VOT8024AM and VOT8121AM Optocouplers

Vishay's 800 V off-state voltage delivers high robustness and noise isolation

Image of Vishay Semiconductor - Opto Division's VOT8024AM and VOT8121AM Optocouplers Vishay broadens its optoelectronics portfolio with the release of two optocouplers with a phototriac output in the compact flat SOP-4 package. Featuring high off-state voltage of 800 V and dv/dt of 1000 V/μs, the Vishay Semiconductors VOT8024AM and VOT8121AM deliver high robustness and noise isolation for home appliances and industrial equipment.

These optocouplers 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 a zero crossing TRIAC (VOT8024AM) for EMI reduction without the need for external snubber networks, or a random-phase TRIAC (VOT8121AM) to enable phase-independent switching.

They have low trigger currents, which facilitate an easy interface with digital logic, and high off-state voltage enhances safety margins in one-phase applications, while still maintaining enough voltage headroom for three-phase applications. They also have a high withstanding isolation voltage, which provides additional safety.

Key Specifications
  • Peak off-state voltage: 800 V
  • dv/dt: 1000 V/μs
  • Package: flat SOP-4
  • Isolation voltage: 3750 VRMS
  • Trigger current:
    • VOT8024AM: 5 mA
    • VOT8121AM: 10 mA
Features
  • Compact flat SOP-4 package
  • High off-state voltage of 800 V
  • dv/dt of 1000 V/µs
  • Withstanding isolation voltage of 3750 VRMS
  • Low trigger currents down of 5 mA
  • RoHS compliant
Applications
  • Power TRIAC drivers in solid-state relays
  • Three-phase air conditioners, boilers, and thermostats
  • Industrial motor control and power line switching
  • Motor, lamp, and valve control in household appliances

VOT8024AM and VOT8121AM Optocouplers

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
OPTOCOUPLER PHOTOTRIAC SOP-4VOT8024AM-VTOPTOCOUPLER PHOTOTRIAC SOP-468 - ImmediateView Details
OPTOCOUPLER PHOTOTRIAC SOP-4VOT8121AM-VTOPTOCOUPLER PHOTOTRIAC SOP-468 - ImmediateView Details
Published: 2018-11-13