Photomultiplier tube module


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 H14121-40 (GaAsP photocathode) is high sensitivity photomultiplier tube module with spectral response range from 300 nm to 740 nm.

Photocathode Area Size Dia.5 mm
Wavelength (Short) 300 nm
Wavelength (Long) 740 nm
Wavelength (Peak) 520 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. 189 mA/W
[Anode] Radiant Sensitivity Typ. 1.9 x 105 A/W
[Anode] Dark current Typ. 3 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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