Low Voltage - P.C. Board Mount (226-228 Series)
Transformer Schematic
3
4
1
2
5
6
PRI
SEC
LOW PROFILE - EPOXY CAST
P.C. MOUNT POWER TRANSFORMERS
• Primary 115 VAC, 60 or 400Hz. models, 3 case sizes
• Epoxy cast to withstand shock and severe environments
• Two coil design provides balanced windings and low
magnetic radiation - no electrostatic shield required.
• 228 series include four, 6-32 X .38 machine screw inserts
for less strain on p.c. board connections.
226 SERIES
Secondary (RMS)
Series Parallel
Part Size Freq.
No. (VA) (Hz)
Temp.
Rise (C) Regul.
%
226D
226F
226H
226N 20
226P 20
226R 20
226T 20
1
1
1
60 20V C.T. @ 50ma 10V @ 100ma
60 30V C.T. @ 34ma 15V @ 67ma
60 40V C.T. @ 25ma 20V @ 50ma
25
25
25
35
35
35
35
19.7
21.7
18.9
7.2
7.6
7.5
400 20V C.T. @ 1A
10V @ 2A
400 26V C.T. @ 770ma 13V @ 1.54A
400 30V C.T. @ 670ma 15V @ 1.33A
400 40V C.T. @ 500ma 20V @ 1A
0.22 lbs.
0.80" High Max.
0.04" Pin Dia.
7.2
227 SERIES
Secondary (RMS)
Series Parallel
Part Size Freq.
No. (VA) (Hz)
Temp.
Rise (C) Regul.
%
227D
227F
227H
227N 40
227P 40
227R 40
227T 40
5
5
5
60 20V C.T. @ 250ma 10V @ 500ma
60 30V C.T. @ 170ma 15V @ 340ma
60 40V C.T. @ 125ma 20V @ 250ma
25
25
25
45
45
45
45
20.1
24
26
6
5.7
6
400 20V C.T. @ 2A
10V @ 4A
400 26V C.T. @ 1.54A 13V @ 3.08A
400 30V C.T. @ 1.33A 15V @ 2.66A
0.38 lbs
1.05" High Max.
0.05" Pin Dia.
400 40V C.T. @ 1A
20V @ 2A
5.7
228 SERIES
Secondary (RMS)
Series Parallel
Part Size Freq.
No. (VA) (Hz)
Temp.
Rise (C) Regul.
%
228D 10
228F 10
228H 10
60 20V C.T. @ 500ma 10V @ 1A
60 30V C.T. @ 340ma 15V @ 670ma
60 40V C.T. @ 250ma 20V @ 500ma
20
20
20
12.2
12.5
12.2
0.91 lbs
1.22" High Max.
0.05" Pin Dia.
CANADA
EUROPE
Guelph, Ontario (519) 822-2960
St. Laurent, Quebec (514) 343-9010
USA
Basingstoke, UK 01256 812812
www.hammondmfg.com
18
AUSTRALIA
Queenstown, Australia 61-8-8240-2244
Cheektowaga, NY (716) 630-7030
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