Vishay Intertechnology : Optocouplers in Space-Saving DIP-4 and SMD-4 Packages Offer 800 V Off-State Voltage for High Robustness and Noise Isolation
May 20, 2019 at 10:38 am EDT
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MALVERN, Pa. - May 20, 2019 - Vishay Intertechnology, Inc. (NYSE: VSH) today broadened its optoelectronics portfolio with the release of two new series of optocouplers with phototriac output in space-saving compact DIP-4 and SMD-4 packages. Featuring a high off‑state voltage of 800 V and dV/dt of 1000 V/μs, Vishay Semiconductors' VOT8024A and VOT8121A series deliver high robustness and noise isolation for home appliances and industrial equipment.
The optocouplers announced today isolate low voltage logic from 120 VAC, 240 VAC, and 380 VAC lines to control resistive, inductive, or capacitive loads, including motors, solenoids, high current thyristors, or TRIACs and relays. Reducing design costs and saving board space, the devices consist of a GaAs infrared LED optically coupled to either a zero-crossing TRIAC (VOT8024A series) for EMI reduction without the need for external snubber networks, or a random-phase TRIAC (VOT8121A series) to enable phase-independent switching.
The high off-state voltages of both VOT8024A and VOT8121A series enhance safety margins in one-phase applications, while still maintaining enough voltage headroom for three-phase applications. For additional safety, the optocouplers offer a withstanding isolation voltage of 5000 VRMS. Low trigger currents of 5 mA for the VOT8024A series and 10 mA for the VOT8121A series facilitate an easy interface with digital logic.
Typical applications for the RoHS-compliant optocouplers include power TRIAC drivers in solid-state relays, three-phase air conditioners, boilers, thermostats, industrial motor control, and power line switching, and motor, lamp and valve control in household appliances.
Product options table
Series
Package version
Device number
VOT8024A
(zero crossing)
DIP-4
VOT8024AD
DIP-4, 400 mil
VOT8024AG
SMD-4
VOT8024AB
VOT8121A
(non-zero crossing)
DIP-4
VOT8121AD
DIP-4, 400 mil
VOT8121AG
SMD-4
VOT8121AB
Samples and production quantities of the VOT8024A and VOT8121A are available now, with lead times of six weeks.
Vishay Intertechnology, Inc., a Fortune 1000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors, and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay's product innovations, successful acquisition strategy, and 'one-stop shop' service have made it a global industry leader. Vishay can be found on the Internet at www.vishay.com.
Vishay Intertechnology Inc. published this content on 20 May 2019 and is solely responsible for the information contained herein. Distributed by Public, unedited and unaltered, on 20 May 2019 14:37:05 UTC
Vishay Intertechnology, Inc. (Vishay) is engaged in manufacturing a portfolio of discrete semiconductors and passive electronic components, which supports designs in the automotive, industrial, computing, consumer, telecommunications, military, aerospace, and medical markets. Vishay designs, manufactures, and markets electronic components that cover a range of functions and technologies. Its products include commodity, non-commodity, and custom products. Vishayâs brands include Siliconix, Dale, Draloric, Beyschlag, Sfernice, MCB, UltraSource, Applied Thin-Film Products, IHLP, HiRel Systems, Sprague, Vitramon, Barry, and BCcomponents. Vishayâs semiconductors products include metal oxide semiconductor field-effect transistors (MOSFETs), diodes, and optoelectronic components. The Companyâs semiconductor components are used for a variety of functions, including power control, power conversion, signal switching, signal routing, signal blocking, two-way data transfer, and circuit isolation.
VISHAY INTERTECHNOLOGY, INC. 
