SMAJ Series
Surface Mount-400W Transient Voltage Suppression Diodes
Description
The SMAJ Series are designed specifically to protect sensitive electronic
equipment from voltage transients induced by lightning and other transient
voltage events.
Notes;
Unidirectional:SMAJxxA
Bidirectional:SMAJxxCA
Unidirectional
Bidirectional
Feature
Applications
TVS device are ideal for the protection of I/O interfaces,
V
CC
bus and other vulnerable circuits used in telecom,
computer industrial and consumer electronic application
Halogen-Free
RoHS compliant
For surface mounted application to optimize board space
Low profile package
Built-in strain relief
Glass passivited junction
Plastic material has UL flammability classification 94 V-0
Low inductance
Excellent clamping capability
Fast response time: typical less than 1.0 ps from 0V to V
BR
min
400W peak pulse power capability at 10*1000us waveform, repetition
rate (duty cycle): 0.01%
Absolute maximum rating@25℃
Rating
Peak Pulse Power (t
p
=10/700μs)
Peak Forward Surge Current,8.3ms Single Half
Sine Wave Superimposed on Rated Load
(JEDEC Method)
Instantaneous Forward Voltage @I
PP
=35A
V
BR
<100V
V
BR
≥100V
Operating and Storage Temperature
T
J
,T
STG
V
F
3.5
5.0
-55 to +150
℃
V
I
FSM
40
A
Symbol
P
pp
Value
400
Units
W
Rev.06.3
1
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Surface Mount-400W Transient Voltage Suppression Diodes
Reverse
Part
Number
(Uni)
Part
Number
(Bi)
Stand off
Voltage
V
R
(V)
SMAJ48A
SMAJ51A
SMAJ54A
SMAJ58A
SMAJ60A
SMAJ64A
SMAJ70A
SMAJ75A
SMAJ78A
SMAJ85A
SMAJ90A
SMAJ100A
SMAJ110A
SMAJ120A
SMAJ130A
SMAJ150A
SMAJ160A
SMAJ170A
SMAJ180A
SMAJ200A
SMAJ220A
SMAJ250A
SMAJ300A
SMAJ350A
SMAJ400A
SMAJ440A
SMAJ48CA
SMAJ51CA
SMAJ54CA
SMAJ58CA
SMAJ60CA
SMAJ64CA
SMAJ70CA
SMAJ75CA
SMAJ78CA
SMAJ85CA
SMAJ90CA
SMAJ100CA
SMAJ110CA
SMAJ120CA
SMAJ130CA
SMAJ150CA
SMAJ160CA
SMAJ170CA
SMAJ180CA
SMAJ200CA
SMAJ220A
SMAJ250CA
SMAJ300CA
SMAJ350CA
SMAJ400CA
SMAJ440CA
48.0
51.0
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
MIN
53.30
56.70
60.00
64.40
66.70
71.10
77.80
83.30
86.70
94.40
100.00
111.00
122.00
133.00
144.00
167.00
178.00
189.00
201.00
224.00
246.00
279.00
335.00
391.00
447.00
492.00
MAX
58.90
62.70
66.30
71.20
73.70
78.60
86.00
92.10
95.80
104.00
111.00
123.00
135.00
147.00
159.00
185.00
197.00
209.00
222.00
247.00
272.00
309.00
371.00
432.00
494.00
543.00
Breakdown Voltage
V
BR
@ I
T
(V)
Test
Current
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
1
1
Maximum
Clamping
Voltage
V
C
@I
PP
77.4
82.4
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
SMAJ Series
Maximum
Peak
Pulse
Current
I
PP
5.2
4.9
4.6
4.3
4.1
3.9
3.5
3.3
3.2
2.9
2.7
2.5
2.3
2.1
1.9
1.6
1.5
1.5
1.4
1.2
1.1
1.0
0.8
0.7
0.6
0.6
Maximum
Reverse
Leakage
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
1
1
For bidirectional type having V
RWM
of 10 volts and less, the I
R
limit is double.
Rev.06.3
3
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Surface Mount-400W Transient Voltage Suppression Diodes
Solder Reflow Recommendation
Peak Temp=257℃, Ramp Rate=0.802deg.
℃/sec
280
SMAJ Series
240
200
160
120
80
40
0
0
30
60
90
120
150
180
210
240
270
300
330
360
390
420
450
480
Time (sec)
Marking information
Unidirectional
Notes: X represents 0~9, A~Z any character
Bidirection
Rev.06.3
4
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