Micro-PMT module


H12402 series is the most widespread standard type and has a built-in high-voltage power supply. The H12402-20 is extended red multialkali photocathode micro PMT module with spectral response range from 300 nm to 920 nm.

Spectral response 300 nm to 920 nm
Peak sensitivity wavelength 630 nm
Photocathode material Extended red multialkali
Window material Borosilicate glass
Effective area 1 mm x 3 mm
Input voltage ±4.5 V to ±5.5 V
Max. Input voltage +5.5 V
Max. Average output signal current 5 μA
Max. Control voltage +1.15 V
Recommended control voltage sdjustment range +0.5 V to +1.1 V
Control voltage input impedance 1 MΩ
[Cathode] Luminous sensitivity Min. 300 μA/lm
[Cathode] Luminous sensitivity Typ. 400 μA/lm
[Cathode] Radiant sensitivity Typ. 60 mA/W
[Cathode] Red/White ratio Typ. 0.45
[Anode] Luminous sensitivity Min. 30 A/lm
[Anode] Luminous sensitivity Typ. 100 A/lm
[Anode] Radiant sensitivity Typ. 1.5 x 104
Gain Typ. 2.5 x 105
Anode dark current Typ. 0.6 nA
Anode dark current Max. 6 nA
[Time response] Rise time 1.2 ns
Ripple noise (peak to peak) 0.3 mV
Settling time 10 s

Dimensional outline (Unit mm)

Signal input/output

Cable  Color Signal type
UL1430 AWG26 Black GND
Red Low voltage input (+5 V)
Blue Vref output (+1.2 V)
White Vcont input (+0.5 V to +1.1 V)
RG-174/U - Signal output / Signal GND (Coaxial)

Details of input window

Cross section

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