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Power Transformers T
HE
P
OWER
P
ROFESSIONALS
www.avellindberg.com sales @avellindberg.com
860/355-4711 FAX 860/354-8597
Power Transformers
Low-Prole Encapsulated
page 14
The International On-Board Transformer
OB Range transformers are mounted in resin-lled, at
thermoplastic cases with pins for soldering directly to
plated-through holes in P.C. boards.
For additional mounting strength, four holes are
molded into the corners of the case to accept optional
mounting screws.
The non-concentric twin primary and secondary
windings are wound on separate bobbins, which
provides maximum isolation and low inter-winding
capacitance.
The low height prole allows for close spacing
between boards.
Features and Benets International certications: UL 506, CSA C22.2,
EN 60/742, EN 61 558, SEV 1003, VDE 0551,
VDE 0570. CE marked. Also available in self-extinguishing materials
to UL 94V-0. Low prole PCB mounted Resin lled under vacuum 5KV AC ash test Custom designs available Industry standard High reliability
General Specication for OB types
Primaries: 115/230 V.
Frequency: 50/60 Hz.
Maximum ambient temperature: 40 C.
Secondary voltage tolerance: Within 5% at normal input
and full load.
Flash tested: at 5K VAC.
Mounting: On P.C. board.
Certications: VDE 0551, VDE 0570, IEC 742, UL 506,
DIN/EN60 742, EN61 558, CSA C22.2, SEV 1003;
EN 60-950 available on request.
Primaries and Secondaries
Parallel Connected
0
2 x I
V
115V
230V
I
C.T. 2 x V
Primaries and Secondaries
Series Connected
Primaries Series Connected,
Secondaries Independent
230V
I
I
V
V
Transformer Connections T
HE
P
OWER
P
ROFESSIONALS
www.avellindberg.com sales @avellindberg.com
860/355-4711 FAX 860/354-8597
Power Transformers
Low-Prole Encapsulated
page 15
Transformer Specications
Load
Secondary RMS
Secondary RMS
Regulation
Height
Weight
Drawing
AVEL
(VA)
Rating Series
Rating Parallel
(Typical)
(mm / inches)
(g / pounds)
Figure
P/N
0.8
10V @ 80mA
5V @ 160mA
30%
10.8 / .425
107 / 0.23
2
OB.8-5
0.8
12V @ 67mA
6V @ 133mA
30%
10.8 / .425
107 / 0.23
2
OB.8-6
0.8
18V @ 44mA
9V @ 88mA
30%
10.8 / .425
107 / 0.23
2
OB.8-9
0.8
24V @ 33mA
12V @ 66mA
30%
10.8 / .425
107 / 0.23
2
OB.8-12
0.8
30V @ 27mA
15V @ 54mA
30%
10.8 / .425
107 / 0.23
2
OB.8-15
0.8
36V @ 22mA
18V @ 44mA
30%
10.8 / .425
107 / 0.23
2
OB.8-18
0.8
48V @ 17mA
24V @ 33mA
30%
10.8 / .425
107 / 0.23
2
OB.8-24*
2
10V @ 200mA
5V @ 400mA
25%
17.6 / .692
115 / 0.254
1
OB2-5
2
12V @ 170mA
6V @ 340mA
25%
17.6 / .692
115 / 0.254
1
OB2-6
2
18V @ 110mA
9V @ 220mA
25%
17.6 / .692
115 / 0.254
1
OB2-9
2
24V @ 85mA
12V @ 170mA
25%
17.6 / .692
115 / 0.254
1
OB2-12
2
30V @ 70mA
15V @ 140mA
25%
17.6 / .692
115 / 0.254
1
OB2-15
2
36V @ 65mA
18V @ 110mA
25%
17.6 / .692
115 / 0.254
1
OB2-18
2
48V @ 40mA
24V @ 80mA
25%
17.6 / .692
115 / 0.254
1
OB2-24*
Height
(see chart)
67.8 (2.67)
62.5 (2.46)
45 (1.77)
50
(1.97)
5
(.197)
8 (.315) hole depth
57
(2.24)
0V
0V
115V
115V
VSEC
0
VSEC
0
16 (.63)
15 (.59)
15 (.59)
26 (1.02)
Accepts #4 self-tapping screw (typ.)
10 (.254)
10 (.254)
Pin View
.8 (.003) dia (typ.)
Dimensions in mm (inches). Proportions altered to illustrate detail.
Figure 1
Figure 2
Height
(see chart)
Pin View
0V
0V
115V
115V
0
VSEC
VSEC
0
53 (2.09)
47.5 (1.87)
35 (1.38)
37.5
(1.48)
44
(1.73)
10 (.254)
15 (.59)
10 (.254)
5
25 (.984)
5 (1.97)
5 (1.97)
Accepts #4 self-tapping screw (typ.)
8 (.315) hole depth
.8 (.003) dia (typ.)
