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AK 04
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Product Detailed Parameters
- Description：DIODE SCHOTTKY 40V 1A AXIAL
- Series：-
- Mfr：Sanken Electric USA Inc.
- Package：Bulk
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：40 V
- Current - Average Rectified (Io)：1A
- Voltage - Forward (Vf) (Max) @ If：550 mV @ 1 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：5 mA @ 40 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：Axial
- Supplier Device Package：Axial
- Operating Temperature - Junction：-40°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The AK04 is a Schottky diode manufactured by Sanken Electric USA Inc. It features a peak repetitive reverse voltage (VRSM) of 40 V and an average forward current (IF(AV)) rating of 1.0 A. The device exhibits a typical forward voltage drop (VF) of 0.49 V at 1.0 A, with a maximum of 0.55 V. Reverse leakage current (IR) is limited to 5 mA at VRM, increasing to 35 mA at a junction temperature of 150 °C. Thermal resistance from junction to lead (Rth(J-L)) is 22 °C/W. The component operates within a junction temperature range of -40 °C to 150 °C and utilizes an axial package.
Feature Summary
- Schottky barrier construction enables low forward voltage drop for improved power supply efficiency
- Capable of high-frequency switching applications due to fast recovery characteristics
- Lead-free bare leads compliant with RoHS standards
Applications
- DC-DC Converters
- Adapters
Procurement Notes
Verify the specific datasheet revision before procurement, as product information is subject to change without notice. Confirm that the application environment complies with general purpose electronic equipment standards. For applications requiring higher reliability or safety-critical functions, contact a Sanken sales representative to discuss suitability and obtain necessary documentation signatures prior to use.
Selection Notes
Select this component for circuits requiring a 40 V blocking capability and up to 1.0 A continuous forward current. Ensure the operating junction temperature remains within the specified -40 °C to 150 °C range. Consider the thermal resistance of 22 °C/W when designing heat dissipation paths. Verify compliance with local environmental regulations regarding controlled substances before integration into final products.
Part Context
The AK04 belongs to the discrete semiconductor product category, specifically Schottky diodes produced by Sanken Electric USA Inc. This series is designed to enhance system performance through reduced voltage drops and efficient high-frequency operation. The manufacturer provides these components for use in general-purpose electronic apparatuses, supporting various power conversion architectures.
Replacement Considerations
The datasheet explicitly marks the AK04 as 'Not Recommended for New Designs.' Engineers should evaluate alternative components for new projects. No official substitute part numbers are provided in the source material.
FAQ
What is the maximum surge forward current rating?
The AK04 has a surge forward current (IFSM) rating of 25 A for a half-cycle sine wave on the positive side lasting 10 ms for one shot.
How does reverse leakage current behave at elevated temperatures?
At a junction temperature of 150 °C, the reverse leakage current under high temperature (H·IR) can reach a maximum of 35 mA when the reverse voltage equals the repetitive reverse voltage.
