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SACB12 Datasheet(PDF) 13 Page - Littelfuse

Part # SACB12
Description  TVS Diode Products
PDF  146 Pages
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Manufacturer  LITTELFUSE [Littelfuse]
Direct Link  http://www.littelfuse.com
Logo LITTELFUSE - Littelfuse

SACB12 Datasheet(HTML) 13 Page - Littelfuse

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9
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
Transient Voltage Suppression Diodes
Surface Mount – 400W > SMAJ series
SMAJ Series
Ratings and Characteristic Curves (T
A=25°C unless otherwise noted)
0
20
40
60
80
100
0
25
50
75
100
125
150
175
T
A-Ambie nt te mpe ra ture (ºC)
1
10
100
1000
10000
1.0
10.0
100.0
1000.0
Tj=25ºC
f =1.0MHz
Vsig=50mVp-p
Uni-directional V=0V
Bi-directional V=0V
Uni-directional @VR
Bi-directional @VR
V
BR - Reverse Breakdown Voltage (V)
0.1
1
10
0.000001
0.00001
0.0001
0.001
t
d-Pulse Width (sec.)
0.2x0.2" (5.0x5.0mm)
Copper Pad Area
Figure 1 - Peak Pulse Power Rating Curve
Figure 2 - Pulse Derating Curve
0
0
50
100
150
1.0
2.0
3.0
4.0
tr=10μsec
Peak Value
IPPM
IPPM
2
TJ=25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of IPPM
10/1000μsec. Waveform
as defined by R.E.A
td
t-Time (ms)
Half Value
IPPM
( )
Figure 3 - Pulse Waveform
Figure 4 - Typical Junction Capacitance
0
0.2
0.4
0.6
0.8
1
1.2
0
25
50
75
100
125
150
175
T
A - Ambient Temperature (ºC)
Figure 5 - Steady State Power Dissipation Derating
Curve
0
5
10
15
20
25
30
35
40
45
1
10
100
Number of Cycles at 60 Hz
Figure 6 - Maximum Non-Repetitive Forward Surge
Current Uni-Directional Only



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