SMA4FxxA
Datasheet
400 W TVS
Features
•
•
•
•
•
Peak pulse power: 400 W (10/1000 μs) and 2.5 kW (8/20 μs)
Stand-off voltage range from 5 V to 188 V
Unidirectional type
Low leakage current: 0.2 μA at 25 °C and 1 μA at 85 °C
Operating Tj max: 175 °C
•
High power capability at Tj max.: up to 200 W (10/1000 µs)
•
Lead finishing: matte tin plating
Complies with the following standards
•
•
•
•
•
•
UL94, V0
J-STD-020 MSL level 1
J-STD-002, JESD 22-B102 E3 and MIL-STD-750, method 2026
JESD-201 class 2 whisker test
IPC7531 footprint and JEDEC registered package outline
IEC 61000-4-2, C = 150 pF - R = 330 Ω exceeds level 4:
–
25 kV (contact discharge)
–
30 kV (air discharge)
Description
Product status link
SMA4F
SMA4F5.0A, SMA4F6.0A,
SMA4F6.5A, SMA4F8.5A,
SMA4F10A, SMA4F11A,
SMA4F12A, SMA4F13A,
SMA4F14A, SMA4F15A,
SMA4F16A, SMA4F18A,
SMA4F20A, SMA4F22A,
SMA4F23A, SMA4F24A,
SMA4F26A, SMA4F28A,
SMA4F30A, SMA4F31A,
SMA4F33A, SMA4F36A,
SMA4F40A, SMA4F48A,
SMA4F58A, SMA4F70A,
SMA4F85A, SMA4F100A,
SMA4F130A, SMA4F154A,
SMA4F170A, SMA4F188A
The SMA4F Transil series are designed to protect sensitive circuits against transient
surges.
The planar technology makes it compatible with high-end circuits where low leakage
current and high junction temperature are required to provide long term reliability and
stability.
DS12542 - Rev 1 - May 2018
For further information contact your local STMicroelectronics sales office.
www.st.com
SMA4FxxA
Characteristics
1
Characteristics
Table 1. Absolute maximum ratings (Tamb = 25 °C)
Symbol
Parameter
Value
Unit
Contact discharge
25
kV
Air discharge
30
10/1000 µs, Tj initial = Tamb
400
W
IEC 61000-4-2 (C = 150 pF, R = 330 Ω)
VPP
Peak pulse voltage
PPP
Peak pulse power dissipation
Tstg
Storage temperature range
-65 to +175
°C
Tj
Operating junction temperature range
-55 to +175
°C
TL
Maximum lead temperature for soldering during 10 s
260
°C
Figure 1. Electrical characteristics - parameter definitions
Unidirectional device
VRM
IRM
VBR
VCL
IPP
VF
αT
RD
Stand-off voltage
Leakage current @ VRM
Breakdown voltage
Clamping voltage
Peak pulse current
Forward voltage drop
Voltage temperature coefficient
Dynamic resistance
IPP
IR
IRM
V
VRM VBR VCL
VF
I
IF
V
I
Figure 2. Pulse definition for electrical characteristics
DS12542 - Rev 1
page 2/13
SMA4FxxA
Characteristics
Table 2. Electrical characteristics - parameter values (Tamb = 25 °C, unless otherwise specified)
IRM max at VRM
Type
25 °C
85 °C
µA
10 / 1000 µs
VBR at IR
Min.
V
Typ.
VCL(3)
Max.
V
IPP
Max.
αT(1)(2)
8 / 20 µs
RD
VCL(3)
Max.
Max.
IPP
RD
Max.
Max.
