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

220 nF 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 2.20uF 20% 480Vac MKP Suppression X1
Datasheet
1 171In 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 768In Stock
Min.: 1
Mult.: 1

100 nF 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 0.47uF 10% 480Vac MKP Suppression X1
Datasheet
1 085In Stock
Min.: 1
Mult.: 1

470 nF 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 1.50uF 10% 480Vac MKP Suppression X1
Datasheet
1In Stock
1 440Expected 2026-09-14
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 2026-10-08
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