SMA5J12-E3/61

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TVS (Transient Voltage Suppressors) – Diodes are generally used to protect against over-voltage transients/surges and they form a vital part of most electrical devices. The SMA5J12-E3/61 is a TVS Diode, designed for low capacitance, fast response and low clamping voltage applications. It contains two diodes connected in a reverse parallel configuration.

The SMA5J12-E3/61 is commonly used in a range of applications, including computers, mobile phones, medical equipment, automotive systems, communications systems, consumer electronics, test and measurement equipment and more. It is suitable for protecting data lines from ESD and EFT pulses as well as from over-voltage transients. The device is also able to dissipate very high levels of energy, up to 5A (8/20 µs pulse waveform).

The SMA5J12-E3/61 has a low working voltage of 5V and a breakdown voltage of 12V (for a minimum operating current of 5mA). It also has a low operating capacitance of 9nF, making it suitable for fast response applications. The device features an integrated self-restoring feature, which ensures that it can recover from high surge conditions without having to be replaced.

The SMA5J12-E3/61 is designed so that it can be used in both negative and positive over-voltage protection. The device has a low forward voltage drop of only 0.7V, making it ideal for applications where a low voltage drop is required. Additionally, the device has a low clamping voltage of 8V.

The SMA5J12-E3/61 works on the principle of voltage regulation. When a voltage greater than the breakdown voltage is applied across the device, it absorbs the excess voltage, clamping the voltage at the breakdown voltage and preventing any further increase. The device then dissipates the excess energy and restores the protected circuitry to normal voltage.

The SMA5J12-E3/61 is suitable for a wide range of applications where it can provide reliable protection against over-voltage transients and surges. With its low capacitance, fast response and low clamping voltage, it is an ideal choice for applications such as consumer electronics, automotive systems and communications systems.

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