1/5
SM6T6V8A/220A
SM6T6V8CA/220CA
TRANSIL
TM
s
PEAK PULSE POWER : 600 W (10/1000
s)
s
BREAKDOWN VOLTAGE RANGE :
From 6.8V to 220 V.
s
UNI AND BIDIRECTIONAL TYPES
s
LOW CLAMPING FACTOR
s
FAST RESPONSE TIME
s
UL RECOGNIZED
FEATURES
SMB
(JEDEC D0-214AA)
Symbol
Parameter
Value
Unit
P
PP
Peak pulse power dissipation (see note 1)
Tj initial = T
amb
600
W
P
Power dissipation on infinite heatsink
T
amb =
50C
5
W
I
FSM
Non repetitive surge peak forward
current for unidirectional types
tp = 10ms
Tj initial = T
amb
100
A
T
stg
T
j
Storage temperature range
Maximum junction temperature
- 65 to + 175
150
C
C
T
L
Maximum lead temperature for soldering during 10 s.
260
C
Note 1 : For a surge greater than the maximum values, the diode will fail in short-circuit.
ABSOLUTE MAXIMUM RATINGS (T
amb
= 25C)
DESCRIPTION
Transil diodes provide high overvoltage protection
by clamping action. Their instantaneous response
to transient overvoltages makes them particu-
larly suited to protect voltage sensitive devices
such as MOS Technology and low voltage sup-
plied IC's.
August 2001- Ed: 5A
Symbol
Parameter
Value
Unit
R
th (j-l)
Junction to leads
20
C/W
R
th (j-a)
Junction to ambient on printed circuit on recommended pad
layout
100
C/W
THERMAL RESISTANCES
SM6Txx
2/5
I
I F
V F
V
VCL
VBR
VRM
I PP
I RM
V
Symbol
Parameter
V
RM
Stand-off voltage
V
BR
Breakdown voltage
V
CL
Clamping voltage
I
RM
Leakage current @ V
RM
I
PP
Peak pulse current
T
Voltage temperature coefficient
V
F
Forward voltage drop
ELECTRICAL CHARACTERISTICS (T
amb
= 25C)
Types
I
RM
@ V
RM
V
BR
@
I
R
V
CL
@ I
PP
V
CL
@ I
PP
T
C
max
min nom max
max
max
max
typ
note2
10/1000
s
8/20
s
note3
note4
Uni
directional
Mar-
king
Bi
directional
Mar-
king
A
V
V
V
V
mA
V
A
V
A
10
-4
/C
pF
SM6T6V8A DE
SM6T6V8CA LE
1000
5.8
6.45
6.8
7.14
10
10.5
57
13.4
298
5.7
4000
SM6T7V5A DG
SM6T7V5CA LG
500
6.4
7.13
7.5
7.88
10
11.3
53
14.5
276
6.1
3700
SM6T10A
DP
SM6T10CA
LP
10 8.55
9.5
10
10.5
1
14.5
41
18.6
215
7.3
2800
SM6T12A
DT
SM6T12CA
LT
5 10.2
11.4
12
12.6
1
16.7
36
21.7
184
7.8
2300
SM6T15A
DX
SM6T15CA
LX
1 12.8
14.3
15
15.8
1
21.2
28
27.2
147
8.4
1900
SM6T18A
EE
SM6T18CA
ME
1 15.3
17.1
18
18.9
1
25.2
24
32.5
123
8.8
1600
SM6T22A
EK
SM6T22CA
MK
1 18.8
20.9
22
23.1
1
30.6
20
39.3
102
9.2
1350
SM6T24A
EM
SM6T24CA
MM
1 20.5
22.8
24
25.2
1
33.2
18
42.8
93
9.4
1250
SM6T27A
EP
SM6T27CA
MP
1 23.1
25.7
27
28.4
1
37.5
16
48.3
83
9.6
1150
SM6T30A
ER
SM6T30CA
MR
1 25.6
28.5
30
31.5
1
41.5
14.5
53.5
75
9.7
1075
SM6T33A
ET
SM6T33CA
MT
1 28.2
31.4
33
34.7
1
45.7
13.1
59.0
68
9.8
1000
SM6T36A
EV
SM6T36CA
MV
1 30.8
34.2
36
37.8
1
49.9
12
64.3
62
9.9
950
SM6T39A
EX
SM6T39CA
MX
1 33.3
37.1
39
41.0
1
53.9
11.1
69.7
57
10.0
900
SM6T68A
FQ
SM6T68CA
NQ
1 58.1
64.6
68
71.4
1
92
6.5
121
33
10.4
625
SM6T75A
FS
SM6T75CA
NS
1 64.1
71.3
-
78.8
1
