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Single output unipolar programmable power supply: ±0.01 to 30 kV @ 500 μA

  • Up to 30 kV positive or negative output
  • Up to 500 μA of output current (1 mA option available)
  • Extremely low output noise and ripple: under 200 mV p–p at 50 μA (low ripple with higher current available as an option)
  • UL listed and CE marked for 25 μA, 200 mV ripple at +30 μF, 100 mA
  • Differential programming input
  • Separate case ground, control common, and high voltage return
  • Outstanding output voltage stability (under 10 ppm/hr) and temperature coefficient (under 10 ppm/°C)
  • Very good load and line regulation (0.001%)
  • Outstanding slew rate (over 35 V/ms) without voltage oscillations
  • Compact enclosure: 6.0 × 2.1 × 3.7 in.
  • Convenient DB9 connectors for low voltage signal
  • Shielded HV Caton connector
  • Arc and short protected; overcurrent limited
  • Commonly used for E-beam and ion beam applications

The Model 2591P precision high voltage power supply is specifically designed for focused ion and electron beams. It is used in systems in which low noise, high stability, and fast response are main requirements, such as electron and ion beam optics systems for integrated circuit fabrication and testing. The 2591P provides very high quality output voltage parameters without sacrificing its reliability, as it can withstand severe short circuits, arcs, and any other fast transients.

Overvoltage and overcurrent limits provide safe and reliable power supply protection against long-term overloads and load malfunctions. The implementation of differential programming input, as well as the separation of control return from case ground and high voltage return, makes it impossible for noise from control inputs to be reflected on the output side. These design features ensure that the output ripple and noise specifications are always met.

Please contact CPS for further information or questions regarding customization options for the 2591P.

Input voltage24 VDC ± 10%
Input current200 mA maximum at no load
500 mA at 100 μA output
Line regulation0.001%
Internal fuse125 V, 2.5 A
PolarityPositive or negative (factory selected)
Output voltage0.01 to 30 kV (programmable)
Output current500 μA maximum (1 mA available on request)
Load regulation0.001%
Stability10 ppm/hr
Temperature coefficient10 ppm/°C
Noise and ripple< 200 mV peak-to-peak
Operating temperature0 to 50 °C
Dimensions6.0 × 2.1 × 3.7 in.
Low voltage connectorsMale and female DB9 connectors
High voltage output connectorCaton shielded (P/N 17603)
Voltage metering1 V per 10 kV (5 V and 10 V options available)
Voltage programming5 V differential per 30 kV (10 V option available)
Pinout (male DB9)1: Voltage metering
2: NC
3: Power input
4: Interlock
5: Voltage programming (+)
6: Signal return
7: Power return
8: Power return
9: Voltage programming (−)
Pinout (female DB9)1: Interlock
2: Power return
3: NC
4: Case ground
5: −8 NC
9: Signal ground
Technical specificationsModel 2591P Instruction Manual
Model Description Price Order Qty.
1 2–9
2591P Single output unipolar programmable power supply: ±0.01 to 30 kV @ 500 μA $1,162 $1,056 Call