102

Revised: November 1, 2010 05:04 PM

©2010 Littelfuse, Inc

Specifications are subject to change without notice.

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

12 Amp Alternistor (High Communitation) Triacs

Qxx12xHx Series

Figure 8: On-State Current vs. On-State Voltage

(Typical)

0

2

4

6

8

10

12

14

16

18

20

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

Positive or Negative Instantaneous On-State Voltage

(V

T

Figure 7: Maximum Allowable Ambient Temperature

vs. On-State Current

20

30

40

50

60

70

80

90

100

110

120

0.

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

RMS On-State Current [I

CURRENT WAVEFORM: Sinusoidal

LOAD: Resistive or Inductive

CONDUCTION ANGLE: 360

FREE AIR RATING - No HEAT SINK

Qxx12LH5

Qxx12RH5

1

10

100

1000

1000

10

1

Surge Current Duration - Full Cycles

100

Figure 9: Surge Peak On-State Current vs. Number of Cycles

Supply Frequency: 60Hz Sinusoidal

Load: Resistive

RMS On-State Current [I

Rated Value at 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.