industry news
Subscribe Now

TDK offers varistors in SMD design with high surge current capability

January 30, 2024

TDK Corporation (TSE:6762) presents two new varistor series in SMD design. The types of both series are available for a wide range of operating voltages from 175 VRMS to 460 VRMS, corresponding to 225 VDC to 615 VDC. While the B72210M* series of surge devices, which are equivalent to S14 leaded disk varistors, offers a surge current capability of 6000 A, the B72214M* series types, which are equivalent to S20 leaded disk varistors, have a high surge current capability of 10,000 A. All types are designed for a high operating temperature of a maximum of +125 °C and extremely damp heat environment (85% relative humidity at +85 °C).

The new SMD high surge series is qualified to AEC-Q200. In terms of designs, all types are available in a horizontal as well as vertical version, which offers higher design flexibility. The horizontal version of the B72210M* series has dimensions of 22 x 15 x 11 mm, while the B72214M* series has dimensions of 27 x 18 x 11 mm, (L x W x H). The vertical types have dimensions of 15 x 10 x 20 mm and 18 x 10 x 25.5 mm, respectively. This results in space saving compared to leaded varistors with the same performance.

Typical applications of SMD surge protection components are on-board chargers, power supplies, frequency converters, photovoltaic systems and household appliances.


Main applications

  • On-board chargers, power supplies, frequency converters, photovoltaic systems and household appliances

Main features and benefits

  • Wide range of operating voltages from 175 VRMS to 460 VRMS
  • High surge current capability of 6000 A or 10,000 A
  • Horizontal and vertical designs
  • Qualified according to AEC-Q200
  • Space saving compared to leaded disk varistors with the same performance


About TDK Corporation

TDK Corporation is a world leader in electronic solutions for the smart society based in Tokyo, Japan. Built on a foundation of material sciences mastery, TDK welcomes societal transformation by resolutely remaining at the forefront of technological evolution and deliberately “Attracting Tomorrow.” It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK‘s comprehensive, innovation-driven portfolio features passive components such as ceramic, aluminum 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 automotive, industrial and consumer electronics, and information and communication technology. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2023, TDK posted total sales of USD 16.1 billion and employed about 103,000 people worldwide.

Leave a Reply

featured blogs
Feb 22, 2024
The new Cadence training website is online! This newly redesigned website provides an overview of our well-respected training methods and courses, plus offerings that might be new to you. Modern design and top-of-the-page navigation make it easy to find just what you need'”q...
Feb 15, 2024
This artist can paint not just with both hands, but also with both feet, and all at the same time!...

featured video

Tackling Challenges in 3DHI Microelectronics for Aerospace, Government, and Defense

Sponsored by Synopsys

Aerospace, Government, and Defense industry experts discuss the complexities of 3DHI for technological, manufacturing, & economic intricacies, as well as security, reliability, and safety challenges & solutions. Explore DARPA’s NGMM plan for the 3DHI R&D ecosystem.

Learn more about Synopsys Aerospace and Government Solutions

featured paper

How to Deliver Rock-Solid Supply in a Complex and Ever-Changing World

Sponsored by Intel

A combination of careful planning, focused investment, accurate tracking, and commitment to product longevity delivers the resilient supply chain FPGA customers require.

Click here to read more

featured chalk talk

Gas Monitoring and Metering with Sensirion SFC6000/SFM6000 Solutions
Sponsored by Mouser Electronics and Sensirion
In this episode of Chalk Talk, Amelia Dalton and Negar Rafiee Dolatabadi from Sensirion explore the benefits of Sensirion’s SFM6000 Flow Meter and SFC Flow Controller. They examine how these solutions can be used in a variety of applications and how you can get started using these technologies for your next design.
Jan 17, 2024