Datasheet

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

Single-Phase Filters

FN 343

Performance EMI Filter

Rated currents from 1 to 10A

Dual-stage filter

Compact housing

Integrated earth line choke

Approvals

Technical specifications

Maximum continuous operating voltage: 250VAC, 50/60Hz

Operating frequency: dc to 400Hz

Rated currents: 1 to 10 A @ 40°C max.

High potential test voltage: P –> PE 2000VAC for 2 sec

P –> N 760VAC for 2 sec

Temperature range (operation and

storage):

-25°C to +100°C (25/100/21)

Flammability corresponding to: UL 94V-2 or better

Design corresponding to: UL 1283, CSA 22.2 No. 8 1986, IEC/EN

60939

MTBF @ 40°C/230V (Mil-HB-217F): 970,000 hours

Typical electrical schematic

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Single-Phase Filters FN 343 Performance EMI Filter Rated currents from 1 to 10A Dual-stage filter Approvals Compact housing Integrated earth line choke Technical specifications Typical electrical schematic Features and benefits Typical applications Maximum continuous operating voltage: 250VAC, 50/60Hz Operating frequency: dc to 400Hz Rated currents: 1 to 10 A @ 40°C max.
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Single-Phase Filters > FN 343 Filter selection table Filter FN FN FN FN Rated current @ 40°C (25°C) Leakage current* @ 230VAC/50Hz L Inductance L1 L2 [A] 1 (1.15) 3 (3.4) 6 (6.9) 10 (11.5) [μA] 340 340 340 340 [mH] 5.6 1.1 0.43 0.27 [mH] [mH] 10 0.4 2 0.4 0.77 0.4 0.66 0.4 343-1-05 343-3-05 343-6-05 343-10-05 Capacitance Cx Cy [nF] 100 100 100 100 [nF] 2.2 2.2 2.2 2.2 Resistance R Input/Output connections [MΩ] 1 1 1 1 -05 -05 -05 -05 * Maximum leakage under normal operating c onditions.
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