Extremely small TVS diodes for highly effective ESD protection

TDK Corporation now offers tiny high-power TVS diodes for ESD protection, increasing its portfolio of components for bidirectional overvoltage protection of I/O interfaces. The space demand of the so-called chip-scale package (CSP) is only 400 x 200µm2 (CSP01005) or 600 x 300µm2 (CSP0201), while the package height of 100µm is also extremely low.

The new TVS diode types are intended for an operating voltage of 5V and a response voltage of 6.8V. The clamping voltages of the two new components are 7.2V at a peak pulse current of 8A or 8V at a peak pulse current of 16A. The devices differ in their parasitic capacitances: Type SD0201SL-GP101 has a capacitance of 12 pF, while the SD01005SL-GP101 type offers a capacitance value of only 5pF. Other features include the short response time and low leakage current of just 2nA at 3.3V.

The protective components are created in accordance with IEC 61000-4-2 for an ESD contact discharge of up to 24kV, exceeding standard requirements. They can withstand a high surge current load of up to 8A according to IEC 61000-4-5 (8/20 µs), despite their small size.

The new TVS diodes are ideal for multiple IoT, smart home, and Industry 4.0 applications. Due to their minimal dimensions, the devices are excellent for wearables, smartphones, tablets, notebooks, smartwatches and hearing aids.