SM6TY
Datasheet
Automotive 600 W TVS in SMB
Features
K
A
Bidirectional
Unidirectional
•
•
•
•
•
•
AEC-Q101 qualified
Peak pulse power: 600 W (10/1000 μs) and 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 and 1 μA at 85 °C
Operating Tj max: 150 °C
•
High power capability at Tj max.: up to 515 W (10/1000 µs)
•
Lead finishing: matte tin plating
Complies with the following standards
•
•
•
•
•
•
•
Product status link
SM6TY
SM6T6V8AY,
SM6T6V8CAY,
SM6T7V5AY,
SM6T7V5CAY,
SM6T10AY, SM6T10CAY,
SM6T12AY, SM6T12CAY,
SM6T15AY, SM6T15CAY,
SM6T16V5AY,
SM6T16V5CAY,
SM6T18AY, SM6T18CAY,
SM6T22AY, SM6T22CAY,
SM6T24AY, SM6T24CAY,
SM6T27AY, SM6T27CAY,
SM6T30AY, SM6T30CAY,
SM6T33AY, SM6T33CAY,
SM6T36AY, SM6T36CAY,
SM6T39AY, SM6T39CAY,
SM6T42AY, SM6T42CAY,
SM6T47AY, SM6T47CAY,
SM6T56AY, SM6T56CAY,
SM6T68AY, SM6T68CAY,
SM6T75AY, SM6T75CAY,
SM6T82AY, SM6T82CAY
•
•
•
UL94, V0
J-STD-020 MSL level 1
J-STD-002, JESD 22-B102 E3 and MIL-STD-750, method 2026 solderable
matte tin plated leads
JESD-201 class 2 whisker test
IPC7531 footprint
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 (air discharge)
–
30 kV (contact discharge)
ISO10605 - C = 330 pF, R = 330 Ω exceeds level 4:
–
30 kV (air discharge)
–
30 kV (contact discharge)
ISO7637-2 (Not applicable to parts with stand-off voltage lower than battery
voltage)
–
Pulse1: VS = -150 V
–
Pulse 2a: VS = +112 V
–
Pulse 3a: VS = -220 V
–
Pulse 3b: VS = +150 V
Description
The SM6TY series are designed to protect sensitive automotive circuits against
surges defined in ISO 7637-2 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.
DS6905 - Rev 11 - July 2021
For further information contact your local STMicroelectronics sales office.
www.st.com
SM6TY
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
600
W
PPP
Peak pulse power dissipation
Tstg
Storage temperature range
-65 to +150
°C
Tj
Operating junction temperature range
-55 to +150
°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
DS6905 - Rev 11
page 2/15
SM6TY
Characteristics
Table 2. Electrical characteristics - parameter values (Tamb = 25 °C, unless otherwise specified)
Type
25 °C 85 °C
µA
10 / 1000 µs
VBR at IBR (1)
IRM max at VRM
VCL
Min. Typ. Max.
V
V
(2)(3)
(4)
IPP
Max.
8 / 20µs
RD
VCL
(2)(3)
Max.
Max.
IPP(4)
RD
αT
Max.
Max.
