P OWE R T RAN S FO R M E R
PC
M O U N T : SPLIT PACK
FS20-120
Description:
The FS20-120 is a dual primary and dual secondary, split bobbin design which
operates with either a parallel input of 115V or a series input of 230V. The output
voltage will be either 20.0V with a center-tap under a 0.12A load with the
secondaries wired in series, or 10.0V under a 0.24A load with the secondaries
wired in parallel. The split bobbin design eliminates the need for costly
electrostatic shielding.
Electrical Specifications (@25C)
1. Maximum Power: 2.5VA
2. Primary:
Series: 230V; Parallel: 115V
3. Secondary:
Series: 20.0V CT@ 0.12A; Parallel: 10.0V @ 0.24A
W
4. Voltage Regulation: 25% TYP @ full load to no load
5. Temperature Rise: 25C TYP
6. Hipot tested 100% at 2500 VRMS
Construction:
Three flange bobbin construction with primaries and secondaries wound side by
side for low capacitive coupling.
Agency File:
UL: File E53148, UL 5085-2 (506), Class B General Purpose Transformer,
cUL: File E53148, UL 5085-2 (506), Class B General Purpose Transformer,
Canadian Use (CSA 22.2, No.66.2-06)
E
L
This model is also available in Class 2, UL 5085-3 (1585) version as FS20-120-C2
H
Dimensions:
Units in inches.
H
W
L
A
B
C
D
E
F
1
2
3
4
1.187
1.125
1.375
0.250
0.250
1.200
0.041
0.020
0.234
Weight: 0.25 lbs
Schematic:
D
F
1
5
PARALLEL
1
SERIES
1
5
A
A
8
115/230V
2
6
115/230V
2
115/230V
2
50/60Hz
3
7
50/60Hz
3
50/60Hz
3
B
4
8
4
4
C
RoHS Compliance: As of manufacturing date February 2005, all standard products meet
the requirements of 2011/65/EU, known as the RoHS initiative.
As of April 7, 2008, UL standards 506 and 1585 will be migrated to UL 5085-2 and
5085-3, respectively.
* Upon printin g, this document is considered “uncontrolled” . Please contact
Triad Magnetics’ website for the most current v ersion.
1
4
0.06" DIAMETER
HOLE
Board Layout
Web: www.TriadMagnetics.com
Phone 951-277-0757
Fax 951-277-2757
460 Harley Knox Blvd.
Perris, California 92571
Publish Date: December 4, 2013
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