Author: EIS Release Date: Sep 23, 2020
Toshiba has released three tiny photo-relays in a 3.4 x 2.1 x 1.3mm package called P-SON4.
Back-to-back output mosfets means that AC voltage and current switching is possible.
“Each have OFF-state output terminal voltage ratings and ON-state current ratings that are comparable to larger SOP-packaged devices,” according to the company. “Their 7.2mm2 (typ.) mounting area is approximately 74% smaller than 2.54SOP4 and 84% smaller than 2.54SOP6 package types.”
Isolation voltage is all parts is 500Vrms (1minute) and operation is across -40 to 110℃.
Toshiba-photo-relay-TLP3480The ratings above are measured with 5mA (1.2V at 25°C) through the input LED and absolute max is 30mA. 6V reverse input bias is tolerable.
Off-state capacitance ranges from 450 to 170pF depending on device, while isolation resistance is 1014Ω . Turn on is a few milliseconds and turn off under a millisecond – check the data sheets for accurate figures.
Use is foreseen in measuring equipment and instrumentation – with semiconductor testers, probe cards and I/O interface boards.