SMA4FxxAY
Datasheet
Automotive 400 W TVS in SMA Flat
Features
•
•
•
•
•
•
•
AEC-Q101 qualified
Peak pulse power: 400 W (10/1000 μs) and 2.5 kW (8/20 μs)
Flat and thin package: 1 mm
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
•
•
•
•
•
•
Product status link
SM4FY
SMA4F5.0AY, SMA4F6.0AY,
SMA4F6.5AY, SMA4F8.5AY,
SMA4F10AY, SMA4F11AY,
SMA4F12AY, SMA4F13AY,
SMA4F14AY, SMA4F15AY,
SMA4F16AY, SMA4F18AY,
SMA4F20AY, SMA4F22AY,
SMA4F23AY, SMA4F24AY,
SMA4F26AY, SMA4F28AY,
SMA4F30AY, SMA4F31AY,
SMA4F33AY, SMA4F36AY,
SMA4F40AY, SMA4F48AY,
SMA4F58AY, SMA4F64AY,
SMA4F70AY, SMA4F85AY,
SMA4F100AY, SMA4F130AY,
SMA4F154AY, SMA4F170AY,
SMA4F188AY
•
•
•
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 61000-4-4 level 4:
–
4 kV
ISO10605, IEC 61000-4-2, C = 150 pF - R = 330 Ω exceeds level 4:
–
30 kV (contact discharge)
–
30 kV (air discharge)
ISO10605, C = 330 pF, R = 330 Ω exceeds level 4:
–
30 kV (contact discharge)
–
30 kV (air discharge)
ISO7637-2 (Not applicable to parts with VRM lower than battery voltage)
–
Pulse 1: VS = -150 V
–
Pulse 2a: VS = +112 V
–
Pulse 3a: VS = -220 V
–
Pulse 3b: VS = +150 V
Description
The SMA4FY Transil series are designed to protect sensitive automotive circuits
against surges defined in ISO 7637 series and against electrostatic discharges
according to ISO 10605.
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.
DS12492 - Rev 3 - August 2019
For further information contact your local STMicroelectronics sales office.
www.st.com
SMA4FxxAY
Characteristics
1
Characteristics
Table 1. Absolute maximum ratings (Tamb = 25 °C)
Symbol
Parameter
Value
Unit
ISO10605 (C = 330 pF, R = 330 Ω):
VPP
Peak pulse voltage
Contact discharge
30
Air discharge
30
kV
ISO10605 / IEC 61000-4-2 (C = 150 pF, R = 330 Ω)
Contact discharge
30
Air discharge
30
10/1000 µs, Tj initial = Tamb
400
W
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
Figure 2. Pulse definition for electrical characteristics
DS12492 - Rev 3
page 2/15
SMA4FxxAY
Characteristics
Table 2. Electrical characteristics - parameter values (Tamb = 25 °C, unless otherwise specified)
Type
25 °C
85 °C
µA
10 / 1000 µs
VBR at IR (1)
IRM max at VRM
Min.
V
Typ.
(2)(3)
VCL
Max.
V
(4)
IPP
Max.
mA
8 / 20 µs
RD
(2)(3)
VCL
Max.
Max.
(4)
IPP
αT
RD
Max.
Max.
V
A(4)
Ω
V
A(4)
Ω
10-4/°C
SMA4F5.0AY
20
50
5.0
6.4
6.74
7.1
10
9.2
43.5
0.048
13.4
174
0.036
5.7
SMA4F6.0AY
20
50
6.0
6.7
7.05
7.4
10
10.3
38.8
0.075
13.7
170
0.037
5.9
SMA4F6.5AY
20
50
6.5
7.2
7.58
8
10
11.2
35.7
0.09
14.5
160
0.041
6.1
SMA4F8.5AY
20
50
8.5
9.4
9.9
10.4
1
14.4
27.7
0.144
19.5
124
0.073
7.3
SMA4F10AY
0.2
1
10
11.1
11.7
12.3
1
17
23.5
0.2
21.7
106
0.089
7.8
SMA4F11AY
0.2
1
11
12.3
13
13.7
1
18
21.8
0.216
24.2
96
0.11
8.1
SMA4F12AY
0.2
1
12
13.3
14
14.7
1
19.9
20.1
0.259
25.3
91
0.116
8.3
SMA4F13AY