mA
V
A
Ω
V
A
Ω
10-4/°C
SM6T6V8AY/CAY
20
50
5.80 6.45
6.8
7.14
10
10.5
57
0.059
14.4
275
0.027
5.7
SM6T7V5AY/CAY
20
50
6.40 7.13
7.5
7.88
10
11.3
53
0.065
15.2
266
0.027
6.1
SM6T10AY/CAY
20
50
8.55
10.0 10.5
1
14.5
41
0.098
18.6
215
0.038
7.3
SM6T12AY/CAY
0.2
1
10.2 11.4
12
12.6
1
16.7
36
0.114
21.7
184
0.049
7.8
SM6T15AY/CAY
0.2
1
12.8 14.3
15
15.8
1
21.2
28
0.193
27.2
147
0.078
8.4
SM6T16V5AY/CAY
0.2
1
14.1 15.7 16.5 17.3
1
23.1
26
0.254
29
136
0.092
8.6
SM6T18AY/CAY
0.2
1
15.3 17.1
18
18.9
1
25.2
24
0.263
32.5
123
0.111
8.8
SM6T22AY/CAY
0.2
1
18.8 20.9
22
23.1
1
30.6
20
0.375
39.3
102
0.159
9.2
SM6T24AY/CAY
0.2
1
20.5 22.8
24
25.2
1
33.2
18
0.444
42.8
93
0.189
9.4
SM6T27AY/CAY
0.2
1
23.1 25.7
27
28.4
1
37.5
16
0.569
48.3
83
0.240
9.6
SM6T30AY/CAY
0.2
1
25.6 28.5
30
31.5
1
41.5
14.5 0.690
53.5
75
0.293
9.7
SM6T33AY/CAY
0.2
1
28.2 31.4
33
34.7
1
45.7
13.1 0.840
59.0
68
0.357
9.8
SM6T36AY/CAY
0.2
1
30.8 34.2
36
37.8
1
49.9
12
1.01
64.3
62
0.427
9.9
SM6T39AY/CAY
0.2
1
33.3 37.1
39
41.0
1
53.9
11.1
1.16
69.7
57
0.504
10.0
SM6T42AY/CAY
0.2
1
36
40
42.1 44.2
1
58.1
10.3
1.35
76
52
0.611
10.0
SM6T47AY/CAY
0.2
1
40
44
46.7 49.0
1
64.5
9.7
1.59
84.0
48.0 0.728
10.1
SM6T56AY/CAY
0.2
1
47.6 53.2
56
58.8
1
76.6
7.8
2.28
100
40
1.030
10.0
SM6T68AY/CAY
0.2
1
58.1 64.6
68
71.4
1
92
6.5
3.17
121
33
1.503
10.4
SM6T75AY/CAY
0.2
1
64.1 71.3
75
78.8
1
103
5.8
4.17
134
30
1.84
10.5
SM6T82AY/CAY
0.2
1
70.0 77.8 81.9 86.0
1
113
5.5
4.91
146
27.0
2.22
10.5
9.5
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 VCL max versus IPPappli: VCLmax = VBR max + RD x IPPappli
4. Surge capability given for both directions for unidirectional and bidirectional devices
DS6905 - Rev 11
page 3/15
SM6TY
Characteristics (curves)
1.1
Characteristics (curves)
Figure 3. Maximum peak power dissipation versus initial
junction temperature
700
Ppp (W)
Figure 4. Maximum peak pulse power versus exponential
pulse duration
PPP(kW)
100.0
10/1000 µs
Tj initial = 25 °C
600
500
10.0
400
300
1.0
200
100
Tj (°C)
0
0
25
50
75
100
125
150
175
Figure 5. Maximum peak pulse current versus clamping
voltage
IPP (A)
0.1
1.0E-03
t P(ms)
1.0E-02
1.0E-01
1.0E+00
1
1.0E+01
Figure 6. Dynamic resistance versus pulse duration
RD (Ω)
1000
1000.0
Tj initial = 25 °C
100
100.0
10
8/20 µs
SM6T68AY/CAY
1
10.0
0.1
1
10
SM6T82AY/CAY
1.0
SM6T30AY/CAY
SM6T6V8AY/CAY
10/1000 µs
0.1
SM6T30AY/CAY
0.01
VCL (V)
100
1000
Figure 7. Junction capacitance versus reverse applied
voltage (unidirectional types)
C (pF)
10000
SM6T6V8AY/CAY
tp (ms)
0.001
0.01
0.1
1
10
Figure 8. Junction capacitance versus applied voltage
(bidirectional type)
C (pF)
10000
f=1 MHz
