331
©2008 Littelfuse, Inc.
Revised: August 29, 2008
Teccor
®
brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
331
©2008 Littelfuse, Inc.
Teccor
®
brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
Kxxx1G Series
Multipulse™ SIDACs
Multipulse
TM
SIDACs
Kxxx1G Series
Description
The Multipulse
™
SIDAC is a voltage switch used in Metal-
Halide lamp ignition circuits as well as High Pressure
Sodium lamp ignition circuits for outdoor street and area
lighting. This robust solid state switch is designed to handle
lamp igniter applications requiring operation at ambient
temperatures up to 90°C where igniter circuit components
can raise SIDAC junction temperature up to 125°C, especially
when the lamp element is removed or ruptured. Its excellent
commutation time (t
COMM
) makes this robust product best
suited for producing multiple pulses in each half cycle of
50/60 Hz line voltage. The Multipulse
™
SIDAC is offered in
DO-15 axial leaded package.
Kxxx1G SIDAC has a repetitive off-state blocking voltage
(V
DRM
) of 180V to 270V minimum depending actual device
type. Blocking capability is ensured by glass passivated
junctions for best reliability. Package is epoxy encapsulation
with tin-plated copper alloy leads.
Features
Electrical Specifications
Symbol Parameters Test Conditions Min Max Unit
V
BO
Breakover/Trigger Voltage
K2201G
K2401G
K2501G
K3601G
200
220
240
340
230
250
280
380
V
V
DRM
Repetitive Peak Off-State Voltage
K2201G
K2401G
K2501G
K3601G
180
190
200
270
V
I
T(RMS)
On-State RMS Current, T
J
< 125ºC
50/60Hz
Sine Wave
1 A
I
H
Dynamic Holding Current, R=100 8
50/60Hz
Sine Wave
160 TYP mA
R
S
(V
BO
– V
S
)
Switching Resistance, R
S
=
________
(I
S
– I
BO
)
50/60Hz
Sine Wave
100
8
t
COMM
Commutation Time T
J
< 125ºC
See test circuit and
waveform in Figure 9
100 μsec
I
BO
Breakover Current
50/60Hz
Sine Wave
10 uA
I
TSM
Non-repetitive 1 cycle On-State peak value
60Hz
50Hz
20.0
16.7
A
di/dt Critical Rate of Rise of On-State Current 150 A/μsec
dv/dt Critical Rate of Rise of Off-State Voltage 1500 V/μsec
T
S
Storage Temperature Range -40 +125 °C
T
J
Max Operating Junction Temperature -40 +125 °C
R
RJL
Thermal Resistance Junction to lead 18 °C/W
Schematic Symbol
t"$DJSDVJUPSJFOUFE
t5SJHHFSJOH7PMUBHFPG
to 380V
t$PNQMJBOU
Applications
Typical application circuit presented in Figure 10 of this data
sheet (Typical Metal Halide Ignitor Circuit).