5 (.197)
Continued on next page
* These transformers meet VDE 0550 only. T
HE
P
OWER
P
ROFESSIONALS
www.avellindberg.com sales @avellindberg.com
860/355-4711 FAX 860/354-8597
Power Transformers
Low-Prole Encapsulated
page 16
Transformer Specications (continued)
Load
Secondary RMS
Secondary RMS
Regulation
Height
Weight
Drawing
AVEL
(VA)
Rating Series
Rating Parallel
(Typical)
(mm / inches)
(g / pounds)
Figure
P/N
4
10V @ 400mA
5V @ 800mA
22%
19.6 / .772
145 / 0.32
1
OB4-5
4
12V @ 330mA
6V @ 660mA
22%
19.6 / .772
145 / 0.32
1
OB4-6
4
18V @ 220mA
9V @ 440mA
22%
19.6 / .772
145 / 0.32
1
OB4-9
4
24V @ 165mA
12V @ 330mA
22%
19.6 / .772
145 / 0.32
1
OB4-12
4
30V @ 135mA
15V @ 270mA
22%
19.6 / .772
145 / 0.32
1
OB4-15
4
36V @ 110mA
18V @ 220mA
22%
19.6 / .772
145 / 0.32
1
OB4-18
4
48V @ 85mA
24V @ 170mA
22%
19.6 / .772
145 / 0.32
1
OB4-24*
6
10V @ 600mA
5V @ 1.2A
19%
22.6 / .889
175 / 0.386
1
OB6-5
6
12V @ 500mA
6V @ 1A
19%
22.6 / .889
175 / 0.386
1
OB6-6
6
18V @ 330mA
9V @ 660mA
19%
22.6 / .889
175 / 0.386
1
OB6-9
6
24V @ 250mA
12V @ 500mA
19%
22.6 / .889
175 / 0.386
1
OB6-12
6
30V @ 200mA
15V @ 400mA
19%
22.6 / .889
175 / 0.386
1
OB6-15
6
36V @ 165mA
18V @ 330mA
19%
22.6 / .889
175 / 0.386
1
OB6-18
6
48V @ 125mA
24V @ 250mA
19%
22.6 / .889
175 / 0.386
1
OB6-24*
10
10V @ 1A
5V @ 2A
26%
22.8 / .898
280 / 0.617
2
OB10-5
10
12V @ 830mA
6V @ 1.66A
26%
22.8 / .898
280 / 0.617
2
OB10-6
10
18V @ 550mA
9V @ 1.10A
26%
22.8 / .898
280 / 0.617
2
OB10-9
10
24V @ 420mA
12V @ 840mA
26%
22.8 / .898
280 / 0.617
2
OB10-12
10
30V @ 335mA
15V @ 670mA
26%
22.8 / .898
280 / 0.617
2
OB10-15
10
36V @ 280mA
18V @ 560mA
26%
22.8 / .898
280 / 0.617
2
OB10-18
10
48V @ 210mA
24V @ 420mA
26%
22.8 / .898
280 / 0.617
2
OB10-24*
14
10V @ 1.4A
5V @ 2.8A
18%
24.4 / .976
315 / 0.695
2
OB14-5
14
12V @ 1.15A
6V @ 2.3A
18%
24.4 / .976
315 / 0.695
2
OB14-6
14
18V @ 780mA
9V @ 1.56A
18%
24.4 / .976
315 / 0.695
2
OB14-9
14
24V @ 585mA
12V @ 1.17A
18%
24.4 / .976
315 / 0.695
2
OB14-12
14
30V @ 470mA
15V @ 940mA
18%
24.4 / .976
315 / 0.695
2
OB14-15
14
36V @ 390mA
18V @ 780mA
18%
24.4 / .976
315 / 0.695
2
OB14-18
14
48V @ 290mA
24V @ 580mA
18%
24.4 / .976
315 / 0.695
2
OB14-24*
18
10V @ 1.8A
5V @ 3.6A
17%
27.6 / 1.087
375 / 0.827
2
OB18-5
18
12V @ 1.5A
6V @ 3.0A
17%
27.6 / 1.087
375 / 0.827
2
OB18-6
18
18V @ 1.0A
9V @ 2.0A
17%
27.6 / 1.087
375 / 0.827
2
OB18-9
18
24V @ 750mA
12V @ 1.5A
17%
27.6 / 1.087
375 / 0.827
2
OB18-12
18
30V @ 600mA
15V @ 1.2A
17%
27.6 / 1.087
375 / 0.827
2
OB18-15
18
36V @ 500mA
18V @ 1.0A
17%
27.6 / 1.087
375 / 0.827
2
OB18-18
18
48V @ 375mA
24V @ 750mA
17%
27.6 / 1.087
375 / 0.827
2
OB18-24*
24
10V @ 2.4A
5V @ 4.8A
16%
31.4 / 1.236
445 / 0.981
2
OB24-5
24
12V @ 2.0A
6V @ 4.0A
16%
31.4 / 1.236
445 / 0.981
2
OB24-6
24
18V @ 1.33A
9V @ 2.66A
16%
31.4 / 1.236
445 / 0.981
2
OB24-9
24
24V @ 1.0A
12V @ 2.0A
16%
31.4 / 1.236
445 / 0.981
2
OB24-12
24
30V @ 800mA
15V @ 1.6A
16%
31.4 / 1.236
445 / 0.981
2
OB24-15
24
36V @ 670mA
18V @ 1.34A
16%
31.4 / 1.236
445 / 0.981
2
OB24-18
24
48V @ 500mA
24V @ 1.0A
16%
31.4 / 1.236
445 / 0.981
2
OB24-24*
30
10V @ 3.0A
5V @ 6.0A
15%
35.8 / 1.409
530 / 1.169
2
OB30-5
30
12V @ 2.5A
6V @ 5.0A
15%
35.8 / 1.409
530 / 1.169
2
OB30-6
30
18V @ 1.67A
9V @ 3.33A
15%
35.8 / 1.409
530 / 1.169
2
OB30-9
30
24V @ 1.25A
12V @ 2.5A
15%
35.8 / 1.409
530 / 1.169
2
OB30-12
30
30V @ 1.0A
15V @ 2.0A
15%
35.8 / 1.409
530 / 1.169
2
OB30-15
30
36V @ 830mA
18V @ 1.67A
15%
35.8 / 1.409
530 / 1.169
2
OB30-18
30
48V @ 625mA
24V @ 1.25A
15%
35.8 / 1.409
530 / 1.169
2
OB30-24*
* These transformers meet VDE 0550 only.