B3291xH EMI Suppression Capacitors

EPCOS / TDK B3291xH EMI Suppression Capacitors are designed for power line filtering of Electromagnetic Interference (EMI) in demanding automotive and industrial applications. These capacitors are THB-tested at 85°C, 85% relative humidity for 1000 hours at 380V (AC) and 1000V (DC). The B3291xH capacitors feature a 15nF to 10μF capacitance range. These capacitors are available in 18mm x 10.5mm x 5mm to 57.5mm x 57mm x 45mm dimensions. The B3291xH capacitors are certified according to ENEC, UL, and CSA standards. Typical applications include the X1 class for interference suppression, across-the-line application, and severe ambient conditions.

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Description Datasheet Availability Pricing (CHF) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Capacitance
Voltage Rating DC
Termination Style
Dielectric
Lead Spacing
Length
Width
Product
Voltage Rating AC
Tolerance
Number of Pins
Height
Lead Style
Minimum Operating Temperature
Maximum Operating Temperature
Series
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TDK Film Capacitors 0.22uF 10% 480Vac MKP Suppression X1
Datasheet
2’908In Stock
Min.: 1
Mult.: 1

0.22 uF 1 kVDC Radial Polypropylene (PP) 22.5 mm (0.886 in) 26.5 mm (1.043 in) 20.5 mm (0.807 in) Film Capacitors 490 VAC 10 % 2 Pin 10.5 mm (0.413 in) Straight - 40 C + 110 C B3291*H/J - X1 480Vac Bulk
TDK Film Capacitors 0.47uF 10% 480Vac MKP Suppression X1
Datasheet
1’555In Stock
Min.: 1
Mult.: 1

0.47 uF 1 kVDC Radial Polypropylene (PP) 22.5 mm (0.886 in) 26.5 mm (1.043 in) 14.5 mm (0.571 in) Film Capacitors 490 VAC 10 % 2 Pin 29.5 mm (1.161 in) Straight - 40 C + 110 C B3291*H/J - X1 480Vac Bulk
TDK Film Capacitors 2.20uF 20% 480Vac MKP Suppression X1
Datasheet
1’180In Stock
Min.: 1
Mult.: 1

2.2 uF 1 kVDC Radial Polypropylene (PP) 37.5 mm (1.476 in) 42 mm (1.654 in) 20 mm (0.787 in) Film Capacitors 490 VAC 20 % 2 Pin 39.5 mm (1.555 in) Straight - 40 C + 110 C B3291*H/J - X1 480Vac Bulk
TDK Film Capacitors 2.70uF 10% 480Vac MKP Suppression X1
Datasheet
517In Stock
Min.: 1
Mult.: 1

2.7 uF 1 kVDC Radial Polypropylene (PP) 37.5 mm (1.476 in) 42 mm (1.654 in) 24 mm (0.945 in) Film Capacitors 490 VAC 10 % 2 Pin 44 mm (1.732 in) Straight - 40 C + 110 C B3291*H/J - X1 480Vac Bulk
TDK Film Capacitors 3.30uF 20% 480Vac MKP Suppression X1
Datasheet
509In Stock
Min.: 1
Mult.: 1

3.3 uF 1 kVDC Radial Polypropylene (PP) 37.5 mm (1.476 in) 42 mm (1.654 in) 24 mm (0.945 in) Film Capacitors 490 VAC 20 % 2 Pin 44 mm (1.732 in) Straight - 40 C + 110 C B3291*H/J - X1 480Vac Bulk
TDK Film Capacitors 0.10uF 20% 480Vac MKP Suppression X1
Datasheet
2’793In Stock
Min.: 1
Mult.: 1

0.1 uF 1 kVDC Radial Polypropylene (PP) 15 mm (0.591 in) 18 mm (0.709 in) 11 mm (0.433 in) Film Capacitors 490 VAC 20 % 2 Pin 18.5 mm (0.728 in) Straight - 40 C + 110 C B3291*H/J - X1 480Vac Bulk
TDK Film Capacitors 1.50uF 10% 480Vac MKP Suppression X1
Datasheet
3In Stock
1’440Expected 9/14/2026
Min.: 1
Mult.: 1

1.5 uF 1 kVDC Radial Polypropylene (PP) 37.5 mm (1.476 in) 42 mm (1.654 in) 18 mm (0.709 in) Film Capacitors 490 VAC 10 % 2 Pin 32.5 mm (1.28 in) Straight - 40 C + 110 C B3291*H/J - X1 480Vac Bulk
TDK Film Capacitors 8.20uF 20% 480Vac MKP Suppression X1
Datasheet
5In Stock
216Expected 9/30/2026
Min.: 1
Mult.: 1

8.2 uF 1 kVDC Radial Polypropylene (PP) 52.5 mm (2.067 in) 57.5 mm (2.264 in) 35 mm (1.378 in) Film Capacitors 490 VAC 20 % 2 Pin 50 mm (1.969 in) Straight - 40 C + 110 C B3291*H/J - X1 480Vac Bulk