150

Revised: June 24, 2011 04:57 PM

©2011 Littelfuse, Inc

Specifications are subject to change without notice.

Please refer to http://www.littelfuse.com for current information.

40 Amp Alternistor (High Commutation) Triacs

Qxx40xx Series

110

100

1000

10

Surge Current Duration – Full Cycles

1

100

1000

Figure 8: Surge Peak On-State Current vs. Number of Cycles

Supply Frequency: 60Hz Sinusoidal

Load: Resistive

RMS On-State [I

Specific Case Temperature

Notes:

1) Gate control may be lost during and

immediately following surge current interval.

2) Overload may not be repeated until junction

temperature has returned to steady-state

rated value.

Figure 7: On-State Current vs. On-State Voltage (Typical)

T

0

10

20

30

40

50

60

70

80

90

0.6

0.8

1.0

1.2

1.4

1.6

Positive or Negative Instantaneous On-State Voltage (v

Note: xx = voltage