1.5SMC6.8AT3 Series
100
NONREPETITIVE
PULSE WAVEFORM
SHOWN IN FIGURE 2
t
r
≤
10
ms
100
VALUE (%)
PEAK VALUE - I
PP
I
PP
2
PULSE WIDTH (t
P
) IS DEFINED
AS THAT POINT WHERE THE PEAK
CURRENT DECAYS TO 50%
OF I
PP
.
P
pk
, PEAK POWER (kW)
10
HALF VALUE -
50
t
P
1
0.1
ms
1
ms
10
ms
100
ms
t
P
, PULSE WIDTH
1 ms
10 ms
0
0
1
2
t, TIME (ms)
3
4
Figure 1. Pulse Rating Curve
160
PEAK PULSE DERATING IN % OF
PEAK POWER OR CURRENT @ TA = 25
°
C
140
120
100
80
60
40
20
0
0
25
50
75
100
125
150
1000
I
T
, TEST CURRENT (AMPS)
500
200
100
50
20
10
5
2
1
0.3
T
L
= 25°C
t
P
= 10
ms
Figure 2. Pulse Waveform
V
BR
(NOM) = 6.8 TO 13 V
20 V
43 V
24 V
75 V
120 V
180 V
0.5 0.7 1
2
3
5
7 10
20
30
T
A
, AMBIENT TEMPERATURE (°C)
DV
BR
, INSTANTANEOUS INCREASE IN V
BR
ABOVE V
BR
(NOM) (VOLTS)
Figure 3. Pulse Derating Curve
Figure 4. Dynamic Impedance
UL RECOGNITION
The entire series has
Underwriters Laboratory
Recognition
for the classification of protectors (QVGQ2)
under the UL standard for safety 497B and File #E210057.
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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4
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