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Samlex SDC-15 12A 24VDC-12VDC DC-DC Step Down Converter

Listed Price:
083 - 381109
4.00 LBS
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Product Overview

Samlex SDC-15 12A 24VDC-12VDC DC-DC Step Down Converter

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.


Main Features:-

  Advanced switch mode design,
  Mount in almost any location,
  Compact and light weight,
  Reverse polarity protection,
  High efficiency,
  Cycle by cycle current limiting circuit,
  Over voltage protection,
  Short circuit protection,

Before you buy be aware of the return policy conditions and read the manufacturer warranty.

General Specifications:-


Input Voltage

Output Voltage



Fuse Rating



20-35 VDC

13.8 VDC
+/- 1%

5" x 8" x 2.5"



2.5 lbs


  Earth moving equipment,
  Heavy trucks,
  Marine vehicles,
  CB radios,
  12 Volt lighting systems,
  AM / FM sound systems,


[ Tech Support ]  Product Video(s) & Knowledge Base Information
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Can the SDC-series dc-dc converter be used directly to charge batteries?:-


  The SDC-series dc-dc converter cannot be directly used to charge batteries as the battery will feed back into SDC-series dc-dc converter if the input to SDC-series converter is removed or if there is no output from SDC-series dc-dc converter due to any reason. This will damage SDC-series dc-dc converter. In addition, if the 12V battery is deeply discharged, it will send SDC-series converter into current limit for extended period of time and will lead to premature failure. ,


How can the SDC-series dc-dc converter be modified to work as a battery charger?:-


  A Scotty diode (rated at 30 V, 30 A) in series with the positive output of SDC-series converter will eliminate feedback into SDC-series dc-dc converter. To compensate for the drop across the Scotty diode (0.4V to 0.5 V), the output voltage of SDC-series dc-dc converter should be increased to around 14V to provide a float voltage of 13.5 V for charging a 12 V battery (The output voltage of SDC-series converter can be adjusted using the internal output voltage control potentiometer (Call Tech Support for exact part reference). Premature failure can also be avoided by reducing the current limit with the help of internal potentiometer (Call Tech Support for exact part reference).,


By displaying product related videos on our site we do comply to the YouTube API Terms of Service. We are not liable for the technical content of the video material we present herein despite we do check for general conformity prior posting. The video material is for educational purpose only!

Product Related Documents

By engaging the links above you will download a copy of the documents on your machine. The documents must be used for their informational purpose only. We regularly update the product documentation based on the last release from the manufacturer.

Product Warranty Information

Samlex America, Inc. (the Warrantor ) warrants the product to be free from defects in workmanship and materials under normal use and service. This warranty is in effect for 2 year from the date of purchase by the user (the Purchaser ).

30 Days Return CEB Return Policy - Important: Condition apply: like original packing, original sealed, never connected to load or mounted on a support or installed in an enclosure.

Product Returns Policy (extras)

From CEB Return Policy Extras

Most of unused products can be returned back to us for a replacement or refund within 30 days of receipt. All returned items must be in new condition with all original packaging, paperwork and accessories supplied. All returns have to be send back via a traceable method such as Fed Ex, DHL, Purolator and USPS or similar. Return freight and original shipping are non-refundable.

All special orders, electrical appliances, appliances of any nature, items returned without original packaging or packing materials, and items sent directly from the manufacturer may be subject to a restocking fee of 10-25%. Please call us before you perform your return in order for us to issue an RMA prior any shipping is undergoing.

Please include your order number along with RMA issued by one of our staff. Without an order number and an RMA number, it will be very difficult to trace the order for the returned merchandise associated with and all the process will drag for weeks or month to come. In order to complete the return procedures please fill in the forms and follow our instructions.

All returns must be in their ORIGINAL PACKAGING, in a resalable condition. Any packaging materials, CDs, software, accessories, manuals, warranty cards and documentation originally sent must be included in the package. In the event that a package is returned and does not meet the guidelines we’ve listed above, CleanEnergyBrands reserves the right not to honour the return.

Return Merchandise Authorization(RMA):-

In order to process our customers’ returns as quickly and successfully as possible, we require ALL returns to be accompanied by an RMA so please be sure to contacting us before returning any items. To obtain your RMA and any additional return info you may need, please call our friendly, ready-to-help support team toll-free at 1.800.339.9171 or email us at returns@cleanenergybrands.com

Because we want your return experience to be as hassle-free as possible, we strongly recommend that you fully insure your return shipment so that you’re well protected in the event that the package is lost or damaged in transit. UPS & FedEx provide traceable shipments, complete with a proof-of-delivery feature that guarantees that your package is delivered to the intended location. We urge you to use a carrier that has both tracking and proof-of-delivery capabilities and that you retain that tracking number. Please be advised that postage charges are non-refundable, and that Clean Energy Brands is not responsible for any packages lost or damaged during transit. This includes packages sent via USPS to an international or overseas destination.

Defective Product; Incorrect Product:-

Please call for an RMA so we will arrange for a return for the defective/incorrect item and replace that at no cost to you. The item must include its original packaging and as-new in pristin conditions with the packing slip, all warranty cards, and accessories included.

For more information consult "Returns Refunds" policy. Follow this link!

30 Days Return CEB Return Policy - Important: Condition apply: like original packing, original sealed, never connected to load or mounted on a support or installed in an enclosure.

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