DC-DC
Small, light and efficient DC-DC converters
Our DC-DC converters and power supplies are available in various outputs, from 75W up to 700W. We supply a range of standard PCB Mounted products, laptop power supplies and man-portable military equipment, whilst our collection includes through-hole, chassis mount and baseplate cooled converters. Whether you require a regulated, unregulated, high voltage or low voltage DC-DC converter, we can give you access to first-class supplies that are accurate, reliable and efficient.
Experts in custom
DC-DC converters
With 90% of our business focused on custom power design, we understand just how important it is to provide a flexible approach design and development. If you require a custom DC-DC converter or power supply for your specialist machinery, we can provide a completely tailored solution to optimise performance, efficiency and accuracy. All of our designers are based in the UK, as are our AS9100 certified manufacturing partners.
If you’d like to learn more about us and how we can develop the optimal DC-DC converter for your application, please call on-systems today on 44 (0) 203 195 2760 or send us a message and we’ll be back in touch as soon as possible.
Mission-critical military power supply solutions
Having meticulously developed our series of DC-DC converters, each and every one of our pioneering products has been designed and approved for use in defence, aerospace, marine, energy and media industries, so we are one of very few UK power system manufacturers capable of challenging convention and meeting the most demanding of expectations. From base plate cooled power supplies, PCB mounted products, laptop power supplies, conduction cooled systems and man-portable military equipment, we deliver solutions that reduce power, heighten efficiency, offer reliable performance and guarantee accurate power consumption.

BOA 150 Wide Range 9 to 38VDC 150W<
BOA is an M-COTS, low profile, fully compliant base plate cooled DCDC power supply with a fully regulated output of up to 600W.
Designed for harsh military applications, the units are available with a wide 9 to 38VDC input for 12V and 28V military systems, for both platform and terminal connected equipment.
Integral EMC filtering to MIL-STD 461 and surge protection to MIL-STD 704/ 1275/ DEF-STAN 61-5 part 6 issue 5/6 allows for direct connection to the supply voltage. Optional load dump feature provides full ride through protection against the 202V DC surge required to meet the DEF-STAN 61-5 part 6 issue 6 with no loss of output voltage.
- Operating Temperature: -46C to +75C
- Wide Input Voltage: 9V to 38V DC
- MIL-STD 461
- MIL-STD 704
- MIL-STD 810
- MIL-STD1275
- DEF-STAN 59-411
- DEF-STAN 61-5 part 6 issue 6
- Weight: <2Kg
- MTBF: 300kHrs
- Efficiency: >92%

BOA 300 Wide Range 9 to 38VDC 300W<
BOA is an M-COTS, low profile, fully compliant base plate cooled DCDC power supply with a fully regulated output of up to 600W.
Designed for harsh military applications, the units are available with a wide 9 to 38VDC input for 12V and 28V military systems, for both platform and terminal connected equipment.
Integral EMC filtering to MIL-STD 461 and surge protection to MIL-STD 704/ 1275/ DEF-STAN 61-5 part 6 issue 5/6 allows for direct connection to the supply voltage. Optional load dump feature provides full ride through protection against the 202V DC surge required to meet the DEF-STAN 61-5 part 6 issue 6 with no loss of output voltage.
- Operating Temperature: -46C to +75C
- Wide Input Voltage: 9V to 38V DC
- MIL-STD 461
- MIL-STD 704
- MIL-STD 810
- MIL-STD1275
- DEF-STAN 59-411
- DEF-STAN 61-5 part 6 issue 6
- Weight: <2Kg
- MTBF: 300kHrs
- Efficiency: >92%

BOA 400 Wide Range 9 to 38VDC 400W<
BOA is an M-COTS, low profile, fully compliant base plate cooled DCDC power supply with a fully regulated output of up to 600W.
Designed for harsh military applications, the units are available with a wide 9 to 38VDC input for 12V and 28V military systems, for both platform and terminal connected equipment.
Integral EMC filtering to MIL-STD 461 and surge protection to MIL-STD 704/ 1275/ DEF-STAN 61-5 part 6 issue 5/6 allows for direct connection to the supply voltage. Optional load dump feature provides full ride through protection against the 202V DC surge required to meet the DEF-STAN 61-5 part 6 issue 6 with no loss of output voltage.
- Operating Temperature: -46C to +75C
- Wide Input Voltage: 9V to 38V DC
- MIL-STD 461
- MIL-STD 704
- MIL-STD 810
- MIL-STD1275
- DEF-STAN 59-411
- DEF-STAN 61-5 part 6 issue 6
- Weight: <2Kg
- MTBF: 300kHrs
- Efficiency: >92%

BOA 600 Wide Range 9 to 38VDC 600W<
BOA is an M-COTS, low profile, fully compliant base plate cooled DCDC power supply with a fully regulated output of up to 600W.
Designed for harsh military applications, the units are available with a wide 9 to 38VDC input for 12V and 28V military systems, for both platform and terminal connected equipment.
Integral EMC filtering to MIL-STD 461 and surge protection to MIL-STD 704/ 1275/ DEF-STAN 61-5 part 6 issue 5/6 allows for direct connection to the supply voltage. Optional load dump feature provides full ride through protection against the 202V DC surge required to meet the DEF-STAN 61-5 part 6 issue 6 with no loss of output voltage.
- Operating Temperature: -46C to +75C
- Wide Input Voltage: 9V to 38V DC
- MIL-STD 461
- MIL-STD 704
- MIL-STD 810
- MIL-STD1275
- DEF-STAN 59-411
- DEF-STAN 61-5 part 6 issue 6
- Weight: <2Kg
- MTBF: 300kHrs
- Efficiency: >92%

