RCLAMP1502B.TCT Circuit Protection

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RCLAMP1502B.TCT application field and working principle

The RCLAMP1502B.TCT is a product of the TVS-Diodes category. This ESD protection device combines a bi-directional ESD protection diode, three channels of EMI/RFI filtering capacitor, and two channels of standard low-capacitance ESD protection diode in a single 4-pin SOT-23 package. The RCLAMP1502B.TCT is primarily used in applications to protect USB ports, audio jacks, and other external ports.

Features

• Bidirectional ESD protection diodes
• Three channels of EMI/RFI filtering capacitors
• Two channels of low-capacitance ESD protection diode
• ESD rating of 3kV HBM.
• Protects sensitive components by limiting overvoltage to a maximum survivable level.
• Very low insertion loss, low capacitance, and minimal signal reduction.
• Space-saving 4-pin SOT-23 package.

Applications

• USB ports
• Audio jacks
• Other external ports.

Working Principle

The RCLAMP1502B.TCT provides a low capacitance bi-directional ESD protection diode, which suppresses the surge current caused by ESD, transient, and lightning strikes. The EMI/RFI filtering capacitors help reduce the level of EMI/RFI interference which can lead to errors in the data transfer. The low-capacitance ESD protection diodes help protect the device against ESD and the maximum overvoltage conditions. When an overvoltage situation occurs, the protection diode can help limit the overvoltage to a maximum survivable level to protect sensitive components.

The RCLAMP1502B.TCT is a low-capacitance device which allows for minimal signal degradation when inserted in the signal path. It has an ESD rating of 3kV HBM and operates at a maximum reverse leakage current of 1µA at 25°C. The RCLAMP1502B.TCT is available in a 4-pin SOT-23 package, which allows for space saving designs and low profile board layout.

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