New Industry Products

Fast Response, Multi-Functional DC Electronic Load SFL series

3 days ago by Hailey Stewart

TDK Corporation announces the start of selling new TDK-Lambda brand Electronics Load Equipment “SFL Series" with 300W and 1kW load power line ups.

TDK Corporation announces the start of selling new TDK-Lambda brand Electronics Load Equipment “SFL Series”. TDK-Lambda Corporation will start shipping in July 2020.


Fast Response, Multi-Functional DC Electronic Load SFL series Figure


DC electronic load, SFL series is capable for 300W/1000W. Its fast-current feedback control helps to reduce current overshoot during rise-up. The minimum operation voltage is not restricted in which can help the current to flow from 0A up to set-current proportionally, just like “electronic resistor”.

Several operation modes are also available, such as CC (Constant Current), CV (Constant Voltage), CP (Constant Power), to simulate many kinds of load test conditions for customer application.

USB interface is standard built-in, while GPIB and ripple noise meter are available as options. Ripple noise measuring method is equivalent to 100MHz BW to meet JEITA standard

It is possible to configure large load system up to 10kW (10pcs) by connecting cables that available as options. This is suitable for DC Power Supply, Fuel Cell Battery, Solar Battery, etc. Also, battery charge/discharge application is also possible by combining DC electronic load and our DC Power supply products, such as GENESYS+.


Main applications

  • Load for DC Power Supply, Fuel Cell, Solar Battery
  • Load for Test and Measurements


Main features and benefits

  • 4 models available : Load Power 300W, 1kW (Rated Voltage: 120V or 500V)
  • Built-in USB interface
  • Fast current feedback control (to reduce current overshoot)
  • Operates as like actual resistance (operates proportionally from 0A)
  • 6 modes operation (Constant Current, Constant Resistance, Constant Voltage, Constant Power, External Control, Short Circuit)
  • Up to 10kW (10pcs) configuration utilizing option cable connection
  • Ripple Noise Meter is available as option


Model Name SFL 120-60-300 SFL 500-12-300 SFL 120-180-1K SFL 500-36-1K
Input Line Voltage AC 85V ~ 264V
Voltage 120V 500V 120V 500V
Current 60A 12A 180A 36A
Power 300W 300W 1000W 1000W
Min. resistance <18mΩ <100mΩ <6mΩ <33.3mΩ
Load Range 1.08V (60A)
0.54V (30A)
0.22V (12A)
1.2V (12A)
0.6V (6A)
0.28V (2.8A)
1.08V (180A)
0.54V (90A)
0.22V (36A)
1.2V (36A)
0.6V (18A)
0.28V (8.4A)
Operation Mode Constant Current (CC), Constant Resistance (CR), Constant Voltage (CV),
Constant Power (CP), External Control (EXT), Short Circuit (SHORT)
(Exc. Protrusion)
215×128.6×420 mm 430×128.6×450 mm
Weight     Approx.6.5 kg     Approx.13 kg


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 comprehensive portfolio features passive components such as ceramic, aluminium electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. The product spectrum also includes sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors. In addition, TDK provides power supplies and energy devices, magnetic heads and more. These products are marketed under the product brands TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda. TDK focuses on demanding markets in the areas of information and communication technology and automotive, industrial and consumer 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 2019, TDK posted total sales of USD 12.5 billion and employed about 105,000 people worldwide.