industry news
Subscribe Now

Fairchild’s 800V SuperFET II MOSFET Family Delivers Lowest On-Resistance and Broad Package Range

SAN JOSE, Calif. – March 9, 2015 — Fairchild (NASDAQ: FCS), a leading global supplier of high-performance power semiconductor solutions, today introduced its 800V SuperFET® II MOSFET family, featuring broad package offerings and the industry’s lowest on-resistance (Rdson) andoutput capacitance (Coss).  The new family enables designers to improve the efficiency, cost-effectiveness and reliability of high performance solutions requiring breakdown voltage higher than 600V / 650V, and also reduces the board space of these designs by enabling the elimination of components. 

The best-in-class reliability of the 800V SuperFET II MOSFET family, coupled with its excellent efficiency and thermal characteristics, makes it ideal for a variety of applications. Meanwhile, its broad range of package options gives designers tremendous flexibility, particularly with size constrained designs.  Key applications for the family include LED lighting, power supplies for LED televisions and home theater audio equipment, power adapters, servers, industrial power and auxiliary power supplies, as well as micro solar inverters.

“Manufacturers can improve the efficiency and reliability of their products with Fairchild’s new 800V SuperFET II MOSFET family, which is significantly more efficient than its closest competitor thanks to excellent switching performance and low specific resistance,” said Wonhwa Lee, principal technical marketing engineer at Fairchild. “The new family uses the latest super-junction technology to enable a small form factor with higher efficiency than ever before and its robust built-in diode at high dv/dt conditions can improve the reliability of industrial bridge circuits.”

Fairchild’s newest 800V SuperFET II MOSFET family is comprised of  26 devices covering a Rdson range of 4.3 Ohm to an industry low of 60 mOhm*, all offered in a wide range of standard package options, giving designers greater choice and flexibility in employing the best device for their specific application.  For example, the FCD850N80Z, a key member of the family, combines an exceptionally low 850 mOhm Rdson(max) in DPAKwith 6~11 percent lower Rdson (max)  and 8~13 percent lower Coss (@400V)  than its primary competitors, making it ideal for LED lighting applications which require low resistance and are size constrained.

Members of Fairchild’s 800V SuperFET II MOSFET family include:

 

Rdson (max)

[m?]

TO-247

D2-Pak

TO-220

TO-220F

D-Pak

(TO-252)

I-Pak

(TO-251)

4,300

 

 

 

FCPF4300N80Z

 

FCU4300N80Z

3,400

 

 

 

 

*

*

2,250

 

 

 

FCPF2250N80Z

FCD2250N80Z

FCU2250N80Z

1,300

 

 

 

FCPF1300N80Z

FCPF1300N80ZYD**

FCD1300N80Z

 

850

 

 

*

FCPF850N80Z

FCD850N80Z

FCU850N80Z

650

 

 

*

FCPF650N80Z

 

 

400

 

 

*

FCPF400N80Z

FCPF400N80ZL1**

 

 

290

 

*

*

*

 

 

220

 

 

*

*

 

 

85

*

 

 

 

 

 

60

*

 

 

 

 

 

(*: in development, mass production by THE end of 1H 2015. **: suffix “YD” is Y form of outlead, and “L1” is narrow outlead.)

To learn more about Fairchild’s SuperFET® II MOSFET technology, please visit https://info.fairchildsemi.com/FY15M03-PR-800V_SuperFET_II_MOSFET_Family.html

About Fairchild:

Fairchild has a rich history as a pioneer in the semiconductor industry and that pioneering spirit endures today in our vision for making the world a cleaner and smarter place. We specialize in the development and manufacturing of a complete portfolio of low- to high-power solutions and deliver an amazing design experience to the engineers and system architects who build systems for the mobile, industrial, cloud, automotive, lighting, and computing industries. Our foundation is our guiding principles, which recognizes the inseparability of engaged employees and delighted customers, and encourages our employees to simplify, challenge, explore, play, excel, respect, go fast, and be direct. If you use a smart phone, drive a car, own a modern appliance, live and work in comfortable connected buildings, or enjoy film animation, you have experienced Fairchild’s Power to Amaze. Please visit us on the web at www.fairchild.com. Connect with us on LinkedIn

Follow us on Twitter @FairchildSemi

Join the conversation! Check out the latest blogs from Fairchild at http://blog.fairchildsemi.com

 

Visit us on Facebook at http://www.facebook.com/FairchildSemiconductor

Leave a Reply

featured blogs
Apr 24, 2026
A thought experiment in curiosity, confusion, and cosmic consequences....

featured paper

Quickly and accurately identify inter-domain leakage issues in IC designs

Sponsored by Siemens Digital Industries Software

Power domain leakage is a major IC reliability issue, often missed by traditional tools. This white paper describes challenges of identifying leakage, types of false results, and presents Siemens EDA’s Insight Analyzer. The tool proactively finds true leakage paths, filters out false positives, and helps circuit designers quickly fix risks—enabling more robust, reliable chip designs. With detailed, context-aware analysis, designers save time and improve silicon quality.

Click to read more

featured chalk talk

Connecting the World Through Space
Sponsored by Mouser Electronics and Qorvo
In this episode of Chalk Talk, Ryan Jennings from Qorvo and Amelia Dalton explore the critical components and design challenges inherent in LEO satellite infrastructure and how Qorvo’s solutions are enabling the next generation of space-based connectivity. 
Mar 30, 2026
29,704 views