Miniature TVS diodes save space for bi-directional over-voltage protection

TVS diodes released by TDK extend the company’s portfolio of components for bidirectional overvoltage protection of I/O interfaces.

The CSP01005 and CSP0201 offer ESD protection but save space due the chip scale package (CSP) measuring just 400 x 200 micron2 (CSP01005) or 600 x 300 micron2 (CSP0201). The package height is just 100 micron.

The TVS diodes are designed for an operating voltage of 5.0V and a response voltage of 6.8V. The clamping voltages of the two new components are 7.2V at a peak pulse current of 8.0A or 8.0V at a peak pulse current of 16A.

The TVS diodes differ in their parasitic capacitances. There is the SD0201SL-GP101 (ordering code B74121G0050M060) which has a capacitance of 12 pF, and the SD01005SL-GP101 type (B74111G0050M060) which has a capacitance value of just 5.0 pF. Other features include a short response time and low leakage current of just 2.0nA at 3.3V.

The protective components are designed in accordance with IEC 61000-4-2 for an ESD contact discharge of up to 24kV. This figure exceeds standard requirements. Despite their size, the diodes can withstand a high surge current load of up to 8.0A according to IEC 61000-4-5 (8/20 µs).

The SD0201SL-GP101 and SD01005SL-GP101 TVS diodes can be used in a variety of applications in industry, smart homes and the IoT.

The small dimensions mean they are also suitable to protect wearables, smartphones, notebooks, tablets, smart watches or hearing aids.

TDK was established in 1935 to commercialise ferrite, a key material in electronic and magnetic products. Today, TDK’s comprehensive portfolio features passive components such as ceramic, aluminium electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. The company also supplies sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors. It also provides power supplies and energy devices and magnetic heads. Products are marketed under the product brands TDK, Epcos, InvenSense, Micronas, Tronics and TDK-Lambda.

TDK focuses on demanding markets in automotive, industrial and consumer electronics, and information and communication technology. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America.

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