Vosc=30 mVRMS
Tj=25°C
f=1 MHz
Vosc=30 mVRMS
Tj=25°C
SM6T6V8AY
1000
1000
SM6T6V8CAY
SM6T30AY
SM6T30CAY
100
100
SM6T82AY
SM6T82CAY
VR (V)
10
1
DS6905 - Rev 11
10
100
1000
VR (V)
10
1
10
100
1000
page 4/15
SM6TY
Characteristics (curves)
Figure 9. Leakage current versus junction temperature
1.E+03
Figure 10. Peak forward voltage drop versus peak forward
current
IR (nA)
1.0E+02
IFM(A)
VR =VRM
VRM < 10 V
1.E+02
1.0E+01
1.E+01
Tj =125 °C
Tj =25 °C
1.0E+00
VR =VRM
VRM ≥ 10 V
1.E+00
1.0E-01
Tj (° C)
VFM(V)
1.E-01
25
50
75
100
125
150
Figure 11. Thermal impedance junction to ambient versus
pulse duration
Zth(j-a) (°C/W)
1.0E-02
0.0
1.0
1.5
2.0
2.5
3.0
Figure 12. Thermal resistance junction to ambient versus
copper area under each lead
Rth(j-a) (°C/W)
150
1000
0.5
Single pulse on recomended footprint.
Epoxy printed circuit board FR4, 70 µm Cu thickness
Single pulse on recommended footprint
.Epoxy printed circuit board FR4, 70 µm Cu thickness
120
100
90
60
10
30
1
0.01
tp (s)
0.1
1
10
100
1000
Figure 13. ISO7637-2 pulse 1: Vs = -150 V with 12 V
battery
DS6905 - Rev 11
0
SCu (cm²)
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Figure 14. ISO7637-2 pulse 2a: Vs = +112 V with 12 V
battery
page 5/15
SM6TY
Characteristics (curves)
Figure 15. ISO7637-2 pulse 3a: Vs = -220 V with 12 V
battery
DS6905 - Rev 11
Figure 16. ISO7637-2 pulse 3b: Vs = +150 V with 12 V
battery
page 6/15
SM6TY
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
SMB package information
Figure 17. SMB package outline
E1
D
E
A1
C
A2
b
L
Table 3. SMB package mechanical data
Dimensions
Inches(1)
Millimeters
Ref.
Min.
Max.
Min.
Max.
A1
1.90
2.45
0.0748
0.0965
A2
0.05
0.20
0.0020
0.0079
b
1.95
2.20
0.0768
0.0867
c
0.15
0.40
0.0059
0.0157
D
3.30
3.95
0.1299
0.1556
E
5.10
5.60
0.2008
0.2205
E1
4.05
4.60
0.1594
0.1811
L
0.75
1.50
0.0295
0.0591
1. Values in inches are converted from mm
DS6905 - Rev 11
page 7/15
SM6TY
SMB package information
Figure 18. SMB recommended footprint
1.62
0.064
2.60
(0.102)
Figure 19. Marking layout
1.62
0.064
2.18
(0.086)
5.84
(0.230)
millimeters
(inches)
Figure 20. Package orientation in reel
Bidirectional
Figure 21. Tape and reel orientation
Unidirectional
Taped according to EIA-481
Pocket dimensions are not on scale.
Pocket shape may vary depending on package
On bidirectional devices, marking and logo may not be always in the
same direction.
Figure 22. Reel dimensions (mm)
DS6905 - Rev 11
Figure 23. Inner box dimensions (mm)
page 8/15
SM6TY
SMB package information
Figure 24. Tape and reel outline
Table 4. Tape and reel mechanical data
Dimensions
Millimeters
Ref.
DS6905 - Rev 11
Min.
Typ.
Max.
