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HiTek Power® MSS Series
Photo of XS Series Power Supply

Mass Spectrometry Power Supplies

Compact, general-purpose MSS series modules perform reliably, even under short-circuit or arc conditions, for applications that require a small footprint and dependable operation. They can be set by internal potentiometer, external voltage, or an external potentiometer. Typical applications include mass analyzer and ion optics.

The modular design of AE high voltage products for mass spectrometry enables an array of performance features and combinations. From simple options, such as cable length and connector type, to complete custom designs, we deliver solutions that precisely fulfill your specific requirements.

Model-Specific Downloads

MSS series brochure
MSS series brochure   JAPANESE
MSS series brochure   SIMPLIFIED CHINESE
CAD .sat File
CAD .stp File
MSS series 3D PDF  (For 3D viewing, please enable Adobe Viewer in your web browser)
  • Output power: 5 W
  • Output voltage: 5 to 20 kV, depending on model
  • Ripple: < 0.02% peak to peak
  • Temperature coefficient: 300 ppm per °C
  • Stability: < 300 ppm per hr after 1 hr warm up
  • Small package size
  • Versatile control options
  • Screened case for low magnetic radiation
Output Power 5 W max
Output Voltage 5 to 20 kV, depending on model
Output Current 200 μA to 1 mA, depending on model
Output Polarity Positive or negative to order
Input Voltage +24 VDC ±10%
Input Current 0.5 A max
Line Regulation < 0.05% for a 1 V input voltage change
Load Regulation < 0.1% for 10 to 100% load change
Ripple < 0.02% peak to peak
Voltage Control 0 to +10 V = 0 to 100%, accuracy ±2%
Can also be controlled by internal or external potentiometer (see connection details)
Current Control Primary current limit; unit has faults for permanent short circuits to ground
Voltage Monitor 0 to +10 V = 0 to 100%, accuracy ±3%
Current Monitor Optional (please add suffix I to model number)
Stability < 300 ppm per hr after 1 hr warm up
Limits Units have limits for short circuit and intermittent arc to ground.
Reliability MTBF > 50,000 hr
Humidity 80% max relative humidity up to 31°C (88°F), reducing linearly to 50% at 40°C (104°F); non-condensing (ref EN61010-1)
Safety Meets the requirements of the low-voltage directive, 2006/95/EC by complying with BS EN61010-1:2010 when installed as a component part of compliant equipment; Units are CE-marked accordingly.
RoHS Meets the requirements of EU directive 2011/65/EC on the restriction of use of certain hazardous
substances in electrical and electronic equipment (RoHS).
Construction A fabricated aluminium alloy case is used for good heat dissipation and screening.

Temperature Coefficient 300 ppm per °C at max output voltage
Cooling Convection-cooled
Operating Temperature  10 to 50°C (50 to 122°F)
Storage/Transport Temperature -20 to 85°C (-4 to 185°F)
Operational Altitude Sea level to 2000 m (6500′)
Storage/Transport Altitude Sea level to 18,000 m (59,055′)


Accuracy of specifications in unlocked documents cannot be guaranteed. Please contact your AE representative to confirm specifications.

This series is available in the following models.

Model Input
Current (Max)
MSS-502 24 V 50 V to 5 kV 1 mA 5 W
MSS-103 24 V 100 V to 10 kV 500 µA 5 W
MSS-203 24 V 250 V to 2 0kV 200 µA 5 W