103
5.8
134
30
10.5
575
SM6T100A FY
SM6T100CA NY
1 85.5
95.0 100
105
1
137
4.4
178
22.5
10.6
500
SM6T150A GL
SM6T150CA OL
1 128
143
150
158
1
207
2.9
265
15
10.8
400
SM6T200A GU
SM6T200CA OU
1 171
190
200
210
1
274
2.2
353
11.3
10.8
350
SM6T220A GW SM6T220CA OW
1 188
209
220
231
1
328
2
388
10.3
10.8
330
Note 2 :
Pulse test : tp < 50 ms.
Note 3 :
VBR =
T * (Tamb - 25) * VBR(25C).
Note 4 :
VR = 0 V, F = 1 MHz. For bidirectional types,
capacitance value is divided by 2.
Fig. 1: Peak pulse power dissipation versus initial
junction temperature (printed circuit board).
10 s
1000 s
% I
PP
50
0
t
PULSE WAVEFORM 10/1000
s
100
SM6Txx
3/5
Fig. 2 : Peak pulse power versus exponential pulse duration.
Fig. 3 :
Clamping voltage versus peak pulse current.
Exponential waveform t
p
= 20
s
________
t
p
= 1 ms
-------------
t
p
= 10 ms ...............
Note : The curves of the figure 3 are specified for a junction temperature of 25C before surge.
The given results may be extrapolated for other junction temperatures by using the following formula :
V
BR
=
T
*
[T
amb
-25]
*
V
BR
(25C)
For intermediate voltages, extrapolate the given results.
SM6Txx
4/5
Fig. 6 : Transient thermal impedance junc-
tion-ambient versus pulse duration.
Mounting on FR4 PC Board with Recommended
pad layout.
Fig. 5 : Peak forward voltage drop versus peak
forward current (typical values for unidirectional
types).
Fig. 4b : Capacitance versus reverse applied
voltage for bidirectional types (typical values).
Fig. 4a : Capacitance versus reverse applied
voltage for unidirectional types (typical values).
Fig. 7 : Relative variation of leakage current
versus junction temperature.
SM6Txx
5/5
Packaging : standard packaging is tape and reel.
SOD15 = Standard packaging is in Film.
PACKAGE MECHANICAL DATA
SMB (Plastic)
D
E
E1
c
A1
A2
b
L
SM 6
T 100 C A
SURFACE MOUNT
600W
BIDIRECTIONAL
No suffix: Unidirectional
BREAKDOWN VOLTAGE
ORDER CODE
MARKING : Logo, Date Code, Type Code, Cathode Band (for unidirectional types only).
REF.
DIMENSIONS
Millimeters
Inches
Min.
Max.
Min.
Max.
A1
1.90
2.45
0.075
0.096
A2
0.05
0.20
0.002
0.008
b
1.95
2.20
0.077
0.087
c
0.15
0.41
0.006
0.016
E
5.10
5.60
0.201
0.220
E1
4.05
4.60
0.159
0.181
D
3.30
3.95
0.130
0.156
L
0.75
1.60
0.030
0.063
1.52
2.75
2.3
1.52
FOOTPRINT DIMENSIONS (Millimeter)
SMB Plastic.
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to
change without notice. This publication supersedes and replaces all information previously supplied.
STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written ap-
proval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
2001 STMicroelectronics - Printed in Italy - All rights reserved.
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Weight = 0.12 g
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