CA series

Output up to 2kV 1W

high-voltage-supply CA series

The CA Series of high performance,precision regulated, high voltage power supplies offers improved performance and added features. Improvements in stability and ripple, along with an on-board precision reference, voltage monitor and increased protection enable these modules to replace much larger, more expensive power supplies in many applications.

Each model is programmed from 0 to 100% of rated output via a 0 to +5VDC compatible high impedance programming input*6.

A voltage monitor is provided and is internally buffered to provide a low impedance (up to 1mA) signal to external circuitry. The precision on-board reference can be used in conjunction with an external potentiometer or voltage divider to program the high voltage output.

Each unit has an accessible potentiometer allowing for individual calibration after installation. A quasi sine wave oscillator, internal transformer shielding and an isolated steel case reduce EMI/RFI radiation to very low levels. Suitable for photomultiplier tubes, avalanche photodiodes, precision EO lenses, piezo devices and other applications requiring precision, low noise high voltage in a miniature, PCB mountable, cost effective package.


  • Very low ripple
  • Precision regulated
  • Miniature shielded case
  • 0 to 100% programmable
  • Voltage monitor output
  • High stability
  • Wide input voltage range
  • Short Circuit Protected, up to 1 minute
  • UL94-V0 Compliant Epoxy
Specifications *1:

   Input Voltage: 11.5VDC to 15.5VDC   (for 12V Input Power option)
4.75VDC to 5.25VDC   (for 5V Input Power option)
   Input Current: <80mA no load /<220mA full load   (for 12V Input Power option)
<65mA no load /<420mA full load   (for 5V Input Power option)
   Programming voltage: 0 to 5VDC , <150µA   (for 12V Input Power option)
0 to 2.048VDC , <150µA   (for 5V Input Power option)
   Voltage monitor: 0 to 5V = 0 to 100% VOUT   (for 12V Input Power option) *2
0 to 2.048V = 0 to 100% VOUT   (for 5V Input Power option)*2
   Reference output: 5.0V ±1% , up to 1mA    (for 12V Input Power option)
2.048V ±1% , up to 1mA   (for 5V Input Power option)
   Stability: <50ppm/h *3
   Linearity: <±0.5% (for 15% to 100% VOUT) *3
   Temp. coefficient: <25ppm/°C *3
   Operating temp.: -10°C to +50°C   (-55°C to +70°C for option -T)
   Storage temp.: -25°C to +95°C
   Thermal Shock Limit: 1°C/10s

Model Overview

(Full load p-p)
CA02P 0 to +200V 5mA <0.01% <0.05% <0.01%
CA02P-5 0 to +200V 5mA <0.01% <0.01% <0.01%
CA02N 0 to -200V 5mA <0.01% <0.05% <0.01%
CA02N-5 0 to -200V 5mA <0.003% <0.005% <0.01%
CA05P 0 to +500V 2mA <0.01% <0.01% <0.01%
CA05P-5 0 to +500V 2mA <0.002% <0.003% <0.005%
CA05N 0 to -500V 2mA <0.01% <0.01% <0.01%
CA05N-5 0 to -500V 2mA <0.002% <0.005% <0.005%
CA10P 0 to +1000V 1mA <0.001% <0.005% <0.001%
CA10P-5 0 to +1000V 1mA <0.001% <0.005% <0.001%
CA10N 0 to -1000V 1mA <0.001% <0.005% <0.001%
CA10N-5 0 to -1000V 1mA <0.001% <0.005% <0.001%
CA12P 0 to +1200V 0.8mA <0.001% <0.005% <0.0005%
CA12P-5 0 to +1200V 0.8mA <0.001% <0.005% <0.001%
CA12N 0 to -1200V 0.8mA <0.001% <0.005% <0.0005%
CA12N-5 0 to -1200V 0.8mA <0.001% <0.005% <0.001%
CA20P 0 to +2000V 0.5mA <0.01% <0.01% <0.001%
CA20P-5 0 to +2000V 0.5mA <0.003% <0.005% <0.001%
CA20N 0 to -2000V 0.5mA <0.01% <0.01% <0.001%
CA20N-5 0 to -2000V 0.5mA <0.001% <0.001% <0.001%

* Notes:

  1. Specifications after 1 hour warm-up, full load, +25°C unless otherwise noted.
  2. On negative output models, voltage monitor output is a buffered representation of the programming voltage.
  3. Typical performance.
  4. All grounds internally connected, except case.
  5. Maximum rated output current is typically available from 100% max output voltage to 50% max output voltage, and is derated below 50% max output voltage.
  6. 5V Input Power option, programming and voltage monitor are 0 to +2.048V.


-T      Extended Operating Temperature


The information given here is technical data, not assured product characteristics. It has been carefully checked and is believed to be accurate; however, no responsibility is assumed for inaccuracies. The user has to ensure by adequate tests that the product is suitable for his application regarding safety and technical aspects. GmbH & Co. KG does not assume any liability arising out of the application or use of any product described.

Safety Advice

Design, installation and inspection of machinery and devices carrying high voltage require accordingly trained and qualified personnel. Appropriate safety rules and directives must be complied with.
Improper handling of high voltage can mean severe injuries or death and may cause serious collateral damage!