48V 13.8V DC DC Converter Step Telecom

Product Overview

Our 48V to 13.8V DC DC Step Down Converter is a premium non-isolated switch-mode power solution, purpose-built to convert 36V/48V nominal DC input (30-60VDC ultra-wide input range) into a precision-regulated 13.8VDC stable output. Optimized for negative ground systems, this series spans output current ratings from 5A to 100A, delivering 69W to 1380W of rated power to address strict power conversion demands of telecom, industrial, and renewable energy applications. Boasting peak efficiency up to 97%, this 30-60VDC to 13.8VDC Non-isolated DC Converter minimizes energy loss and ensures consistent performance in long-term continuous operation, making it the go-to choice for mission-critical power infrastructure projects.

Technical Parameters

Standard Model Specifications

Model No.	Input voltage	Output voltage	Output current	Rated power	Efficiency	Size
SDJ-48S13R805	30-60VDC	13.8VDC	5 Amps	69W	92.20%	64*57*22mm
SDJ-48S13R810Z	30-60VDC	13.8VDC	10 Amps	138W	93.70%	64*57*22mm
SDJ-48S13R815	30-60VDC	13.8VDC	15 Amps	207W	95.80%	74*74*32mm
SDJ-48S13R820	30-60VDC	13.8VDC	20 Amps	276W	95%	74*74*32mm
SDJ-48S13R830	30-60VDC	13.8VDC	30 Amps	414W	95.30%	100*80*39mm
SDJ-48S13R840	30-60VDC	13.8VDC	40 Amps	552W	96.30%	100*80*39mm
SDJ-48S13R850M	30-60VDC	13.8VDC	50 Amps	690W	97%	100*80*36mm
SDJ-48S13R860M	30-60VDC	13.8VDC	60 Amps	828W	96.50%	100*80*36mm
SDJ-48S13R880	30-60VDC	13.8VDC	80 Amps	1104W	96%	140*120*42.5mm
SDJ-48S13R8100	30-60VDC	13.8VDC	100 Amps	1380W	97%	140*120*42.5mm

More details,please see datasheet.

Core Advantages for Our Business Partners

Industry-Leading Efficiency for 48V Power Systems

Our 48V 13.8V Step Down DC Power Converter achieves up to 97% peak efficiency, drastically reducing energy waste and thermal buildup in 48V power infrastructure. This lowers long-term operating costs, extends equipment lifespan, and reduces cooling requirements, delivering measurable cost savings for our business partners in bulk deployment projects.

IP68 Sealed Design for Extreme Environmental Resistance

With an IP68 waterproof and dustproof rating, this converter is fully protected against moisture, dust, vibration, and harsh weather. It maintains stable performance in both indoor telecom cabinets and outdoor remote installations, eliminating unplanned downtime and replacement costs for our commercial partners.

Robust Protection for Mission-Critical Power Supply

Integrated short circuit, overload, over temperature, and over voltage protection mechanisms safeguard both the converter and connected equipment. Every unit undergoes rigorous 100% full load burn-in testing under extreme temperature fluctuations, ensuring uninterrupted power supply for mission-critical telecom and industrial applications.

Scalable Specifications for Diverse Commercial Projects

We offer 10 standard current ratings from 5A to 100A, with fully customizable voltage, current, housing, and connector solutions for bulk orders. This scalability enables our system integrator and trade clients to adapt the product to unique project requirements without prohibitive upfront costs.

Target Industries & Applications

This IP68 48V 13.8V DC Converter for Telecom is engineered for industries demanding high-reliability power conversion: telecommunications infrastructure (5G base stations, remote communication sites, backup power systems), renewable energy (off-grid solar systems, wind power auxiliary power, energy storage conversion), industrial automation (heavy-duty equipment control, factory automation), and transportation & marine (railway auxiliary power, shipboard communication systems).

