1.5SMC6.8AT3 Series
100
PULSE WIDTH (t ) IS DEFINED
P
NONREPETITIVE
AS THAT POINT WHERE THE PEAK
CURRENT DECAYS TO 50%
t ≤ 10 ms
rꢀ
PULSE WAVEFORM
SHOWN IN FIGURE 2
OF I .
PP
100
50
0
PEAK VALUE − I
PP
10
I
PP
2
HALF VALUE −
t
P
1
0.1 ms 1 ms
10 ms
100 ms
t , PULSE WIDTH
1 ms
10 ms
0
1
2
3
4
t, TIME (ms)
P
Figure 1. Pulse Rating Curve
Figure 2. Pulse Waveform
160
1000
500
V
BR
ꢀ(NOM)ꢀ=ꢀ6.8ꢀTOꢀ13ꢀV
20ꢀV
140
120
T ꢀ=ꢀ25°C
P
L
t ꢀ=ꢀ10ꢀms
43ꢀV
24ꢀV
200
100
50
75ꢀV
120ꢀV
100
80
180ꢀV
20
10
60
40
20
0
5
2
1
0.3
0.5 0.7
1
2
3
5
7
10
20 30
0
25
50
75
100
125
150
DV , INSTANTANEOUS INCREASE IN V ABOVE V (NOM) (VOLTS)
BR
T , AMBIENT TEMPERATURE (°C)
A
BR
BR
Figure 4. Dynamic Impedance
Figure 3. Pulse Derating Curve
UL RECOGNITION
The entire series has Underwriters Laboratory
Recognition for the classification of protectors (QVGV2)
under the UL standard for safety 497B and File #116110.
Many competitors only have one or two devices recognized
or have recognition in a non-protective category. Some
competitors have no recognition at all. With the UL497B
recognition, our parts successfully passed several tests
including Strike Voltage Breakdown test, Endurance
Conditioning, Temperature test, Dielectric Voltage-Withstand
test, Discharge test and several more.
Whereas, some competitors have only passed a
flammability test for the package material, we have been
recognized for much more to be included in their Protector
category.
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