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High Voltage Solutions

UC Series

Unregulated Dc/Dc High Voltage Modules

Low-cost, fully encapsulated 24 VDC-input modules whose high voltage output is proportional to the applied input voltage. High-frequency sinusoidal conversion keeps operation acoustically inaudible while maintaining low stored energy.

Gamma UC Series product
3-30 kVStandard outputs
5 WMaximum power
24 VDCNominal input
>30 kHzConversion

Key capabilities

  • Output proportional to DC input
  • Arc-over, short-circuit, and overload protection
  • Acoustically inaudible operation above 30 kHz
  • Vacuum-encapsulated high voltage section
  • Compact metal enclosure
  • Low stored energy

Typical applications

  • CRT displays
  • Image intensifiers
  • Photomultiplier bias
  • Electrostatic systems
  • Control-grid bias and ionization chambers

Standard model guide

ModelOutput voltageOutput current
UC5-30-3 kV1.6 mA
UC5-50-5 kV1 mA
UC5-100-10 kV500 µA
UC5-150-15 kV333 µA
UC5-200-20 kV250 µA
UC5-250-25 kV200 µA
UC5-300-30 kV166 µA

Select the model for the required output voltage and add P or N for output polarity. Reversible-polarity versions are available at 3, 5, and 10 kV.

Specifications

Electrical characteristics

Input+24 VDC ±10%
Input current400 mA maximum
Output voltageAdjusted from zero to rated output by varying DC input
Output currentPer model; 5 W maximum
Load regulation20% maximum from half load to full load
ConversionHigh-frequency sinusoidal, above 30 kHz
ProtectionArc-over, short-circuit, and overload protected

Mechanical and interface

Enclosure dimensionsUC5-3 through UC5-15: 2.70 W x 4.50 L x 1.58 H in; UC5-20 and UC5-25: 3.49 W x 5.11 L x 1.56 H in; UC5-30: 3.83 W x 6.33 L x 2.78 H in. See drawings for details.
Weight1.5 lb through 15 kV; 2.5 lb for 20-30 kV
PackagingVacuum-encapsulated high voltage section in a metal case with threaded base inserts
DC inputTwo terminal posts; connect with two 16 AWG leads
HV output12 in flying lead
MountingFour 6-32 inserts; maximum screw engagement 0.25 in
Operating temp.0 to 50 °C

Configuration and options

Integration

  • Connect the +24 VDC source to the input terminals using two 16 AWG leads
  • Ground the negative input at the source or module
  • Connect the high voltage lead to the load
  • Use additional high voltage sleeving over the lead where appropriate
  • Mount with four 6-32 screws; do not exceed 0.25 in engagement

Available options

  • Positive or negative output polarity available on all models; add P or N suffix
  • Reversible-polarity versions available at 3, 5, and 10 kV
  • RoHS-compliant version available

How to order

FormatUC5-[Voltage][Polarity]
ExampleUC5-10P10 kV | Positive | 5 W
CodesP = positive N = negative Reversible versions: 3, 5, and 10 kV

Mechanical drawings

UC5-3 through UC5-15 use the compact enclosure. UC5-20 and UC5-25 use the intermediate enclosure, and UC5-30 uses the largest enclosure. Corresponding views are shown from compact to largest, left to right. Dimensions are in inches.

Front / end views - compact 3-15 kV (left), intermediate 20-25 kV (center), large 30 kV (right)
UC Series compact, intermediate, and large enclosure front views arranged left to right
Side views - compact 3-15 kV (left), intermediate 20-25 kV (center), large 30 kV (right)
UC Series compact, intermediate, and large enclosure side views arranged left to right

UC Series resources

Download the data sheet or contact Gamma for configuration assistance.

Download data sheetContact Gamma