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TVS - Diodes

TVS (Transient Voltage Suppressors) - diodes are semiconductor devices that help protect a circuit against voltage transients caused by electrical overstress (EOS) such as those caused by lightning and electrostatic discharges (ESD). TVS diodes are used to protect a variety of circuits from such threats.

The SMAJ150CA-M3/61 is a Glass Passivated Junction Transient Voltage Suppressor diode. This device is designed to protect voltage sensitive components from high voltage, high energy transients. The diode consists of a single-disc ceramic body, encased in an epoxy resin, with a glass passivating seal over the body. It is designed to operate from -55°C to +150°C.

Application Field

The SMAJ150CA-M3/61 can be used to protect a variety of sensitive electronics from transients and ESD. This device can protect components from voltage transients up to 150V peak, and 500V DC. It is ideal for use in automotive and aviation electronics, where transient protection is required. The diode is also suitable for various consumer products, such as laptop and cell phone chargers.

Working Principle

The SMAJ150CA-M3/61 consists of a diode with a ceramic body, and a metal package housing for the diode. When a transient voltage is applied to the diode, the ceramic body of the diode absorbs the energy, and limits the current flow through the diode. This current limiting effect helps to protect electrical components from damage caused by voltage transients and ESD.

The SMAJ150CA-M3/61 is designed to be paired with a transient voltage clamp (TVC) for additional protection. The TVC is designed to absorb the energy from the transient and dissipate it safely. When used in conjunction with the SMAJ150CA-M3/61, the TVC helps to ensure that the voltage transients are kept at safe levels.

Conclusion

The SMAJ150CA-M3/61 is an ideal device for protecting sensitive electronics from high voltage transients and ESD. Its relatively low cost and reliable performance make it an attractive choice for a variety of applications. Its wide operating temperature range and compatibility with TVCs make it an ideal choice for automotive and aviation applications, as well as consumer products.

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