Photomultiplier tube module


The H14447 is a photomultiplier tube module containing a high-speed response 28-mm diameter head-on photomultiplier tube, and a high-voltage power supply circuit. Besides high-speed response, these modules feature high gain and have a large effective diameter for better light collection making them ideal for high-speed underwater optical communications.



Eye pattern

eye pattern

Time response

Time response


Photocathode Area Shape Round
Photocathode Area Size Dia.25 mm
Wavelength (Short) 300 nm
Wavelength (Long) 650 nm
Wavelength (Peak) 420 nm
Dimension (W x H x D) Dia.35 x 105 mm
Input Voltage +4.8 to +5.5 V
Max. Input Voltage 6 V
Max. Input Current 6 mA
Max. Output Signal Current 100 μA
Max. Control Voltage +2.1 (Input impedance 1 M-ohm) V
Recommended Control Voltage Adjustment Range +1.6 to +2.0 (Input impedance 1 M-ohm) V
[Cathode] Luminous Sensitivity Min. 70 μA/lm
[Cathode] Luminous Sensitivity Typ. 95 μA/lm
[Cathode] Blue Sensitivity Index (CS 5-58) Typ. 10
[Cathode] Radiant Sensitivity Typ. 80 mA/W
[Anode] Luminous Sensitivity Min 0.1 A/lm
[Anode] Luminous Sensitivity Typ. 0.8 A/lm
[Anode] Radiant Sensitivity Typ. 6.7 x 102 A/W
[Anode] Dark Current (after 30min.) Typ. 0.1 nA
[Anode] Dark Current (after 30min.) Max. 1 nA
[Time Response] Rise Time Typ. 0.35 ns
Ripple Noise (peak to peak) Max. 0.1 mV
Settling Time Max. 10 s
Operating Ambient Temperature +5 to +50 ℃
Storage Temperature -20 to +50 ℃
Weight 105 g

Dimensional outline

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