SA2G-E3/61T

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Diodes are a fundamental component of electronic circuits, and most mini and medium-sized circuits contain at least one. The SA2G-E3/61T is a single rectifier diode with 4-Pin SMA (SMD) package and Maximum Reverse Current of 1A. This diode is the industry standard for use in various power and RF applications.

Application Field

The SA2G-E3/61T diode is a perfect selection for high-power and high-performance applications due to its low forward voltage drop and high thermal and current carrying capabilities. It is mainly used as a reverse blocking rectifier element in AC-DC rectifier circuits and can also be employed in the power systems related applications such as switching power transformers, server power supplies, and RF power amplifier, or in surge and reverse current protection circuits.

Working Principle

A diode is a semiconductor device that conducts current in one direction only. The SA2G-E3/61T diode works on the principle of forward bias, whereby increased current flows through the device when the anode, or positive terminal, is attached to the higher voltage of the two components. The reverse bias, meanwhile, is when the cathode, or negative terminal, is connected to the higher voltage, whereas the opposite is true when the diode is in forward bias. This helps the diode act as a one-way valve for current and voltage, directing current in the proper direction along the specified circuit.

The SA2G-E3/61T also provides a level of protection from accidental breakdown from excessive voltage. It achieves this through limited reverse leakage current by its lower PIV rating and hence prevents components downstream from experiencing high voltage stress. Its high avalanche and reverse voltage capabilities are exceptionally good, making it the go-to choice for high-power applications.

Pinout and Configuration

The SA2G-E3/61T diode has a standardized pinout of 4 pins arranged in a single row. The pins are numbered from left to right as 1, 2, 3, and 4. Pin 1 serves as the anode, while pins 2, 3, and 4 represent the cathode. Pin 4 is labelled as the E3 pin which denotes the maximum current rating of 1A.

Dimensions and Specifications

The SA2G-E3/61T diode has the dimensions of 6.40 x 4.40 x 0.99mm in length, width, and height, respectively. It offers an impressive level of compatibility by its 4-Pin SMA (SMD) package and can fit into almost any printed circuit board. The power dissipation of the pin is 2.5W, while its operating temperature is -55°C to 150°C.

The diode offers maximum forward current of 3A and a maximum reverse current of 1A with its 1A PIV rating. The forward voltage of the diode is 1V and its reverse breakdown voltage is configured as 100V. The capacitance between terminals of the diode is 21pF.

Advantages

The SA2G-E3/61T diode offers several advantages to a circuit from its cost-effectiveness to its high-performance capabilities. Its relatively low forward voltage drop of 1V gives it a higher efficiency power system compared to the usual Schottky diode, making it a better choice for many applications. Additionally, its rugged reliability distinguishes it from its classmates as it can withstand high temperature and reverse voltage stress. In short, it provides a high level of reliability while being cost-effective.

Conclusion

Overall, the SA2G-E3/61T diode is one of the most effective 4-Pin SMA (SMD) rectifier diodes around. Its 1A PIV rating, 1V forward voltage, 100V reverse breakdown voltage, and 2.5W power dissipation are benefits that can be exploited by designers. With its most recognizable feature being its high thermal and current carrying capabilities, it is no wonder that it is used in various power and RF applications.

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