Hybrid module protects consumer products

The first in a series of bi-directional TVS diode arrays (SPA diodes) designed to protect high-end consumer and wearable electronics has been announced by Littelfuse.

The SP1333-01UTG is the first TVS diode array in the SP1333 series. It has a breakdown voltage 3.3V, and incorporates back-to-back diodes fabricated using a proprietary silicon avalanche technology. This back-to-back configuration provides symmetrical data line protection from ESDs up to ±30kV, says Littelfuse to safely absorb repetitive ESD strikes without performance degradation.

Low clamping voltages allow the SP1333 series to tolerate surges above 5A, for extended operating life for consumer electronics devices, such as smartphones, portable medical devices, portable navigation devices, small size panels, tablets and

point of sale terminals.

The SP1333 series of TVS diode arrays are provided in compact 0201 packages. Littelfuse believes it simplifies the designer’s job by eliminating the need to source devices for this breakdown voltage from another vendor.

Characteristics of the TVS diode arrays are a low capacitance (just 10pF per I/O) which helps preserve signal integrity and minimise data losses. They also have low parasitic leakage of less than 50nA, to extend operating life.

Finally, says Littelfuse, a combination of high surge tolerance and ±30kV ESD protection provides robust protection against electrical threats.

The SP1333 series TVS diode arrays are available in a surface-mount 0201DFN package in tape and reel format. Samples can be requested through authorised Littelfuse distributors worldwide.


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