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PL-22, -23, -24, -42, -43, -44

Vishay Dale

Document Number 34072

Revision 11-Dec-02

For technical questions, contact: Magnetics@vishay.com

PL-22, PL-23, PL-24

PL-42, PL-43, PL-44

FEATURES

• PC pin mounting.

• Provides isolation from power line.

• Dual Primary for operation at 115V or 230V, 50/60Hz.

• Dual Secondary for series connection obtains twice winding voltage with

center tap or for parallel connection obtains twice winding current rating.

• Modification to these standard items are available as specialty products.

• Laminated construction for low-cost industrial applications, including power

supplies, controls and instrumentation.

• Mounting brackets and bobbin standoff are available.

• PL-22, PL-23, PL-24: Concentric windings for increased coupling, decreased

leakage reactance and improved regulation.

• PL-42, PL-43, PL-44: Split-section winding for increased dielectric strength

between primary and secondary windings plus reduced interwinding

capacitance.

ELECTRICAL SPECIFICATIONS

Input Voltage: 115V 60Hz or 230V 50-60Hz.

Output Power Rating:

PL-22, PL-42 = 1.5VA.

PL-23, PL-43 = 4.5VA.

PL-24, PL-44 = 10.0VA.

Dielectric Strength: Between primary windings and

secondary windings and core:

PL-22, PL-23, PL-24 = 1500V.

PL-42, PL-43, PL-44 = 2500V.

Between secondary windings to core: All units = 1000V.

From primary to primary windings: All units = 500V.

From secondary to secondary windings: All units = 500V.

MECHANICAL SPECIFICATIONS

Temperature Class:

PL-22, PL-23, PL-24: Insulation Class A, 105

°C.

PL-42, PL-43, PL-44: Insulation Class B, 130

°C;

A UL approved Class B Insulation System can be

furnished on request.

Terminals: Brass, solder coated.

Weight: (reference)

PL-22, PL-42 = 100 grams.

PL-23, PL-43 = 160 grams.

PL-24, PL-44 = 240 grams.

Low Power Transformers

Dual Primary - Dual secondary

115/230 Volts

SCHEMATICS

Basic Style

Options

1

2

3

4

Secondary

Series Connected

5

6

7

8

5

6

7

8

1

2

3

4

Primary Series

Connected

230V

Input

Volts

Output

1

4

5

6

8

7

2

3

Secondary

Parallel Connected

7

8

5

1

2

6

3

4

Primary

Parallel Connected

Volts

Output

7

6

48

2

15

3

115V

Input