Transient Voltage Suppression Diodes
Surface Mount – 600W > SMBJ series
Ratings and Characteristic Curves
(T =25°C unless otherwise noted)
A
Peak Pulse Power (P
PP
) or Current (I
PP
)
Derating in Percentage %
100
100
P
PPM
-Peak Pulse Power (kW)
80
10
60
40
1
0.2x0.2" (5.0x5.0mm)
Copper Pad Area
0.1
0.000001
0.00001
0.0001
0.001
t
d
-Pulse Width (sec.)
20
0
0
25
50
75
100
125
150
175
T
A
- Ambient Temperature (ºC)
Figure 3 - Pulse Waveform
150
I
PPM
- Peak Pulse Current, % I
RSM
tr=10μsec
Peak Value
IPPM
TJ=25°C
Pulse Width(td) is defined
as the point where the peak
current decays to
50%
of IPPM
Figure 4 - Typical Junction Capacitance
10000
Bi-directional V=0V
1000
Cj (pF)
Uni-directional @V
R
100
Uni-directional V=0V
Half Value
IPPM
IPPM
2
( )
10/1000μsec. Waveform
as defined by R.E.A
100
Bi-directional @V
R
50
10
Tj=25C
f=1.0MHz
Vsig=50mVp-p
0
td
0
1.0
2.0
t-Time (ms)
3.0
4.0
1
1.0
10.0
100.0
V
BR
- Reverse Breakdown Voltage (V)
1000.0
Figure 5 - Steady State Power Dissipation Derating Curve
6
P
M(AV)
, Steady State Power Dissipation
(W)
5
4
3
2
1
0
0
25
50
75
100
125
150
175
T
A
- Ambient Temperature (ºC)
Figure 6 - Maximum Non-Repetitive Peak Forward
Surge Current Uni-Directional Only
120
I
FSM
- Peak Forward Surge Current (A)
100
80
60
40
20
0
1
10
Number of Cycles at 60 Hz
100
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to http://www.Littelfuse.com/series/SMBJ.html for current information.
25
Revision: January 09, 2009
SMBJ Series
SMBJ Series
Figure 1 - Peak Pulse Power Rating
Figure 2 - Pulse Derating Curve
LITTELFUSE [ LITTELFUSE ]
