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Product Detailed Parameters
- Description：DIODE SCHOTTKY 40V 100MA 0402
- Series：-
- Mfr：Comchip Technology
- Package：Tape & Reel (TR)
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：40 V
- Current - Average Rectified (Io)：100mA
- Voltage - Forward (Vf) (Max) @ If：450 mV @ 10 mA
- Speed：Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：1 µA @ 10 V
- Capacitance @ Vr, F：6pF @ 10V, 1MHz
- Mounting Type：Surface Mount
- Package / Case：0402 (1006 Metric)
- Supplier Device Package：0402/SOD-923F
- Operating Temperature - Junction：125°C (Max)
- Grade：-
- Qualification：-
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Overview
The CDBQR0140R-HF is a surface-mount Schottky barrier diode manufactured by Comchip Technology. It features a single rectifier configuration with a maximum repetitive peak reverse voltage of 40V and an average forward current rating of 100mA. The device utilizes silicon technology and is designed for low-voltage, high-frequency applications requiring fast switching characteristics. It operates within a temperature range from -55°C to +125°C junction temperature.
Feature Summary
- Schottky barrier construction for majority carrier conduction
- Surface mount package design for automated assembly
- Low forward voltage drop characteristics
- High reliability silicon planar die structure
Applications
- DC-DC converter output rectification
- Power supply freewheeling diodes
- Reverse polarity protection circuits
- Clamping and demodulation applications
Procurement Notes
Verify the specific suffix 'HF' indicates Halogen-free compliance as per manufacturer standards. Confirm the package outline dimensions against the official datasheet before PCB layout finalization. Ensure the ordering part number matches the exact voltage and current ratings required for the target circuit design.
Selection Notes
Select this component for low-voltage power paths where efficiency and speed are prioritized over high voltage blocking capability. Compare thermal resistance values if operating near maximum current limits. Consider the small form factor benefits for dense board layouts compared to through-hole alternatives.
Part Context
This part belongs to Comchip Technology's SMD Schottky Diode series. It shares functional similarities with other low-current Schottky rectifiers in the CDBQR family. The manufacturer specializes in discrete semiconductors including rectifiers and TVS diodes for industrial and consumer electronics markets.
Replacement Considerations
Check for direct substitutes such as CDBF0140R or CDBUR0140L-HF which share similar 40V/100mA specifications. Verify pinout compatibility and package footprint equivalence before substitution. Review datasheet parameters for any differences in forward voltage or reverse leakage current.
