Photodiode module


Integrates photodiode for precision photometry with low-noise amp [Photosensitive area: 2.4 × 2.4 mm (Si), φ1 mm (InGaAs), built-in Two-color detector]


The C10439 series photodiode modules are high-precision photodetectors that integrate a photodiode and a current-to-voltage amplifi er. The output from these photodiode modules is an analog voltage and can be easily checked with a voltmeter, etc. Since their sensitivity is switchable between two ranges (High/Low), highly accurate output can be obtained by selecting the proper sensitivity range that matches the light level to be detected.

-Voltage output for easy handling
-Two-range (High/Low) switching function
-Compact: business card size
-Can be mounted on optical bench rod (M4)


Photosensitive area 2.4 × 2.4 (Si), φ1 (InGaAs) mm
Spectral response range 320 to 2600 nm
Peak sensitivity wavelength 940 (Si), 2300 (InGaAs) nm
Output Analog
Conversion impedance Low range: 1 × 105
High range: 1 × 106 V/A
Cutoff frequency Low range: 100000
High range: 10000 Hz
Supply voltage ±5 to ±12 V
Measurement condition Ta=25 ℃, Vs=±12 V, unless otherwise noted

Spectral response

Dimensional outline (unit: mm)

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