Triac-Driver Optocouplers come in compact MFP packaging.

Press Release Summary:

Offered in 4-pin, mini-flat packages (MFP), random-phase optocouplers consist of IR LED, optically coupled to silicon bilateral switch. They allow power triac to be triggered at any point on ac voltage waveform and offer peak blocking voltages of 250, 400, and 600 V. Available with trigger current options of 5, 10, and 15 mA, units have steady-state isolation voltage of 3,750 Vrms; full pitch, 2.54 mm lead spacing; and 2.4 mm max standoff height.

Original Press Release:

Fairchild Semiconductor's New Triac Driver Optocouplers Offer Trigger Current And LED Blocking Voltage Options In Compact MFP Packaging

San Jose, CA - November 26, 2003 - Fairchild Semiconductor (NYSE: FCS) expands its family of random-phase triac driver optocouplers with nine new products in 4-pin, mini-flat packages (MFP) that provide designers flexibility and space-saving benefits in industrial and consumer applications. The triac drivers offer designers a choice of three peak blocking voltages (250, 400, or 600V) and three trigger current options (5, 10 or 15mA) that can be tailored to specific application needs. These very compact, MFP-packaged products also feature a high, steady-state isolation voltage of 3,750Vrms, full pitch (2.54 mm) lead spacing, as well as a low (2.4 mm) maximum standoff height-ideal characteristics for very small footprint and low-profile designs.

Fairchild's new random-phase triac driver optocouplers consist of an infrared LED that is optically coupled to a silicon bilateral switch. They are designed to drive power triacs, such as Fairchild's family of 800V triacs, which are used in a wide variety of applications including AC motor drives and starters, static AC power switches, temperature and solenoid/valve controls and solid state relays. Random-phase triac driver optocouplers allow the power triac to be triggered at any point on the AC voltage waveform making them ideal for phase control applications. All the new Fairchild random phase triac drivers are UL approved (BSI, CSA and VDE pending).

"This new family of 4-pin MFP-packaged, random-phase triac driver optocouplers adds to Fairchild's existing line of 23 triac drivers in 6-pin DIP packaging," said Krish Ramdass, strategic marketing manager for Fairchild's Optocoupler Group. "These new devices are particularly well suited to applications where small footprint and low standoff height are of concern."

In addition, these products are applicable for IR reflow soldering profiles of 230°C max for 30 seconds. These devices are available in tape and reel quantities of 500 and 2,500 units.

This portfolio of triac drivers further expands Fairchild's motor solutions including IGBTs, Smart Power Modules (SPM(TM)), rectifiers, and PFC controllers.

Price: US $ 0.40 (1,000 pcs)

Availability: 6 weeks lead time. Samples available now.

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For information on other Fairchild products, design tools, and sales contacts, please visit

About Fairchild Semiconductor:

Fairchild Semiconductor (NYSE: FCS) is a leading global supplier of high performance products for multiple end markets. With a focus on developing leading edge power and interface solutions to enable the electronics of today and tomorrow, Fairchild's components are used in computing, communications, consumer, industrial and automotive applications. Fairchild's 10,000 employees design, manufacture and market power, analog & mixed signal, interface, logic, and optoelectronics products from its headquarters in South Portland, Maine, USA and numerous locations around the world. Please contact us on the web at

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