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Product Detailed Parameters
- Description：DIODE SCHOTTKY 40V 3A DO214AC
- Series：-
- Mfr：Comchip Technology
- Package：Tape & Reel (TR)
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：40 V
- Current - Average Rectified (Io)：3A
- Voltage - Forward (Vf) (Max) @ If：450 mV @ 3 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：500 µA @ 40 V
- Capacitance @ Vr, F：250pF @ 4V, 1MHz
- Mounting Type：Surface Mount
- Package / Case：DO-214AC, SMA
- Supplier Device Package：DO-214AC (SMA)
- Operating Temperature - Junction：-50°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The CDBA340LR-HF is a single silicon Schottky barrier rectifier manufactured by Comchip Technology. It utilizes the DO-214AC (SMA) surface-mount package with two terminals. Key electrical parameters include a maximum repetitive peak reverse voltage of 40 V and an average forward current rating of 3 A. The device exhibits a low maximum forward voltage of 0.45 V and supports a non-repetitive peak forward surge current of 125 A. It operates within a junction temperature range of -50 °C to +150 °C.
Feature Summary
- Low forward voltage characteristic for reduced power loss
- Low reverse leakage current for improved efficiency
- Majority carrier conduction mechanism
- Leadless surface-mount design for compact mounting
Applications
- Efficient DC-DC converter circuits
- Power supply freewheeling diodes
- Reverse polarity protection in electronic systems
Procurement Notes
Verify the specific suffix 'LR' against the official Comchip Technology datasheet to confirm package dimensions and marking codes. Ensure compliance requirements such as RoHS status match project specifications. Cross-reference the JEDEC-95 code DO-214AC with PCB footprint libraries to guarantee mechanical compatibility during procurement and assembly.
Selection Notes
Select this component when a 40 V blocking capability and 3 A continuous current are required in a standard SMA package. The low forward voltage specification makes it suitable for applications prioritizing thermal management and energy efficiency over high-speed switching characteristics typical of other rectifier types.
Part Context
This part belongs to the CDBA series of low VF Schottky Barrier Rectifiers from Comchip Technology. The series focuses on minimizing conduction losses in surface-mount designs. Similar variants exist with different voltage ratings or package styles, but this specific model targets general-purpose rectification needs within the SMA form factor constraints.
Replacement Considerations
Consult official substitution guides for equivalent 40V 3A SMA Schottky diodes. Verify that alternative parts meet the same 125 A surge current and 150 °C operating temperature limits before implementation.
