Power Supplies for a Smarter World

RECOM’s energy-efficient and low-cost AC/DC and DC/DC converters live up to the Industry 4.0 and IoT challenges and offer high efficiency at both light load and full load.

The Internet of Things (IoT) covers many separate concepts, but they share the following common features: distributed intelligence, multiple interconnected sensors/actuators and decentralized control. In practice, IoT means that certain spaces, environments or objects can be made "smart" by incorporating sensors that can communicate to make them behave intelligently. Not every power supply is suitable for an IoT application. They must be space-saving, reliable, highly efficient at both low load and full load, and above all they must be affordable as they will be as common as the sensors, processors and actuators they supply.

For all IoT requirements, RECOM encompasses a variety of products that offer high efficiency and low standby power consumption such as in AC/DC power supplies that can be used in a smart office with hundreds of intelligent sensor nodes and low cost isolated DC/DC power supplies for multiple input channels that utilize a very low input voltage boost converter to generate a reliable power supply from a single battery cell.

Features

  • Low profile AC/DC and DC/DC converters
  • Low cost
  • Low standby power consumption
  • Wide input voltage range
  • Wide operating temperature range
  • Industrial and household certifications
  • 3-year warranty

Applications

  • Smart office & smart building
  • Home automation
  • Single-cell powered IoT application
  • Microprocessor power supply
  • WLAN/Bluetooth modules
  • LoRaWAN modules

 

  • RAC Series
  • RAC3.5-K/277 Series
  • RAC05-K/277
  • RAC05-K/480
  • R1SX Series
  • R-78S Series
  • R-78 Eval Board

RAC Series - Compact & Low Cost AC/DC Converters (3-20 W)

RECOM RAC Series

The RAC AC/DC converter series are low power supply modules ideally suited to IoT installations. They are compact, energy-efficient and have low standby power requirements, yet can deliver up to 175% peak load. For global compatibility, they work from all standard AC power supply voltages and are fully certified to worldwide standards, including the 55022 for EMC as well as the 60355-1 household standards (RACxx-GA). The RAC05-K is a low cost 5 W AC/DC converter in the tiny PCB size of 1"x1", offering an impressive power density of 7.7 W per in3. The RAC10-K low cost AC/DC converter series in a tiny 2"x1" package offers excellent efficiency over a wide load range, which makes them ideal for energy saving solutions in IoT.

 

Features

  • 3-20 W converters for versatile installation options
  • Low standby power consumption: down to 35 mW (below ErP directive limits)
  • Wide input voltage range (80-305 VAC)
  • UL/IEC/EN60950-1 certified
  • IEC/EN60335-1 certified
  • Fully protected: OVP, OLP, SCP, OTP, UVLO
  • 3-year warranty

Applications

  • Smart homes and smart offices
  • Building automation
  • Security & communication systems
  • Door access controls
  • Remote sensors and actuators
  • Climate controls
  • Touchscreen interfaces
  • Garage door-openers

 

Power Range View Details
3-4 Watt View Details
5 Watt View Details
10 Watt View Details
15 Watt View Details
20 Watt View Details

RAC3.5-K/277 Series AC/DC Modules

RECOM's 3.5 W AC/DC converters are able to accept input voltages from 85 VAC up to 277 VAC

RAC3.5-K/277 Series

The RAC3.5-K/277 is yet another addition to RECOM’s cost-effective, high-quality, and compact RAC series. This 3.5 W power supply series was developed with enhanced performance capabilities suitable for industrial applications. It is able to accept input voltages of 85 VAC up to 277 VAC and offers an impressive operating temperature range of -40°C to +85°C. The RAC3.5-K/277 is able to provide high efficiency over the entire load range and the standby mode has been optimized to reduce power consumption.

