Vishay expands low input current optocouplers portfolio

Vishay Intertechnology has announced that it is broadening its optoelectronics portfolio with the release of a new series of low input current optocouplers with phototransistor output. The VOM617A and VOM618A series feature low input currents of 1 mA (VOM618A) and 5 mA (VOM617A) in the compact SOP-4 mini-flat package, which saves 30 % PCB space over the DIP-4 package.

The VOM617A and VOM618A series each offer nine different current transfer ratio (CTR) ranges from 40 % to 600 %, which provide designers with increased flexibility. The VOM617A and VOM618A are designed for isolated feedback loops, I/O isolation, and isolation in switchmode power supplies, AC adapters, motor drivers, solar invertors, networking switches, telecom line cards, and home appliances. The optocouplers protect equipment users from electrical shocks and protect the microprocessors within these systems from being damaged by voltage spikes.

The devices, also known as optoisolators, feature a GaAs infrared emitting diode that is optically coupled to a silicon phototransistor. The SOP-4 package provides a 3750VRMS isolation voltage rating and creepage and clearance distance of = 5 mm.

The VOM617A and VOM618A optocouplers are molded using an eco-friendly “green” compound and are RoHS-compliant and in accordance to WEEE 2002/96/EC. They are certified to UL, CSA, VDE, FIMKO, and CQC safety standards.


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