Littelfuse has introduced the SMF series 200 W transient voltage suppression (TVS) diode, designed specifically to protect sensitive electronic equipment from voltage transients induced by lighting or other transient voltage events.
The packaging of the diode allows designers to optimise the use of circuit board space in surface mounted applications because its footprint is just half the size of SMA packages. With a maximum height profile of just 1,1 mm and compact width and length dimensions, the SMF series is suitable to use in compact design. It is compatible with the industry-standard SOD-123 plastic package.
Because of its compact size and 200 W peak pulse power surge capability at10x1000 μs waveform, the SMF TVS diode is an excellent choice for the protection of I/O interfaces, VCC bus and other vulnerable circuits used in hard disk drives, portable devices, business machines, cellular phones, and many other industrial and consumer applications.
The SMF Series provides excellent voltage clamping capability and a stand-off voltage range from 5 V to 12 V. It also offers a very fast response time, typically less than 1 ns from 0 V to the minimum breakdown voltage. It complies with important industry standards, including IEC 61000-4-2 level 4 (electrostatic discharge immunity) and IEC 61000-4-4 (EFT protection of data lines).
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