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DC-DC Converters
At Daburn Electronics & Cable, we offer an impressive variety of DC-DC converters through our Polytron Devices division. Our comprehensive inventory spans a range from half a Watt to 200 Watts, with a wide variety of output types and packaging options. With dozens of options available for a range of applications, our DC-DC converters are available with single, dual, or triple output, as well as wide and ultra-wide input ranges. They are useful in many different industries, including rail transportation and the medical field. We also offer custom designs to meet your application. Please call for a quote or a custom design today.

Seven different power-range classifications
With a large range of designs available, we classify our DC-DC converters into seven different groups based on their power usage: Please click a link below to see a full listing of our standard DC-DC converter power supplies.
- 0.5 to 3 Watt More than 20 series options in this category, built with single or dual output. Feature variations include internal SMD construction, continuous short-circuit protection, reinforced insulation, high-performance pi input filters, low noise, epoxy encapsulation, or no minimum load requirements. The SWU2/MHIA and TWB3/MHIA5 series are recommended for medical applications.
- 5 to 12 Watt Most of these converter series are available with single and dual output, while some have 2:1 or 4:1 wide input ranges. Built-in features include continuous short-circuit protection, over-voltage protection, fixed switching frequency, miniature packaging for tight spaces, six-sided shielding, or low output noise. Several series are useful for medical applications, including the TWA6/MHIA and the TWB6/MHIA5.
- 15 to 30 Watt This category includes more than 20 series of converters, most of which have single and dual output, a few with triple output. Features include fixed switching frequency, short-circuit or over-voltage protection, internal input fuses, six-sided metal shielding, epoxy encapsulation, and no minimum load requirements. The LWA15 series is ideal for medical applications, with several others recommended for the rail industry, like the DMWB30 series.
- 40 to 60 Watt Polytron carries ten series of converters in this category, several offering triple output models in addition to the single and dual. The LWB40 and DMWB40 series are perfect for railway applications.
- 75 to 200 Watt Fourteen series options in this wattage range, some of which are ideal for applications in the railway sector, including the HWB200 and the FWB150.
- 5 to 10 Amp Three types of non-isolated, point-of-load converters, two of which have input under-voltage protection
- 15 to 30 Amp Three more non-isolated, point-of-load converters with high efficiency.
Our MWB40/B2A Series of isolated 4:1 wide input range 40-watt single & dual-output DC-DC converters are housed in a miniature 2.0” x 2.0” x 0.4” package for space-constrained designs. High efficiency up to 89%, 1600 V dc isolation, remote ON/OFF control.
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Extra small SMD or DIP package
With available 3000 Vdc input to output isolation, our 1 watt 4:1 wide input DSB(H)1 series DC-DC converter features no minimum load requirement, continuous short circuit protection and an extra small SMD or DIP package.
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With continuous short circuit protection, our 2 watt 4:1 wide input DSB(H)2 series DC-DC converter features an extra small SMD or DIP package. 3000 Vdc input to output isolation available. Meets UL60950-1, EN60950-1 and IEC60950-1 safety standards.
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3 Watt, 4:1 wide input features continuous short circuit protection, no minimum load requirement and an extra small SMD or DIP package. 3000 Vdc input to output isolation available. Meets UL60950-1, EN60950-1 and IEC60950-1 safety standards.
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Extra wide input range (4.5-13.2V, 9-18V, 18-36V, 36-75V), wide temperature range (-40 to +105º C) and high efficiency up to 86 percent. Housed in a SIP 8 package, devices have no minimum load requirement and include remote ON/OFF, short cir. protection.
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Extra wide input range (4.5–18 V, 9–36 V and 18–75 V), wide temperature range (-40 to +105º C) and high efficiency up to 82 percent. Housed in a SIP 8 package, no minimum load requirement, remote ON/OFF, short circuit and undervoltage protection.
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Our 10 watt single and dual output DC-DC converter is epoxy encapsulated and features six-sided continuous metal shielding. With operating temperatures up to 85°C, this design has short circuit and overvoltage protection and input/output isolation.
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UL and CE-approved and epoxy-encapsulated, our 15 Watt single and dual output DC-DC converters features an operating temperature up to 85°C, input/output isolation, short circuit and over-voltage protection and six-sided continuous metal shielding.
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Good for railway applications, our 40 watt wide input range LWB40 series DC-DC converter features a low profile package, an operating temperature from -40 to 85°C and a minimum input/output isolation of 1600 Vdc.
