212

Revised: July 29, 2010 09:54 AM

©2010 Littelfuse, Inc

Specifications are subject to change without notice.

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

4 Amp Sensitive SCRs

Sxx04xSx Series

Figure 7: Maximum Allowable Case Temperature

vs. RMS On-State Current

Figure 8: Maximum Allowable Case Temperature

vs. Average On-State Current

Figure 9: Maximum Allowable Ambient Temperature

vs. RMS On-State Current

Figure 10: Maximum Allowable Ambient Temperature

vs. Average On-State Current

Note: xx = voltage, y = sensitivity

70

75

80

85

90

95

100

105

110

115

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

CURRENT WAVEFORM: Sinusoidal

LOAD: Resistive or Inductive

CONDUCTION ANGLE: 180°

RMS On-State Current [I

Sxx04VSy

Sxx04DSy

70

75

80

85

90

95

100

105

110

115

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Average On-State Current [I

CURRENT WAVEFORM: Sinusoidal

LOAD: Resistive or Inductive

CONDUCTION ANGLE: 180°

Sxx04VSy

Sxx04DSy

0

20

40

60

80

100

120

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

CURRENT WAVEFORM: Sinusoidal

LOAD: Resistive or Inductive

CONDUCTION ANGLE: 180°

FREE AIR RATING

RMS On-State Current [I

Sxx04VSy

0

20

40

60

80

100

120

0.0

0.2

0.4

0.6

0.8

CURRENT WAVEFORM: Sinusoidal

LOAD: Resistive or Inductive

CONDUCTION ANGLE: 180°

FREE AIR RATING

Sxx04VSy

Average On-State Current [I

Figure 11: Peak Repetitive Capacitor Discharge Current

Figure 12: Peak Repetitive Sinusoidal Pulse Current

0

20

40

60

80

100

120

140

160

180

110

100

1 Hz

12 Hz

60 Hz

Pulse Current Duration (t

I

TRM

t

W

0

20

40

60

80

100

120

140

160

180

1

10

100

1 Hz

12 Hz

60 Hz

Pulse Current Duration (t

I

TM

t

W