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One-dimensional PSD

S3931

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6 mm resistance length PSD for precision distance measurement

Hamamatsu provides various types of one-dimensional PSD (Position Sensitive Detector) designed for precision distance measurement such as displacement meters. S3931 has an active area of 1 × 6 mm respectively, and is mounted on a compact ceramic package with a transparent resin window.


Features
-Superior position detection ability
-High reliability
-Easy to use 4-pin small ceramic package

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Specifications

Photosensitive area 1 x 6 mm
Package Ceramic
Peak sensitivity wavelength (typ.) 920 nm
Photosensitivity (typ.) 0.55 A/W
Spectral response range 320 to 1100
Dark current (max.) 10 nA
Rise time (typ.) 1.5 μs
Terminal capacitance (typ.) 40 pF
Interelectrode resistance (typ.) 50 kΩ
Measurement condition Typ. Ta=25 ℃, unless otherwise noted

Spectral response

k_s3270_sr_xx.jpg

Dimensional outline (unit: mm)

KPSDA0048

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