EMI Filters for UPS

EMI stands for “Electromagnetic Interference”, also known as electrical noise. Thus, an EMI filter is used for noise suppression, and all modern designs include at least one. EMI can be in the wiring of a circuit or it can be radiated through the air (referred to as “RFI.”) EMI shielding and filtering is required by government standards.

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Types of Passive Components
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Description Datasheet Availability Pricing (CHF) Filter the results in the table by unit price based on your quantity.
Qty. RoHS
Knowles Syfer Multilayer Ceramic Capacitors MLCC - SMD/SMT 1812 500V .1uF 20% X7R X2Y Filter
Datasheet
501In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

Knowles Syfer EMI Filter Circuits 500V .0068uF X7R 20% 6.6x5mm Pi Filter
Datasheet
2In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

Knowles Syfer EMI Filter Circuits 500V 6800pF X7R 20% 5.25x3.2mm Pi Filter
Datasheet
74In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

Knowles Syfer Multilayer Ceramic Capacitors MLCC - SMD/SMT 1812 500V .039uF 20% X7R X2Y Filter
Datasheet
1 000Expected 14/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 500

Knowles Syfer EMI Filter Circuits 150 nF 0.05 20% C Filter
Datasheet
500Expected 12/08/2026
MouseReel Available
Min.: 1
Mult.: 1
: 500

Knowles Syfer Multilayer Ceramic Capacitors MLCC - SMD/SMT 1206 200V .01uF 20% X7R X2Y Filter
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2 500
Mult.: 2 500
: 2 500

Knowles Syfer Feed Through Capacitors 1410 200V .047uF 20% X7R X2Y Filter
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2 000
Mult.: 2 000
: 2 000

Knowles Syfer Multilayer Ceramic Capacitors MLCC - SMD/SMT 1812 500V.0027uF 20% X7R X2Y Filter
Datasheet
Lead-Time 10 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 500