SM6T250CAY
Automotive 600 W Transil™
Datasheet
-
production data
Complies with the following standards
•
IEC 61000-4-2 exceeds level 4:
– 30 kV (air discharge)
– 30 kV (contact discharge)
•
ISO 10605, C = 330 pF, R = 330
Ω
exceeds
level 4:
– 30 kV (air discharge)
– 30 kV (contact discharge)
•
ISO 7637-2
Description
Features
•
Peak pulse power:
– 600 W (10/1000 µs)
– 4 kW (8/20 µs)
•
Stand-off voltage 213 V
•
Bidirectional type
•
Low leakage current:
– 200 nA at 25 °C
– 1 µA at 85 °C
•
Operating T
j max
: 175 °C
•
High power capability at T
j max
•
JEDEC registered package outline
•
Resin meets UL 94, V0
•
AEC-Q101 qualified
The SM6T250CAY Transil series has been
designed to protect sensitive automotive circuits
against surges defined in ISO 7637-2 and against
electrostatic discharges according to IEC 61000-
4-2 and 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. SM6T250CAY is packaged in SMB (SMB
footprint in accordance with IPC 7531 standard).
TM:
Transil is a trademark of STMicroelectronics
April 2015
This is information on a product in full production.
DocID027594 Rev 2
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Characteristics
SM6T250CAY
1
Characteristics
Table 1. Absolute maximum ratings (T
amb
= 25 °C)
Symbol
Parameter
ISO 10605 (C = 330 pF, R = 330
Ω):
Contact discharge
Air discharge
IEC61000-4-2:
Contact discharge
Air discharge
T
j
initial = T
amb
Value
Unit
V
PP
Peak pulse voltage
30
30
30
30
600
-55 to 175
-65 to 175
260
kV
P
PP
T
j
T
stg
T
L
Peak pulse power dissipation
(1)
Operating junction temperature range
Storage temperature range
W
°C
°C
°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
Symbol
V
RM
V
BR
V
CL
I
RM
I
PP
α
T
R
D
P arameter
Stand-off voltage
Breakdown voltage
C lamping voltage
Leakage current @ V
RM
P eak pulse current
Voltage temperature coefficient
Dynamic resistance
I
PP
V
CL
V
BR
V
RM
I
R
I
RM
I
RM
I
R
V
V
RM
V
BR
V
CL
I
PP
Bidirectional
Figure 2. Pulse definition for electrical characteristics
Repetitive pulse current
tr = rise time (µs)
tp = pulse duration time (µs)
tr
tp
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SM6T250CAY
Table 2. Electrical characteristics, parameter values (T
amb
= 25 °C)
I
RM
max at V
RM
Order code
25
°C
nA
SM6T250CAY
200
µA
1
V
213
237
V
250
263
mA
1
V
(3)
344
A
1.75
Ω
53.7
V
(3)
400
A
10
85
min. typ.
max.
max.
max.
V
BR
at I
R (1)
V
CL
at I
PP
10/1000 µs
R
D (2)
10/100
µs
V
CL
at I
PP
8/20 µs
Characteristics
R
D (2)
8/20
µs
αT
max.
Ω
15
10-4/°C
11
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))
Figure 3. Peak power dissipation versus initial Figure 4. Peak pulse power versus exponential
junction temperature
pulse duration (T
j
initial = 25 °C)
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Characteristics
SM6T250CAY
Figure 5. Clamping voltage versus peak pulse current exponential waveform (maximum values)
Figure 6. Junction capacitance versus reverse applied (typical values)
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Characteristics
Figure 7. Relative variation of thermal
Figure 8. Thermal resistance junction to
impedance, junction to ambient, versus pulse ambient versus copper surface under each lead
duration
Figure 9. Leakage current versus junction
temperature (typical values)
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