SD103AW-G3-08

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Diode Type:	Schottky
Voltage - DC Reverse (Vr) (Max):	40V
Current - Average Rectified (Io):	350mA (DC)
Voltage - Forward (Vf) (Max) @ If:	600mV @ 200mA
Speed:	Fast Recovery = 200mA (Io)
Reverse Recovery Time (trr):	10ns
Current - Reverse Leakage @ Vr:	5µA @ 30V
Capacitance @ Vr, F:	50pF @ 0V, 1MHz
Mounting Type:	Surface Mount
Package / Case:	SOD-123
Supplier Device Package:	SOD-123
Operating Temperature - Junction:	-55°C ~ 150°C

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Introduction

The SD103AW-G3-08 is part of a family of single-phase, three-phase and bridge rectifiers, used for a wide variety of Earth leakage applications. It features a low forward voltage drop (VF approx. 0.7V) and fast switching speed. It has a current rating of up to 3A and is available in both a standard Thru-Hole package and surface mount package. The device is an ideal choice for applications where space is limited, such as in solar cells, PoE systems, and automotive electronics.

Basic functions and features

The SD103AW-G3-08 is a high efficiency rectifier, designed to reconvert alternating current (AC) into direct current (DC). It depends upon a semiconductor diode for its operations. It has an anode, cathode, and anode-cathode junction. When an alternating voltage is applied to the anode, current flows from its junction to the cathode. Conversely, when the anode is connected to the cathode, current ceases to exist. The SD103AW-G3-08 offers many advantages, such as a low dropout voltage, fast switching speed, and high efficiency. In addition, the device can operate in both a forward and reverse direction, allowing for both regulated and unregulated DC output. It also features reverse voltage protection, reverse leakage current protection, short circuit protection, and overvoltage protection. The SD103AW-G3-08 operates at a wide range of operating temperature, from -40 to +105 degrees Celsius, ensuring that it can be used in a wide variety of applications. It also features an under-voltage lockout feature protecting against reverse polarity, as well as a low voltage sense-pin for monitoring the Input/Output Voltage. The device also comes in both a standard Thru-Hole package and surface-mount package, suitable for tight-fitting areas.

Common applications

The SD103AW-G3-08 is widely used in many applications, such as motor control, lighting control, energy saving, and home appliances. It can also be used for solar cell designs, since its small size offers advantages for tight-fitting areas. Its low forward voltage drop makes it ideal for PoE systems, as it is able to supply up to 4.95V DC at 1.25A. The device is also used in automotive electronics, such as airbag, ABS, and brake systems, as well as in voltage stabilizers.

Working Principle

The SD103AW-G3-08 works based on a PN-junction diode, where a junction is created between an anode and cathode. When a voltage is applied across this junction, current flows from the anode to the cathode, due to the depletion layer that gets created. In order for the current to flow, the applied voltage must be greater than the threshold voltage. The SD103AW-G3-08 is capable of operating from a range of 4.95V (Vf + 0.7V) to 42V, making it suitable for many applications. When the voltage is removed, the current stops flowing, as the depletion layer blocks the current. This is known as an open circuit. Most diodes can also operate in reverse, where a negative voltage is applied across the junction. In this configuration, current flows in the opposite direction, but at a much lower rate. This is known as reverse biased diode.

Conclusion

The SD103AW-G3-08 is a single-phase, three-phase and bridge rectifier, designed for a wide variety of earth leakage applications. It features low forward voltage drop, fast switching speed, reverse leakage current protection, short circuit protection and overvoltage protection. It can operate from a range of 4.95V (Vf + 0.7V) to 42V, making it suitable for many applications, such as motor control, lighting control, energy-saving, home appliances, solar cell designs, and automotive electronics.

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