3

Revised: 08/11/15

Specifications are subject to change without notice.

©2015 Littelfuse, Inc

Standard Unidirectional SIDACs

Kxxx0yU SIDAC Series

3

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 5: Repetitive Peak On-state Current(ITRM)

vs. Pulse Width at Various Frequencies of

K0820yU/K0900yU

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 4: Peak Non-repetitive Surge Current (I

vs. Number of Cycles

Figure 7: Normalized V

Temperature

Junction Temperature (T

-8%

-6%

-4%

-2%

0%

2%

4%

6%

8%

10%

-40.00.0

40.0

80.0

120.0

160.0

K0xx0yU

K1xx0yU

K2000yU

K2200yU~K2500yU

Figure 8: Normalized DC Holding Current

vs. Junction Temperature

0.0

0.5

1.0

1.5

2.0

-40

-1510356085110

Junction Temperature (T

125

0.0

0.10.2

0.30.4

0.50.6

0.71.0

0.0

0.2

0.4

0.6

0.8

1.0

1.2

RMS On-state Current [I

0.80.9

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 6: Repetitive Peak On-state Current (ITRM)

vs. Pulse Width at Various Frequencies of

K1050yU~K2500yU