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ThyrisTors
World Products, LLC 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com
Rev. 3.1 (11.23.10)
2 | Thyristors
Symbol
Characteristic
Value
VBO
Max Breakover
Voltage
The maximum voltage across the device in or at breakdown measured
under a specified voltage and current rate of rise.
VBR
Min Breakover Voltage
The minimum voltage at which the device switch-on begins and
significant current flows.
IBO
Breakover Current
The instantaneous current flowing at the breakover voltage. (VBO)
IH
Holding Current
The minimum current required to maintain the device in the on-state.
IT
On-state Current
The current through the device in the on-state condition.
VT
On-state Voltage
The voltage across the device in the on-state condition at a specified
current. (IT)
VDRM
Rated Repetitive Peak
Off-state Voltage
Rated maximum (peak) continuous voltage that may be applied in the
off-state condition.
IDRM
Repetitive Peak Off-
state Current
The maximum (peak) value of the current that results from the application
of (VDRM)
IPPS
Non-Repetitive Peak
Pulse Current
Rated maximum value of peak impulse current of specified amplitude and
waveshape that may be applied without damage to the device under test.
ITSM
Non-Repetitive Surge
Peak On-state Current
Rated maximum value of AC current, at a given frequency, which may be
applied for specified time or number of cycles.
di/dt
Critical Rate of Rise of
On-state Current.
Rated value of the rate of rise of current that the device can withstand
without damage.
dv/dt
Critical Rate of Rise of
Off-state Voltage.
The maximum rate of rise of voltage (below VDRM) that will not cause
switching from the off-state to the on-state
Definitions
IPPS
ITSM
IT
IBO
IH
IBR
IDRM
VT
VDRM
VBO
VBR
+V
-I
-V
+I