COBRA 115 10A Surge and Transient Filter
COBRA is a COTS Military, low profile, PCB mounted, fully compliant surge and transient protection module with integral EMC filter, designed to protect downstream DC-DC converters in Vehicle, Mobile or Avionic applications of up to 10A rating.
- Operating temperature: -46C to +90C
- Altitude: 51,000ft
- Input Range: 9V to 38VC DC
- MIL-STD 461
- MIL-STD 704
- MIL-STD 810
- MIL-STD 1275
- DEF-STAN 0035
- MTBF: >200kHrs
- Efficiency: 87% typ.

COBRA 230 20A Surge and Transient Filter
COBRA is a COTS Military, low profile, PCB mounted, fully compliant surge and transient protection module with integral EMC filter, designed to protect downstream DC-DC converters in Vehicle, Mobile or Avionic applications of up to 20A rating.
- Operating temperature: -46C to +90C
- Altitude: 51,000ft
- Input Range: 9V to 38VC DC
- MIL-STD 461
- MIL-STD 704
- MIL-STD 810
- MIL-STD 1275
- DEF-STAN 0035
- MTBF: >200kHrs
- Efficiency: 87% typ.

HEDGEHOG UPS Dual Input 700W Uninterruptible Power Supply
HEDGEHOG UPS is a configurable, modular, EMI silent power supply.
With 80 to 264VAC and 18 to
38VDC inputs, the UPS will provide a 28VDC
output from all sources.
No battery, Li-Ion, or Lead Crystal battery options.
- Operating Temperature: -46C to +75C
- IP65, CARC, IRR coating
- MIL-STD 461
- MIL-STD 704
- MIL-STD 810
- MIL-STD1275
- DEF-STAN 59-411
- DEF-STAN 61-5
- Weight: <20Kg
- MTBF: 150kHrs
- Efficiency: >85%

Coming soon - PEBBLE100 Wide Range DC Input 100W Laptop Power Supply
PEBBLE100 is a TEMPEST compliant, portable laptop power adaptor.
With an auto-ranging 90 to
264VAC input, PFC, and military EMI
filtering, the PEBBLE100 is the perfect choice for ruggedised laptops.
Configured for Class I and
Class II input conditions, PEBBLE100 can
be your standard laptop power adaptor.
Also available as a base-plate cooled version.
- Operating Temperature: -20C to +60C
- IP66
- MIL-STD 461
- MIL-STD 704
- MIL-STD 810
- MIL-STD1275
- DEF-STAN 59-411
- DEF-STAN 61-5
- DO-160G Harmonics
- SDIP-27 Level-B
- Weight: <200g
- MTBF: 750khrs
- Efficiency: >93%

Coming soon - PEBBLE200 Wide Range DC Input 200W Laptop Power Supply
PEBBLE200 is a TEMPEST compliant, portable laptop power adaptor.
With an auto-ranging 90 to
264VAC input, PFC, and military EMI
filtering, the PEBBLE200 is the perfect choice for ruggedised high power laptops and small
servers.
Configured for Class I and Class II
input conditions, PEBBLE200 can be your standard power adaptor.
Also available as a base-plate
cooled version.

PYTHON 18 to 72V DC Input 3U 1" 120W Power Supply
PYTHON 120 is a 3U, 1" Wedgelock cooled, VPX power supply.
With 18 to 38V DC or 36 to 72V DC
input, 120W is delivered to 4 outputs, with
integrated 100ms hold up.
- Operating Temperature: -46C to +90C
- MIL-STD 461
- MIL-STD 704
- MIL-STD 810
- MIL-STD1275
- Weight: <2Kg
- MTBF: 150kHrs
- Efficiency: >85%
- PICMG 2.11 Connector Pin out
- VITA 46 Mechanical Interface
COMING SOON - 150W External Military DC-DC Power Supply in Metal Housing
COMING SOON - 300W External Military DC-DC Power Supply
Mission-critical military power supply solutions
Having meticulously developed our series of DC-DC converters, each and every one of our pioneering products has been designed and approved for use in defence, aerospace, marine, energy and media industries, so we are one of very few UK power system manufacturers capable of challenging convention and meeting the most demanding of expectations. From base plate cooled power supplies, PCB mounted products, laptop power supplies, conduction cooled systems and man-portable military equipment, we deliver solutions that reduce power, heighten efficiency, offer reliable performance and guarantee accurate power consumption.
Experts in custom DC-DC converters
With 90% of our business focused on custom power design, we understand just how important it is to provide a flexible approach design and development. If you require a custom DC-DC converter or power supply for your specialist machinery, we can provide a completely tailored solution to optimise performance, efficiency and accuracy. All of our designers are based in the UK, as are our AS9100 certified manufacturing partners.
If you’d like to learn more about us and how we can develop the optimal DC-DC converter for your application, please call on-systems today on +44 (0) 203 195 2760 or send us a message and we’ll be back in touch as soon as possible.