0.2
1
13
14.4
15.2
16
1
21.5
18.6
0.296
27.2
85
0.132
8.4
SMA4F14AY
0.2
1
14
15.7
16.5
17.3
1
23.1
17.2
0.337
29
79
0.148
8.6
SMA4F15AY
0.2
1
15
16.7
17.6
18.5
1
24.4
16.4
0.36
32.5
71
0.197
8.8
SMA4F16AY
0.2
1
16
17.9
18.8
19.8
1
26
15.4
0.403
34.7
67
0.222
9.0
SMA4F18AY
0.2
1
18
20
21.1
22.2
1
29.2
13.7
0.511
39.3
59
0.29
9.2
SMA4F20AY
0.2
1
20
22.2
23.4
24.6
1
32.4
12.3
0.634
42.8
54
0.337
9.4
SMA4F22AY
0.2
1
22
24.4
25.7
27
1
35.5
11.2
0.759
48.3
48
0.444
9.6
SMA4F23AY
0.2
1
23
25.7
27
28.4
1
37.8
10.6
0.888
49.2
47
0.444
9.6
SMA4F24AY
0.2
1
24
26.7
28.1
29.5
1
38.9
10.3
0.913
50
46
0.446
9.6
SMA4F26AY
0.2
1
26
28.9
30.4
31.9
1
42.1
9.5
1.07
53.5
43
0.502
9.7
SMA4F28AY
0.2
1
28
31.1
32.7
34.3
1
45.4
8.8
1.26
59
39
0.633
9.8
SMA4F30AY
0.2
1
30
33.2
35
36.8
1
48.4
8.3
1.39
64.3
36
0.761
9.9
SMA4F31AY
0.2
1
31
34.2
36
37.8
1
50.2
8
1.56
65
35
0.77
9.9
SMA4F33AY
0.2
1
33
36.7
38.6
40.5
1
53.3
7.5
1.71
69.7
33
0.885
10
SMA4F36AY
0.2
1
36
40
42.1
44.2
1
58.1
6.9
2.01
76
30
1.06
10
SMA4F40AY
0.2
1
40
44.4
46.7
49
1
64.5
6.2
2.5
84
27
1.3
10.1
SMA4F48AY
0.2
1
48
53.2
56
58.8
1
77.4
5.2
3.56
100
23
1.79
10.3
SMA4F58AY
0.2
1
58
64.6
68
71.4
1
93.6
4.3
5.21
121
19
2.62
10.4
SMA4F64AY
0.2
1
64
71.1
74.8
78.6
1
103
3.9
6.25
134
17
3.25
10.5
SMA4F70AY
0.2
1
70
77.9
82
86.1
1
113
3.5
7.71
146
16
3.75
10.5
SMA4F85AY
0.2
1
85
95
100
105
1
137
2.9
11.4
178
13
5.69
10.6
SMA4F100AY
0.2
1
100
111
117
123
1
162
2.5
15.6
212
11
8.09
10.7
SMA4F130AY
0.2
1
130
144
152
160
1
209
1.9
25.8
265
9
11.7
10.8
SMA4F154AY
0.2
1
154
171
180
189
1
246
1.6
35.6
317
7
18.3
10.8
SMA4F170AY
0.2
1
170
190
200
210
1
275
1.4
47
353
6.5
22.2
10.8
SMA4F188AY
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 VCLmax versus IPPappli: VCLmax = VBR max + RD x IPPappli
3. To calculate VCL versus Tj: VCL at TJ = VCL at 25 °C x (1 + αT x (Tj - 25))
DS12492 - Rev 3
page 3/15
SMA4FxxAY
Characteristics (curves)
4. Surge capability given for both directions
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
SMA4F188AY
10
10
1
SMA4F33AY
SMA4F188AY
SMA4F70AY
0.1
SMA4F33AY
SMA4F5.0AY
1
0.1
SMA4F5.0AY
VCL (V)
1
DS12492 - Rev 3
10
100
SMA4F70AY
1000
0.01
0.01
tp (ms)
0.1
1
10
page 4/15
SMA4FxxAY
Characteristics (curves)
Figure 7. Junction capacitance versus reverse applied
voltage (unidirectional types)
I (nA)
10000 R
C (nF)
10
Figure 8. Leakage current versus junction temperature
VR = VRM
f = 1 MHz
Vosc = 30mVRMS
Tj = 25 °C
VRM < 10V
1000
SMA4F5.0AY
1
100
0.1
SMA4F33AY
VRM ≥ 10V
10
SMA4F70AY
SMA4F188AY
0.01
1
VR (V)
1
10
100
1000
Figure 9. Peak forward voltage drop versus peak forward
current
100
IF (A)
Tj (°C)
25
75
100
125
150
175
Figure 10. Thermal impedance junction to ambient versus
pulse duration
1000
Zth(j-a) (°C/W)
Single pulse on recommended footprint.
