SMA6J
High junction temperature
Transil™
Datasheet - production data
Description
A
A
K
K
The SMA6J Transil series has been designed to
protect sensitive equipment against electro-static
discharges according to IEC 61000-4-2, MIL STD
883 Method 3015, and electrical overstress such
as IEC 61000-4-4 and 5. They are generally for
surges below 600 W 10/1000 μs.
This planar technology makes it compatible with
high-end equipment and SMPS where low
leakage current and high junction temperature
are required to provide reliability and stability
over time. Their low clamping voltages provides a
better safety margin to protect sensitive circuits
with extended life time expectancy.
Packaged in SMA, this minimizes PCB space
consumption (SMA footprint in accordance with
IPC 7531 standard).
Transil™ is a trademark of STMicroelectronics
Unidirectional Bidirectional
SMA
(JEDEC DO-214AA)
Features
Peak pulse power:
600 W (10/1000 μs)
4 kW (8/20 μs)
Stand-off voltage range: from 5 V to 188 V
Unidirectional and bidirectional types
Low leakage current:
0.2 μA at 25 °C
1 μA at 85 °C
Operating T
j
max: 175 °C
JEDEC registered package outline
Complies with the following standards
IEC 61000-4-2 level 4:
15 kV (air discharge)
8 kV (contact discharge)
MIL STD 883G, method 3015-7: class 3B:
25 kV HBM (human body model)
January 2018
DocID13274 Rev 6
1/11
www.st.com
This is information on a product in full production.
Characteristics
SMA6J
1
Characteristics
Table 1: Absolute maximum ratings (T
amb
= 25 °C)
Symbol
P
PP
P
T
stg
T
j
T
L
Parameter
Peak pulse power dissipation
Power dissipation on infinite heatsink
Storage temperature range
Operating junction temperature range
Maximum lead temperature for soldering during 10 s
Table 2: Thermal resistance
Symbol
R
th(j-l)
R
th(j-a)
Junction to leads
Junction to ambient on printed circuit on recommended pad layout
Figure 1: Electrical characteristics - parameter definitions
Parameter
Value
30
120
Unit
°C/W
°C/W
T
j
initial = T
amb
T
amb
= 55 °C
Value
600
4
-65 to +175
-55 to +175
260
Unit
W
W
°C
°C
°C
Figure 2: Pulse definition for electrical characteristics
2/11
DocID13274 Rev 6
SMA6J
I
RM
max at
V
RM
V
BR
at I
R
(1)
Characteristics
Table 3: Electrical characteristics parameter values (T
amb
= 25 °C, unless otherwise specified)
10 / 1000 µs
V
CL
Order code
25
°C
µA
85
°C
V
50
50
50
50
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
5.0
6.0
6.5
8.5
10
12
13
15
18
20
24
26
28
33
40
48
58
70
85
100
130
154
170
188
6.40
6.70
7.20
9.4
11.1
13.3
14.4
16.7
20.0
22.2
26.7
28.9
31.1
36.7
44.4
53.3
64.4
77.8
94
111
144
171
189
209
Min.
Typ.
V
6.74
7.05
7.58
9.9
11.7
14.0
15.2
17.6
21.1
23.4
28.1
30.4
32.7
38.6
46.7
56.1
67.8
81.9
99
117
152
180
199
220
7.07
7.41
7.96
10.4
12.3
14.7
15.9
18.5
22.1
24.5
29.5
31.9
34.4
40.6
49.1
58.9
71.2
86.0
104
123
159
189
209
231
Max.
mA
10
10
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Max.
V
(3)
9.1
9.5
10.2
13.3
15.7
18.8
20.4
23.6
28.3
31.4
37.8
40.9
44.0
51.9
62.8
75.4
91.1
110
134
157
204
242
275
328
A
(4)
68
61
56
41.7
37
31
29
25.1
21.5
19.4
16
14.9
13.8
11.8
9.7
8.1
6.7
5.5
4.6
3.8
3
2.4
2.2
2
I
PP
R
D
Max.
Ω
0.029
0.034
0.040
0.070
0.093
0.133
0.154
0.206
0.288
0.354
0.516
0.600
0.697
0.963
1.42
2.04
2.97
4.38
6.45
9.03
14.9
22.1
30.0
48.5
V
CL
Max.
V
14.4
14.8
15.2
19.5
21.7
25.3
27.2
32.5
39.3
42.8
50
53.5
59
69
84
100
121
146
178
212
265
317
353
388
A
275
270
266
205
184
157
147
123
102
93
80
75
68
57
48
40
33
27
22.5
19
15
12.6
11.3
10.3
Ω
0.027
0.027
0.027
0.044
0.051
0.068
0.076
0.114
0.168
0.196
0.256
0.288
0.363
0.512
0.728
1.03
1.51
2.22
3.29
4.69
7.03
10.2
12.7
15.2
8 / 20µs
I
PP
R
D
Max.
