Toroidal PC Transformers
Features
• Dual 115V or 120V, 50/60 Hz Primaries for parallel or
series connections
• Lower strayfield
• High efficiency
• Reduced standby current
• Small size and low weight
• Extremely low level of radiated magnetic field
• Very low induced noise (hum)
• Very low iron loss
• Test Voltage Primary - Secondary 4.0 KV
• Ease of mounting - M4 Centre bush
• Ambient operating temp.: +60°C Max. for 1.6VA-25VA;
+40°C Max. for 35VA-50VA
• Insulation system recognized for Class A (105°C)
meets all requirements of Class E (120°C)
• Manufactured in an ISO 9001:2015 and
ISO 14001:2015 certified Talema facility
• Fully RoHS & REACH Compliant
•
1.6VA - 50VA
Standards
• High quality manufacturing and testing in accordance
to EN61558, EN60065, EN60950, VDE 0805 & BS415
• Recognized to UL 5085, under family approval file E215495
• Recognized to UL 1950 & UL 6500
P o w er
VA
Part Number
2 x 115V
70000K
70001K
70002K
70003K
70004K
70005K
70010K
70011K
70012K
70013K
70014K
70015K
70020K
70021K
70022K
70023K
70024K
70025K
70030K
70031K
70032K
70033K
70034K
70035K
70040K
70041K
70042K
70043K
70044K
70045K
2 x 120V
72400K
72401K
72402K
72403K
72404K
72405K
72410K
72411K
72412K
72413K
72414K
72415K
72420K
72421K
72422K
72423K
72424K
72425K
72430K
72431K
72432K
72433K
72434K
72435K
72440K
72441K
72442K
72443K
72444K
72445K
Full Load
V
2x7
2x9
2 x 12
2 x 15
2 x 18
2 x 22
2x7
2x9
2 x 12
2 x 15
2 x 18
2 x 22
2x7
2x9
2 x 12
2 x 15
2 x 18
2 x 22
2x7
2x9
2 x 12
2 x 15
2 x 18
2 x 22
2x7
2x9
2 x 12
2 x 15
2 x 18
2 x 22
Secondary
Current
mA
114
89
67
53
44
36
229
178
133
107
89
73
357
278
208
167
139
114
500
389
292
233
194
159
714
556
417
333
278
227
Open
Circuit
V
2 x 8.9
2 x 11.6
2 x 15.4
2 x 19.3
2 x 23.4
2 x 28.2
2 x 10.2
2 x 13.0
2 x 17.3
2 x 21.4
2 x 25.7
2 x 31.3
2 x 9.7
2 x 12.4
2 x 17.0
2 x 21.3
2 x 25.5
2 x 30.5
2 x 9.5
2 x 12.2
2 x 16.2
2 x 20.3
2 x 24.3
2 x 29.7
2 x 8.3
2 x 10.8
2 x 14.4
2 x 18.0
2 x 21.7
2 x 26.3
P o w er
VA
Part Number
2 x 115V
70050K
70051K
70052K
70053K
70054K
70055K
70060K
70061K
70062K
70063K
70064K
70065K
70070K
70071K
70072K
70073K
70074K
70075K
70080K
70081K
70082K
70083K
70084K
70085K
2 x 120V
72450K
72451K
72452K
72453K
72454K
72455K
72460K
72461K
72462K
72463K
72464K
72465K
72470K
72471K
72472K
72473K
72474K
72475K
72480K
72481K
72482K
72483K
72484K
72485K
Full Load
V
2x7
2x9
2 x 12
2 x 15
2 x 18
2 x 22
2x7
2x9
2 x 12
2 x 15
2 x 18
2 x 22
2x7
2x9
2 x 12
2 x 15
2 x 18
2 x 22
2x7
2x9
2 x 12
2 x 15
2 x 18
2 x 22
Secondary
Current
mA
1071
833
625
500
417
341
1785
1377
1041
832
694
568
2500
1944
1458
1166
972
795
3571
2777
2083
1666
1388
1136
Open
Circuit
V
2 x 8.9
2 x 11.1
2 x 14.8
2 x 18.5
2 x 22.2
2 x 27.2
2 x 8.3
2 x 10.7
2 x 14.3
2 x 17.8
2 x 21.4
2 x 26.2
2 x 8.0
2 x 10.6
2 x 14.0
2 x 17.6
2 x 20.9
2 x 25.7
2 x 8.1
2 x 10.4
2 x 13.9
2 x 17.3
2 x 20.8
2 x 25.4
1.6
15
3.2
25
5.0
35
7.0
50
10
Notes:
Primaries and secondaries for parallel or series connection
Dimensions and schematic in next Page
Talema Group
•
Magnetic Components
•
www.talema.com
Toroidal PC Transformers
N o L o ad
R egulation
D elta
Volts/Sec.
(% )
29
43
40
34
20
23
19.0
17.7
15.5
•
1.6VA - 50VA
Secondary R ange (Max.)
