Micro-PMT assembly


Assembly type includes a voltage divider circuit to ensure ease-of-use and design flexibility. The H12400-20-01 is extended red multialkali photocathode micro PMT assembly 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
Maximum supply voltage (Between anode and cathode) -1150 V
Maximum average output signal current 5 μA
[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
[Time response] Transit time 8 ns
[Time response] T.T.S. 1.3 ns

Dimensional outline (Unit mm)

H12400 series

Dedicated adaptor for optical block to Micro PMT assembly

* Dedicated Adaptor for optical block is supplied.

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