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OP521DA - Silicon Photo Darlington

Download the OP521DA datasheet PDF. This datasheet also covers the OP520DA variant, as both devices belong to the same silicon photo darlington family and are provided as variant models within a single manufacturer datasheet.

General Description

The OP520DA and OP521DA are NPN silicon photo darlingtons mounted in miniature 1206 SMD packages.

Both the OP520DA and OP521DA have a flat lens however, the OP520DA lens are opaque to shield the device from ambient light unlike the lens of the OP521DA.

Key Features

  • x High Photo Sensitivity x Fast Response Time x 1206 Package Size x Opaque or Water Clear Flat Lens x High Current Gain.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (OP520DA-OPTEK.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number OP521DA
Manufacturer OPTEK
File Size 952.97 KB
Description Silicon Photo Darlington
Datasheet download datasheet OP521DA Datasheet

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Other Datasheets by OPTEK

Part Number Description
OP521 SMD Silicon Phototransistor
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
Silicon Photo Darlington in Miniature 1206 SMD Package OP520DA, OP521DA Features: x High Photo Sensitivity x Fast Response Time x 1206 Package Size x Opaque or Water Clear Flat Lens x High Current Gain Descriptions: The OP520DA and OP521DA are NPN silicon photo darlingtons mounted in miniature 1206 SMD packages. Both the OP520DA and OP521DA have a flat lens however, the OP520DA lens are opaque to shield the device from ambient light unlike the lens of the OP521DA. These sensors are packaged in compact 1206 size chip carriers that are compatible with most automated mounting equipment. The OP520DA and OP521DA are mechanically and spectrally matched to the OP250 series infrared LEDs. Since these devices have a flat window lens, they enable a wide acceptance angle.