© 2016 Littelfuse, Inc.

Specifications are subject to change without notice.

Revised: 04/30/16

25 Amp Standard & Alternistor (High Commutation) Triacs

Figure 5: Power Dissipation (Typical) vs. RMS

On-State Current

Figure 6: Maximum Allowable Case Temperature

vs. RMS On-State Current

0

20

40

60

80

100

120

0.00.5

1.01.5

2.02.5

RMS On-State Current [I

CURRENT WAVEFORM: Sinusoidal

LOAD: Resistive or Inductive

CONDUCTION ANGLE: 360°

FREE AIR RATING

Figure 7: Maximum Allowable Ambient Temperature vs. RMS On-State Current (TO-220 packages only)

10

100

1000

110

100

1000

Surge Current Duration -- Full Cycles

Qxx25R5

Qxx25N5

Qxx25P5/Qxx25R6

Qxx25L6/Qxx25NH6

Qxx25K6/Qxx25J6

Qxx25RH5/Qxx25LH5

Qxx25NH5

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

SUPPLY FREQUENCY: 60 Hz Sinusoidal

LOAD: Resistive

RMS On-State Current: [I

Specified 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.

0

5

10

15

20

25

30

35

05

10

15

20

25

RMS On-State Current [I

Qxx25R5

Qxx25N5

CURRENT WAVEFORM: Sinusoidal

LOAD: Resistive or Inductive

CONDUCTION ANGLE: 360°

Qxx25P5/Qxx25R6

Qxx25L6/Qxx25NH6

Qxx25K6/Qxx25J6

Qxx25RH5/Qxx25LH5

Qxx25NH5

50

60

70

80

90

100

110

120

130

RMS On-State Current [I

05

10

15

20

25

30

CURRENT WAVEFORM: Sinusoidal

LOAD: Resistive or Inductive

CONDUCTION ANGLE: 360°

Qxx25R5

Qxx25N5

Qxx25K6

Qxx25J6

Qxx25L6

Qxx25LH5

Qxx25P5

Qxx25R6

Qxx25NH6

Qxx25RH5

Qxx25NH5