EMI suppression film capacitors lengthen service in harsh environments

Three series of X1, X2 and Y2 electromagnetic interference (EMI) suppression film capacitors for standard across the line and line bypass applications have been introduced by Vishay Intertechnology.

The F340 EMI suppression family is designed to meet the most stringent requirements for robustness against humidity, says Vishay Intertechnology. The capacitors are certified to IEC 60384-14: 2013 ed. 4 / AMD1: 2016 grade IIIB:  High Robustness Under High Humidity.

To comply with the humidity grading system defined under IEC 60384-14: 2013 ed. 4 / AMD1: 2016 grade IIIB, the capacitors released today withstand temperature humidity bias (THB) testing of 85 degrees C, 85 per cent relative humidity for 1,000 hours while biased at the rated AC voltage with high stability on capacitance, dissipation factor, and insulation resistance. According to Vishay, this translates into longer service life under harsh application conditions for industrial and automotive power electronics, such as battery chargers, renewable energy inverters, motor drives, and UPS.

The family is made up the F340X1, the F340X2 and F340Y2. The F340X1 is designed for a rated voltage of 480V AC. It offers a broad capacitance range from 0.22 to 8.2 microFarad while withstanding operation voltages up to 530V AC to ensure compliance with permissible voltage variations on three-phase mains.

The F340X2 has a rated voltage of 305V AC and provides a capacitance range from one to 20 microFarad, with high ripple current capabilities up to 18A at 10kHz.

The F340Y2 also has a rated voltage of 305V AC, and is qualified in accordance with AEC-Q200 Automotive Grade. It provides a capacitance range from 0.01 to one microFarad.

The entire F340 family is certified in accordance with EN, UL and CQC for safety and humidity robustness. The capacitors offer lead pitches of 15, 22.5, 27.5, 37.5 and 52.5mm. Encapsulation consists of a flame-retardant UL-class 94 V-0 plastic case and epoxy resin sealing. All are lead (Pb)-free and RoHS-compliant. The F340X1  and F340X2  are also halogen-free.

Samples of the X1, X2, and Y2 capacitors are available now, with lead times of 16 weeks.


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