Low input current optocouplers in SOP-4 mini-flat package offer space saving benefits

September 24, 2012 // By Paul Buckley
Vishay Intertechnology, Inc., has broadened the company's 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 new VOM617A and VOM618A series offers 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 released today, also known as opto-isolators, feature a GaAs infrared emitting diode, which is optically coupled to a silicon phototransistor. The SOP-4 package provides a 3750 VRMS 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.

Availability

Samples and production quantities of the new optocouplers are available now, with standard lead times of four to six weeks.

Visit Vishay Intertechnology at www.vishay.com