Miniature Phototransistor Optocoupler for Hybrid Assembly

The OLI100 is designed especially for hybrid applications that require optical isolation with a high current transfer ratio and low saturation VCE. The device consists of a light emitting diode, and an N-P-N silicon phototransistor mounted and coupled in a miniature custom ceramic package.

The very low input current makes the OLI100 well suited for direct CMOS to Low Power Schottky Transistor to Transistor Logic (LSTTL/TTL) interfaces.

The OLI100 is mounted by standard hybrid assembly with nonconductive epoxies. Gold or aluminum wire bonding can be used to make electrical connections for maximum placement flexibility.


Product LifecycleIn Production
ConditionCTR @ IF = 10 mA
CTR Min.100%
CTR Max.
Vcc Max. (V)
Switching Time (μs)25
Isolation @ VDC 1 Sec.1500
Package Photo
Package Info6-Lead Ceramic Carrier Chip for Hybrid Assembly
Radiation Tolerant
No Base Connection


  • Current transfer ratio guaranteed over –55 °C to +125 °C ambient temperature range
  • Electrical isolation: 1500 VDC
  • High current transfer ratio: 100% minimum over temperature
  • High current transfer ratio at low input current: 100% at IF = 1 mA over temperature
  • High reliability and rugged construction
  • CTR-comparable to Darlington output but with low saturation VCE = 0.15 V typical
  • Similar to 4N2X, 4N3X type optocouplers
  • Custom package available

Product Documents



See all

Biomedical Materials

See all

Surveillance Systems

See all

Specialty Medical Applications

See all


See all


See all


See all


See all