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MMQA Datasheet(PDF) 3 Page - ON Semiconductor

Part No. MMQA
Description  SC−74 Quad Monolithic Common Anode Transient Voltage Suppressors for ESD Protection
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

MMQA Datasheet(HTML) 3 Page - ON Semiconductor

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MMQA Quad Common Anode Series
http://onsemi.com
3
TYPICAL CHARACTERISTICS
Figure 3. Steady State Power Derating Curve
Figure 4. Pulse Derating Curve
Figure 5. 10
× 1000 ms Pulse Waveform
0
25
50
75
100
125
150
175
300
250
200
150
100
50
0
TA, AMBIENT TEMPERATURE (°C)
FR-5 BOARD
ALUMINA SUBSTRATE
100
90
80
70
60
50
40
30
20
10
00
25
50
75
100
125
150
175
200
TA, AMBIENT TEMPERATURE (°C)
100
50
0
01
2
3
4
t, TIME (ms)
tr
tP
PULSE WIDTH (tP) IS DEFINED
AS THAT POINT WHERE THE
PEAK CURRENT DECAYS TO 50%
OF IRSM.
tr ≤ 10 ms
HALF VALUE−
IRSM
2
PEAK VALUE−IRSM
Figure 6. 8
× 20 ms Pulse Waveform
Figure 7. Maximum Non−Repetitive Surge
Power, Ppk versus PW
Figure 8. Typical Maximum Non−Repetitive
Surge Power, Ppk versus VBR
0.1
1.0
10
100
1000
1.0
10
100
Power is defined as VRSM x IZ(pk) where VRSM
is the clamping voltage at IZ(pk).
PW, PULSE WIDTH (ms)
UNIDIRECTIONAL
RECTANGULAR
WAVEFORM, TA = 25°C
100
90
80
70
60
50
40
30
20
10
0
020
40
60
80
t, TIME (ms)
200
180
160
140
120
100
80
60
40
20
0
5.6
6.8
12
20
33
NOMINAL VZ
tP
tr
PULSE WIDTH (tP) IS DEFINED
AS THAT POINT WHERE THE
PEAK CURRENT DECAY = 8 ms
PEAK VALUE IRSM @ 8 ms
HALF VALUE IRSM/2 @ 20 ms
27
8 × 20 WAVEFORM AS PER FIGURE 6
10 × 100 WAVEFORM AS PER FIGURE 5


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