SMAJ Series 400W Transient Voltage Suppressor
DESCRIPTION:
TVS diodes can be used in a wide range of applications
iodes
which like consumer electronic products, automotive
industries, munitions, telecommunications, aerospace
industries, and intelligent control systems.
SMA
FEATURES:
Glass passivated or planar junction
ar
Excellent clamping capability
Repetition rate (duty cycle): 0.01%
Typical I
R
less than 1μA above 10V.
A
Low profile package and low inductance
ow
400W Peak Pulse power capability at 10×1000 waveform.
10×1000μs
Fast response time: typically less than 1.0ps from 0V to V
BR
min.
High temperature soldering: 260
emperature
260℃/10s at terminals.
Plastic package has Underwriters Laboratory Flammability 94V
94V-0.
For surface mounted applications in order to optimize board space
AEC-Q101 qualified.
Symbol
ABSOLUTE MAXIMUM RATINGS
(T
A
=25ºC, RH=45%-75%,
unless otherwise noted)
Parameter
Storage temperature range
Operating junction temperature range
Steady state power dissipation at T
L
=75℃
Peak pulse power dissipation on 10/1000
10/1000μs
waveform
Maximum Instantaneous Forward Voltage at
30A for Unidirectional
Symbol
T
stg
T
j
P
M(AV)
P
PP
V
F
Value
-55 to +1
+125
-55 to +1
+125
3.3
400
5.0
Unit
℃
℃
W
W
V
Rev
:
01.06.2014
1/6
www.leiditech.com
SMAJ Series 400W Transient Voltage Suppressor
ELECTRICAL CHARACTERISTICS
(T
A
=25℃, continued)
Part Number
Uni-Polar
SMAJ54A
SMAJ58A
SMAJ60A
SMAJ64A
SMAJ70A
SMAJ75A
SMAJ78A
SMAJ85A
SMAJ90A
SMAJ100A
SMAJ110A
SMAJ120A
SMAJ130A
SMAJ150A
SMAJ160A
SMAJ170A
SMAJ180A
SMAJ200A
SMAJ220A
SMAJ250A
SMAJ300A
SMAJ350A
SMAJ400A
SMAJ440A
V
R
V
54.0
58.0
60.0
64.0
70.0
75.0
78.0
85.0
90.0
100.0
110.0
120.0
130.0
150.0
160.0
170.0
180.0
200.0
220.0
250.0
300.0
350.0
400.0
440.0
I
R
@
V
R
μA
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
V
BR
@I
T
min(V)
60.00
64.40
66.70
71.10
77.80
83.30
86.70
94.40
100.0
111.0
122.0
133.0
144.0
167.0
178.0
189.0
201.0
224.0
246.0
279.0
335.0
391.0
447.0
492.0
I
T
mA
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
V
C
@I
PP
max(V)
87.1
93.6
96.8
103.0
113.0
121.0
126.0
137.0
146.0
162.0
177.0
193.0
209.0
243.0
259.0
275.0
292.0
324.0
356.0
405.0
486.0
567.0
648.0
713.0
I
PP
①
A
4.6
4.3
4.1
3.9
3.6
3.3
3.2
2.9
2.8
2.5
2.3
2.1
1.9
1.7
1.6
1.5
1.4
1.3
1.1
1.0
0.8
0.7
0.6
0.6
Bi-Polar
SMAJ54CA
SMAJ58CA
SMAJ60CA
SMAJ64CA
SMAJ70CA
SMAJ75CA
SMAJ78CA
SMAJ85CA
SMAJ90CA
SMAJ100CA
SMAJ110CA
SMAJ120CA
SMAJ130CA
SMAJ150CA
SMAJ160CA
SMAJ170CA
SMAJ180CA
SMAJ200CA
SMAJ220CA
SMAJ250CA
SMAJ300CA
SMAJ350CA
SMAJ400CA
SMAJ440CA
max(V)
66.30
71.20
73.70
78.60
86.00
92.10
95.80
104.0
111.0
123.0
135.0
147.0
159.0
185.0
197.0
209.0
222.0
247.0
272.0
309.0
371.0
432.0
494.0
543.0
①
Surge waveform: 10/1000μs
V
R
：Stand-off
Voltage -- Maximum voltage that can be applied
V
BR
：
Breakdown Voltage
V
C
：Clamping
Voltage -- Peak voltage measured across the suppressor at a specified Ipp
I
R
：
Reverse Leakage Current
Rev
:
01.06.2014
3/6
www.leiditech.com
SMAJ Series 400W Transient Voltage Suppressor
ORDERING INFORMATION
RATINGS AND V-I CHARACTERISTICS CURVES
(T
A
=25ºC,
unless otherwise noted)
FIG.1:V- I curve characteristics
(Uni-directional)
FIG.2:V- I curve characteristics
(Bi-directional)
I
PP
V
C
V
BR
V
R
V
F
V
V
C
V
BR
V
R
I
T
I
R
V
I
R
I
T
V
R
V
BR
V
C
I
PP
I
PP
FIG.3: Pulse waveform
I
PPM
(%I
RSM
)
150
tr = rise time to peak value
td = decay time to half value
tr=10μs
FIG.4: Pulse derating curve
P
PP
derating in percentage(%)
100
80
60
100
Peak value
Half value
40
50
20
td
0
0
1.0
t(ms)
2.0
3.0
4.0
0
0
25
50
T
A
(
℃
)
75
100
125
150
175
Rev
:
01.06.2014
4/6
www.leiditech.com
SMAJ Series 400W Transient Voltage Suppressor
SOLDERING PARAMETERS
Reflow Condition
-Temperature Min (T
s(min)
)
Pre
Heat
-Temperature Max(T
s(max)
)
-Time (Min to Max) (ts)
Average ramp up rate (Liquid us Temp
(T
L
) to peak)
T
s(max)
to T
L
- Ramp-up Rate
Reflow
-Temperature(T
L
)(Liquid us)
-Temperature(t
L
)
Peak Temp (T
p
)
Time within 5℃ of actual Peak Temp (t
p
)
Ramp-down Rate
Time 25℃ to Peak Temp (T
P
)
Do not exceed
Pb-Free assembly
(see FIG.5)
+150℃
+200℃
60-180 secs.
3℃/sec. Max
3℃/sec. Max
+217℃
60-150 secs.
+260(+0/-5)℃
30 secs. Max
6℃/sec. Max
8 min. Max
+260℃
Temperature
FIG.5:
Reflow condition
tp
T
P
Ramp-up
T
L
T
S(max)
Ramp-down
Preheat
T
S(min)
t
s
Critical Zone
T
L
to T
P
t
L
25
time to peak temperatue
(t 25
℃
to peak)
Time
PACKAGE MECHANICAL DATA
A
Ref.
Dimensions
Millimeters
Min.
A
4.25
2.50
1.35
0.76
4.93
0.051
0.15
1.98
6.50
2.30
1.70
0.067
Max.
4.65
2.90
1.65
1.52
5.28
0.203
0.31
2.41
Inches
Min.
0.167
0.098
0.053
0.030
0.194
0.002
0.006
0.078
0.256
0.090
Max.
0.183
0.114
0.065
0.060
0.208
0.008
0.012
0.095
B
G
H
F
B
C
D
D
E
J
K
E
F
G
H
J
K
L
DO-214AC (SMA)
Rev
:
01.06.2014
L
5/6
www.leiditech.com
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