SS19-M3/5AT

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Diodes are electronic components which only allow current flow through them in one direction, and may be used for various applications such as signal rectification, signal level shifters, limiting circuits, battery chargers, and ground loop isolators. The implementation of diodes in single or multiple combinations of components forms an array of circuits known as rectifier circuits, and are usually classified into 2 main ones – a half-wave and a full-wave.

The SS19-M3/5AT single diode rectifier is a miniaturized and SMD packaged diode device from STMicroelectronics, which forms half-wave rectifier circuit when connected with a load, and is built for various applications that require miniaturization, including portables equipment, battery operated products, and other low power systems.

The SS19-M3/5AT is contained in a 4-pin SOD-323 package mounted with a silicon diode, and offers an enhanced thermal resistance, low forward voltage drop of 0.48 V, high surge capability, and extremely low reverse current leakage, with a sufficient operating temperature range of -65°C to +150°C and reverse current of 50 nanoamperes.

The working principle of the SS19-M3/5AT rectifier circuit is based on the electrical and physical aspects of the silicon diode, and the efficiency of it depends on the rectification operation on the applied alternating current. The alternating current supply voltage is connected to the input terminal of the diode, with its anode side, and the output terminal is connected to a load, such as a resistor. At the same time, the cathode side of the diode is also connected to ground.

On the application of a negative polarity at the diode anode, the diode goes in its forward blocking condition, and current does not flow through it. In this blocking state, the diode acts like an electrical insulator to the AC waves, thus blocking the flow of electrons, and no current can pass through the diode. On the application of a positive polarity at the anode side, the internal resistance of the silicon diode is bypassed and the diode just acts as a conductor, thereby allowing the applied AC wave to its output terminal.

In the SS19-M3/5AT single rectifier circuit, a single diode is used which converts the applied Alternating Current (AC) into Direct Current (DC) in the single half-wave. The positive half-sine wave of the AC voltage is rectified and only the positive half is converted into a DC voltage and applied to the output terminal.

The SS19-M3/5AT single rectifier can be used for various applications like for the generation of DC voltage in various low power systems, voltage shifting from one level to another, limiting AC voltage, and for decoupling capacitors. Other than these, the SS19-M3/5AT rectifier can also be used for the protection of electronic circuits from reverse voltage and for AC filters.

In conclusion, the SS19-M3/5AT single rectifier, with its high surge capability, enhanced thermal resistance, extremely low reverse current leakage, and a sufficient operating temperature range, is an ideal single diode rectifier for various miniaturized applications such as portables equipment, battery operated products, and other low power systems.

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