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Vishay Intertechnology Releases Environment-Friendly X1 EMI Suppression Film Capacitors for Across-the-Line Applications in Industrial Power Electronics

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Vishay Intertechnology, Inc. (NYSE:VSH) today announced the release of a new series of X1 electromagnetic interference (EMI) suppression film capacitors with voltage ratings of 330 VAC and 480 VAC for standard X1 across-the-line applications (50 Hz / 60 Hz) in industrial power electronics.

The F339X1 480 V capacitor released today features an internal series construction designed for a high grade of capacitance stability, thus ensuring its suitability for continuous operation in across-the-line applications in industrial power applications and for series impedance in capacitive power supplies, even under extreme ambient conditions.

With its mono construction, the F339X1 330 V is an optimized X1 EMI suppression film capacitor for pulse loads of uncontrolled mains switching, such as power inverters, in standard across-the-line applications.

The F339X1 series capacitors offer higher AC voltage ratings than most standard EMI suppression film capacitors while continuing to meet safety approvals, including IEC 60384-14, CSA-E384-14, UL 60384-14, and CQC. The capacitors offer lead pitches from 7.5 mm to 27.5 mm, capacitance values from 0.001 F to 2.2 F, and a permissible DC voltage up to 1000 V.

Climate-tested according to IEC 60068-1 (55/110/56/B), the encapsulation of the devices consists of a flame-retardant UL-class 94 V-0 plastic case, which is epoxy resin-sealed. Supplied loose in a box or taped on reel, the lead (Pb)-free capacitors are RoHS-compliant, halogen-free, and Vishay GREEN. (The Vishay GREEN designation means that a component has less than 900 ppm of antimony and less than 100 ppm of red phosphorous, is halogen-free, and is RoHS-compliant without exemptions.)

Device Specification Table:

Part # F339X1
Rated AC voltage 330 VAC; 50 Hz to 60 Hz 480 VAC; 50 Hz to 60 Hz
Permissible DC voltage 800 VDC 1000 VDC
Capacitance range 0.001 F to 2.2 F 0.001 F to 1F
Capacitance tolerance +/- 20 %; +/- 10 %, +/- 5 %
Max. application temp. 110 oC
Lead pitch 7.5 mm to 27.5 mm 10 mm to 27.5 mm
Construction Mono Series

Samples of the new F339X1 series capacitors are available now. Production quantities will be available in Q4 2014, with lead times of 10 to 12 weeks for larger orders.


Product datasheets on the Vishay website: (F339X1 480 V) (F339X1 330 V)

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Vishay Intertechnology, Inc., a Fortune 1000 Company listed on the NYSE (VSH), is one of the world’s largest manufacturers of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors, and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishays product innovations, successful acquisition strategy, and “one-stop shop” service have made it a global industry leader. Vishay can be found on the Internet at

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Links to datasheets: (F339X1 330VAC) (F339X1 480VAC)

Link to product photo:

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