MAC4DHM
Symbol
VDRM
IDRM
VRRM
IRRM
VTM
IH
Voltage Current Characteristic of Triacs
(Bidirectional Device)
+ Current
Parameter
Peak Repetitive Forward Off−State Voltage
Peak Forward Blocking Current
Peak Repetitive Reverse Off−State Voltage
Peak Reverse Blocking Current
Maximum On−State Voltage
Holding Current
IRRM at VRRM
on state
IH
Quadrant 3
MainTerminal 2 −
VTM
VTM
IH
off state
Quadrant 1
MainTerminal 2 +
+ Voltage
IDRM at VDRM
Quadrant Definitions for a Triac
MT2 POSITIVE
(Positive Half Cycle)
+
(+) MT2
(+) MT2
Quadrant II
IGT −
(−) IGT
GATE
MT1
REF
(−) MT2
(+) IGT
GATE
MT1
REF
(−) MT2
Quadrant I
+ IGT
Quadrant III
(−) IGT
GATE
MT1
REF
(+) IGT
GATE
MT1
REF
Quadrant IV
−
MT2 NEGATIVE
(Negative Half Cycle)
All polarities are referenced to MT1.
With in−phase signals (using standard AC lines) quadrants I and III are used.
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