FN409-3-02 Schaffner EMC Inc, FN409-3-02 Datasheet - Page 3

• Manufacturer Part Number: FN409-3-02
• Description: PCB Filters
• Manufacturer: Schaffner EMC Inc
• Series: FN 409r

Specifications of FN409-3-02

• Filter Type: Power Line
• Voltage - Rated: 75V
• Current: 3A
• Inductance: 2.9mH
• Mounting Type: Through Hole
• Termination Style: PCB Pins
• Current Rating: 3A
• Capacitance X Type Capacitor: 4700nF
• Capacitance Y Type Capacitor: 4.7nF
• External Depth: 27.9mm
• External Length / Height: 11.7mm
• External Width: 50.8mm
• Lead Length: 7.4mm
• Rohs Compliant: Yes
• Svhc: No SVHC (20-Jun-2011)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 297-586

Application
The filters are intended to be used in DC
applications per EN/IEC 60950, where no
transient on the DC bus occurs. To protect the
filter against transient voltages a varistor
VI1+
VI2-
Chassis
ground
Figure 1: transient protection with a varistor
Recommended layout
VI1+
VI2-
Chassis
ground
Note: avoid routing signal tracks or planes under the filter module
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Input
Filter module
+
-
Filter module
FN 409
+
-
Output
(VDR, fig. 1) or a transient diode (fig. 2) must
be placed at the input side of the filter module.
For protection against overcurrent place a
fuse on each input lead (VI+, VI-). When AC
VO1+
VO2-
VO1+
VO2-
VI1+
VI2-
Chassis
ground
Figure 2: transient protection with a transient diode
Transient
diode
voltage is superimposed on DC voltage, VP-P
or VO-P, whichever is larger, should be
maintained within the rated voltage range.
Input
+
-
Filter module
FN 409
+
-
Output
May 2008
VO1+
VO2-