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MODEL 3601

Triple output power supply: −30/−50 kV @ 300 μA, 0 to +10 kV @ 200 μA, 0.1 to 5 A

  • Output ripple under 100 mV at full load
  • Temperature coefficient under 300 ppm/°C
  • Stored energy under 1 J
  • Low reflected ripple on input power line
  • Rack-mountable
  • Commonly used with electron probes and similar applications

Model 3601 is a high voltage system for scanning electron microscopes that provides up to 30 kV (3601-30) or 50 kV (3601-50) accelerator voltage, 2 kV bias/focus voltage and 5 A for the gun's filament. The bias and filament supplies float at the accelerator voltage. They can be isolated from ground by up to 40 kV, while power input and all controls remain at ground potential. An isolated serial communication link allows an external computer to control and monitor the three supplies. Supplied software includes a Windows graphical user interface and associated DLL. The source code is available from CPS upon request. Customization of these supplies is available; please call for details.

PN Image Description
3603CBL 3-conductor, high voltage output cable (included with model 3601).
Acceleration Voltage
Output voltage3601-30N: -30 V to -30 kVDC
3601-30P: +30 V to +30 kVDC
3601-50N: -50 V to -50 kVDC
3601-50P: +50 V to +50 kVDC
Output current300 μA maximum at full load
Accuracy±1% from 0 to −30 kV
Ripple< 200 mV peak-to-peak
Stability10 ppm/hour (25 °C, bias and filament fixed)
Temperature coefficient< 100 ppm/°C
Output voltage0 to -2 kVDC
Output current200 μA maximum at -2 kV
Accuracy±5% from 0 to -2 kV
Ripple< 200 mV peak-to-peak
Stability10 ppm/10 minutes (25 °C, filament fixed)
Temperature coefficient< 1000 ppm/°C
Output0 to 25 W (0.1 to 5.0 A at up to +5 VDC)
Load resistance0 to 1 Ω
Ripple< 10 mV peak-to-peak
Stability100 ppm/10 minutes
Temperature coefficient< 300 ppm/°C
Input voltage110 to 240 VAC, 5 to 60 Hz
Dimensions19 × 5¼ × 16 in.
SchematicsBlock diagram of Model 3601
ManualInstruction manual for Model 3601
Application softwareGraphical UI and DLL for Model 3601
Model Description Price Order Qty.
1 2–9
3601-30N -30 kV electron probe power supply $7,950 $7,250 Call
3601-50N -50 kV electron probe power supply $7,950 $7,250 Call
3601-30P +30 kV electron probe power supply $7,950 $7,250 Call
3601-50P +50 kV electron probe power supply $7,950 $7,250 Call