159

Revised: November 1, 2010 05:04 PM

©2010 Littelfuse, Inc

Specifications are subject to change without notice.

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

4 / 6 / 8 / 10 / 15 Amp Quadracs

QxxxxLTx Series

Figure 7: Surge Peak On-State Current vs. Number of Cycles

Note: xx = voltage

1

10

100

1000

110

100

1000

Surge Current Duration -- Full Cycles

Qxx15LT/Qxx15LTH

Qxx04LT

Qxx10LT/Qxx10LTH

Qxx08LT/Qxx08LTH

Qxx06LT/Qxx06LTH

Supply Frequency: 60Hz Sinusoidal

Load: Resistive

RMS On-State Current: [I

Value at Specific 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.

-8%

-6%

-4%

-2%

0%

2%

4%

6%

-40-20

020406080100

120

140

Junction Temperature (T

Figure 8: DIAC V

D.U.T.

MT2

MT1

C

T

V

C

120 V

60 Hz

R

L

∆V+

∆V-

V

C

+V

BO

-V

BO

Figure 9:Test Circuit

Figure 10:Test Circuit Waveform