Page 55 - kV-kA ABB_Broschure_Power_Semiconductors_2021_EN

SYMBOLS 55
Further information
Symbols
Symbol Description
di/dtmax Maximum rate of rise or decline of on-state current dV/dt Maximum rate of rise of off-state voltage
Fm Mounting force
IC DC collector current
ICM Peak collector current
IF Diode nominal mean forward current
IFAVM Max. average forward current (180° sine wave)
IFSM Max. surge peak forward current for a 180° sine wave; no voltage reapplied after surge IRM Max. peak avalanche current for a single 180° sine wave pulse
IRMS Max. rms on-state current (AC full wave)
Irr Max. (typ. for IGBT diode) reverse recovery current
IT On-state current thyristor
ITAVM Max. average on-state current (180° sine wave)
ITGQM Max. turn-off current
ITSM Max. surge peak on-state current for a 180° sine wave; no voltage reapplied after surge PRSM Max. surge avalanche power dissipation (single pulse)
Qrr Max. reverse recovery charge
RDS(on) Drain-source on resistance
rF Forward slope resistance
rT On-state slope resistance
RthCH Thermal resistance case to heatsink
RthJC Thermal resistance junction to case
RthJH Thermal resistance junction to heatsink
TC Case temperature
tq Turn-off time
TVJ Junction temperature
TVJM Max. junction temperature
VCES IGBT collector-emitter voltage
VCEsat Collector-emitter saturation voltage
VDC Max. DC voltage rating for 100 FIT, 100 percent duty
VDRM Max. repetitive peak forward blocking voltage
VDSS Drain-source voltage
VF Forward voltage drop
VF0 Forward threshold voltage
VFmax Max. forward voltage drop
VFmin Min. forward voltage drop
VGIN Input voltage of IGCT gate drive
Symmetrical peak avalanche voltage at a sinusoidal current pulse with 20 A peak, 10 μs pulse width and 60 °C VR junction temperature
VRM Max. repetitive peak blocking voltage
VRRM Max. repetitive peak reverse blocking voltage VRSM Max. surge peak reverse blocking voltage
VT On-state voltage drop
VT0 On-state threshold voltage