Acton Technology

Your Reliable Partner


Photo Coupler – High Speed 5Pin SOP-DC


High Speed 5Pin SOP-DC

The ELM452 and ELM453 devices each consist of an infrared emitting diode, optically coupled to a high speed photo detector transistor. A separate connection for the photodiode bias and output-transistor collector increase the speed by several orders of magnitude over conventional phototransistor couplers by reducing the base-collector capacitance of the input transistor. The ELM600, ELM601 and ELM611 are consists of an infrared emitting diode optically coupled to a high speed integrated photo detector logic gate with a strobable output. The devices are packaged in a 5-pin small outline package which conforms to the standard footprint.


  • High speed 1Mbit/s
  • High isolation voltage between input and output (Viso=3750 Vrms )
  • High CMR 15KV/us at Vcm = 1500V (ELM453)
  • Guaranteed performance from 0°C to 70°C
  • Wide operating temperature range of -40°C to 85°C
  • Pb free and RoHS and Halogen free compliat

Other Applications

  • Line receivers
  • Field bus communication and control.
  • Power transistor isolation in motor drives.
  • Replacement for low speed phototransistor photo couplers.
  • High speed logic ground isolation.
  • Analog signal ground isolation.