3

Revised: December 9, 2011 01:32 PM

©2011 Littelfuse, Inc

Specifications are subject to change without notice.

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

Standard Bidirectional SIDACs

Kxxxzy Series

Figure 1: V-I Characteristics

-V

+I

+V

-I

0

1

2

3

4

5

6

7

8

9

0.6

1.01.4

1.8

2.2

2.6

3.0

3.4

3.8

Instantaneous On-state Voltage (v

Kxxx2G

Kxxx0G

Kxxx0E

Kxxx0S

T

Figure 2: On-state Current vs. On-state

Voltage (Typical)

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

CURRENT WAVEFORM: Sinusoidal

LOAD: Resistive or Inductive

CONDUCTION ANGLE:

See Basic SIDAC Circuit in Figure 12

Kxxx2G

Kxxx0G

Kxxx0E

Kxxx0S

RMS On-State Current [I

Figure 3: Power Dissipation vs. On-state Current

(Typical)

Pulse Base Width (t

1

10

100

1000

1.010.0100.0

1000.0

5 Hz

60 Hz

5 kHz

120 Hz

1 kHz

di/dt Limit Line

I

TM

t

O

1/f

Figure 4: Repetitive Peak On-state Current (I

vs. Pulse Width at Various Frequencies

1

10

100

110100

1000

Surge Current Duration -- Full Cycles

SUPPLY FREQUENCY: 60 Hz Sinusoidal

LOAD: Resistive

RMS ON-STATE CURRENT: I

Value at Specified Junction Temperature

Notes:

1) Blocking capability 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 5: Peak Non-repetitive Surge Current (I

vs. Number of Cycles

Figure 6: Normalized V

Temperature

-12%

-10%

-8%

-6%

-4%

-2%

0%

2%

4%

-40

-20

020406080100

120140

K2xx0E

K2xx0G

K2xx0S

Kxxx2G

K1xx0E

K1xx0G

K1xx0S

Junction Temperature (T