SM6TY
Automotive 600 W Transil™
Datasheet
−
production data
Features
■
Peak pulse power:
– 600 W (10/1000 µs)
– 4 kW (8/20 µs)
Stand-off voltage range: from 6 V to 70 V
Unidirectional and bidirectional types
Low leakage current:
– 0.2 µA at 25 °C
– 1 µA at 85 °C
Operating T
j max
: 150 °C
High power capability at T
j max
:
– 515 W (10/1000 µs)
JEDEC registered package outline
Resin meets UL 94, V0
AEC-Q101 qualified
K
A
■
■
■
Unidirectional
Bidirectional
SMB
(JEDEC DO-214AA)
■
■
■
■
■
Description
The SM6TY Transil series has been designed to
protect sensitive automotive circuits against
surges defined in ISO 7637-2 and against
electrostatic discharges according ISO 10605.
The planar technology makes this device
compatible with high-end circuits where low
leakage current and high junction temperature are
required to provide reliability and stability over
time. SM6TY are packaged in SMB (SMB
footprint in accordance with IPC 7531 standard).
Complies with the following standards
■
ISO 10605, C = 150 pF, R = 330
Ω:
– 30 kV (air discharge)
– 30 kV (contact discharge)
ISO 10605, C = 330 pF, R = 330
Ω:
– 30 kV (air discharge)
– 30 kV (contact discharge)
ISO 7637-2
(a)
– Pulse 1: V
S
= -100 V
– Pulse 2a: V
S
= +50 V
– Pulse 3a: V
S
= -150 V
– Pulse 3b: V
S
= +100 V
■
■
a. Not applicable to parts with stand-off voltage lower
than the average battery voltage (13.5 V)
TM:
Transil is a trademark of STMicroelectronics
March 2012
This is information on a product in full production.
Doc ID 17741 Rev 3
1/12
www.st.com
12
Characteristics
SM6TY
1
Table 1.
Symbol
Characteristics
Absolute maximum ratings (T
amb
= 25 °C)
Parameter
ISO 10605 (C = 330 pF, R = 330
Ω):
Contact discharge
Air discharge
ISO 10605 (C = 150 pF, R = 330
Ω):
Contact discharge
Air discharge
T
j
initial = T
amb
Value
Unit
V
PP
Peak pulse voltage
30
30
30
30
600
-55 to 150
-65 to 150
260
kV
P
PP
T
j
T
stg
T
L
Peak pulse power dissipation
(1)
Operating junction temperature range
Storage temperature range
W
°C
Maximum lead temperature for soldering during 10 s.
1. For a surge greater than the maximum values, the diode will fail in short-circuit.
Figure 1.
Electrical characteristics - definitions
I
I
I
PP
Symbol
V
RM
V
BR
V
CL
I
RM
I
PP
α
T
V
F
R
D
Parameter
Stand-off voltage
Breakdown voltage
Clamping voltage
Leakage current @ V
RM
Peak pulse current
Voltage temperature coefficient
Forward voltage drop
Dynamic resistance
Unidirectional
I
F
V
CL
V
BR
V
RM
I
RM
I
R
V
F
V
V
CL
V
BR
V
RM
I
R
I
RM
I
RM
I
R
V
V
RM
V
BR
V
CL
I
PP
I
PP
Bidirectional
Figure 2.
Pulse definition for electrical characteristics
Repetitive pulse current
tr = rise time (µs)
tp = pulse duration time (µs)
tr
tp
2/12
Doc ID 17741 Rev 3
SM6TY
Table 2.
Electrical characteristics, parameter values (T
amb
= 25 °C)
I
RM
max @ V
RM
Order code
25 °C 85 °C
µA
SM6T6V8AY/CAY
SM6T7V5AY/CAY
SM6T10AY/CAY
SM6T12AY/CAY
SM6T15AY/CAY
SM6T18AY/CAY
SM6T22AY/CAY
SM6T24AY/CAY
SM6T27AY/CAY
SM6T30AY/CAY
SM6T33AY/CAY
SM6T36AY/CAY
SM6T39AY/CAY
SM6T42AY/CAY
SM6T47AY/CAY
SM6T56AY/CAY
SM6T68AY/CAY
SM6T75AY/CAY
SM6T82AY/CAY
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
50
50
50
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
V
V
BR
@I
R
(1)
Characteristics
V
CL
@ I
PP
R
D (2)
V
CL
@ I
PP
R
D (2)
10/1000 µs 10/1000 µs 8/20 µs 8/20 µs
max.
mA
10
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
V
(3)
10.5
11.3
14.5
16.7
21.2
25.2
30.6
33.2
37.5
41.5
45.7
49.9
53.9
58.1
64.5
76.6
92
103
113
A
(4)
57.0
53.0
41.0
36.0
28v
24.0
20.0
18.0
16.0
14.5
13.1
12.0
11.1
10.3
9.7
7.8
6.5
5.8
5.5
Ω
0.059
0.065
0.098
0.114
0.193
0.263
0.375
0.444
0.569
0.69
0.84
1.01
1.16
1.35
1.59
2.28
3.17
4.17
4.91
max.
