TDK Lambda Americas Inc
TDK World Wide


Power Supply Products

High Efficiency DIN Rail Mount Power Supplies Feature Compact Sizes


San Diego, CA – December 2013 –

TDK Corporation announces the introduction of the TDK-Lambda DRB series of DIN rail power supplies for low power applications that require less space on the mounting rail.

Designed to support the growing trend for simple and economic DIN power solutions in industrial, building automation and process control applications, the DRB series combines low cost and extremely compact dimensions with industry leading efficiency of up to 91%. No load power consumption is between <0.3W and <0.5W depending on the model type.

“Customers are demanding DIN rail power supplies that can deliver high reliability in smaller packages” states David Norton, VP Marketing for TDK-Lambda Americas.  “We believe that these are the smallest products of their kind on the market.”

Housed in a robust plastic case, the DRB series offer a narrow design, ranging from 18mm to 45mm, saving vital space on the DIN rail.  The smallest model measures just 18mm x 75mm x 90mm (DRB15-24-1); all DRB models will mount on either a TS35/7.5 or TS35/15 DIN rail offering engineers a flexible option for various applications. In addition, they have been rigorously tested for shock and vibration while mounted onto the rail.

The supplies operate from a universal input of 85~264Vac and have EN61000-3-2 compliance, enabling worldwide use; moreover, they can withstand input voltage surges of 300Vac for 5 seconds. The DRB series is available with 4 output power levels ranging from 15 – 100W and nominal output voltages of 5V, 12-15V, 24-28V or 48Vdc.

The supplies can operate at full load over a wide temperature range of -10 to +55°C (+70°C for 15W model). Typical ripple and noise is below 40mV and a green LED indicates DC OK. Other features include over-current, over-voltage protection and a hold-up time of up to 20ms at 100Vac input voltage, full load.

The DRB series is approved to UL508 safety standard for industrial control equipment. Further safety approvals include IEC/EN 60950-1 (2nd Ed.) and UL/CSA 60950-1. CE marked in accordance with the LV Directive, EMC Directive and RoHS Directive, the power supplies are designed to meet EN55022 and CISPR22 Class B for conducted and radiated EMI, and come with a three-year warranty.

More information can be obtained at the following TDK-Lambda Americas website,, or by calling 800-LAMBDA-4.  Product availability for the DRB series can be found via the link to TDK-Lambda’s distributor network (see “Check Distributor Stock to Buy”) at


Major applications

  • Industrial, building automation and process control applications

Main features and benefits

  • Compact size utilizing less space on the DIN rail
  • High efficiency
  • Low off-load power consumption

Major specifications







Input voltage range


85 to 264Vac (300Vac 5   sec)

Nominal output voltage


5, 12-15, 24-28 & 48V   (Model dependant)

Efficiency (Typ.)


90% (24V Model, 230Vac   Input)

Maximum output power


15 W

30 W

50 W

100 W



Convection cooling  

Operating temperature


-20 to +70°C. (DRB30-100,   de-rate linearly to 50% load above 55°C)



UL60950-1,   CSA22.2 60950-1, EN60950-1, UL508

Size (W x H x D)


18 x 75 x 90

21 x 75 x 90

30 x 75 x 90

45 x 75 x 100



Three years


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About TDK Corporation

TDK Corporation is a leading electronics company based in Tokyo, Japan. It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK's portfolio includes electronic components, modules and systems* marketed under the product brands TDK and EPCOS, power supplies, magnetic application products as well as energy devices, flash memory application devices, and others. TDK focuses on demanding markets in the areas of information and communication technology and consumer, automotive and industrial electronics. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2013, TDK posted total sales of USD 9.1 billion and employed about 80,000 people worldwide.

* The product portfolio includes ceramic, aluminum electrolytic and film capacitors, ferrites, inductors, high-frequency components such as surface acoustic wave (SAW) filter products and modules, piezo and protection components, and sensors.

About TDK-Lambda

TDK-Lambda Corporation, a group company of TDK Corporation, is a leading global power supply company providing highly reliable power supplies for industrial equipment worldwide. TDK-Lambda Corporation meets the various needs of customers with our entire range of activities, from research and development through to manufacturing, sales, and service with bases in five key areas, covering Japan, Europe, America, China, and Asia.

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Editorial Contact:

David Norton VP Marketing
TDK-Lambda Americas Inc.
3055 Del Sol Blvd.
San Diego, CA 92154
Ph: 619-575-4400