SD940-B

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Diode Type:	Schottky
Voltage - DC Reverse (Vr) (Max):	40V
Current - Average Rectified (Io):	9A
Voltage - Forward (Vf) (Max) @ If:	570mV @ 18A
Speed:	Fast Recovery = 200mA (Io)
Current - Reverse Leakage @ Vr:	800µA @ 40V
Capacitance @ Vr, F:	900pF @ 4V, 1MHz
Mounting Type:	Through Hole
Package / Case:	DO-201AD, Axial
Supplier Device Package:	DO-201AD
Operating Temperature - Junction:	-65°C ~ 150°C

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Diodes - Rectifiers - Single - SD940-B Application Field and Working Principle

The SD940-B is a series of single rectifier diodes from Elecrow Office, a reputable China-based electronics and semiconductor manufacturing firm. These diodes are recognized for their outstanding efficiency, providing up to 99.6 percent forward current rectification and featuring easy-and-fast electrical connections. This device has a wide range of applications, including solar devices and power systems, vehicle power supplies and LED illumination devices.In general, the SD940-B is a highly efficient rectifier diode. It utilizes a single diode that has a peak inverse voltage of up to 800V. The device has a forward current of 3A and a total power dissipation of 0.75W. It is epoxy-molded and is RoHS-compliant. Furthermore, the device features a wide operating temperature range of 0℃ to 70℃.The working principle of the SD940-B is based on the electrical current flow and the rectification effect of the diode. In a typical electrical circuit, the current flow from a power source to the various components of the circuit. As the current passes through the diode, the polarity of the voltage which is being measured is rectified, and it becomes a unidirectional DC current.The SD940-B is mainly employed for rectification purposes in electronics and power systems. Its purpose is to convert AC into DC voltage, enabling the other components of the circuit to work at their optimal efficiency. The diode is connected in series with the AC power source, blocking the current flow in the opposite direction. In such a circuit, the device acts as a switch, periodically allowing the current to flow in the positive or negative direction, acting as a rectifier.In vehicle power supplies, the SD940-B is used to efficiently convert AC into DC current. The device is connected in series with the vehicle battery, allowing the rectified current to pass into the battery safely. This feature makes it a viable option in automotive applications, as it can greatly increase the efficiency of the electrical circuitry in the vehicle.In addition, the SD940-B is used in solar devices and power systems, as it provides a reliable source of rectified current. By using this device, the solar energy generated by solar panels can be efficiently stored and transmitted through the electrical circuit. The SD940-B is also used for LED illumination devices, as its efficient rectification ensures a stable and safe operation of the LEDs.In conclusion, the SD940-B is a highly efficient and reliable single rectifier diode. It offers an excellent performance and is suitable for a wide range of applications, such as solar devices, vehicle power supplies and LED illumination devices. The device features a peak inverse voltage of 800V and a forward current of 3A, making it an ideal choice for systems that run on high voltages and currents. The diode utilizes the rectification effect to convert alternating current into direct currrent, thus enabling the other components of the electrical circuit to work at their maximum efficiency.

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