SMCJ7.5CAHR7G

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TVS (Transient Voltage Suppressors) Diodes are essential components in the protection of electronic circuits against dangerous voltage transients. The SMCJ7.5CAHR7G is a bi-directional, surface mount, low-capacitance, bidirectional TVS device with a built-in protection circuit. It is designed for transient voltage suppression in portable devices and line protection in industrial and telecom applications.

In applications such as computer motherboard and mobile phone circuitry, the SMCJ7.5CAHR7G can be used to protect against voltage transients that otherwise could damage or even destroy sensitive components. It is specially designed to provide superior clamping performance in high-speed data lines that are subject to Electrostatic Discharge (ESD) and other high-current surge situations. In addition, it provides excellent protection against Electro-Magnetic Interference (EMI).

The SMCJ7.5CAHR7G has a breakdown voltage of 7.5V and a capacitance of 0.65pF. This combination makes it suitable for use in a range of circuitry from computer electronics to telecoms. It is rated for an operating temperature of -65°C to +150°C, making it suitable for a wide range of applications. It is available in surface mount packages of TSSOP-7 and DFN-7 types.

The working principle of the SMCJ7.5CAHR7G is based on the Zener breakdown mechanism. When the applied voltage across an Integrated Circuit exceeds its breakdown voltage, or \'avalanche current\' flows to cause the breakdown of the junction. This current is then diverted, or clamped, to a safe level. This safe level is the voltage rating of the TVS diode, which is usually several V lower than the junction breakdown voltage. In the SMCJ7.5CAHR7G, the diverting current is limited to 8A, while its clamping voltages remain 7.5V.

The SMCJ7.5CAHR7G is also capable of handling high current, high-frequency transients. It is designed to be capable of withstanding peak pulse currents ranging from 1 to 8A, depending on the variation, for pulse durations ranging from 10ns to 1ms. The device is also capable of withstanding high-frequency (RF) transients of up to 100MHz.

In summary, the SMCJ7.5CAHR7G is a surface-mount, dual-line TVS diode with a breakdown voltage of 7.5V and a capacitance of 0.65pF. It is suitable for protecting sensitive electronic circuits from harmful transient voltage and current surges, as well as for high-frequency (RF) protection.

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