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Part no. SMD / PINS Operation distance, typ. Dimensions LxWxH [mm] Details

SMD 1mm 2.18 x 1.9 x 0.75 plus >>


SMD 1mm 1.5 x 1.375 x 0.6 plus >>


Pins 2mm 4.0 x 3.0 x 1.7 plus >>


SMD / Pins 2mm 3.4 x 2.7 x 1.5 plus >>


SMD 2mm 3.4 x 2.7 x 2.2 plus >>


Pins 5mm 11.5 x 4.2 x 6.0 plus >>


SMD 0.7mm 1.2 x 1.7 x 0.6 plus >>


SMD 0.7mm 1.3 × 1.6 × 0.6 plus >>


SMD 0.7mm 1.6 × 2.0 × 0.6m plus >>


SMD 0.7mm 1.9 × 2.6 × 0.8 plus >>

Photoreflectors (or sometimes called reflective interrupters) are composed of an infrared LED and a phototransistor in one housing, similar to the previously discussed transmissive photointerrupters.

The main difference is, that the IR emitting LED and the phototransistor are not positioned face to face like in the transmissive interrupters, but the emission and detection direction of both devices are oriented parallel to each other in the same direction. If there is no reflecting surface positioned above the device, the IR radiation emitted by the IR-LED “is lost” in the space above the device and there is no photo current through the phototransistor. If there is a reflecting surface present within distances smaller than the detection range, the infrared radiation is reflected to the phototransistor and a photocurrent is generated.

Citizen Electronics (CE) is a Japanese manufacturer of optoelectronic devices. Citizen Electonics was founded in 1970 and is one of the first manufactureres of SMD-LEDs of the world. There is a sales office located in Frankfurt / Germany which supports direct and the distribution customers. The main product lines of CE are high power LEDs up to 180W, low power SMD-LEDs and optical sensor devices like reflective and transmissive interrupters.
Everlight Electronics Co. , Ltd was founded in 1983 in Taipei as a manufacturer for optoelectronic devices. Everlight was played an important role in development of LED technology and is nowadays  one of the  biggest producers of optoelectronic devices. Everligth offers a wide variety of devices like High-Power-LEDs, low-power SMD- LEDs, LED-Displays, photocoupler and IR-components.

contact technique

Dr. Thomas Wolf
Fon: +49 7452 6007 23
Fax: +49 7452 6007 823

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