Hermetic Linear Optocoupler

The OLH7000 linear optocoupler consists of two LEDs in a series coupled to two PIN photodiode detectors.

The photodiode on the input side acts as a feedback device that permits an external feedback loop to ensure constant LED light output. A similar matching photodiode on the output side is used to drive an output circuit that is electrically isolated from the input. A fixed relationship is thus maintained between the input and output, and compensates for the LED's nonlinear, time, and temperature characteristics.

Each OLH7000 is mounted and coupled in a hermetic 8-pin ceramic dual in-line package (DIP) that provides 1000 VDC electrical isolation between the input and output.


Product LifecycleIn Production
ConditionTransfer Gain, K1/K2
Transfer Gain Min.0.75
Transfer Gain Max.1.25
Isolation @ VDC 1 Sec.1000
Package Photo
Package Info8-Lead Hermetic Dip


  • High reliability and rugged hermetic construction
  • Couples AC and DC signals
  • 1000 VDC electrical isolation
  • Matched photodiodes
  • Excellent linearity and stability

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