Original, genuine part:

HAMAMATSU S3979
PSD photodiode dual channel
(Position Sensitive Detector)
with borosilicate glass window

Spectral response range 320 - 1100nm
(peak 920nm)

low dark current ( 0.1 nA )

high quality - made in Japan

large photosensitive area - 1x3mm

position resolution (λ900nm/200nm spot size) -  0.1 μm

photo sensitivity S@λp - 0.55 A/W

3 pin - gold plated

ideal for displacement sensing, distance measurement,
proximity switching, dual channel light meters, spectroscopy,
laser spot tracker, laser profilometer etc.

3D model available at:
https://grabcad.com/library/hamamatsu-s3979-photodiode-psd-1

datasheet:
http://www.farnell.com/datasheets/8751.pdf


Shipped from EU, with tracking number.


tags: lateral effect photodiode ,  laser triangulation sensor , Segmented Photodetector , Quadrant Photodiode , Photodiode Array , Position sensitive photodiode , 1D psd , laser alignment , Hamamatsu Photonics, position-sensitive diode, AFM probe , atomic force microscope