
Models PT-10 and PT-20
www.vishay.com Vishay Dale
Not for New Designs
Revision: 08-Aug-16 1Document Number: 34073
For technical questions, contact: magnetics@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Through-Hole Transformers
Pulse, Trigger Type
FEATURES
• Choice of printed circuit or bobbin-type
configurations
• Designed to transfer high amplitude or long
duration pulses without saturation
• Designed for low-cost trigger source isolation in half and
full wave SCR power control circuits, including motor
speed controls, heater controls and incandescent lighting
controls
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
Note
(1) Standard items in PT-10 Model. Other dash numbers available on request. All dash numbers standard in PT-20 model
ELECTRICAL SPECIFICATIONS
Primary inductance values: from 200 μH to 5000 μH
Turns ratio: 1:1, 1:1:1, 2:1, 2:1:1 and 5:1
Temperature range: -10 °C to +70 °C
Dielectric test at 60 Hz: 1600 VRMS (windings to case)
AC line voltage at 60 Hz: 240 VRMS maximum in test circuits
shown
MATERIAL SPECIFICATIONS
Bobbin: nylon
Leads: tinned, solderable
PT-10 = polyurethane insulated magnet wire for clip or
bracket mounting
PT-20 = tinned copper 0.025 [0.635] sq. for printed circuit
mounting
Header: thermoset plastic
Covering: thermoplastic
STANDARD ELECTRICAL SPECIFICATIONS
DASH
NUMBER
TURNS
RATIO FIGURE
PRIMARY
IND. MIN.
(μH)
LEAKAGE
IND. MAX.
(μH)
INTERWINDING
CAPACITY MAX.
(pF)
DCR MAX.
()
UNIPOLAR
ET (V-μs)
101 (1) 1:1 ± 10 % 1/3 200 3 800 1.5-1.5 570
102 (1) 1:1 ± 10 % 1/3 500 6 1500 4.5-4.5 912
103 (1) 1:1 ± 10 % 1/3 1000 12 2000 8-8 1283
104 1:1 ± 10 % 1/3 2000 13 2800 12-12 1853
105 1:1 ± 10 % 1/3 5000 15 3500 18-18 2850
106 (1) 1:1:1 ± 10 % 2/4 200 3 800 2-2-2 570
107 1:1:1 ± 10 % 2/4 500 6 1500 6-6-6 912
108 1:1:1 ± 10 % 2/4 1000 12 2000 10-10-10 1283
109 1:1:1 ± 10 % 2/4 2000 (1) 13 2800 15-15-15 1853
110 1:1:1 ± 10 % 2/4 5000 15 3500 27-27-27 2850
111 (1) 2:1 ± 10 % 1/3 500 6 1000 4-2 912
112 (1) 2:1 ± 10 % 1/3 1000 10 1300 10-2 1288
113 2:1 ± 10 % 1/3 2000 12 1800 10-5 1881
114 2:1 ± 10 % 1/3 5000 15 2400 18-10 2850
115 (1) 2:1:1 ± 10 % 2/4 200 8 700 4-2-2 570
116 (1) 2:1:1 ± 10 % 2/4 500 11 1000 6-2-2 912
117 (1) 2:1:1 ± 10 % 2/4 1000 15 1300 5-2-2 1311
118 2:1:1 ± 10 % 2/4 2000 60 2000 10-5-5 1881
119 2:1:1 ± 10 % 2/4 5000 75 2100 20-10-10 2850
120 (1) 5:1 ± 10 % 1/3 5000 1500 400 19-3 2850
121 5:1:1 ± 10 % 2/4 5000 1500 400 20-4-4 2850