Based on breakthrough ESD technology, the XGD Series Xtreme-Guard ESD suppressor are available in 0402- and 0603-sized, flat-topped surface mount packages from Littelfuse.
They protect sensitive electronics against ESD as high as 30kV and are suitable for high voltage applications up to 32V DC. They can absorb repetitive ESD strikes nearly four times the maximum level specified in the IEC61000-4-2 international standard without performance degradation, claims the company. Extremely low capacitance makes them suitable for use in high-frequency and high-speed data, video, antenna and I/O circuits.
According to the company, even after multiple ESD strikes, it exhibits low current leakage (less than 1nA), ensuring minimal power losses, for battery-powered electronics, like wearables. Both sizes offer much higher voltage ratings than other ESD suppressors with similar board footprints, claims the company and they offer greater ESD protection than many TVS diodes while providing lower capacitance and leakage current and higher voltage ratings.
Sector News
LED die expands scope for wearable products
The colour choice of dotLEDs from Plessey Semiconductors has been expanded. The selection, includes red, green and blue for the die which has a footprint of 0.2 x 0.2mm, a suitable low profile for wearable devices, says the company.
Multi-function gates can replace multiple devices
Four multi-function gates from Diodes have user-customised logic configurations so that a single part can replace multiple devices. They provide space and weight saving in space-constrained applications such as fitness wearables, smartphones and other portable consumer electronic devices. The power consumption means that they can also be used in consumer products, such as tablets, e-readers, MP3 players, hand-held games and GPS devices.
The 74AUP1G57, 74AUP1G58, 74AUP1G97 and 74AUP1G98 provide various base gate arrangements with three inputs and one output, from which the user can configure the required logic function: AND, OR, NAND, NOR, XOR, XNOR or MUX.
Multiple microcontrollers have core-independent peripherals
Two 8bit families have been added to the PIC MCUs from Microchip. They have core-independent peripherals which can be interconnected to combine and perform functions autonomously, without the core.
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