
Transformers
Trigger, SCR Isolation
FEATURES
Designed for low-cost trigger source isolation in SCR power control circuits.
Small physical size and low profile provide packaging advantages.
Designed to transfer high amplitude or long duration pulses without saturation.
Industrial and commercial applications include motor speed controls, lighting
controls and heater controls.
Interchangeable. Designed for circuit board mounting using same mounting dimensions as
11Z and PT-20 models.
www.vishay.com
1
For technical questions, contact: Magnetics@vishay.com
Document Number: 34074
Revision: 10-Aug-06
PT-50
Vishay Dale
STANDARD ELECTRICAL SPECIFICATIONS
DASH
NUMBER
RATIO
INPRIMARY
MIN. (μH)
101
1:1 ± 10%
200
102
1:1 ± 10%
500
103
1:1 ± 10%
1000
104
1:1 ± 10%
2000
105
1:1 ± 10%
5000
106
2:1 ± 10%
500
107
2:1 ± 10%
1000
108
2:1 ± 10%
2000
109
2:1 ± 10%
5000
110
5:1 ± 10%
5000
TURNS
LEAKAGE
INDUCTANCE
MAX. (μH))
3
6
12
13
15
6
10
12
15
1500
INTERWINDING
CAPACITY
MAX. (pF))
800
1500
2000
2800
3500
1000
1300
1800
2400
400
DCR
MAX.
(Ohms)
1.5-1.5
4.5-4.5
8.0-8.0
12-12
18-18
4-2
10-2
10-5
18-10
19-3
UNIPOLAR
ET (V-μSEC)
570
912
1283
1853
2850
912
1288
1881
2565
2850
ELECTRICAL SPECIFICATIONS
Primary Inductance Values
: From
200 μH to 5000 μH
Turns Ratio:
1:1, 2:1 and 5:1
Temperature Range:
- 55 °C to
+ 105 °C
Dielectric Test at 60 Hz:
1600 V
RMS (Windings to core)
AC Line Voltage at 60 Hz:
240 V
RMS maximum in test circuits
shown
MATERIAL SPECIFICATIONS
Bobbin:
Glass-filled nylon
Terminals:
0.025" [0.635] square
tinned copper
Material Rating:
+ 105 °C Class A
DIMENSIONAL CONFIGURATIONS
[Numbers in brackets indicate millimeters]
CIRCUIT DIAGRAM
PART MARKING
- Vishay Dale
- Model
- Dash number
RoHS
COMPLIANT
Dot identifies
#1 Terminal
0.780
[19.8]
Max.
0.600
[15.24]
0.650
[16.5]
2
0.500
[12.70]
3
1
4
0.640
[16.26]
Max.
Terminal Numbers
For Ref. Only
1
4
SEC.
3
2
PRI.
Schematic
0.250 [6.35]
Min.
0.025 [0.635]
Sq. Terminals Typ.
Transformer Coupled Breakdown Diode Triggering Circuit
Load
Line