1KSMBJ56A

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TVS Diodes are a type of diode primarily used to protect electronic circuits from damages resulting from transient over-voltage conditions such as electrostatic discharge, electrical transients, and lightning-induced surges. These diodes protect against over-voltage conditions, but still allow normal circuit operation.

1KSMBJ56A is a popular TVS (Transient Voltage Suppression) diode used to protect electronic systems from damaging electrical transients and over-voltages. It provides reliable protection for sensitive electronic components against high voltage and high energy transients. This diode is a PN junction device with a low capacitance of typically 5 pF in order to protect system data integrity during the transient condition. The diode is configured in a SOD-123 package designed for surface mounting applications.

1KSMBJ56A offers uni-directional protection by diverting transients away from sensitive components to ground. The device has a low operating voltage threshold of 5.6V and an operating voltage of 600W from -55°C to 150°C junction temperature. It also features a breakdown voltage of 6.2V and a clamping voltage of 9.76V maximum. This diode is well suited for protecting USB and other data ports, RTD interfaces, and other controllers such as microprocessors, microcontrollers, and memory components from high energy transients. This device is also able to suppress radio frequency interference (RFI), electromagnetic interference (EMI), and electrostatic discharge (ESD).

1KSMBJ56A has a simple working principle. When placed in parallel with the circuit, it acts as a shunt, or a short. During an over-voltage event, the diode is forward-biased and conducts current in the opposite direction of normal circuit operation. This causes the excess voltage to bypass the sensitive components and be diverted to ground. The device is able to conduct enough current to protect the components, but not enough to cause any damage.

1KSMBJ56A is suitable for a wide range of uses, from automotive and communications systems to consumer electronics and industrial equipment. It is commonly used in USB ports, modems, power strips, and surge protectors. It is an effective way to protect sensitive electronic systems from damage caused by transient over-voltage events.

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