10
-
4
/°C
5.7
5.9
6.1
7.3
7.8
8.3
8.4
8.8
9.2
9.4
9.6
9.7
9.8
10.0
10.1
10.3
10.4
10.5
10.6
10.7
10.8
10.8
10.8
10.8
αT
(2)
SMA6J5.A/CA
SMA6J6.0A/CA
SMA6J6.5A/CA
SMA6J8.5A/CA
SMA6J10A/CA
SMA6J12A/CA
SMA6J13A/CA
SMA6J15A/CA
SMA6J18A/CA
SMA6J20A/CA
SMA6J24A/CA
SMA6J26A/CA
SMA6J28A/CA
SMA6J33A/CA
SMA6J40A/CA
SMA6J48A/CA
SMA6J58A/CA
SMA6J70A/CA
SMA6J85A/CA
SMA6J100A/CA
SMA6J130A/CA
SMA6J154A/CA
SMA6J170A/CA
SMA6J188A/CA
Notes:
(1)
(2)
20
20
20
20
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
Pulse test: t
p
< 50 ms
To calculate V
BR
or V
CL
versus junction temperature, use the following formulas:
(3)
V
BR
at T
J
= V
BR
at 25 °C x (1 + αT x (T
J
- 25))
V
CL
at T
J
= V
CL
at 25 °C x (1 + αT x (T
J
-25))
To calculate maximum clamping voltage at other surge level, use the following formula:
V
CLmax
= V
BR max
+ R
D
x I
PPappli
where I
PPappli
is the surge current in the application
capability given for both directions for unidirectional and bidirectional types.
(4)
Surge
DocID13274 Rev 6
3/11
Characteristics
SMA6J
1.1
Characteristics (curves)
Figure 3: Peak power dissipation versus initial
junction temperature
%
110
100
90
80
70
60
1.0
50
40
30
20
10
10.0
T
j
initial=25°C
Figure 4: Peak pulse power versus exponential
pulse duration (T
amb
= 25 °C)
P
PP
(kW)
T
j
(°C)
0.1
0
25
50
75
100
125
150
175
200
0.01
0.10
t
p
(ms)
1.00
10.00
0
Figure 5: Clamping voltage versus peak pulse current (exponential waveform, maximum values)
1000
I
PP
(A)
T
j
initial=25 °C
100
8/20 µs
10
10/1000 µs
SMA6J188A
SMA6J5.0A
SMA6J12A
SMA6J24A
SMA6J40A
SMA6J85A
1
V
CL
(V)
0.1
1
10
100
1000
4/11
DocID13274 Rev 6
SMA6J
Figure 6: Junction capacitance versus reverse
applied voltage (typical values) (SMA6JxxA)
C(pF)
10000
F=1MHz
V
OSC
=30mV
RMS
T
j
=25°C
Characteristics
Figure 7: Junction capacitance versus reverse
applied voltage (typical values) (SMA6JxxCA)
C(pF)
10000
F=1MHz
V
OSC
=30mV
RMS
T
j
=25°C
SMA6J5.0A
1000
SMA6J5.0CA
1000
SMA6J13CA
SMA6J13A
100
SMA6J26A
SMA6J26CA
100
SMA6J58A
SMA6J58CA
10
SMA6J188CA
10
1
10
V
R
(V)
100
SMA6J188A
1
1000
1
10
V
R
(V)
100
1000
Figure 8: Peak forward voltage drop versus peak
forward current (typical values)
Figure 9: Relative variation of thermal impedance
junction to ambient versus pulse duration (printed
circuit board FR4, SCu = 1 cm2)
Z
th(j-a)
/R
th(j-a)
1.00
0.10
t
p
(S)
0.01
1.E-02
1.E-01
1.E+00
1.E+01
1.E+02
1.E+03
Figure 10: Thermal resistance junction to ambient
versus copper surface under each lead (printed
circuit board FR4, eCu = 35 μm)
R
th(j-a)
(°C/W)
130
120
110
100
90
80
70
60
50
40
Figure 11: Leakage current versus junction
temperature (typical values)
I
R
(nA)
1.E+04
V
R
= V
RM
V
BR
≤ 11.7V
1.E+03
1.E+02
V
BR
>11.7V
1.E+01
S
CU
(cm
2
)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
T
j
(°C)
1.E+00
25
50
75
100
125
150
175
DocID13274 Rev 6
5/11
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