V
(3)
A
(4)
13.4 298
14.5 276
18.6 215
21.7 184
27.2 147
32.5 123
39.3 102
Ω
0.021
0.024
0.038
0.049
0.078
0.111
0.159
αT
max.
10-4/ °C
5.70
6.10
7.30
7.80
8.40
8.80
9.20
9.40
9.60
9.70
9.80
9.90
10.0
10.0
10.1
10.0
10.4
10.5
10.5
min. typ. max.
V
5.80 6.45 6.80 7.10
6.40 7.13 7.50 7.90
8.55 9.50 10.0 10.5
10.2 11.4 12.0 12.6
12.8 14.3 15.0 15.8
15.3 17.1 18.0 18.9
18.8 20.9 22.0 23.1
20.5 22.8 24.0 25.2
23.1 25.7 27.0 28.4
25.6 28.5 30.0 31.5
28.2 31.4 33.0 34.7
30.8 34.2 36.0 37.8
33.3 37.1 39.0 41.0
36.0 40.0 42.1 44.2
40.0 44.4 46.7 49.0
47.6 53.2 56.0 58.8
58.1 64.6 68.0 71.4
64.1 71.3 75.0 78.8
70.0 77.8 81.9 86.0
42.8 93.0 0.189
48.3 83.0 0.240
53.5 75.0 0.293
59.0 68.0 0.357
64.3 62.0 0.427
69.7 57.0 0.504
76.0 52.0 0.611
84.0 48.0 0.728
100 40.0
121 33.0
134 30.0
146 27.0
1.03
1.50
1.84
2.22
1. Pulse test: t
p
< 50 ms
2. To calculate maximum clamping voltage at another surge level, use the following formula:
V
CLmax
= V
CL
- R
D
x (I
PP
- I
PPappli
) where I
PPappli
is the surge current in the application.
3. To calculate V
BR
or V
CL
versus junction temperature, use the following formulas:
V
BR
@ T
J
= V
BR
@ 25°C x (1 +
αT
x (T
J
- 25))
V
CL
@ T
J
= V
CL
@ 25°C x (1 +
αT
x (T
J
- 25))
4. Surge capability given for both directions for unidirectional and bidirectional types.
Doc ID 17741 Rev 3
3/12
Characteristics
SM6TY
Figure 3.
Peak power dissipation versus
initial junction temperature
(typical values)
Figure 4.
Peak pulse power versus
exponential pulse duration
P
pp
(W)
700
10/1000 µs
600
500
10.0
100.0
P
PP
(kW)
T
j
initial = 25 °C
400
300
1.0
200
100
T
j
(°C)
0
0
25
50
75
100
125
150
175
0.1
1.0E-03
1.0E-02
1.0E-01
1.0E+00
1.0E+01
t
P
(ms)
Figure 5.
Clamping voltage versus peak pulse current exponential waveform (maximum values)
1000.0
I
PP
(A)
T
j initial
= 25 °C
100.0
8/20 µs
10.0
SM6T6V8AY/CAY
10/1000 µs
SM6T30AY/CAY
1.0
SM6T82AY/CAY
0.1
1
V
CL
(V)
100
1000
10
4/12
Doc ID 17741 Rev 3
SM6TY
Figure 6.
10
0
-10
-20
-30
-40
-50
Current (A)
0
-2
-4
-6
-8
-10
-12
0.0
1.0
2.0
3.0
Characteristics
ISO 7637-2 pulse 1 response (V
S
= -100 V)
Voltage (V)
SM6T36AY
SM6T36CAY
Time (ms)
4.0
Figure 7.
ISO 7637-2 pulse 2a response (V
S
= 50 V)
Voltage (V)
50
40
30
20
10
0
Current (A)
SM6T36AY
SM6T36CAY
Note: Curves superimposed
12
10
8
6
4
2
0
Time (µs)
0
20
30
40
50
60
70
80
90
100
Doc ID 17741 Rev 3
5/12
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