RSN Exhibitor – Luso Electronics adds to its Broad Range of DC / DC Converters

20W DC/DC in compact 1″ square package with “Hold Up” functionality

The RCD20U is a DC/DC converter series that provides high performance and high reliability for railway and industrial applications. It comes in a compact 1″x1″ industrial standard package and delivers up to 20W output power. These converters feature an 8:1 or 12:1 ultra-wide input voltage range of 9-75VDC and 14-160VDC which simplify the design of the power stage of a system. Using just one DC/DC model converter for different supply voltages (24, 28, 36, 48, 72, 96, 110VDC) in different regions avoids multiple input voltage models in the warehouse.

The patented enhanced Hold-Up Function is designed to simplify the design of supply interruption and changeover as per EN 50155. Generally, to keep the device functioning during the supply voltage interruption or changeover, capacitors are required to be installed at the input terminals. The capacitance and rated voltage of the capacitors vary according to the supply voltage in use. The BUS pin of RCD20U provides a stable and fixed charging voltage which allows the usage of just one Hold-Up capacitor for any input voltages and in addition, reduces the in-rush current at the start-up phase.

This series includes single output and dual output models with 5, 5.1, 12, 24, ±12, ±15VDC. It has various self-protection functions such as: over-current protection, output short-circuit protection, output over-voltage protection, adjustable input under-voltage lockout and over-temperature protection. By installing a heatsink on the module these converters achieve the operating temperature class OT4 and the extended operating temperatures ST1, as per EN 50155 standards.


  • 20W Output Power in a 1″x1″ Industrial Standard Package
  • 8:1 & 12:1 Input Voltage Range from 9-75V and 14-160V
  •  Patented Enhanced Hold-up Function for Supply Interruption and Changeover
  • Adjustable UVLO
  • Operating Temperature: -40°C to +105°C
  • 3000VDC Input-Output Isolation
  • Operating Altitude: up to 5000m
  • Approved to EN 50155 | EN 45545-2 | IEC/EN/UL 62368-1 Standards
  • 3-Year Product Warranty

This series is certified according to IEC/EN/UL 62368-1, EN 50155 and EN 45545-2 standards (pending). Additionally, shock and vibration levels are compliant with EN 61373 and MIL-STD-810F. With an operating altitude of up to 5000 meters, a wide operating ambient temperature of -40°C to +105°C and a 12:1 input voltage range, makes these converters entirely suitable for any ruggedized, high-reliability applications such as rolling stocks and transportation in harsh industrial environments.

Samples are available now. Our product specialists are on hand to assist with product selection and guide you through the design cycle. We offer technical and commercial support.

Please contact us to arrange samples for evaluation or for more information Click the Link Below to see the product page.

About Luso Electronics

Luso Electronic Products Ltd is an independent, privately owned company established in 1967 and is headquartered in the City of London.

The company has three divisions.

The Distribution Division represents manufacturers of power supplies and associated electronic components.

The Microwave Division is located in Luton and installs microwave communications systems worldwide with all manufacturing done in house.

The Services Division supports supply chain management, distribution management, spare parts management, maintenance and repair across the EMEA and APAC regions.

Luso supports customers across the world, throughout Europe, North America and Asia.

Luso Electronic Products Ltd is fully certified to ISO 9001:2015, ISO14001:2015 &ISO45001:2018.

More information is available at

Andy Eden
Internal Sales Manager
Franchise Distribution Division | Tel: +44 7500 333 523 | Fax:+44 2076 387 674 |