Circuit Protection
Product Specification
2
8
Transient Voltage Suppressors
SMAJ
Transient Voltage Suppressors (TVS) Data Sheet
Features
■
■
■
■
■
■
■
■
■
■
■
■
For surface mounted applications in order to optimize board space
Low profile package
Glass passivated junction
Low inductance
Excellent clamping capability
400W peak pulse power capability at 10/1000μs waveform,
repetition rate (duty cycle): 0.01%
Fast response time
Typical I
R
less than 1μA above 10V
High Temperature soldering: 260℃/10 seconds at terminals
Plastic package has underwriters laboratory flammability 94V-0
Meets MSL level 1, per J-STD-020
Safety certification: UL: E244458
Mechanical Data
■
■
■
■
■
Case: JEDEC DO-214AC. Molded plastic over glass passivated junction
Terminal: Solder plated, solderable per MIL-STD-750, Method 2026
Polarity: Color band denotes cathode except bi-directional models
Standard Packaging: 12mm tape (EIA STD RS-481)
Weight: 0.07g
Applications
■
I/O interface
■
AC/DC power supply
■
Low frequency signal transmission line (RS232, RS485, etc.)
Maximum Ratings and Characteristics
Ratings at 25℃ ambient temperature unless otherwise specified.
Rating
Peak pulse power dissipation at 10/1000μs waveform
(Note1, Note2, Fig.1)
Peak pulse current of at 10/1000μs waveform (Note 1, Fig.3)
Steady state power dissipation at T
A
=50℃ (Fig.5)
Peak forward surge current, 8.3ms single half sine-wave
superimposed on rated load, (JEDEC Method) (Note3, Fig.6)
Operating junction and Storage Temperature Range.
Typical thermal resistance junction to lead
Typical thermal resistance junction to ambient
Symbol
P
PPM
I
PPM
P
M(AV)
I
FSM
T
J
,T
STG
R
θJL
R
θJA
Value
Minimum 400
See Table
3.3
40
-65 to +150
30
120
Units
Watts
Amps
Watts
Amps
℃
℃/W
℃/W
Notes: 1. Non-repetitive current pulse, per Fig.3 and derated above T
A
=25℃ per Fig.2.
2. Mounted on 5.0mm×5.0mm (0.03mm thick) copper pads to each terminal.
3. 8.3ms single half sine-wave, or equivalent square wave, duty cycle=4 pulses per minutes maximum.
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Circuit Protection
Product Specification
3
8
Transient Voltage Suppressors
Dimensions (SMA/DO-214AC)
SMAJ
Millimeters
Inches
Min.
0.157
0.100
0.049
0.194
0.030
-
0.079
0.078
Max.
0.177
0.110
0.065
0.208
0.060
0.008
0.098
0.090
Cathode Band
Symbol
Min.
L
3.99
2.54
1.25
4.93
0.76
-
2.00
1.98
Max.
4.50
2.79
1.65
5.28
1.52
0.203
2.50
2.29
D1 D
D
D1
L
T
T1
H1 H
d
T
T1
d
H
H1
Part Number Code
SMAJ XXX C A
5% V
BR
Voltage Tolerance
Bidirectional
V
RWM
Voltage
Series Code
Ordering Code for different package
7 inch reel package: Add suffix “/TR7” at the end of the part number, such as SMAJ10A/TR7
13 inch reel package: Add suffix “/TR13” at the end of the part number, such as SMAJ100CA/TR13
Electrical Characteristics (T
A
=25℃)
Device
Marking
Code
UNI
AE
AG
AK
AM
AP
AR
AT
AV
BI
WE
WG
WK
WM
WP
WR
WT
WV
Reverse
Stand-Off
Voltage
V
RWM
(V)
5.0
6.0
6.5
7.0
7.5
8.0
8.5
9.0
Breakdown
Voltage
@I
T
V
BR
(V)
6.40~7.00
6.67~7.37
7.22~7.98
7.78~8.60
8.33~9.21
8.89~9.83
9.44~10.40
10.00~11.10
Test
Current
I
T
(mA)
10
10
10
10
1
1
1
1
Maximum
Clamping
Voltage
@I
PP
V
C
(V)
9.2
10.3
11.2
12.0
12.9
13.6
14.4
15.4
Peak
Pulse
Current
I
PP
(A)
43.5
38.8
35.7
33.3
31.0
29.4
27.8
26.0
Reverse
Leakage
@V
RWM
I
R
(μA)
800
800
500
200
100
50
20
10
Part Number
Unidirectional
SMAJ5.0A
SMAJ6.0A
SMAJ6.5A
SMAJ7.0A
SMAJ7.5A
SMAJ8.0A
SMAJ8.5A
SMAJ9.0A
Bidirectional
SMAJ5.0CA
SMAJ6.0CA
SMAJ6.5CA
SMAJ7.0CA
SMAJ7.5CA
SMAJ8.0CA
SMAJ8.5CA
SMAJ9.0CA
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Apr. 29, 2019 V.0
Circuit Protection
Product Specification
5
8
Transient Voltage Suppressors
Electrical Characteristics (T
A
=25℃)
Part Number
Device
Marking
Code
UNI
ST
SU
SV
SW
GE
SZ
TE
TG
TK
TM
BI
VT
YU
VV
YW
VX
VZ
UE
UG
UK
UM
SMAJ
Reverse
Stand-Off
Voltage
V
RWM
(V)
180.0
190.0
200.0
210.0
220.0
250.0
300.0
350.0
400.0
440.0
Breakdown
Voltage
@IT
V
BR
(V)
201.00~222.00
211.00~233.00
224.00~247.00
237.00~263.00
246.00~272.00
279.00~309.00
335.00~371.00
391.00~432.00
447.00~494.00
492.00~543.00
Test
Current
I
T
(mA)
1
1
1
1
1
1
1
1
1
1
Maximum
Clamping
Voltage
@IPP
V
C
(V)
292.0
308.0
324.0
340.0
356.0
405.0
486.0
567.0
648.0
713.0
Peak
Pulse
Current
I
PP
(A)
1.4
1.3
1.2
1.2
1.1
1.0
0.8
0.7
0.6
0.6
Reverse
Leakage
@VRWM
I
R
(μA)
1
1
1
1
1
1
1
1
1
1
Unidirectional
SMAJ180A
SMAJ190A
SMAJ200A
SMAJ210A
SMAJ220A
SMAJ250A
SMAJ300A
SMAJ350A
SMAJ400A
SMAJ440A
Bidirectional
SMAJ180CA
SMAJ190CA
SMAJ200CA
SMAJ210CA
SMAJ220CA
SMAJ250CA
SMAJ300CA
SMAJ350CA
SMAJ400CA
SMAJ440CA
Notes: For bidirectional type having V
RWM
of 10V and less, the I
R
limit is double.
Ratings and Characteristic Curves (T
A
=25℃ unless otherwise noted)
Figure 1. Peak Pulse Power Rating Curve
10
Figure 2. Pulse Derating Curve
Peak Pulse Power (P
PP
) or Current (I
PP
)
Derating in Percentage %
100
P
PPM
- Peak Pulse Power (kW)
80
60
1
40
20
0.2×0.2″(5.0×5.0mm)
Copper Pad Area
0.1
0
0
25
50
75
100
125
150
175
T
A
-Ambient Temperature (℃)
1
10
100
1000
t
d
-Pulse Width (µs)
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