.
• Heat sink bottom design offers excellent power dissipation and thermal resistance.

Applications

• Low profile surface mounted applications requiring optimized board space.
• High frequency rectification circuits.
• Overvoltage protection guarding.

Procurement Notes

Verify the specific part number against official datasheets to confirm electrical ratings and package dimensions. Ensure compliance with environmental standards such as RoHS and MIL-STD requirements before integration. Cross-reference manufacturer documentation for accurate marking codes and taping specifications to prevent assembly errors during surface mount placement.

Selection Notes

Select this component for designs prioritizing high efficiency and compact form factors. The SOD-123T package suits space-constrained layouts. Evaluate thermal management needs based on the specified thermal resistance and operating temperature range. Confirm that the 40 V reverse voltage rating aligns with the circuit's peak inverse voltage requirements.

Part Context

This component belongs to the CDBMH series of SMD Schottky Barrier Rectifiers manufactured by Comchip Technology. The series utilizes batch process design to ensure consistent performance across units. It is part of a broader lineup offering various voltage ratings while maintaining a standardized Mini SMA/SOD-123T footprint for interchangeability in similar application spaces.

Replacement Considerations

Compatible substitutes within the same series include CDBMH220-HF, CDBMH260-HF, CDBMH280-HF, and CDBMH2100-HF. These parts share identical packaging and general characteristics but differ in reverse voltage ratings. Verify voltage compatibility when substituting.