mA
V
A
Ω
V
A
Ω
10-4/°C
SMA4F5.0A
20
50
5.0
6.4
6.74
7.1
10
9.2
43.5
0.048
13.4
174
0.036
5.7
SMA4F6.0A
20
50
6.0
6.7
7.05
7.4
10
10.3
38.8
0.075
13.7
170
0.037
5.9
SMA4F6.5A
20
50
6.5
7.2
7.58
8
10
11.2
35.7
0.09
14.5
160
0.041
6.1
SMA4F8.5A
20
50
8.5
9.4
9.9
10.4
1
14.4
27.7
0.144
19.5
124
0.073
7.3
SMA4F10A
0.2
1
10
11.1
11.7
12.3
1
17
23.5
0.2
21.7
106
0.089
7.8
SMA4F11A
0.2
1
11
12.3
13
13.7
1
18
21.8
0.216
24.2
96
0.11
8.1
SMA4F12A
0.2
1
12
13.3
14
14.7
1
19.9
20.1
0.259
25.3
91
0.116
8.3
SMA4F13A
0.2
1
13
14.4
15.2
16
1
21.5
18.6
0.296
27.2
85
0.132
8.4
SMA4F14A
0.2
1
14
15.7
16.5
17.3
1
23.1
17.2
0.337
29
79
0.148
8.6
SMA4F15A
0.2
1
15
16.7
17.6
18.5
1
24.4
16.4
0.36
32.5
71
0.197
8.8
SMA4F16A
0.2
1
16
17.9
18.8
19.8
1
26
15.4
0.403
34.7
67
0.222
9.0
SMA4F18A
0.2
1
18
20
21.1
22.2
1
29.2
13.7
0.511
39.3
59
0.29
9.2
SMA4F20A
0.2
1
20
22.2
23.4
24.6
1
32.4
12.3
0.634
42.8
54
0.337
9.4
SMA4F22A
0.2
1
22
24.4
25.7
27
1
35.5
11.2
0.759
48.3
48
0.444
9.6
SMA4F23A
0.2
1
23
25.7
27
28.4
1
37.8
10.6
0.888
49.2
47
0.444
9.6
SMA4F24A
0.2
1
24
26.7
28.1
29.5
1
38.9
10.3
0.913
50
46
0.446
9.6
SMA4F26A
0.2
1
26
28.9
30.4
31.9
1
42.1
9.5
1.07
53.5
43
0.502
9.7
SMA4F28A
0.2
1
28
31.1
32.7
34.3
1
45.4
8.8
1.26
59
39
0.633
9.8
SMA4F30A
0.2
1
30
33.2
35
36.8
1
48.4
8.3
1.39
64.3
36
0.761
9.9
SMA4F31A
0.2
1
31
34.2
36
37.8
1
50.2
8
1.56
65
35
0.77
9.9
SMA4F33A
0.2
1
33
36.7
38.6
40.5
1
53.3
7.5
1.71
69.7
33
0.885
10
SMA4F36A
0.2
1
36
40
42.1
44.2
1
58.1
6.9
2.01
76
30
1.06
10
SMA4F40A
0.2
1
40
44.4
46.7
49
1
64.5
6.2
2.5
84
27
1.3
10.1
SMA4F48A
0.2
1
48
53.2
56
58.8
1
77.4
5.2
3.56
100
23
1.79
10.3
SMA4F58A
0.2
1
58
64.6
68
71.4
1
93.6
4.3
5.21
121
19
2.62
10.4
SMA4F70A
0.2
1
70
77.9
82
86.1
1
113
3.5
7.71
146
16
3.75
10.5
SMA4F85A
0.2
1
85
95
100
105
1
137
2.9
11.4
178
13
5.69
10.6
SMA4F100A
0.2
1
100
111
117
123
1
162
2.5
15.6
212
11
8.09
10.7
SMA4F130A
0.2
1
130
144
152
160
1
209
1.9
25.8
265
9
11.7
10.8
SMA4F154A
0.2
1
154
171
180
189
1
246
1.6
35.6
317
7
18.3
10.8
SMA4F170A
0.2
1
170
190
200
210
1
275
1.4
47
353
6.5
22.2
10.8
SMA4F188A
0.2
1
188
209
220
231
1
328
1.4
69.3
388
6
26.2
10.8
1. To calculate VBR versus Tj: VBR at TJ = VBR at 25 °C x (1 + αT x (Tj - 25))
2. To calculate VCL versus Tj: VCL at TJ = VCL at 25 °C x (1 + αT x (Tj - 25))
3. To calculate VCLmax versus IPPappli: VCLmax = VBR max + RD x IPPappli
DS12542 - Rev 1
page 3/13
SMA4FxxA
Characteristics (curves)
1.1
Characteristics (curves)
Figure 3. Maximum peak power dissipation versus initial
junction temperature
Ppp (W)
500
Figure 4. Maximum peak pulse power versus exponential
pulse duration
Ppp (W)
10000
Tj initial = 25 °C
10/1000 µs
400
1000
VRM < 100V
300
VRM ≥ 100V
200
100
100
Tj (°C)
0
0
25
50
75
100
125
150
175
200
Figure 5. Maximum clamping voltage versus peak pulse
current
1000
Ipp (A)
tp (ms)
10
0.01
0.1
1
10
Figure 6. Dynamic resistance versus pulse duration
1000
RD (Ω)
8/20 µs
10/1000 µs
100
100
SMA4F188A
10
10
1
SMA4F33A
SMA4F188A
SMA4F70A
0.1
SMA4F33A
SMA4F5.0A
1
0.1
SMA4F5.0A
VCL (V)
1
DS12542 - Rev 1
10
100
SMA4F70A
1000
0.01
0.01
tp (ms)
0.1
1
10
page 4/13
SMA4FxxA
Characteristics (curves)
Figure 7. Junction capacitance versus reverse applied
voltage
Figure 8. Leakage current versus junction temperature
I (nA)
10000 R
C (nF)
10
VR = VRM
f = 1 MHz
Vosc = 30mVRMS
Tj = 25 °C
VRM < 10V
1000
SMA4F5.0A
1
100
0.1
SMA4F33A
VRM ≥ 10V
10
SMA4F70A
SMA4F188A
0.01
VR (V)
1
10
100
1
1000
Figure 9. Peak forward voltage drop versus peak forward
current
100
Tj (°C)
25
50
100
125
150
175
Figure 10. Thermal impedance junction to ambient versus
pulse duration
IF (A)
1000
Zth(j-a) (°C/W)
single pulse
10
75
Single pulse on recommended footprint.
