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A Power Semiconductor with benefits of small size, simple structure and reliable performance, Thyristors are widely used in the electronic control of Home Appliances and industrial applications.

A Power Semiconductor with benefits of small size, simple structure and reliable performance, Thyristors are widely used in the electronic control of Home Appliances and industrial applications. Triacs , as bi-directional thyristors, are the only semiconductor devices that can control current in both directions to directly control AC loads like induction motors, universal brush motors, AC valves and solenoids, electric heaters, etc. as used in White Goods and small home appliances as well as industrial applications.

False triggering when a triac is in the offstate can be a problem in some applications. System noise, unsuppressed load switching and other transients on the AC line can introduce high overvoltages and high dV/dt across the triac. Exceeding a triac’s VDRM and dVD/dt capability is a major cause of false triggering. The triac may then be damaged if the load current rises too fast (excessive dIT/dt > 100A/μs).

WeEn Semiconductors, as a leading supplier to the worldwide thyristor market, is constantly developing new designs and enhanced technologies to yield better performance, higher reliability and products that are easy to use. Based on our unique Planar Passivation technology, which is used on all our thyristors, we have introduced and continue to expand our product families with embedded overvoltage protection:

  • AC Thyristors (ACT)
  • AC Thyristor Triacs (ACTT)

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The ACT & ACTT series products can clamp overvoltage transients without false triggering into conduction.

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This sets them apart from conventional 3Q and “Snubberless” triacs, which are not guaranteed to clamp and can spontaneously turn on if an overvoltage exceeds their voltage-blocking capability. The ability to clamp instead of turning on reduces a major cause of false triggering.

During overvoltage clamping, the transient energy is safely dissipated in a region on the silicon chip that’s designed for that purpose. It is not a random or risky event as can be the case with older technologies, especially non-planar. As clamping current increases, the device will eventually turn on as a self-protection feature to avoid permanent damage. The difference from conventional triacs is turn-on at milliamperes instead of microamperes of clamping current.

The screen shots compare the overvoltage clamping performance of ACTT and conventional triac. There is effectively no clamping with the conventional triac.

The clamping feature withstands 2000 – 2500V overvoltage transients to IEC 61000-4-5 standard.

In addition to its overvoltage clamping capability, WeEn’s technology possesses the industry’s highest false trigger immunity guarantees with top products boasting a min dVD/dt guarantee of 2000V/μs@Tj = 150°C(ACTT12-800CTN). These device capabilities maximise the whole system noise immunity and false trigger immunity.

WeEn Semiconductors has a comprehensive ACT and ACTT offering, with products covering IT(RMS) from 0.2A to 16A and VDRM from 600V to 800V. There are multiple package options and most parts have Tj(max) capability of 150°C.

WeEn continues to develop more ACT / ACTT products. A recent addition to the portfolio is the ACTT2W-800ETN. This is the first 2A-rated device in SOT223 with 150°C Tj(max) and overvoltage clamping function. Its excellent immunity, dynamic performance and inrush capability bring major benefits to engineers for their small load electronic designs.

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On Oct 27, 2017, IC China exhibition ended in Shanghai.

On Oct 27, 2017, IC China exhibition ended in Shanghai. As the last expo in this year, WeEn Semiconductors successfully exhibit the booth and leave a deep impression on customers.

WeEn’s booth highly attracted a lot of visitors who are from China, Europe, America, South Asia and various other countries. WeEn’s staff created the ultimate platform and extended the strong on-site support in the expo for connecting customers and made this event highly successful.

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WeEn CEO Mr. Markus Mosen was invited to have the interviews with multiple media. He shared his passion, explained about WeEn as well as the ultimate WeEn’s products. In addition that , he explained WeEn’s successful market developing strategy and highly effective R&D planning to them.

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Through IC China exhibition platform, WeEn build a strong closer connection with customers and add values to their business. WeEn is continuing to carry the company value "Innovation Changes Life" in next level to provide high-quality services to all the global customers.

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WeEn will be very pleased to see you this year at IC China in Shanghai and hope to share with you new products and technology, together with the market information.

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Dear Customer & Business Partner,

Thanks for your great support to WeEn Semiconductors.

WeEn will be very pleased to see you this year at IC China in Shanghai and hope to share with you new products and technology, together with the market information.

Looking forward to meeting you at the exhibition!

