CDBMH250-HF

Overview

The CDBMH250-HF is a Schottky Barrier Rectifier from Comchip Technology's CDBMH series, designed for low-profile surface-mounted applications to optimize board space. It utilizes a silicon epitaxial planar chip with a metal-silicon junction in an SOD-123T package. Key electrical specifications include a maximum repetitive peak reverse voltage of 50 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 supports a forward surge current of 80 A under JEDEC testing conditions. Operating temperatures range from -55°C to +125°C.

Feature Summary

• Ultra high-speed switching characteristics suitable for efficient power conversion
• Low forward voltage drop contributing to reduced power loss and high efficiency
• High surge current capability providing robust protection against overvoltage events
• Lead-free construction meeting environmental standards with excellent thermal resistance

Applications

• Low profile surface mounted applications requiring optimized board space
• General purpose rectification in portable electronic equipment
• Overvoltage protection circuits in consumer electronics

Procurement Notes

Verify the specific part number CDBMH250-HF against official Comchip Technology datasheets to confirm electrical ratings and package dimensions. Ensure compliance with RoHS and lead-free manufacturing standards required by your assembly process. Cross-reference the marking code '25' on the component body to authenticate the unit. Confirm that the SOD-123T package orientation matches your PCB footprint design before finalizing procurement orders.

Selection Notes

Select this component when a 50 V reverse voltage rating and 2.0 A continuous current are required in a compact surface-mount form factor. The SOD-123T package offers a lower profile compared to standard SMA packages, making it ideal for space-constrained designs. Consider the 0.70 V forward voltage drop for efficiency calculations in low-voltage DC-DC converter applications or battery-powered devices where minimizing power dissipation is critical.

Part Context

This component belongs to the Comchip Technology CDBMH series of Schottky Barrier Rectifiers. The series is characterized by batch process design and excellent power dissipation capabilities. These devices are engineered to provide better reverse leakage current performance and thermal resistance compared to standard alternatives. The series includes various voltage ratings from 20 V to 100 V while maintaining a consistent 2.0 A forward current capability across all variants.

Replacement Considerations

Compatible substitutes within the same series include CDBMH240-HF (40 V) and CDBMH260-HF (60 V), provided the voltage margin allows for adjustment. Verify that any replacement maintains the SOD-123T package type and identical pinout configuration to ensure direct interchangeability without PCB redesign.