The SP712-02HTG from Littelfuse is a TVS (Transient Voltage Suppressor) Diode Array designed for general purpose ESD (Electrostatic Discharge) protection. It is specifically tailored for applications with asymmetrical working voltages ranging from -7V to 12V. This component is capable of handling repetitive ESD strikes exceeding the maximum level specified by the IEC 61000-4-2 international standard without performance degradation. Additionally, it can safely dissipate up to 20A of 8/20μs induced surge current as per IEC 61000-4-5, maintaining very low clamping voltages.
The SP712-02HTG features low leakage current and is Halogen free, Lead free, and RoHS compliant. It is also AEC-Q101 qualified, making it suitable for automotive applications. The device's low clamping voltage and dynamic resistance ensure efficient protection for sensitive circuits against ESD, EFT (Electrical Fast Transients), and lightning-induced surges.
TVS Diode Arrays
TVS Diode Arrays are semiconductor devices designed to protect electronic circuits from transient voltage spikes. These components work by clamping voltage spikes to a safe level before they can damage sensitive components in the circuit. TVS diodes find applications in a wide range of electronic systems, including communication interfaces, automotive electronics, and industrial control systems.
When selecting a TVS diode, it is important to consider parameters such as peak pulse power, peak pulse current, clamping voltage, and operating temperature range. The working voltage range of the diode should match the circuit's operating conditions. Additionally, the device's response time, dynamic resistance, and capacitance may affect the overall performance in protecting against transient events.
The SP712-02HTG is notable for its asymmetrical working voltage range, making it particularly suitable for applications like RS-485 communication interfaces, which operate with differential signals. Its high ESD withstand voltage and low clamping voltage ensure robust protection for sensitive components against electrical transients.
In summary, when integrating TVS diodes into a design, engineers should evaluate the specific requirements of their application, including the types of transient events anticipated and the characteristics of the circuit being protected. The SP712-02HTG offers a compelling solution for applications requiring reliable protection against a broad range of electrical transients.