Datasheet

* Not suitable for PCB-mounting.
Explanations:
– t
r
rise time at given load resistor R and 70% of the output pulse height.
– L
p
primary inductance measured at 1kHz (secondary coile open).
– L
str
stray inductance measured at the secondary side, short circuit at the primary side. If there are several secondary coils only one at the time is connected (measuring frequency 10kHz).
– The ignition current is a set peak value where the voltage drop over the coil resistance is still insignificant (mostly below 1V).
Pulse transformer selection table
Pulse transformer Turns ratio Ignition
current
Voltage Voltage
time area
Rise
time
Inductance Resistance Coupling
capacitance
Input/ Output
connections
Weight
I
ign
[A]
U
nom
[V]
U
p
[kV]
V
0t
[Vµs]
t
r
[µs]
L
p
[mH]
L
str
[µH]
R
p
[Ω]
R
s
[Ω]
C
k
[pF] [g]
IT 155 1:1 0.1 500 4 480 1 5 85 1.2 1.2 6 02 13
IT 245 1:1 0.1 750 4 500 1.2 8 100 1.48 1.48 10 02 6
IT 237 1:1 0.25 500 2.5 1100 1 25 35 1.9 2.2 50 02 14
IT 239 1:1 0.25 1000 6 300 2.3 3 80 0.9 0.9 5 02 13
IT 255 1:1 0.25 750 4 250 1.1 2.2 40 0.8 0.8 8 02 6
IT 258 1:1 1 750 3.2 250 0.25 2.5 3 0.62 0.75 80 02 6
IT 370 1:1 1 1000 5 4000 0.6 0.3 6 0.16 0.18 40 02 71
IT 364* 1:1 3 3000 8 5000 1.7 1.5 10 0.16 0.14 35 05 220
IT 246 2:1 0.1 750 4 200 0.4 7 35 2.1 1.1 7 02 6
IT 248 2:1 0.25 750 3.2 350 2.2 17 80 3.2 1.6 9 02 6
IT 260 3:1 0.1 500 3.2 200 0.3 12 30 2 0.8 8 02 6
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