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

Vishay Dale

Document Number: 34072

For technical questions contact magnetics@vishay.com

www.vishay.com

Revision: 10-Aug-06

155

Low Power Transformers

Dual Primary - Dual secondary

115/230 Volts

RoHS

COMPLIANT

ELECTRICAL SPECIFICATIONS

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

Output Power Rating:

PL-22, PL-42 = 1.5 VA

PL-23, PL-43 = 4.5 VA

PL-24, PL-44 = 10.0 VA

Dielectric

Strength:

Between

primary

windings

and

secondary windings and core:

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

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

Between secondary windings to core: All units = 1000 V

From primary to primary windings: All units = 500 V

From secondary to secondary windings: All units = 500 V

MECHANICAL SPECIFICATIONS

Temperature Class:

PL22, PL-23, PL-24: Insulation Class A, 105 °C

PL-42, PL43, PL-44: Insulation Class B, 130 °C

A UL approved Class B Insulation System can be funished

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

FEATURES

• PC pin mounting

• Provides isolation from power line

• Dual Primary for operation at 115 V or 230 V,

50/60 Hz

• 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

speciality products

• Laminated construction for low-cost industrial applications,

including power supplies, controls and instrumentation

• Mounting bracktes 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

PL-22, PL-23, PL-24

PL-42, PL-43, PL-44

SCHEMATICS

Basic Style

1

4

5

6

8

7

2

3

Options

1

2

3

4

Secondary

Series Connected

5

6

7

8

5

6

7

8

1

2

3

4

Primary Series

Connected

230 V

Input

Volts

Output

Secondary

Parallel Connected

7

8

5

1

2

6

3

4

Primary

Parallel Connected

Volts

Output

7

6

8

4

2

5

3

115 V

Input

1