Optocoupler provides reliable galvanic isolation

July 30, 2020 //By Nick Flaherty
The coplanar WL-OCPT Series 816 optocoupler family from Würth Elektronik has an insulation voltage of 5kV.
The coplanar WL-OCPT Series 816 optocoupler family from Würth Elektronik has an insulation voltage of 5kV.

Würth Elektronik has launched its first phototransistor optocoupler series.

The coplanar design of the WL-OCPT Series 816 optocoupler family uses an infrared LED on the input side and a phototransistor on the output side. They are characterized by a high insulation voltage of 5 kV and a stable current transfer ratio (CTR) over the entire operating temperature range of -55 to +110°C.

The coplanar structure inside the white housing keeps a fixed distance gap to ensure overvoltage protection and the maximum collector-emitter voltage for this series is 80 V.

The WL-OCPT is available in five different THT and SMT contacting variants each with five CTR binnings each from 50 to 600 percent. Würth Elektronik used a copper lead-frame instead of the usual iron lead-frames to provie more robustness and durability.

The WL-OCPT is suitable for use in power supplies and chargers, computers and microprocessors, electricity meters and many other applications that require signal transmission together with safe galvanic isolation.The WL-OCPT 816 series is certified according to VDE EN60747-5-5:2011 (No. 40051484), UL 1577 (No. E513104) and CQC GB4943.1-2001; GB8898-2011(No. CQC20001244742).

Free samples of the optocouplers with phototransistor output are available now. All 25 products in 816 series are available from stock without a minimum order quantity.

Further information is at  www.we-online.com

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