High Performance Single-Phase Filters FN343

Performance EMI Filter


Performance EMI Filter

  • Rated currents from 1 to 10 A
  • Dual-stage filter
  • Compact housing
  • Integrated earth line choke

Features and Benefits

FN 343 filters are designed for easy and fast chassis mounting
Increased attenuation performance based on dual-stage filter design and earth line choke
All FN 343 single-phase filters provide an excellent attenuation performance, based on chokes with high saturation and excellent thermal behavior
Faston connection
Integrated earth line choke
Compact design
Custom-specific versions on request

Typical Applications

Electrical and electronic equipment
Consumer goods
Household equipment
Power supplies
Office automation equipment
Datacom equipment
Industrial equipment auxiliary supply

Technical Specifications

Maximum continuous operating voltage

250 VAC, 50/60 Hz

Operating frequency

DC to 400 Hz

Rated currents

1 to 10 A @ 40°C max.

High potential test voltage

P –> PE 2000 VAC for 2 sec

P –> N 760 VAC for 2 sec

Temperature range (operation and storage)

-25°C to +100°C (25/100/21)

Flammability corresponding to

UL 94 V-2 or better

Design corresponding to

UL 1283, CSA 22.2 No. 8 1986, IEC/EN 60939

MTBF @ 40°C/230 V (Mil-HB-217F)

970,000 hours

Typical electrical schematic


Approvals & Compliances

UL Recognized Label
CSA Label
ENEC 14 Label
RoHS Label
CE Label
UKCA Label