Description
12A Non-Isolated Step-Down 24VDC-12VDC Converter – Heavy Duty Applications
This high efficiency switch-mode step-down DC-DC converter converts an input voltage of 24 VDC nominal (range 20 VDC to 35 VDC) to a highly regulated output voltage of 12 VDC nominal (13.8 VDC) at 12 Amps. The SDC-15 DC-DC converter is non-isolated (no galvanic isolation between input and output) and meant for use in negative ground systems. Features include overvoltage/short-circuit protection, temperature compensated current limit, output-side overvoltage protection, input-side overvoltage/ transient protection and input-side reverse polarity protection. The SDC-15 DC-DC converter is designed for heavy duty applications.
Features:
- Advanced switchmode design
- Mount in almost any location
- Compact and light weight
- Reverse polarity protection
- High efficiency
- Cycle by cycle current limiting circuit
- Overvoltage protection
- Short circuit protection
Specifications:
- Input: 20-35 VDC
- Output: 13.8 VDC
- Amps: 12 Amps
- Weight: 2 (lbs)
- Weight: 0.9 (kg)
- Dimensions: 7.75 x 5 x 2.5 (in)
- Dimensions: 19.7 x 12.7 x 6.4 (cm)
- Warranty: 2 Year Limited
Applications:
- Earth moving equipment
- Heavy trucks
- Buses
- Marine vehicles
- CB radios
- 12 Volt lighting systems
- AM/FM sound systems
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Owner’s Manual (pdf)
Brochure (pdf)

![Samlex 100W Fully Isolated DC-DC Converter – 8A – 9-18V Input – 12.5V Output [IDC-100A-12]](https://www.apartship.com/wp-content/uploads/2025/4/1745803666/samlex-100w-fully-isolated-dc-dc-converter-8a-9-18v-input-12-5v-output-idc-100a-12-1745803670.webp)
![Analytic Systems Waterproof IP66 DC Converter 10A, 12V Out 20-80V In, Ruggedized [VCH10W-12]](https://www.apartship.com/wp-content/uploads/2025/4/1745804243/analytic-systems-waterproof-ip66-dc-converter-10a-12v-out-20-80v-in-ruggedized-vch10w-12-1745804247.webp)
![Analytic Systems Waterproof IP66 DC Battery Charger 10A, 12V Out, 20-80V In, Ruggedized [BCH10W-12]](https://www.apartship.com/wp-content/uploads/2025/4/1745804243/analytic-systems-waterproof-ip66-dc-battery-charger-10a-12v-out-20-80v-in-ruggedized-bch10w-12-1745804247.webp)
![Analytic Systems Waterproof IP66 DC Converter 10A, 24V Out, 30-80V In, Ruggedized [VCH10W-24]](https://www.apartship.com/wp-content/uploads/2025/4/1745804243/analytic-systems-waterproof-ip66-dc-converter-10a-24v-out-30-80v-in-ruggedized-vch10w-24-1745804247.webp)