Standard Outputs
(Electrical measurements @ 20°C ambient temperature)
P o w er
VA
1.6
3.2
5.0
7.0
10
15
25
35
50
Weight
Cu
gram
82
110
144
174
252
304
435
525
685
D elta
Temp
°C
10
20
29
25
24
27
28
31
30
Efficiency
%
77
70
68
74
82
80
83
81
86
No
L o ad
mA
(typ.)
1.0
1.5
2.0
3.0
3.0
4.0
5.0
7.0
8.0
230V
F u se
mA
32
32
50
63
80
100
160
200
315
VA
2.0
3.7
5.5
7.5
12.0
16.0
--
--
--
D elta
Volts/
sec.
%
60
80
80
70
60
60
--
--
--
D elta
Temp
°C
30
40
40
40
45
40
--
--
--
Efficiency
%
60
50
50
60
60
65
--
--
--
R ec. F u se
mA
32
50
63
80
100
125
--
--
--
Dimensions
Dimensions - 7XXXX Series
P o w er
VA
1.6
3.2
5.0
7.0
10
15
25
35
50
Dimensions
LxWxH
mm
39.6x39.6x18.5
44.7x44.7x19.5
49.7x49.7x19.5
49.7x49.7x23.1
55.0x55.0x26.0
60.0x60.0x26.3
60.0x60.0x37.5
72.0x72.0x37.5
82.4x82.4x37.5
Pin Layout
XY
mm
35.56
40.64
45.72
45.72
50.80
55.88
55.88
66.04
76.20
Pin Siz e
mm
1.0x0.5
1.0x0.5
1.0x0.5
1.0x0.5
1.0x0.5
1.0x0.5
1.0x0.5
Ø 1.3
Ø 1.3
Weight
gram
82
110
144
174
252
304
435
525
685
Pin
Availability
1 - 16
1 - 18
1 - 18
1 - 18
1 - 18
1 - 20
1 - 20
1 - 26
1 - 34
Pin Side View
2.54
5.08
5.08
5.08
6 7
5
20
28
5
M4 x 6
12
13
14
26 34
8
6
21 29
30 22
9 10
11
11
12
17
23
31
5.08
5.08
5.08
5.08
Specifications subject to change, Custom models available on request
•
For 230 volt operation, connect primaries in series by connecting
pins 5 & 4 together and apply 230 volts across pins 6 & 3
For 115 volt operation, connect primaries in parallel by connecting
pins 6 & 4 together and pins 5 & 3 together, apply 115 volts
across pins 6 & 5
To parallel the secondaries, connect pins 14 to 12 and 13 to 11 take
the output across pins 14 & 13
To place the secondaries in series, connect pins 13 to 12 and take
the output across pins 14 & 11
PRIM.
SEK.
W Y
27
19
4
3 2
3
1
4
•
32
24
18
13
33 25 16 15 14
•
5.08 5.08 5.08 5.08
X
L
L=B
•
Blind insert M4 x 6 deep 1.6VA - 25VA
M5 Through hole
35VA - 50VA
Talema Group
4321
4321
4321
4321
•
H
5
Magnetic Components
•
www.talema.com
Regional Locations - Design, Manufacturing, Sales & Marketing
Talema Group Regional Offices
North America
United States
(Sales & Marketing)
Talema Group, LLC
PO Box 935
900 Innovation Drive
Suite 120, Rolla
Missouri 65402
Tel: +1 573-303-3675
E-Mail:
sales@talemagroup.com
Web: www.talema.com
Asia
India
(Design, Manufacturing, Sales & Marketing)
Administrative Office
Talema Electronic India Private Limited
Door No. 221, 1st and 2nd Floor
KJ Plaza, Opp.to Vidya Mandir School
Meyanoor Main Road
Salem - 636 004 Tamil Nadu INDIA
Tel: +91 427 - 243 3100
Fax: +91 427 - 243 3109
E-Mail: talema@talemaindia.net
Web: www.talema.com
Factory
Premises
Talema Electronic India Private Limited
Plot Nos. 30, 31 Electrical and Electronic
Industrial Estate
Suramangalam
Salem - 636 005 Tamil Nadu INDIA
Tel: +91 427 - 243 3000
E-Mail: talema@talemaindia.net
Web: www.talema.com
Europe
Germany
(Design, Sales & Marketing)
Talema Elektronik GmbH
Sembdnerstr. 5
82110 Germering
Tel: +49 89 - 841 00 - 0
Fax: +49 89 - 841 00 25
E-Mail: info@talema.de
Web: www.talema.com
Ireland
(Design, Sales & Marketing)
Nuvotem TEO
Units W & X, Gweedore Business Park
Derrybeg, Letterkenny, Co. Donegal
Tel: +353 (0) 74 95 48666
Fax: +353 (0) 74 95 48139
E-Mail: info@nuvotem.com
Web: www.nuvotem.com
Czech Republic
(Design, Manufacturing, Sales & Marketing)
NT Magnetics s.r.o.
Chebská 27
322 00 Plzeñ
Tel: +420 377 - 338 351
Fax: +420 377 - 338 350
E-Mail: talema@talema.cz
Web: www.ntmagnetics.cz
Locations of Talema Group Regional Offices
Talema Group
•
Magnetic Components
•
www.talema.com
07/18
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