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WorldPower Series     UR   cUR   cURus   CE

International Microprocessor Power Transformer
Series: 143P

Standard Models        Schematics        Dimensions       

WorldPower Series 143P Photo
  • Power Rating 20VA to 56VA
  • Dielectric strength - 4000VRMS Hipot
  • Primaries - Dual primaries (115/230V - 50/60Hz)
    Input range (100V to 130V to 260V - 50/60Hz)
  • Secondaries - Dual complementary output
    ( 5VDC with +/- 12VDC or 5VDC with +/- 15VDC)
  • Electrosatic Shield - Not necessary, split bobbin
  • Insulation - Class F insulation
  • Flammability Rating - Bobbin/Shroud UL 94V0
  • Amirican ad Canadian agency approvals; File #E180353
  • CE marked
International triple output transformer. Fram mount with identical features as our P41 Series transformers.

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Schematics

dot Indicates Like Polarity
Primaries are designed to be used simultaneously. That is, they must be used either Series or Parallel connected (as one winding). Same applies to secondaries also.

Mechanical Drawings
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WorldPower Series 14P Mechanical Drawings

Dimensions

DIMENSIONS Sq.Pin
Dim.
MTG.DIM. Mtg
Screw
WGT
(VA)
Size
L W H A B C D M N P Size Qty.
20 2.25"
57.2mm
1.87"
47.6mm
1.62"
41.3mm
0.400"
10.2mm
0.400"
10.2mm
1.460"
37.1mm
0.200"
5.1mm
0.038
0.97mm
1.50
38.1mm
-
-
-
-
#4 2 0.90lbs
0.41kg
30 2.62"
66.7mm
2.18"
55.5mm
1.56"
39.7mm
0.550"
13.9mm
0.275"
7.0mm
1.680"
42.7mm
0.275"
7.0mm
0.045
1.14mm
-
-
1.75
44.5mm
2.18
55.4mm
#6 4 1.15lbs
0.52kg
56 3.00"
76.2mm
2.50"
63.5mm
1.81"
46.0mm
0.600"
15.2mm
0.300"
7.6mm
1.900"
48.3mm
0.300"
7.6mm
0.045
1.14mm
-
-
2.00
50.8mm
2.50
63.5mm
#6 4 1.70lbs
0.77kg

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Standard Models

Part Number VA (Size) DC Output Suggested Components
Regulator I Regulator II C1 C3 IC1(3) IC2(3) IC3(3) D1(4) D2(4)
143P-20-512 20 5V @ 750mA +/- 12V @ 200mA 2.3 KMFD
@
50 VDC
600 MFD
@
50 VDC
LM-323K-5 LM-340K-12 LM-320K-12 PE20 PF20
143P-20-515 20 5V @ 750mA +/- 15V @ 175mA LM-323K-5 LM-340K-15 LM-320K-15 PE20 PF20
143P-30-512 30 5V @ 1.25A +/- 12V @ 250mA 4.1 KMFD
@
15 VDC
1.1 KMFD
@
50 VDC
LM-323K-5 LM-340K-12 LM-320K-12 PE20 PF20
143P-30-515 30 5V @ 1.25A +/- 15V @ 200mA 600 MFD
@
50 VDC
LM-323K-5 LM-340K-15 LM-320K-15 PE20 PF20
143P-56-512 56 5V @ 3A +/- 12V @ 300mA 10.0 KMFD
@
15 VDC
1.1 KMFD
@
50 VDC
LM-338(2) LM-340K-12 LM-320K-12 PP20 PF20
143P-56-515 56 5V @ 3A +/- 15V @ 250mA LM-338(2) LM-340K-15 LM-320K-15 PP20 PF20
Note(1): Output capacitors C2&C4 are required to stabilize regulators. Values can be 1MFDmin. tantium or 10MFDmin. electrolytic 20Vmin.
Note(2): LM-338 is an adjustable regulator and MFR's specifications(National Semiconductor)should be considered for values of external                 components.
Note(3): All ICs are National Semiconductor types.
Note(4): All bridres are EDI types.
Ask for specials. Use our on-line custom transformer design form or contact us.
Custom variations are quoted and shipped promptly.
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We continually improve our products, therefore specifications are subject to change without notice. PowerVolt does not assume liability arrising out of use or misuse of any product. PowerVolt does not recommend the use of its products in applications wherin a failure or malfunction may directly threaten life or cause human injury. The user of PowerVolt products assumes all risk of such use and indemnifies PowerVolt against all damages.

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