Surge protection device guards systems from high power transients or lightning strikes

The Texas Instruments TVS2700 strongly shunts up to 40A of IEC 61000-4-5 fault current to guard systems from high power transients or lightning strikes. The device provides a solution to the common industrial signal line EMC requirement to survive up to ±1kV IEC 61000-4-5 open circuit voltage coupled through a 42Ohm impedance. The device uses a unique feedback mechanism to assure precise flat clamping during a fault, ensuring system exposure below 35V. The tight voltage regulation enables designers to confidently select system components with a lower voltage tolerance, reducing system costs and complexity without reducing robustness. Also, the device is offered in a small 2mm x 2mm SON footprint which is intended for space constrained applications, offering a 70% reduction in size in comparison to industry standard SMA and SMB packages. The notably low device leakage and capacitance assure a minimal effect on the protected line. To secure robust protection over the lifetime of the product, the company tests the device against 5,000 repetitive surge strikes at high temperature with no shift in device performance.