SMLJ24CA-QH Circuit Protection

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TVS (Transient Voltage Suppressor) diodes are designed to protect vulnerable circuits from destructive voltage spikes. The SMLJ24CA-QH is a TVS diode that offers a capacitive and non-linear protection solution, ideal for protecting sensitive equipment against hazardous voltage levels.

The SMLJ24CA-QH diode is a bidirectional transient voltage suppression device that limits the voltage and reduces surge current on the indication side of the protection circuit. It can be used in applications such as telecom equipment, consumer electronics, and automotive electronics. It has a cathode side connected directly to ground and a maximum working voltage of 24V. It offers protection from voltage spikes and currents up to 400W (8 x 20 microseconds waveform) and a surge protection rating of 400W (10/1000 microseconds). The clamping voltage of the diode is 36.9V, and it can withstand an operating temperature range of -55°C to +150°C with a capacitance of 104 pF.

The working principle of the SMLJ24CA-QH diode is simple. If the voltage on the cathode exceeds the diode\'s breakdown voltage, the diode will start to conduct current. This current is limited to a safe level that is below the threshold required to damage sensitive circuits. When the voltage on the anode side exceeds the diode\'s breakdown voltage, the opposite occurs and the diode will block any current from flowing. When the overload voltage is removed, the diode\'s capacitance dissipates the excess voltage and restores the circuit to its original state.

The SMLJ24CA-QH diode is ideal for protecting sensitive components from exposing to hazardous voltage levels due to its low operating voltage, high working current, and surge protection ratings. It works by detecting any voltage spikes that exceed the breakdown voltage and clamping them to safe levels. This makes it suitable for automotive, telecom, and consumer electronic applications where sensitive equipment needs to be protected from voltage surges.

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