Quality Assurance & Compliance

All our 48V to 13.8V DC DC Converters are designed and manufactured to meet strict CE and RoHS standards. We use high-reliability NCC and NICHICON automotive-grade internal capacitors to ensure stable performance in fluctuating voltage and extreme temperature environments. Every unit passes 100% full load burn-in testing before shipment, with a 1-3 year warranty for all bulk commercial orders, giving our business partners full confidence in our products.

Packaging, Shipping & Order Terms

Packaging: Anti-static, moisture-proof, shock-resistant industrial packaging; custom branded packaging available for bulk distribution orders

Shipping: Worldwide shipping via sea freight, air cargo, and international express; support for DDP, DDU, and EXW terms to accommodate diverse import needs of our trade clients

Order Terms: Flexible minimum order quantities with sample orders available for testing; standard bulk lead time of 10-15 working days; full OEM/ODM support for custom projects

FAQ

Can this 48V to 13.8V DC converter work with 36V nominal power systems?

Yes. It supports an ultra-wide 30-60VDC input range, making it fully compatible with both 36V and 48V nominal power systems widely used in telecom and industrial applications.

What protection features does this converter offer for telecom base station applications?

It is equipped with comprehensive short circuit, overload, over temperature, and over voltage protection, ensuring uninterrupted power supply even in abnormal operating conditions, critical for telecom infrastructure stability.

Get Your Custom Quotation

Whether you are sourcing bulk units for telecom infrastructure deployment, industrial system integration, or commercial distribution, we deliver tailored solutions to match your needs. Contact us today to receive a free custom quotation for our 48V to 13.8V DC DC Step Down Converter, along with free sample testing support and end-to-end technical guidance from our professional team.

