Power Converter | Transformer | Magnetic Component

Trusted Power Solutions Since 1999

YDS (Yuan Dean) is a globally recognized manufacturer of electronic components, specializing in power converters, transformers, and magnetic components. With over 25 years of experience, we serve industries including medical, railway, telecommunications, and industrial automation.

Our products are ISO 9001, ISO 14001, and IATF16949 certified, ensuring the highest standards in quality and environmental management. We operate an in-house EMC and reliability test lab to guarantee compliance with global safety and performance standards.

25+

Years of Experience

25

Global Languages

Our Product Range

High-performance power converters, transformers, and magnetic components engineered for reliability, efficiency, and compliance across critical industries.

Ultra-Wide 8:1 Input DC-DC Converters

High-efficiency isolated converters with 8:1 input range, ideal for industrial and transportation applications.

• Input: 9–72VDC
• Output: 3.3V to 48V
• Power: 5–60W
• UL, CE, CB Certified

AC-DC Converters (Open Frame)

Compact, high-efficiency AC-DC power supplies for medical and industrial systems.

• Input: 85–264VAC
• Output: 12V, 24V, 48V
• Power: 15–300W
• Medical Safety Certified

RJ45 with Magnetics

Integrated Ethernet jacks with built-in magnetics for 10/100/1000Base-T and PoE applications.

• 1x1, 1xN, 2xN configurations
• Supports PoE, PoE+, UPoE
• Shielded & unshielded options
• RoHS compliant

LAN Filter Products

High-performance Ethernet filters for 10/100/1000/2.5G/5G/10G Base-T networks.

• 10 Mbps to 10 Gbps support
• Low insertion loss
• High common-mode rejection
• PoE-compatible designs

High Frequency Transformers

Custom and standard HF transformers for switch-mode power supplies and PoE systems.

• Frequency range: 20kHz–1MHz
• Isolation up to 4kV
• Low leakage inductance
• Medical & railway grade

DC-DC Converters for Medical

Medical-grade isolated DC-DC converters with reinforced insulation and low leakage current.

• Meets IEC 60601-1
• 2x MOPP isolation
• Low EMI & leakage
• Compact SMD/SIP packages

Power Inductors & Delay Lines

High-current power inductors and precision delay lines for power and signal integrity.

• Saturation current up to 30A
• Low DCR & high Q
• Custom winding options
• AEC-Q200 compliant

Telecom Interface Transformers

ISDN, T1/E1, T3/DS3 interface transformers for telecom and data communication systems.

• Impedance matching
• High common-mode rejection
• Low distortion
• CE & FCC compliant

View Full Product Catalog

Why Choose YDS?

Engineered for reliability, efficiency, and global compliance.

Certified Quality

ISO 9001, ISO 14001, IATF16949 certified with in-house EMC/EMI testing lab.

High Efficiency

Up to 95% efficiency in DC-DC and AC-DC converters for energy savings.

Industry-Specific

Solutions tailored for medical, railway, telecom, and industrial applications.

Custom Solutions

Full customization and engineering support for unique application needs.

Key Applications

Our components power critical systems across industries.

Medical Equipment

Power solutions for patient monitors, imaging systems, and diagnostic devices with reinforced insulation and low leakage current.

Railway Systems

Rail-certified DC-DC converters and magnetics for signaling, onboard systems, and trackside equipment.

PoE & Networking

RJ45 jacks with magnetics, LAN filters, and power converters for PoE switches, IP cameras, and VoIP systems.

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