Optocoupler/LED/nixie tube/photoelectric device

The FOD814 consists of two Gallium Arsenide infrared emitting diodes in a 4-pin dual-wire encapsulation, connected in anti-parallel, driving a silicon phototransistor output. The FOD817 series includes a Gallium Arsenide Infrared Emitting Diode driving a Silicon Phototransistor within a 4-pin 2-in-line encapsulation.

1205 Yellow Reverse Mount SMD LED Lamp Beads

The 6N135M, 6N136M, HCPL4503M, HCPL2530M, and HCPL2531M optocouplers consist of an AlGaAs LED optically coupled to a high-speed phototransistor. A separate connection for photodiode biasing reduces the base-collector capacitance of the input transistor and is orders of magnitude faster than conventional phototransistors. The HCPL4503M has no internal connection to the phototransistor base, improving noise immunity. Internal interference shielding with excellent common-mode rejection up to 50,000 V/µs.