4

Revised: 11/28/16

Specifications are subject to change without notice.

© 2016 Littelfuse, Inc.

Standard Unidirectional SIDACs

Figure 10: Maximum Allowable Ambient Temperature

vs. RMS On-State Current

1

10

20

30

40

50

60

70

80

90

100110

120

130

Junction Temperature (T

140

150

Figure 11: Normalized Repetitive Peak Breakover

Current (I

100-250 V ac

60 Hz

Scope

Push to test

S1

Switch to test

in each direction

100 Ω

1%

Device

Under

Test

S1

Scope Indication

Trace Stops

Figure 12: Dynamic Holding Current Test Circuit for

SIDACs

Figure 13: Basic SIDAC Circuit

120-145

˚

Conduction

Angle

Load

100-250 Vac

60 Hz

VDC(IN) ≥ VB0

VC

IL

RL

R

SIDAC

(a) Circuit

Rmax≤

VIN - VBO

IBO

Rmin≥

VIN - VTM

IH (MIN)

(b) Waveforms

VBO

VC

IL

t

t

C

Figure 14: Relaxation Oscillator Using a SIDAC

RMS On-State Current [I

20

40

60

80

100

120

140

160

00.2

0.40.6

0.81

K0820S1U~

K2000S1U

K2200GU~

K2500GU

K2200S1U~

K2500S1U

K0820GU~

K2000GU

CURRENT WAVEFORM: Sinusoidal - 60Hz

LOAD: Resistive or Inductive

FREE AIR RATING

Figure 9: Maximum Allowable Case Temperature

vs. RMS On-State Current

RMS On-State Current [I

80

90

100

110

120

130

140

150

160

00.2

0.40.6

0.8

1

1.2

K2200GU~

K2500GU

K2200S1U~

K2500S1U

K0820GU~

K2000GU

K0820S1U~

K2000S1U