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Product Detailed Parameters
- Description：DIODE SCHOTTKY 40V 3A DO214AC
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Bulk
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：40 V
- Current - Average Rectified (Io)：3A
- Voltage - Forward (Vf) (Max) @ If：490 mV @ 2 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：500 µA @ 40 V
- Capacitance @ Vr, F：-
- Mounting Type：Surface Mount
- Package / Case：DO-214AC, SMA
- Supplier Device Package：DO-214AC (SMA)
- Operating Temperature - Junction：-40°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The Vishay 15MQ040N is a Schottky rectifier in an SMA (DO-214AC) surface-mount package. It features a maximum average forward current of 2.1 A and a repetitive peak reverse voltage of 40 V. The device exhibits a low forward voltage drop, rated at 0.49 V at 2 A and 0.43 V at 2 A with a junction temperature of 125 °C. Maximum reverse leakage current is specified as 0.5 mA at 25 °C and 20 mA at 125 °C. The component supports a peak one-cycle non-repetitive surge current of 330 A and operates within a junction temperature range of -40 to 150 °C.
Feature Summary
- Extremely low forward voltage drop for improved efficiency
- Improved reverse blocking voltage capability relative to other similar size Schottky diodes
- Lead-free construction with halogen-free molding compound
- Designed for high frequency operation
Applications
- Switching power supplies
- Reverse protection for power input to PC board circuits
- Battery isolation and charging
- Free-wheeling or by-pass diode applications
- Low voltage clamp circuits
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm packaging format and compliance status. The datasheet indicates that the TR suffix corresponds to tape and reel packaging containing 7500 pieces, while the absence of this suffix denotes box packaging. Confirm lead-free designation requirements prior to procurement to ensure alignment with environmental standards.
Selection Notes
Select this component for surface-mount designs requiring a compact SMA footprint with a 40 V rating. Ensure the application current does not exceed the 2.1 A average forward current limit under specified thermal conditions. Evaluate thermal resistance characteristics for heat dissipation needs. Verify compatibility with high-frequency switching requirements due to the device's fast recovery characteristics.
Part Context
This component belongs to the 15MQ series of Schottky rectifiers manufactured by Vishay Semiconductors. The series utilizes silicon technology and is housed in the standard SMA surface-mount case style. It is designed for industrial level applications and offers a balance of low forward voltage and high reliability for general-purpose rectification tasks.
Replacement Considerations
Consult official manufacturer substitution lists for verified equivalents. Cross-reference electrical parameters such as forward voltage, reverse voltage, and package dimensions when evaluating alternative components.
FAQ
What is the maximum average forward current rating?
The maximum average forward current is 2.1 A at a 50% duty cycle with a lead temperature of 105 °C.
What is the typical junction capacitance?
The typical junction capacitance is 134 pF at a reverse voltage of 10 VDC and a junction temperature of 25 °C.
How is the device marked?
The device marking consists of two rows: 'IR3F' followed by the year, week of manufacturing, and site ID.
