Photomultiplier tube module

H14121-50

The H14121 series are photomultiplier tube modules containing a metal package PMT having a GaAsP/GaAs photocathode and a high-voltage power supply circuit. The H14121-50 (GaAs photocathode) is high sensitivity photomultiplier tube module with spectral response range from 380 nm to 900 nm.

Photocathode Area Size Dia.5 mm
Wavelength (Short) 380 nm
Wavelength (Long) 900 nm
Wavelength (Peak) 630 nm
Input Voltage +11.5 to +15.5 V
Max. Input Voltage +18 V
Max. Input Current 12 mA
Max. Output Signal Current 2 μA
Max. Control Voltage +0.9 (Input impedance 30 kΩ) V
Recommended Control Voltage Adjustment Range +0.5 to +0.8 V
[Cathode] Radiant Sensitivity Typ. 95 mA/W
[Anode] Radiant Sensitivity Typ. 9.5 x 104 A/W
[Anode] Dark Current Typ. 4 nA
Ripple noise (peak to peak) Max. 0.6 mV
Settling time Max. 0.2 s
Operating Ambient Temperature +5 to +35 ℃
Weight Approx. 76 g

Dimensional outline (unit: mm)

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