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Product Detailed Parameters
- Description:DIODE SCHOTTKY 45V 3A SMAF
- Series:-
- Mfr:Diodes Incorporated
- Package:Tape & Reel (TR),Cut Tape (CT)
- Technology:Schottky
- Voltage - DC Reverse (Vr) (Max):45 V
- Current - Average Rectified (Io):3A
- Voltage - Forward (Vf) (Max) @ If:500 mV @ 3 A
- Speed:Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):-
- Current - Reverse Leakage @ Vr:300 µA @ 45 V
- Capacitance @ Vr, F:120pF @ 4V, 1MHz
- Mounting Type:Surface Mount
- Package / Case:DO-221AC, SMA Flat Leads
- Supplier Device Package:SMAF
- Operating Temperature - Junction:-55°C ~ 150°C
- Grade:-
- Qualification:-
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Overview
The B345AF-13 is a single Schottky barrier rectifier manufactured by Diodes Incorporated, housed in the low-profile SMAF surface-mount package. It features a peak repetitive reverse voltage of 45V and an average rectified output current of 3A. The maximum forward voltage drop is 0.50V at 25°C, with a maximum reverse leakage current of 0.30mA at 25°C. Operating junction temperature ranges from -55°C to +150°C.
Feature Summary
- Low forward voltage drop for improved efficiency and cooler operation
- Reduced high-temperature reverse leakage to increase reliability against thermal runaway
- Guard ring die construction for transient protection
- Lead-free finish compliant with RoHS directives
Applications
- Boost diodes
- Blocking diodes
- Recirculating diodes
Procurement Notes
Verify the specific part number B345AF-13 against official Diodes Incorporated documentation to confirm electrical ratings and package type. Ensure compatibility with automated assembly processes due to the SMAF package format. Confirm compliance requirements such as RoHS and halogen-free status if mandated by the end application standards.
Selection Notes
Select this component when a 45V reverse voltage rating and 3A continuous current capacity are required in a compact surface-mount form factor. Consider the SMAF package dimensions for PCB layout constraints. Evaluate thermal management needs based on the specified thermal resistance values and derating curves for ambient temperatures exceeding 25°C.
Part Context
This device belongs to the B340AF/B345AF series of 3.0A Schottky Barrier Rectifiers. It shares the same physical package and general characteristics as the B340AF variant, differing primarily in its higher 45V reverse voltage rating compared to the 40V rating of the B340AF. Both utilize the low-profile SMAF package designed for space-constrained applications.
Replacement Considerations
B340AF-13 (Lower Voltage Rating)
FAQ
What is the maximum operating junction temperature?
The maximum operating junction temperature is +150°C.
Is the device suitable for high-frequency inverters?
Yes, the datasheet indicates suitability for use in low voltage, high frequency inverters.
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