Low Cost PCB Filter
Approvalsn Rated currents from 0.5 to 6.5A
n Compact PCB-mountable design
n Very low profile
n Optional medical versions (B type)
Typical applications
The FN 402 PCB filter is a single-phase filter
designed for easy and fast PCB-mounting.
Choosing the FN 402 product line brings
you the rapid availability of a standard
filter associated with the necessary safety
acceptance. Standard PCB single-phase filters
are a practical solution helping you to pass
EMI system approval in a short time. A
selection on amperage ratings and medical
types are designed to offer you the desired
standard product.
n Good conducted attenuation performance,
based on chokes with high saturation
resistance and excellent thermal behavior.
n PCB through hole mounting.
n Low cost low profile.
n Custom specific versions on request.
n Electrical and electronic equipment
n Small to medium-sized machines and
household equipment
n Single-phase power supplies, switch-mode
power supplies
n Test and measurement equipment
n Medical equipment
Features and benefits
Technical specifications
Maximum continuous operating voltage: 250VAC, 50/60Hz
Operating frequency: dc to 400Hz
Rated currents: 0.5 to 6.5A @ 40°C max.
High potential test voltage: P –> PE 2000VAC for 2 sec (standard types)
P –> PE 2500VAC for 2 sec (B types)
P –> N 760VAC for 2 sec
Temperature range (operation and storage): -25°C to +100°C (25/100/21)
Design corresponding to: UL 1283, CSA 22.2 No. 8 1986, IEC/EN 60939
Flammability corresponding to: UL 94V-2 or better
MTBF @ 40°C/230V (Mil-HB-217F): 1,900,000 hours
Typical electrical schematic
N
P
Line
Cx 2xL 2xCy
N‘
P‘
PE
Load
R
PCB Filters
FN 402
Per CISPR 17; A = 50Ω/50Ω sym; B = 50Ω/50Ω asym; C = 0.1Ω/100Ω sym; D = 100Ω/0.1Ω sym
Typical filter attenuation
0.5 to 1.6A types 2.5 to 6.5A types
* Maximum leakage under normal operating conditions. Note: if the neutral line is interrupted, worst case leakage could reach twice this level.
Filter selection table
FN 402-0.5-02 0.5 (0.6) 373 40 100 2.2 1000 -02 40
FN 402-1-02 1 (1.2) 373 10 100 2.2 1000 -02 40
FN 402-1.6-02 1.6 (1.9) 373 6 100 2.2 1000 -02 40
FN 402-2.5-02 2.5 (3) 373 2 100 2.2 1000 -02 40
FN 402-4-02 4 (4.7) 373 1 100 2.2 1000 -02 40
FN 402-6.5-02 6.5 (7.5) 373 1 100 2.2 1000 -02 40
FN 402B-0.5-02 0.5 (0.6) 2 40 100 1000 -02 40
FN 402B-1-02 1 (1.2) 2 10 100 1000 -02 40
FN 402B-1.6-02 1.6 (1.9) 2 6 100 1000 -02 40
FN 402B-2.5-02 2.5 (3) 2 2 100 1000 -02 40
FN 402B-4-02 4 (4.7) 2 1 100 1000 -02 40
FN 402B-6.5-02 6.5 (7.5) 2 1 100 1000 -02 40
Filter Rated current Leakage current* Inductance Capacitance Resistance Input/Output Weight
@ 40°C (25°C) @ 230VAC/50Hz L Cx Cy R connections
[A] [µA] [mH] [nF] [nF] [kΩ] [g]
Product selector
FN 402x-yy-..
02: PCB through hole mounting
0.5 to 6.5: Rated current
Blank: Standard version
B: Medical version (without Y2-capacitor)
For example: FN 402-0.5-02, FN 402B-6.5-02
All dimensions in mm; 1 inch = 25.4mm
Tolerances according: ISO 2768-m / EN 22768-m
Mechanical data
FN 402 FN 402B
33
4 10 10
6
9 10 16.5 4±0.5
Ø0.6
45
28
33
4 20
6
9 10 16.5 4±0.5
45
28
Ø0.6
> Components > FN 402
Your local partner: To find your local partner within Schaffner’s global network, please go to www.schaffner.com May 2011
To find your local partner within
Schaffner‘s global network, please go to
www.schaffner.com
May 2011
© 2011 Schaffner EMC.
Specifications subject to change without
notice. All trademarks recognized.
Schaffner is an ISO-registered company.
Its products are designed and manufac-
tured under the strict quality and environ-
mental requirements of the ISO 9001 and
ISO 14001 standards.
This document has been carefully
checked. However, Schaffner does not
assume any liability for errors or inac-
curacies.
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