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With a low profile package of 1.00" x 2.00" x 0.40", our 60 watt single and dual output DC-DC converter features six-sided continuous metal shielding, RoHS compliance and a minimum input/output isolation of 1600 Vdc. Safety-approved.
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With a miniature case of 2.0" x 2.0" x 0.4", our 40 watt single, dual and triple output DC-DC converter features over current protection, an on/off control and a six-sided shield. This design is ideal for telecom and networking applications.
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Dual-output, high efficiency up to 91%, low standby power, high reliability power, and remote ON/OFF control for energy savings. Built-in safeguards include over current, over voltage, short circuit and under voltage protections.
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Our 1.8 watt single output DC-DC converter features a 16-pin SMD package and 500 Vdc input/output isolation.
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With 80% efficiency, our 1 watt single and dual output DC-DC converter offers the options of 1000 Vdc or 3000 Vdc input/output isolation. The design also features 1-watt unregulated output power and a miniature single-inline package (SIP).
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Low cost single-inline package
Our low cost 1-2 watt single and dual output DC-DC converter has tight regulation and a miniature single-inline package.
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Regulated design, wide input voltage range. Our 2 watt single and dual DC-DC converter offers continuous short circuit protection and has low ripple and noise. This design also features an external on/off control and a SIP package of 0.86" x 0.36" x 0.44"
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Our 3 watt single and dual output DC-DC converter with a 4:1 input voltage range provides continuous short circuit protection, a SIP package of 0.86" x 0.36" x 0.44" and 82% efficiency. This design also has an external on/off control and is RoHS compliant
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With a 4:1 ultra wide input range, our SWB9 series of DC-DC converters feature a miniature SIP package of 0.86 x 0.36 x 0.44 inches, fixed switching frequency and input/output isolation up to 1600 Vdc. Also features continuous short circuit protection.
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High efficiency up to 83%, low ripple and noise and 3,000-Vdc input to output isolation. Miniature SIP package of 0.86 x 0.36 x 0.44 inches, ON/OFF control, low standby power and short circuit and overcurrent protection. Meets EN50155 and EN45545-2.
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High efficiency up to 83%, low ripple and noise and 3,000-Vdc input to output isolation. Miniature SIP package of 0.86 x 0.36 x 0.44 inches, ON/OFF control, low standby power and short circuit and overcurrent protection. Meets EN50155 and EN45545-2.
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Compact and efficient design
Our low cost 0.75 watt single and dual output DC-DC converter is highly efficient with 500 Vdc input/output isolation and a miniature single-inline package.
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High isolation voltage
Our highly efficient 1 watt single output DC-DC converter is housed in a miniature single-inline package, and offers a high isolation voltage.
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Single- and dual- unregulated-output, 1-watt DC-DC converters designed for medical applications. Output voltages up to ±15 V and output currents up to 200 mA, high efficiency up to 81%, 4.2 KV AC/6 KV DC isolation.EN60601-1, ANSI/AAMI ES60601-1.
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Single- and dual- unregulated-output, 2-watt DC-DC converters designed for medical applications. Output voltages up to ±15 V and output currents up to 400 mA, high efficiency up to 84%, 4.2 KV AC/6 KV DC isolation. EN60601-1, ANSI/AAMI ES60601-1.
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With a high performance pi input filter, our highly efficient and reliable 3 watt single and dual DC-DC converter has highly regulated isolated outputs, 100% burn-in, and no external components. Isolated, Regulated 24 Pin DIP Package.
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With no external components, our 3 watt single output model of DC-DC converter has short circuit protection, a 2:1 wide input range and new 3.3 Vdc outputs. Dual output models are also available. Regulated 24 Pin DIP Package. Efficiency to 76% @ FL.
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Our 3 watt 2:1 wide input TWA3/MHIA DC-DC converter features a clearance & creepage distance of 8 mm/2 MOPP, EMI class A filter & miniature DIP package. Also features reinforced insulation & operating temperatures between -40 & 105°C with derating.
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Our 8 watt single and dual output DC-DC converter features a five-sided EMI shield and no derating up to 70°C. It has an efficiency of 80% and a minimum input/output isolation of 1500 Vdc.
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With an industry standard package and pinout, our 3 watt single and dual output DC-DC converter features 4:1 wide input range, 500 Vdc input/output isolation and no external components.
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24-Pin DIP package, triple tested and FCC approved
1.8 watt single output DC-DC converter meets IEEE 802.3 standards and is FCC Class B-approved. This triple tested design also features a 24 pin DIP package, short circuit protection and 100% burn-in.
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