Integrated Socket High-Voltage Power Supply for Photomultiplier Tubes (PMT)
The HPMS series integrates a high-voltage power supply and a voltage divider network into a compact socket designed for side-on photomultiplier tubes (PMTs). This all-in-one design eliminates the need for external high-voltage wiring, simplifying system integration while ensuring high reliability.
Available for 1-1/8 inch (28 mm) diameter PMTs, the HPMS series delivers the low ripple and high stability performance required for precision measurement applications.
FEATURES
HPMS-1N-L2B
- Designed for 28 mm (1-1/8 in.) side-on PMTs
- Integrated high-voltage power supply and voltage divider
- Compact design for easy system integration
- Output voltage controlled via external control voltage
HPMS-1N
- Designed for 28 mm (1-1/8 in.) side-on PMTs
- Integrated high-voltage power supply and voltage divider
- Includes voltage monitor and mounting flange
- Output voltage controlled via external control voltage
HPMS-1.25N / 1.8N
- Designed for 1-1/8 inch (28 mm) or larger side-on PMTs
- Integrated high-voltage power supply and voltage divider
- High stability and low ripple performance
- Output voltage controlled via external control voltage
APPLICATIONS
- Photomultiplier tubes (PMTs)
- Radiation detection systems
- Analytical instrumentation (Spectrophotometers, Flow cytometers)
- Biomedical measurement
Models
| Model | Output Voltage | Ripple | Size [inch(mm)] | PMT type |
|---|---|---|---|---|
| HPMS-1N | 0 to -1.0 kVdc | Less than 1 mVp-p | Φ: 1.38(35) × L: 2.09(53) | Hamamatsu R928 |
| HPMS-1N-L2B | 0 to -1.0 kVdc | Φ: 1.18(30) × L: 2.4(61) | Hamamatsu R928 | |
| HPMS-1.25N | 0 to -1.25kVdc | Less than 100 mVp-p | Φ: 1.73(44) × L: 2.25(57) | Hamamatsu R980 |
| HPMS-1.8N | 0 to -1.8kVdc | Hamamatsu R580 |
Specifications
- Input voltage
- 15 Vdc
- Output voltage control
- External control voltage (Vcon-in) 0 to 1 Vdc
Options
- -L2
-
Voltage monitor output, 0 to -1V
(output impedance 15.2 kΩ typ)
Compatible model: HPMS-1N -
Voltage monitor output 1/1000
Compatible model: HPMS-1.25N/HPMS-1.8N
Diagram
Internal Connection
Dimensions
MPMS-1N: Φ35 x L53mm (Φ1.38" x 2.09")
HPMS-1N-L2B: Φ32 x L61mm (Φ1.26" x 2.40")
HPMS-1.25N/1.8N: Φ44 x L57mm (Φ1.73" x 2.24")
For details, download the datasheet below.
Download
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-
Photomultiplier Tube Socket Supplies - Selection Guide
Date: 2025-11-11 Rev 04
PDF (3,359 KB)

-
Safety and Usage of High voltage Power supply
Date: 2025-09-08 rev 04
PDF (602 KB)
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-
Photomultiplier Tube Socket Supplies - Selection Guide
Date: 2025-11-11 Rev 04
PDF (3,359 KB)

-
Safety and Usage of High voltage Power supply
Date: 2025-09-08 rev 04
PDF (602 KB)
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