{"json":"[{\"downloadUrl\":\"//rjrorwxhikmrlm5p-static.micyjz.com/SDJ-48S13R805-aidlkBpjKlllmSRnlokpmjkip.pdf?dp=1\",\"encodeFileId\":\"rtAKBGHNTusO\",\"fileId\":16739534,\"fileName\":\"SDJ-48S13R805.pdf\",\"fileType\":\"pdf\",\"photoUrlNormal\":\"//jlrorwxhikmrlm5p-static.micyjz.com/static/assets/widget/images/downloadNew/pdf.svg\",\"pname\":\"SDJ-48S13R805.pdf\",\"name\":\"SDJ-48S13R805.pdf\"},{\"downloadUrl\":\"//ikrorwxhikmrlm5p-static.micyjz.com/SDJ-48S13R810Z-aidllBpjKlllmSRnlokpmkkip.pdf?dp=1\",\"encodeFileId\":\"sEpALQRiTkjt\",\"fileId\":16739544,\"fileName\":\"SDJ-48S13R810Z.pdf\",\"fileType\":\"pdf\",\"photoUrlNormal\":\"//rjrorwxhikmrlm5p-static.micyjz.com/static/assets/widget/images/downloadNew/pdf.svg\",\"pname\":\"SDJ-48S13R810Z.pdf\",\"name\":\"SDJ-48S13R810Z.pdf\"},{\"downloadUrl\":\"//jlrorwxhikmrlm5p-static.micyjz.com/SDJ-48S13R815-aidlqBpjKlllmSRnlokpmokip.pdf?dp=1\",\"encodeFileId\":\"rCApLlwDTuPt\",\"fileId\":16739554,\"fileName\":\"SDJ-48S13R815.pdf\",\"fileType\":\"pdf\",\"photoUrlNormal\":\"//ikrorwxhikmrlm5p-static.micyjz.com/static/assets/widget/images/downloadNew/pdf.svg\",\"pname\":\"SDJ-48S13R815.pdf\",\"name\":\"SDJ-48S13R815.pdf\"},{\"downloadUrl\":\"//rjrorwxhikmrlm5p-static.micyjz.com/SDJ-48S13R820-aidlrBpjKlllmSRnlokpmplim.pdf?dp=1\",\"encodeFileId\":\"ympAVbRYealO\",\"fileId\":16739564,\"fileName\":\"SDJ-48S13R820.pdf\",\"fileType\":\"pdf\",\"photoUrlNormal\":\"//jlrorwxhikmrlm5p-static.micyjz.com/static/assets/widget/images/downloadNew/pdf.svg\",\"pname\":\"SDJ-48S13R820.pdf\",\"name\":\"SDJ-48S13R820.pdf\"},{\"downloadUrl\":\"//ikrorwxhikmrlm5p-static.micyjz.com/SDJ-48S13R830-aidllBpjKlllmSRnlokpmroip.pdf?dp=1\",\"encodeFileId\":\"wPKAVvwiTkRZ\",\"fileId\":16739574,\"fileName\":\"SDJ-48S13R830.pdf\",\"fileType\":\"pdf\",\"photoUrlNormal\":\"//rjrorwxhikmrlm5p-static.micyjz.com/static/assets/widget/images/downloadNew/pdf.svg\",\"pname\":\"SDJ-48S13R830.pdf\",\"name\":\"SDJ-48S13R830.pdf\"},{\"downloadUrl\":\"//jlrorwxhikmrlm5p-static.micyjz.com/SDJ-48S13R840-aidlqBpjKlllmSRnlokpmkoip.pdf?dp=1\",\"encodeFileId\":\"zvUpgbRNJanZ\",\"fileId\":16739584,\"fileName\":\"SDJ-48S13R840.pdf\",\"fileType\":\"pdf\",\"photoUrlNormal\":\"//ikrorwxhikmrlm5p-static.micyjz.com/static/assets/widget/images/downloadNew/pdf.svg\",\"pname\":\"SDJ-48S13R840.pdf\",\"name\":\"SDJ-48S13R840.pdf\"},{\"downloadUrl\":\"//rjrorwxhikmrlm5p-static.micyjz.com/SDJ-48S13R850M-aidlqBpjKlllmSRnlqklkjoiq.pdf?dp=1\",\"encodeFileId\":\"rrpfLlmvZtIO\",\"fileId\":16764484,\"fileName\":\"SDJ-48S13R850M.pdf\",\"fileType\":\"pdf\",\"photoUrlNormal\":\"//jlrorwxhikmrlm5p-static.micyjz.com/static/assets/widget/images/downloadNew/pdf.svg\",\"pname\":\"SDJ-48S13R850M.pdf\",\"name\":\"SDJ-48S13R850M.pdf\"},{\"downloadUrl\":\"//ikrorwxhikmrlm5p-static.micyjz.com/SDJ-48S13R860M-aidlrBpjKlllmSRnlokpmlpim.pdf?dp=1\",\"encodeFileId\":\"ueApqlciJvfZ\",\"fileId\":16739604,\"fileName\":\"SDJ-48S13R860M.pdf\",\"fileType\":\"pdf\",\"photoUrlNormal\":\"//rjrorwxhikmrlm5p-static.micyjz.com/static/assets/widget/images/downloadNew/pdf.svg\",\"pname\":\"SDJ-48S13R860M.pdf\",\"name\":\"SDJ-48S13R860M.pdf\"},{\"downloadUrl\":\"//jlrorwxhikmrlm5p-static.micyjz.com/SDJ-48S13R8100-aidlrBpjKlllmSRnlokmmriip.pdf?dp=1\",\"encodeFileId\":\"pDfABlcieQgO\",\"fileId\":16739614,\"fileName\":\"SDJ-48S13R8100.pdf\",\"fileType\":\"pdf\",\"photoUrlNormal\":\"//ikrorwxhikmrlm5p-static.micyjz.com/static/assets/widget/images/downloadNew/pdf.svg\",\"pname\":\"SDJ-48S13R8100.pdf\",\"name\":\"SDJ-48S13R8100.pdf\"}]","type":"1"}