The SR05-02CTG by Littelfuse is a TVS (Transient Voltage Suppressor) diode array designed to protect electronic circuits from electrostatic discharge (ESD) and lightning surge events. It consists of four low capacitance steering diodes and a low voltage TVS diode. The device is capable of safely absorbing up to 25A (tp=8/20μs) per channel and repetitive ESD strikes above the maximum level specified in the IEC 61000-4-2 international standard without performance degradation. This makes it particularly suitable for protecting high-speed telecommunication data lines against sudden voltage spikes.
The SR05-02CTG features a low loading capacitance of 6.0pF (typical) per I/O, which is crucial for maintaining signal integrity in high-speed applications. Its low clamp voltage ensures that the protected device is not exposed to voltage levels that could cause damage. Housed in a small SOT143 package, the SR05-02CTG is designed for easy integration into various electronic systems. Additionally, its Moisture Sensitivity Level (MSL-1) indicates that it has a low sensitivity to moisture, enhancing its reliability in diverse environments.
TVS二极管阵列
TVS Diode Arrays are semiconductor devices designed to protect electronic circuits from transient voltage spikes caused by electrostatic discharge (ESD), lightning, and other transient voltage events. These components work by clamping voltage spikes to a safe level that the circuit can withstand without damage. TVS Diode Arrays are widely used in various applications to safeguard sensitive electronics.
When selecting a TVS Diode Array, engineers should consider parameters such as the reverse stand-off voltage, clamping voltage, peak pulse current capability, and capacitance. The reverse stand-off voltage should be higher than the maximum operating voltage of the circuit to prevent the diode from conducting during normal operation. The clamping voltage determines the maximum voltage level that the protected circuit will be exposed to during a transient event. A lower clamping voltage provides better protection but may also increase leakage current. The peak pulse current capability must be sufficient to handle the maximum expected transient current. Capacitance is particularly important in high-speed applications, as higher capacitance can degrade signal integrity.
TVS Diode Arrays are essential components in the design of modern electronic devices, offering protection against potentially damaging voltage transients. Their selection and implementation require careful consideration of the specific requirements of the application, including the nature of the transient threats, the characteristics of the circuit to be protected, and the operating environment.