ØD0
1.5
1.55
1.6
ØD1
1.5
F
5.4
5.5
5.6
K0
2.64
2.74
2.84
P0
3.9
4.0
4.1
P1
7.9
8.0
8.1
P2
1.9
2.0
2.1
W
11.7
12.0
12.3
page 9/15
SM6TY
Reflow profile
2.2
Reflow profile
Figure 25. 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:
DS6905 - Rev 11
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
SM6TY
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”.
DS6905 - Rev 11
page 11/15
SM6TY
SM6TY Ordering information
4
Ordering information
Figure 26. Ordering information scheme
SM
6 T XX CA
Y
Surface mount
Peak pulse power
6 = 600 W Transil in SMB
Breakdown voltage
30 = 30 V
Types
CA = Bidirectional
A = Unidirectional
Automotive grade
Table 5. Ordering information
DS6905 - Rev 11
Order code
Marking
Package
Weight
Base qty.
Delivery mode
SM6TxxxAY / CAY
See Table 6. Marking
SMB
0.11 g
2500
Tape and reel
page 12/15
SM6TY
SM6TY Ordering information
Table 6. Marking
Order code
DS6905 - Rev 11
Marking
Order code
Marking
SM6T6V8AY
DEY
SM6T6V8CAY
LEY
SM6T7V5AY
DGY
SM6T7V5CAY
LGY
SM6T10AY
DPY
SM6T10CAY
LPY
SM6T12AY
DTY
SM6T12CAY
LTY
SM6T15AY
DXY
SM6T15CAY
LXY
SM6T16V5AY
DZY
SM6T16V5CAY
LZY
SM6T18AY
EEY
SM6T18CAY
MEY
SM6T22AY
EKY
SM6T22CAY
MKY
SM6T24AY
EMY
SM6T24CAY
MMY
SM6T27AY
EPY
SM6T27CAY
MPY
SM6T30AY
ERY
SM6T30CAY
MRY
SM6T33AY
ETY
SM6T33CAY
MTY
SM6T36AY
EVY
SM6T36CAY
MVY
SM6T39AY
EXY
SM6T39CAY
MXY
SM6T42AY
FBY
SM6T42CAY
NAY
SM6T47AY
FAY
SM6T47CAY
NBY
SM6T56AY
FLY
SM6T56CAY
NLY
SM6T68AY
FQY
SM6T68CAY
NQY
SM6T75AY
FSY
SM6T75CAY
NSY
SM6T82AY
FWY
SM6T82CAY
NWY
page 13/15
SM6TY
Revision history
Table 7. Document revision history
Date
Version
Changes
15-Sep-2010
1
Initial release.
18-Oct-2011
2
Deleted old Table 2. Thermal parameter. Updated Table 2 and added order
codes in Table 4. Updated Figure 5, Figure 10 and Figure 11.
Updated Complies with the following standards on page 1.
27-Mar-2012
3
Added footnote on page 1.
26-Sep-2014
4
Updated Table 2 and Table 4. Reformatted to current standard.
19-Nov-2014
5
Updated Figure 7 and Figure 8.
05-Oct-2015
6
Updated Figure 17.
09-Jan-2018
7
Updated Table 2: "Electrical characteristics parameter values (Tamb = 25 °C,
unless otherwise specified)".
16-Mar-2018
8
Updated revision numbering.
20-Mar-2018
9
Updated order code SM6T16V5AY/SM6T16V5CAY.
02-May-2019
10
Added Section 2.2 Reflow profile and Section 3 Application and design
guidelines.
07-Jul-2021
11
Updated Section 1.1 Characteristics (curves) and Table 6. Marking.
DS6905 - Rev 11
Updated Figure 12, Figure 14, Figure 15, Figure 16 and Figure 17. Inserted
Figure 7.
page 14/15
SM6TY
IMPORTANT NOTICE – PLEASE READ CAREFULLY
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST
products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST
products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of
Purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. For additional information about ST trademarks, please refer to www.st.com/trademarks. All other product or service
names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2021 STMicroelectronics – All rights reserved
DS6905 - Rev 11
page 15/15