Models PL-22, -23, -24, -42, -43, -44
Low Power Transformers
Dual Primary - Dual secondary
115/230 Volts
FEATURES
PL-22, PL-23, PL-24
Vishay Dale
•
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
•
PL-42, PL-43, PL-44:
Split-section winding for increased dielectric strength
between primary and secondary windings plus reduced interwinding
capacitance.
SCHEMATICS
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
230V
Input
1
2
3
4
Primary Series
Connected
1
2
3
4
Basic Style
5
6
7
8
Options
5
6
7
8
1
2
3
4
Secondary
Series Connected
6
7
5
Volts
Output
8
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.
115V
Input
4
3
1
5
2
6
7
8
Primary
Parallel Connected
1
2
3
4
Secondary
Parallel Connected
6
5
7
Volts
Output
8
Document Number 34072
Revision 29-Apr-99
www.vishay.com
155
Models PL-22, -23, -24, -42, -43, -44
Vishay Dale
DIMENSIONAL CONFIGURATIONS
(Reference) [Numbers in brackets indicate millimeters]
Basic Style
A
1 2 3 4
B
8 7 6 5
1 2 3 4
.150
[3.81]
Min.
.041
[1.04]
Typ.
C
D
E
PC Terminal
(Plug in
Mounting)
8 7 6 5
“A” Type of Mounting Frame
C
L
8 7 6 5
1 2 3 4
.250
[6.35]
Typ.
.031 [.787]
2 Places
F
2 Places
“B” Type of Mounting Frame
8 7 6 5
1 2 3 4
.188
[4.78]
Dia.
2 Holes
C
L
G
H
MODEL
PL-22
PL-42
PL-23
PL-43
PL-24
PL-44
A
1.43
[36.32]
1.68
[42.67]
1.93
[49.02]
B
1.20
[30.48]
1.38
[35.05]
1.64
[41.66]
C
.200
[5.08]
.250
[6.35]
.250
[6.35]
D
1.19
[30.23]
1.30
[33.02]
1.48
[37.59]
E
1.0
[25.40]
1.10
[27.94]
1.30
[33.02]
F
.125
[3.18]
.125
[3.18]
.188
[4.78]
G
1.75
[44.45]
2.0
[50.80]
2.38
[60.45]
H
2.12
[53.85]
2.44
[61.98]
2.88
[73.15]
PART MARKING
HOW TO ORDER
PL-22
MODEL
01
OUTPUT VOLTAGE
AND CURRENT
A
MOUNTING FRAME
(If not required, leave blank.)
B
FOR BOBBIN STANDOFF
(If not required, leave blank.)
.063 [1.60mm]
Bobbin Standoff
— Vishay Dale
— Model
— Date code
Special design not listed, available on request.
Document Number 34072
Revision 29-Apr-99
www.vishay.com
157
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