1SMA16CAT3G

TVS diodes, or transient voltage suppression diodes, are a type of semiconductor diode designed to protect and support circuits and devices from voltage transients caused by external surges or electrostatic discharges (ESD). One such particular device is the 1SMA16CAT3G. It is used in various applications as a surge suppression device.

1SMA16CAT3G Application Field

The 1SMA16CAT3G TVS diode operates over a wide temperature range of -55°C to 175°C, and it can protect any electronic device from voltage transients, making it suitable for telecommunications and networking, automotive, industrial, and consumer applications, as well as many others.

Its small size makes it easy to incorporate into the existing systems, providing protection for sensitive I/O ports with a low working voltage and low clamping voltage. It is ideal for protecting data lines such as USB and Ethernet and is especially suited for high speed signal line coupling.

1SMA16CAT3G Working Principle

The 1SMA16CAT3G TVS diode uses the principle of avalanche multiplication to clamp down the voltage transients. When the voltage on the device\'s anode rises to the peak point of its avalanche breakdown voltage, the device begins to breakdown, allowing current to flow through it. This causes the anode\'s voltage to drop below the device\'s avalanche breakdown voltage, thus clamping the voltage on the device\'s anode to the breakdown voltage.

When the transient voltage fades away, the internal capacitance of the device allows the voltage on the device\'s anode to slowly rise to its normal level. This allows the device to return to its normal, non-conducting state. The 1SMA16CAT3G TVS diode can provide an effective clamping voltage up to 39.7V.