As with all the other products in the RAC family, the RAC3.5-K/277 is compact in size with only a 1.05” x 1.25” footprint. The series is also overvoltage and overcurrent protected, as well as EMC compliant to Class B levels reaching a minimum 6 dB margin on both radiated and conducted readings without requiring external components. It is internationally certified for industrial, domestic, and ITE.

Features

  • Wide input range 85 VAC to 305 VAC
  • Standby mode optimized (Ecodesign Lot 6)
  • High efficiency over the entire load range
  • Operating temperature range: -40°C up to +85°C
  • Overvoltage and overcurrent protected
  • EMC compliant without external components

Applications

  • IoT
  • Industry 4.0
  • Industrial electrical equipment
  • Smart house/building
  • Test and measurement
Part Number Description  
RAC3.5-05SK/277 3.5W AC/DC-CONVERTER 'POWERLINE' View Details
RAC3.5-24SK/277 3.5W AC/DC-CONVERTER 'POWERLINE' View Details
RAC3.5-3.3SK/277 3.5W AC/DC-CONVERTER 'POWERLINE' View Details
RAC3.5-15SK/277 3.5W AC/DC-CONVERTER 'POWERLINE' View Details
RAC3.5-12SK/277 3.5W AC/DC-CONVERTER 'POWERLINE' View Details

RAC05-K/277 Series AC/DC Converter

RECOM's 5W AC/DC power supplies are able to accept input voltages from 85 VAC up to 277 VAC

RAC05-K/277 Series

The RAC05-K/277 is a 5W AC/DC compact module that were designed for extended input lines and extreme temperatures from -40°C up to +85°C. It is built to operate with mains voltages from 85 VAC up to 277 VAC, and are EMC compliant to EN55022 class “B” without the need for external components. These converters feature fully protected outputs and international safety certifications for industrial, domestic, and ITE as well as global household standards.

Features

  • Wide input ranges
  • Standby mode optimized (eco-design Lot 6)
  • High efficiency over the entire load range
  • Operating temperature range: -40°C up to +85°C
  • Overvoltage and overcurrent protected
  • EMC compliant without external components
  • Encapsulated module with pins or wired

Applications

  • IoT
  • IIoT
  • Industrial electrical equipment
  • Smart house/building
  • Test and measurement
Part Number Description  
RAC05-3.3SK/277 AC/DC CONVERTER 3.3V 5W View Details
RAC05-05SK/277 AC/DC CONVERTER 5V 5W View Details
RAC05-12SK/277 AC/DC CONVERTER 12V 5W View Details
RAC05-15SK/277 AC/DC CONVERTER 15V 5W View Details
RAC0524SK/277 AC/DC CONVERTER 24V 5W View Details

RAC05-K/480 AC/DC Converters

RECOM’s 5 W AC/DC converters for industrial input voltages of up to 480 VAC

RAC05-K/480 Series

The RAC05-K/480 is a 5W AC/DC module designed for harsh industrial and outdoor mains conditions. These PCB-mount converters are rated to OVC III conditions from 100 VAC to 480 VAC nominal input lines with phase-to-phase or single-phase operation without any external components needed. The modules support an operating temperature range from -40°C to +80°C and come with fully protected outputs for EMC class A and B compliance. They are international safety certified for industrial, domestic, and ITE as well as household standards.

Features

  • Ultra-wide input range 85 VAC to 528 VAC
  • OVC III input rating without additional fuses
  • Operating temperature range: -40°C to +80°C
  • Overvoltage and overcurrent protected
  • EMC compliant without external components
  • No load power consumption <0.5 W

Applications

  • Industry 4.0
  • IoT
  • Smart process automation
  • Smart grid
  • Renewable energy
  • Smart metering
Part Number Description  
RAC05-SK/480 AC/DC CONVERTER 5V 5W View Details
RAC05-12SK/480 AC/DC CONVERTER 12V 5W View Details

R1SX Thumbnail-Sized DC/DC Converters

RECOM's low cost, 1 W DC/DC converters cover dual-output voltage applications

R1SX Series

RECOM’s R1SX series are high-quality open-frame SMD converters providing stable performance at a very competitive price. There is no minimum load required, and the quiescent consumption is less than 150 mW.

