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Product Detailed Parameters
- Description：DIODE SCHOTTKY 40V 1A 0402C
- Series：-
- Mfr：Comchip Technology
- Package：Tape & Reel (TR)
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：40 V
- Current - Average Rectified (Io)：1A
- Voltage - Forward (Vf) (Max) @ If：560 mV @ 1 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：40 µA @ 40 V
- Capacitance @ Vr, F：125pF @ 0V, 1MHz
- Mounting Type：Surface Mount
- Package / Case：0402 (1006 Metric)
- Supplier Device Package：0402C/SOD-923F
- Operating Temperature - Junction：-55°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The CDBQC140L-HF is a single Schottky barrier diode manufactured by Comchip Technology, designed for surface-mount applications. It features a compact SOD-923F (0402) package and utilizes silicon epitaxial planar chip technology. The device supports a maximum repetitive reverse voltage of 40 V and an average forward current of 1 A. Key electrical specifications include a maximum forward voltage of 500 mV at 1 A, a peak forward surge current capability of 9 A, and a low reverse leakage current of 40 µA. It operates within a temperature range of -55°C to +150°C junction temperature.
Feature Summary
- Ultra-low profile SOD-923F package suitable for space-constrained designs
- High thermal resistance and excellent power dissipation characteristics
- Ultra-fast switching speed with minimal recovery time
- Guarding against overvoltage transients due to low reverse leakage
Applications
- Automotive electronics systems requiring high reliability
- DC-DC converters and power supply rectification
- Free-wheeling diodes in inductive load circuits
- Reverse polarity protection in portable devices
Procurement Notes
Verify the specific suffix 'HF' indicates lead-free compliance with RoHS standards. Confirm the package marking '14L' matches design requirements. Ensure ESD handling protocols are followed during assembly. Cross-reference datasheet revisions for any parameter updates before finalizing procurement orders.
Selection Notes
Select this component when a 1 A Schottky diode is required in an ultra-small footprint. The 40 V rating suits low-voltage DC bus applications. Compare forward voltage drop against efficiency needs. Consider thermal management capabilities relative to ambient operating conditions and PCB copper area availability.
Part Context
This part belongs to Comchip's automotive-grade Schottky diode lineup, emphasizing reliability in harsh environments. The CDBQC series focuses on miniaturization without sacrificing current handling. It complements larger packages like SOD-123 or DO-214AB where space permits higher current ratings.
Replacement Considerations
Check pinout compatibility with existing footprints. Verify that substitute parts meet the same 40 V and 1 A ratings. Ensure equivalent forward voltage and reverse leakage specifications to maintain circuit performance.