Epoxy printed circuit board FR4, 35 µm Cu thickness
100
Tj = 175 °C
Tj = 25 °C
1
10
V F (V)
0
0
0.5
1
1.5
2
2.5
3
tp (s)
1
0.01
3.5
0.1
1
10
100
1000
Figure 11. Thermal resistance junction to ambient versus copper area under each lead
200
Rth(j-a) (°C/W)
Single pulse on recommended footprint.
Epoxy printed circuit board FR4, 35 µm Cu thickness
150
100
50
0
DS12542 - Rev 1
SCu (cm²)
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
page 5/13
SMA4FxxA
Package information
2
Package information
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK®
packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions
and product status are available at: www.st.com. ECOPACK® is an ST trademark.
2.1
SMA Flat package information
Figure 12. SMA Flat package outline
Table 3. SMA Flat mechanical data
Symbol
A
Inches(1)
Millimeters
Min
Typ
0.90
A1
Max
Min
1.10
0.035
0.05
Typ
Max
0.044
0.002
b
1.25
1.65
0.049
0.065
c
0.15
0.40
0.005
0.016
D
2.25
2.90
0.088
0.115
E
5.00
5.35
0.196
0.211
E1
3.95
4.60
0.155
0.182
G
2.00
0.079
G1
0.85
0.033
L
0.75
1.20
0.029
0.048
L1
0.45
0.018
L2
0.45
0.018
L3
0.05
0.002
V
8°
8°
V1
8°
8°
1. Values in inches are converted from mm and rounded to 3 decimal digits.
DS12542 - Rev 1
page 6/13
SMA4FxxA
SMA Flat package information
Figure 13. SMA Flat recommended footprint in mm
(inches)
Figure 14. SMA Flat marking
Figure 16. Tape and reel orientation
Figure 15. Package orientation in reel
Figure 17. 13'' reel dimension values
DS12542 - Rev 1
Figure 18. Inner box dimension values
page 7/13
SMA4FxxA
SMA Flat package information
Figure 19. Tape outline
Table 4. Tape dimension values
Dimensions
Ref.
DS12542 - Rev 1
Millimeters
Min.
Typ.
Max.
D0
1.5
1.55
1.6
D1
1.5
F
5.4
5.5
5.6
K0
1.1
1.2
1.3
P0
3.9
4.0
4.1
P1
3.9
4.0
4.1
P2
1.9
2.0
2.1
W
11.7
12
12.3
page 8/13
SMA4FxxA
Reflow profile
2.2
Reflow profile
Figure 20. ST ECOPACK® recommended soldering reflow profile for PCB mounting
250
240-245 °C
Temperature (°C)
-2 °C/s
2 - 3 °C/s
60 sec
(90 max)
200
-3 °C/s
150
-6 °C/s
100
0.9 °C/s
50
Time (s)
0
Note:
DS12542 - Rev 1
30
60
90
120
150
180
210
240
270
300
Minimize air convection currents in the reflow oven to avoid component movement. Maximum soldering profile
corresponds to the latest IPC/JEDEC J-STD-020.
page 9/13
SMA4FxxA
SMA4F Ordering information
3
SMA4F Ordering information
Figure 21. Ordering information scheme
SMA
4
F vv
A
Package:
SMA
Power capability (10 / 1000 µs):
400 W
Flat package
Stand-off voltage:
VRM
Type:
A : unidirectional
Table 5. Ordering information
DS12542 - Rev 1
Order code
Marking
Package
Weight
Base qty.
Delivery mode
SMA4FxxxA
See Section 3.1 Marking.
SMA Flat
39 mg
10000
Tape and reel
page 10/13
SMA4FxxA
Marking
3.1
Marking
Table 6. Marking
DS12542 - Rev 1
Order code
Marking
SMA4F5.0A
4AI
SMA4F6.0A
4AK
SMA4F6.5A
4AL
SMA4F8.5A
4AP
SMA4F10A
4AS
SMA4F11A
4AU
SMA4F12A
4AW
SMA4F13A
4AY
SMA4F14A
4BA
SMA4F15A
4BC
SMA4F16A
4BE
SMA4F18A
4BI
SMA4F20A
4BM
SMA4F22A
4BO
SMA4F23A
4BP
SMA4F24A
4BQ
SMA4F26A
4BS
SMA4F28A
4BU
SMA4F30A
4BW
SMA4F31A
4BX
SMA4F33A
4BZ
SMA4F36A
4CC
SMA4F40A
4CG
SMA4F48A
4CO
SMA4F58A
4CY
SMA4F70A
4DK
SMA4F85A
4DZ
SMA4F100A
4EO
SMA4F130A
4FS
SMA4F154A
4GQ
SMA4F170A
4HG
SMA4F188A
4HY
page 11/13
SMA4FxxA
Revision history
Table 7. Document revision history
DS12542 - Rev 1
Date
Version
28-May-2018
1
Changes
Initial release.
page 12/13
SMA4FxxA
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© 2018 STMicroelectronics – All rights reserved
DS12542 - Rev 1
page 13/13