The R1SX has nearly 20% lower profile than the industry standard due to the unique inverted transformer design. The R1SX are available with 3.3 V or 5 V inputs and offer a single unregulated 3.3 V or 5 V output. Additionally, the R1SX converters can drive high capacitive loads up to 2,200 µF, which is 40 times higher than the competition. The R1SX series are fully certified to IEC/UL/EN62368-1 and UL60950-1.

The R1SX is fully certified to IEC/UL/EN62368-1 and UL60950-1.

Features

  • Handles high capacitive loads (2,200 µF)
  • 1 kV or 3 kVDC galvanic isolation ideal for communication protocols (e.g., CAN bus)
  • Three-year warranty
  • Wide operating temperature of -40°C to +100°C at full load
  • IEC/UL/EN62368-1 and UL60950-1 certified

Applications

  • Industrial automation control equipment
  • Isolated operational amplifiers
  • Isolating data transfer lines
  • Isolated DACs
  • Sensor applications
Part Number Description  
R1SX-3.33.3-R DC DC CONVERTER 3.3V 1W View Details
R1SX-3.305-R DC DC CONVERTER 5V 1W View Details
R1SX-0505-R DC DC CONVERTER 5V 1W View Details
R1SX-3.305/H-R DC DC CONVERTER 5V View Details
R1SX-0505/H-R DC DC CONVERTER 5V View Details

R-78S Series - Single Cell Battery Boost Switching Regulator

RECOM R-78S

Due to its wide input voltage range down to 0.65 V, high efficiency and low stand-by losses, the R-78S not only boosts the output voltage of a single cell, but also maintains a stable, regulated output until the battery is almost completely discharged. Based on the simple plug-and-play concept of the standard R-78 buck regulator, the R-78S boost regulator is able to provide a stable 1.8, 3.3 or 3.6 VDC output from any standard 1.5 V battery cell or lower voltage energy harvester output. Battery-powered applications such as microcontrollers, WLAN / Bluetooth / LoRa modules or IoT systems can now be supplied from a single high-capacity battery cell, which in contrast to conventional 3 V button cells, offers considerably more power for a longer operational life. With the R-78S a MEMS vibration generator output can be boosted up to a useful output voltage. The efficiency of the R-78S series can reach 93% at full load, maintained at over 90% even under light loading. An enable pin puts the converter into very low power standby mode.

 

Features

  • Boost converter (1.8, 3.3 or 3.6 V from a single 1.5 V cell)
  • Efficiency: 93%, >80% with 10% load
  • Input range down to 0.65 V
  • Continuous SCP
  • Standby input current: 7 µA
  • Operating temperature range from -40°C up to +100°C
  • IEC/EN62368-1 certified with CB Report

Applications

  • Single-cell powered IoT applications
  • Energy harvesting
  • WLAN/Bluetooth/LoRaWAN modules

 

View Details

R-78 Evalulation Boards

RECOM R-78 Evalulation Boards

The R-78S Evaluation Boards, Reference Design and Breakout boards allow engineers to test the functionality of the R-78S switching regulator, which can boost a AA battery or external supply voltage to 3.3V for low power IoT applications. They are equipped with jumper headers to measure input and output current and voltage, thus allowing typical battery lifetime calculations in both active and standby mode.

 

Features

  • 3.3V from a single AA battery or from external source (boost converter)
  • Efficiency: 93%, >80% with 10% load
  • Input range down to 0.65 V
  • Standby input current: 7 µA
  • Input and output power measurement capability
  • Micro USB Type B or 0.100" (2.54 mm) pin output

Applications

  • Energy harvesting
  • Sensors
  • "Hand-in-hand" IoT
  • Smart-home/smart office

 

View Details