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General Description

The SK Series is a family of miniature single-output, fully regulated DC to DC converters supplying up to 5kV @1W in 0.9625 cubic inches (1.75”L x 1.10”W x 0.50”H). These ultra-compact converters are ideal for applications requiring small size and ease of use. A high impedance programming input makes it very easy to use, eliminating the need for a low impedance adjustable power source voltage.
HVM’s proprietary, ultra-compact resonant converter design minimizes quiescent current and operating noise while delivering maximum performance and reliability. The SK Series is sold with a factory installed copper adhesive shield for further noise reduction.
The devices operate directly from 5VDC ± 0.5VDC input. Output voltage is independent of input power voltage and is proportional to the programming voltage (0 to 5V produces 0 to full scale output) and features excellent linearity. Adjustment pads are available to calibrate the unit to ±5% outside of factory settings. The output power rating is 1W. The SK Series is very stable over a wide operating temperature range.
The SK Series is available with alternate output voltages. Consult sales for additional information


Input Voltage (VIN)

5V ± 10%

SK Series

Miniature High Voltage DC to DC Converter
  • Miniature Size (1.75”L x 1.10”W x 0.50”H)

  • Easy to Use, No External Components Required

  • Excellent Load and Line Regulation

  • Extremely Low Quiescent Current

  • Miniature PC Board Mountable Package

  • Low Ripple and EMI/RFI

  • High Impedance Programming Input (>75kΩ)

  • Wide Operating Temp Range (-40°C to +60°C)

Application Schematic
Typical Applications
  • Mass Spectrometers

  • Photomultiplier Tubes (PMT)

  • Electrostatic Detectors

  • High Voltage Biasing

  • Electrostatic Chucks

  • Piezo Devices

  • HV Amplifiers

Programming Voltage (PGM):

0 to 5V (produces 0 to rated output)

Programming Input Impedance:



± 5%

Output Tolerance at No Load:

Oscillator Frequency:

50kHz to 100kHz

Line Regulation:


pin SK.PNG

Load Regulation


Output Ripple at Full Load:


Calibration Adjustment:

Cal Up and Cal Down pads are active
when attached to GND. ±5% voltage
adjustment typical.


60% Typical at full load


23 grams typical


Encapsulated in high performance epoxy

Operating Temp Range:

-40⁰C to +60⁰C

Storage Temp Range:

-55⁰C to +85⁰C

SK Model Selection Guide.JPG

The SK Series is the newest member of our mini high voltage dc to dc converter family. It is easy to use and requires no external components, which saves space. It offers outstanding load and line regulation, with its low quiescent current and factory installed copper adhesive shield, we have made doubly sure that operating noise is reduced to a minimum. This is why it is so widely used in a variety of industries that includes: the military, scientific, aerospace, analytical, and bio-medical fields.


This compact but powerful dc to dc converter has low output ripple and EMI/RFI, and can operate throughout a wide range of temperatures. It also comes in a miniature PCB mountable package. It is delivered to our clients at a low cost. Because our clients have certain specifications, the SK Series can be made available with alternate output voltages.


Our goal has always been the same from the moment we started in 2004. Create, manufacture and deliver the most advanced and cutting-edge technology to our clients at the lowest possible price. This is how we empower our customers to create the technology of the future, and it is our honor to play a small role in that process.

Innovative High Voltage Products


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