WorldPower Series

International Microprocessor Power Transformer
Series: 143P

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

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.

WorldPower Series

International Microprocessor Power Transformer Series: 143P

International Microprocessor Power Transformer
Series: 143P