MIL-PRF-19500P
APPENDIX B
TABLE B-II. Letter symbol for thyristors.
Total
DC value,
DC value with
Instantaneous
Maximum
RMS value
no alternating
alternating
total value
(peak)
component
component
total value
On-state current
IT(RMS)
IT
IT(A)
iT
ITM
Repetitive peak,
ITRM
on-state current
Surge (nonrepetitive)
ITSM
on-state current
Overload on-state
IT(OV)
current
Breakover current
I(BO)
i(BO)
Off-state current
ID(RMS)
ID
ID(A)
iD
IDM
Repetitive peak,
IDRM
off-state current
Reverse current
IR(RMS)
IR
IR(A)
iR
IRM
Repetitive peak,
IRRM
reverse current
Reverse breakdown
I(BR)R
i(BR)R
current
On-state voltage
VT(RMS)
VT
VT(A)
vT
VTM
Breakover voltage
V(BO)
v(BO)
Off-state voltage
VD(RMS)
VD
VD(A)
vD
VDM
Minimum on-state
VT(MIN)
voltage
Working peak,
VDWM
off-state voltage
Repetitive peak
VDRM
off-state voltage
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