September 2009 Doc ID 3080 Rev 6 1/10
10
SM15T
Transil™
Features
Peak pulse power:
1500 W (10/1000 µs)
10 kW (8/20 µs)
Breakdown voltage range: from 6.8 V to 220 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
jmax
:
1250 W (10/1000 µs)
JEDEC registered package outline
Complies with the following standards
IEC 61000-4-2 level 4
15 kV (air discharge)
8 kV (contact discharge)
IEC 61000-4-5
See Tabl e 3 for surge level
MIL STD 883G, method 3015-7: class 3B
25 kV HBM (human body model)
UL 497B file number: QVGQ2.E136224
Resin meets UL 94, V0
MIL-STD-750, method 2026 soldererabilty
EIA STD RS-481 and IEC 60286-3 packing
IPC 7531 footprint
Description
The SM15T Transil series has been designed to
protect sensitive equipment against electrostatic
discharges according to IEC 61000-4-2, and
MIL STD 883, method 3015, and electrical over
stress according to IEC 61000-4-4 and 5. These
devices are more generally used against surges
below 1500 W (10/1000 µs).
Planar technology makes these devices suitable
for high-end equipment and SMPS where low
leakage current and high junction temperature are
required to provide reliability and stability over
time.
SM15T are packaged in SMC (SMC footprint in
accordance with IPC 7531 standard).
TM: Transil is a trademark of STMicroelectronics
K
A
Unidirectional Bidirectional
SMC
(JEDEC DO-214AB)
www.st.com
Characteristics SM15T
2/10 Doc ID 3080 Rev 6
1 Characteristics
Figure 1. Electrical characteristics - definitions
Figure 2. Pulse definition for electrical characteristics
Table 1. Absolute maximum ratings (T
amb
= 25 °C)
Symbol Parameter Value Unit
P
PP
Peak pulse power dissipation
(1)
T
j
initial
= T
amb
1500 W
T
stg
Storage temperature range -65 to + 150 °C
T
j
Operating junction temperature range -55 to + 150 °C
T
L
Maximum lead temperature for soldering during 10 s. 260 °C
1. For a surge greater than the maximum values, the diode will fail in short-circuit.
Table 2. Thermal parameter
Symbol Parameter Value Unit
R
th(j-l)
Junction to leads 15 °C/W
R
th(j-a)
Junction to ambient on printed circuit on recommended pad layout 90 °C/W
V
CL
V
BR
V
RM
I
RM
I
R
I
PP
V
I
I
RM
I
R
I
PP
V
RM
V
BR
V
CL
V
CL
V
BR
V
RM
I
RM
I
R
I
PP
V
I
I
RM
I
R
I
PP
V
RM
V
BR
V
CL
V
CL
V
BR
V
RM
I
RM
I
R
I
PP
V
I
I
F
V
F
V
CL
V
BR
V
RM
I
RM
I
R
I
PP
V
I
I
F
V
F
Unidirectional
Bidirectional
Symbol Parameter
V Stand-off voltage
V Breakdown voltage
V Clamping voltage
I Leakage current @ V
I Peak pulse current
T Voltage temperature coefficient
V Forward voltage drop
R Dynamic resistance
RM
BR
CL
RM RM
PP
F
D
α
100
50
0
Pulse waveform
tr = rise time (µs)
tp = pulse duration time (µs)
t
%I
PP
t
p
t
r
SM15T Characteristics
Doc ID 3080 Rev 6 3/10
Table 3. Electrical characteristics, parameter values (T
amb
= 25 °C)
Order code
I
RM
max@V
RM
V
BR
@I
R
(1)
V
CL
@I
PP
10/1000 µs
R
D
10/1000
µs
V
CL
@I
PP
8/20 µs
R
D
8/20
µs
αT
(2)
25 °C 85 °C min typ max max max max
µA V V mA V
(3)
A
(4)
Ω V
(3)
A
(4)
Ω 10-4/ °C
SM15T6V8A/CA 500 2000 5.8 6.45 6.8 7.14 10 10.5 143 0.023 13.4 746 0.008 5.7
SM15T7V5A/CA 250 1000 6.4 7.13 7.5 7.88 10 11.3 132 0.026 14.5 690 0.010 6.1
SM15T10A/CA 10 50 8.55 9.5 10 10.5 1 14.5 103 0.039 18.6 538 0.015 7.3
SM15T12A/CA 0.2 1 10.2 11.4 12 12.6 1 16.7 90 0.046 21.7 461 0.020 7.8
SM15T15A/CA 0.2 1 12.8 14.3 15 15.8 1 21.2 71 0.076 27.2 368 0.031 8.4
SM15T18A/CA 0.2 1 15.3 17.1 18 18.9 1 25.2 59.5 0.106 32.5 308 0.044 8.8
SM15T22A/CA 0.2 1 18.8 20.9 22 23.1 1 30.6 49 0.153 39.3 254 0.064 9.2
SM15T24A/CA 0.2 1 20.5 22.8 24 25.2 1 33.2 45 0.178 42.8 234 0.075 9.4
SM15T27A/CA 0.2 1 23.1 25.7 27 28.4 1 37.5 40 0.228 48.3 207 0.096 9.6
SM15T30A/CA 0.2 1 25.6 28.5 30 31.5 1 41.5 36 0.278 53.5 187 0.12 9.7
SM15T33A/CA 0.2 1 28.2 31.4 33 34.7 1 45.7 33 0.333 59.0 169 0.14 9.8
SM15T36A/CA 0.2 1 30.8 34.2 36 37.8 1 49.9 30 0.403 64.3 156 0.17 9.9
SM15T39A/CA 0.2 1 33.3 37.1 39 41.0 1 53.9 28 0.461 69.7 143 0.20 10.0
SM15T68A/CA 0.2 1 58.1 64.6 68 71.4 1 92 16.3 1.26 121 83 0.60 10.4
SM15T75A/CA 0.2 1 64.1 71.3 75 78.8 1 103 14.6 1.66 134 75 0.74 10.5
SM15T100A/CA 0.2 1 85.5 95.0 100 105 1 137 11 2.91 178 56 1.30 10.6
SM15T150A/CA 0.2 1 128 143 150 158 1 207 7.2 6.81 265 38 2.82 10.8
SM15T200A/CA 0.2 1 171 190 200 210 1 274 5.5 11.6 353 28 5.11 10.8
SM15T220A/CA 0.2 1 188 209 220 231 1 328 4.6 21.1 388 26 6.04 10.8
1. Pulse test : t
p
< 50 ms
2. To calculate V
BR
versus junction temperature, use the following formula: V
BR
@ T
J
= V
BR
@ 25°C
x (1 + αT x (T
J
– 25)).
3. To calculate maximum clamping voltage at other surge level, use the following formula: V
CL
= R
D
x I
PP
+ V
BRmax.
4. Surge capability given for both directions for unidirectional and bidirectional types.

SM15T39CA

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
TVS Diodes / ESD Suppressors 1500W 39V Bidirect
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union