Exhibition time: 9:00-17:00. Oct, 25-27, 2017

Exhibition: IC China 2017

Location: Shanghai New International Expo Centre (SNIEC)

Hall: W5

Booth No.: 5C023

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According to China Semiconductor Industry Association statistics, China's IC industry revenue reached CNY 433.55 billion in 2016, an increase of 20.1% year-on-year.

According to China Semiconductor Industry Association statistics, China's IC industry revenue reached CNY 433.55 billion in 2016, an increase of 20.1% year-on-year. Among them, the IDM maintained rapid growth and the revenue is CNY 164.43 billion, an increase of 24.1% year-on-year. The manufacturing industry is driven by full load production and expansion of the manufacturing capability and still has rapid growth, an increase of 25.1% year-on-year and the revenue is CNY 112.69 billion; packaging and testing reached CNY 156.43 billion, an increase of 13% year-on-year. In order to promote the development of China's semiconductor industry, China semiconductor industry association also released the "2016 top 10 Power Semiconductor Companies” On this list, WeEn achieves Top 5 Power Semiconductor manufacturer in China.

As a high-Tech company, WeEn Semiconductors Co., Ltd is a global joint venture between NXP Semiconductors N.V. and Beijing JianGuang Asset Management Co. Ltd (JAC Capital). WeEn combines the advanced bipolar power technology of NXP and the strong resource of JAC Capital in Chinese manufacturing industry and distribution channels. It continues to focus on improving power conversion efficiency, follow the development trend of the power industry closely, providing superior power products for smart appliances, transportation, telecommunications, and Energy application.

As a leading player in the semiconductors industry, WeEn focus on developing a complete portfolio of industry-leading bipolar power products including silicon controlled rectifiers, power diodes, high voltage transistors, silicon carbide which are widely used in the automotive, telecommunications, computers and consumer electronics, intelligent home appliances, lighting, and power management markets. The aim is to help the customers achieve higher cost-efficiency and production efficiency and to contribute to the development of China and global intelligent manufacturing.

WeEn Semiconductors is registered at Nanchang city which is the capital city of Jiangxi province, China. It fully owns subsidiaries and branches in Jilin City for bipolar production, in Shanghai and the United Kingdom for R&D and production support, in Hong Kong for Sales activities, and in many other countries for sales and customer services, respectively.

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WeEn Semiconductors (formerly known as Philips Semiconductors/NXP Semiconductors Bipolar Department) sincerely invite you to visit our new technology and products release conference in China Information Technology Expo (CITE) from April 9-11, 2017.

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WeEn Semiconductors (formerly known as Philips Semiconductors/NXP Semiconductors Bipolar Department) sincerely invite you to visit our new technology and products release conference in China Information Technology Expo (CITE) from April 9-11, 2017.

Now as a key player in its own right in the power semiconductor industry, WeEn has over 40 years of design and manufacture experience and continues to focus on developing its portfolio of industry-leading power products including Silicon Controlled Rectifiers (SCRs), Triacs, AC Thyristor Triacs, Power diodes, High Voltage Transistors, and Silicon Carbide devices.

WeEn will be very pleased to see you this year at CITE and hope to share with you new products and technology ,together with the market information. Looking forward to meeting you at the exhibition!

Exhibition time: 9:00-17:00. April 9-11, 2017

Exhibition: China Information Technology Expo(CITE)

Location: Shenzhen Convention & Exhibition Center, China

Hall: 1

Booth No: 1B005

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We are pleased to join this important exhibition for the first time as our company, WeEn Semiconductors - a Joint Venture that founded by NXP Semiconductors and JAC Capital of China.

We are pleased to join this important exhibition for the first time as our company, WeEn Semiconductors - a Joint Venture that founded by NXP Semiconductors and JAC Capital of China. WeEn has more than 40 years’ semiconductor manufacturing experience having grown out of the semiconductor division of Philips and then more recently NXP.

Now as a key player in its own right in the semiconductor industry, WeEn continues to focus on developing its portfolio of industry-leading power products including Silicon Controlled Rectifiers (SCRs), Triacs, AC Thyristors, Power diodes, High Voltage Transistors, and Silicon Carbide diodes.

WeEn will be very pleased to see you this year at PCIM and hope to share with you new products, innovations, latest technology and market information.

We sincerely invite you to visit our booth in Nuremberg from May 16th to 18th, 2017 .

Looking forward to meeting you at the exhibition!

Location: PCIM Nuremberg, Germany

Hall: 6

Booth No: 227

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