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OP521 - SMD Silicon Phototransistor

Download the OP521 datasheet PDF. This datasheet also covers the OP520 variant, as both devices belong to the same smd silicon phototransistor family and are provided as variant models within a single manufacturer datasheet.

General Description

The OP520 and OP521 are NPN silicon phototransistor mounted in miniature SMT packages.

Both the OP520 and OP521 have a flat lens however, the OP520 lens is opaque to shield the device from stray light.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (OP520-OPTEK.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number OP521
Manufacturer OPTEK
File Size 262.14 KB
Description SMD Silicon Phototransistor
Datasheet download datasheet OP521 Datasheet

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Other Datasheets by OPTEK

Part Number Description
OP521DA Silicon Photo Darlington
OP520 SMD Silicon Phototransistor
OP520DA Silicon Photo Darlington

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
SMD Silicon Phototransistor OP520, OP521 OP520, OP521 • High Photo Sensitivity • Fast Response Time • 1206 Package Size • Opaque or Water Clear Flat Lens Description: The OP520 and OP521 are NPN silicon phototransistor mounted in miniature SMT packages. Both the OP520 and OP521 have a flat lens however, the OP520 lens is opaque to shield the device from stray light. These sensors are packaged in 1206 size chip carriers that are compatible with most automated mounting equipment. The OP520 and OP521 are mechanically and spectrally matched to the OP250 series infrared LEDs. Applications • Non-Contact Position Sensing • Datum detection • Machine automation • Optical encoders Darker Green Mark RECOMMENDED SOLDER PADS [4.60±0.10] .181±.0039 [1.50±0.10] .059±.0039 [1.60±0.10] .063±.