Epoxy printed circuit board FR4, 70 µm Cu thickness
single pulse
10
50
100
Tj = 175 °C
Tj = 25 °C
1
10
V F (V)
0
0
0.5
1
1.5
2
2.5
3
3.5
Figure 11. Thermal resistance junction to ambient versus
copper area under each lead
160
1
0.01
tp (s)
0.1
1
10
100
1000
Figure 12. ISO7637-2 pulse 1: Vs = -150 V with 12 V
battery
Rth(j-a) (°C/W)
Single pulse on recommended footprint.
Epoxy printed circuit board FR4, 70 µm Cu thickness
140
120
100
80
60
40
20
0
SCu (cm²)
0
0.5
DS12492 - Rev 3
1
1.5
2
2.5
3
3.5
4
4.5
5
page 5/15
SMA4FxxAY
Characteristics (curves)
Figure 13. ISO7637-2 pulse 2a: Vs = +112 V with 12 V
battery
Figure 14. ISO7637-2 pulse 3a: Vs = -220 V with 12 V
battery
Figure 15. ISO7637-2 pulse 3b: Vs = +150 V with 12 V battery
DS12492 - Rev 3
page 6/15
SMA4FxxAY
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 16. 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.
DS12492 - Rev 3
page 7/15
SMA4FxxAY
SMA Flat package information
Figure 17. SMA Flat recommended footprint in mm
(inches)
Figure 18. SMA Flat marking
Figure 19. Package orientation in reel
Figure 20. Tape and reel orientation
Figure 21. 13'' reel dimension values
Figure 22. Inner box dimension values
DS12492 - Rev 3
page 8/15
SMA4FxxAY
SMA Flat package information
Figure 23. Tape outline
Table 4. Tape dimension values
Dimensions
Ref.
DS12492 - Rev 3
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 9/15
SMA4FxxAY
Reflow profile
2.2
Reflow profile
Figure 24. 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:
DS12492 - Rev 3
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 10/15
SMA4FxxAY
Application and design guidelines
3
Application and design guidelines
More information is available in the application note AN2689 “Protection of automotive electronics from electrical
hazards, guidelines for design and component selection”.
DS12492 - Rev 3
page 11/15
SMA4FxxAY
Ordering information
4
Ordering information
Figure 25. Ordering information scheme
SMA
4
F vv
A
Y
Package:
SMA
Power capability (10 / 1000 µs):
400 W
Flat package
Stand-off voltage:
VRM
Type:
A : unidirectional
Automotive grade
Table 5. Ordering information
DS12492 - Rev 3
Order code
Marking
Package
Weight
Base qty.
Delivery mode
SMA4FxxxAY
See Table 6. Marking.
SMA Flat
39 mg
10000
Tape and reel
page 12/15
SMA4FxxAY
Marking
4.1
Marking
Table 6. Marking
DS12492 - Rev 3
Order code
Marking
SMA4F5.0AY
4AIY
SMA4F6.0AY
4AKY
SMA4F6.5AY
4ALY
SMA4F8.5AY
4APY
SMA4F10AY
4ASY
SMA4F11AY
4AUY
SMA4F12AY
4AWY
SMA4F13AY
4AYY
SMA4F14AY
4BAY
SMA4F15AY
4BCY
SMA4F16AY
4BEY
SMA4F18AY
4BIY
SMA4F20AY
4BMY
SMA4F22AY
4BOY
SMA4F23AY
4BPY
SMA4F24AY
4BQY
SMA4F26AY
4BSY
SMA4F28AY
4BUY
SMA4F30AY
4BWY
SMA4F31AY
4BXY
SMA4F33AY
4BZY
SMA4F36AY
4CCY
SMA4F40AY
4CGY
SMA4F48AY
4COY
SMA4F58AY
4CYY
SMA4F64AY
4DEY
SMA4F70AY
4DKY
SMA4F85AY
4DZY
SMA4F100AY
4EOY
SMA4F130AY
4FSY
SMA4F154AY
4GQY
SMA4F170AY
4HGY
SMA4F188AY
4HYY
page 13/15
SMA4FxxAY
Revision history
Table 7. Document revision history
Date
Version
01-Oct-2018
1
Initial release.
28-Feb-2019
2
Updated links syntax.
3
Updated Table 1. Absolute maximum ratings (Tamb = 25 °C),
Figure 10. Thermal impedance junction to ambient versus pulse duration and
Figure 11. Thermal resistance junction to ambient versus copper area under
each lead.
26-Aug-2019
DS12492 - Rev 3
Changes
page 14/15
SMA4FxxAY
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Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2019 STMicroelectronics – All rights reserved
DS12492 - Rev 3
page 15/15