CDBAT120-HF

Overview

The CDBAT120-HF is a surface-mount Schottky barrier rectifier manufactured by Comchip Technology. It features an average forward current of 1.0 A and a maximum repetitive peak reverse voltage of 20 V. The device operates within a junction temperature range of -55°C to +125°C and withstands a peak forward surge current of 30 A for 8.3 ms single half sine-wave pulses. Electrical characteristics include a typical reverse peak reverse current of 0.20 mA at maximum rated voltage and a forward voltage ranging from 0.45 V to 0.60 V depending on the forward current level. Thermal resistance values are specified as 88 °C/W junction-to-ambient and 0.02 °C/W junction-to-lead.

Feature Summary

• Low power loss and high efficiency design
• High current capability with low forward voltage drop
• Leadless chip form factor preventing lead damage
• Halogen-free plastic package with UL 94V-0 rating

Applications

• Resistive or inductive load rectification
• PCB mounted applications utilizing copper pad areas
• Surface mount assembly processes

Procurement Notes

Verify the specific part number against official manufacturer documentation to confirm electrical ratings and mechanical dimensions. Ensure compatibility with RoHS and halogen-free requirements if mandated by project specifications. Confirm packaging details such as reel size and tape specifications prior to ordering. Cross-reference thermal resistance parameters with actual board layout conditions for accurate performance assessment.

Selection Notes

Select this component based on the required 1.0 A average forward current and 20 V reverse voltage rating. Consider the operating junction temperature limit of +125°C when designing thermal management solutions. Evaluate the low forward voltage characteristics for efficiency optimization in low-voltage circuits. Verify that the 2010 package dimensions fit the available PCB space and solder mask definitions.

Part Context

This component belongs to the CDBAT series of SMD Schottky Barrier Rectifiers produced by Comchip Technology. The series includes variants with different reverse voltage ratings, specifically up to 100 V. These devices utilize silicon epitaxial planar chips designed for high-speed switching applications. The manufacturing process ensures consistent electrical performance across the product line while maintaining environmental compliance standards.

Replacement Considerations

Compatible substitutes within the same series include CDBAT140-HF, CDBAT160-HF, and CDBAT1100-HF. These alternatives share identical mechanical footprints and general functional characteristics but offer higher reverse voltage capabilities. Ensure that the replacement part's voltage rating exceeds the circuit's maximum operating voltage to maintain reliability.