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1.5SMC43AT3G

P1-P3P4-P6P7-P7
1 Publication Order Number:
1.5SMC6.8AT3/D
1.5SMC6.8AT3G Series,
SZ1.5SMC6.8AT3G Series
1500 Watt Peak Power
Zener Transient Voltage
Suppressors
Unidirectional*
The SMC series is designed to protect voltage sensitive
components from high voltage, high energy transients. They have
excellent clamping capability,
high surge capability, low zener
impedance and fast response time. The SMC series is supplied in
the exclusive, cost-effective, highly reliable Littelfuse
package and is ideally suited for use in
communication systems, automotive, numerical controls, process
controls, medical equipment, business machines, power supplies and
many other industrial/consumer applications.
Specification Features
• Working Peak Reverse Voltage Range − 5.8 to 77.8 V
• Standard Zener Breakdown Voltage Range − 6.8 to 91 V
• Peak Power − 1500 W @ 1.0 ms
• ESD Rating of Class 3 (> 16 kV) per Human Body Model
• Maximum Clamp Voltage @ Peak Pulse Current
• Low Leakage < 5.0 mA Above 10 V
• UL 497B for Isolated Loop Circuit Protection
• Maximum Temperature Coefficient Specified
• Response Time is Typically < 1.0 ns
• SZ Prefix for Automotive and Other Applications Requiring Unique
Site and Control Change Requirements; AEC−Q101 Qualified and
PPAP Capable
• These are Pb−Free Devices are Available**
Mechanical Characteristics
CASE:
Void-free, transfer-molded, thermosetting plastic
FINISH: All external surfaces are corrosion resistant and leads are
readily solderable
MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
260°C for 10 Seconds
LEADS:
Modified L−Bend providing more contact area to bond pads
POLARITY: Cathode indicated by molded polarity bend
MOUNTING POSITION: Any
**Bidirectional devices will not be available in this series.
SURFACE MOUNT
ZENER OVERVOLTAGE
TRANSIENT SUPPRESSORS
5.8 − 78 VOLTS
1500 WATT PEAK POWER
Device*** Package Shipping
ORDERING INFORMATION
SMC
CASE 403
Cathode Anode
MARKING DIAGRAM
Littelfuse.com
Individual devices are listed on page 3 of this data sheet.
***The “T3” suffix refers to a 13 inch reel.
1.5SMCxxxAT3G SMC
(Pb−Free)
2,500 /
Tape & Reel
xxxA = Specific Device Code
(See Table on Page 3)
A = Assembly Location
Y = Year
WW = Work Week
G =Pb−Free Package
(Note: Microdot may be in either location)
SZ1.5SMCxxxAT3G SMC
(Pb−Free)
2,500 /
Tape & Reel
Specifications subject to change without notice. © 2016 Littelfuse, Inc.
September 19, 2016 − Rev. 11
1.5SMC6.8AT3G Series, SZ1.5SMC6.8AT3G Series
MAXIMUM RATINGS
Rating Symbol Value Unit
Peak Power Dissipation (Note 1) @ T
L
= 25°C, Pulse Width = 1 ms P
PK
1500 W
DC Power Dissipation @ T
L
= 75°C
Measured Zero Lead Length (Note 2)
Derate Above 75°C
Thermal Resistance, Junction−to−Lead
P
D
R
q
JL
4.0
54.6
18.3
W
mW/°C
°C/W
DC Power Dissipation (Note 3) @ T
A
= 25°C
Derate Above 25°C
Thermal Resistance from Junction−to−Ambient
P
D
R
q
JA
0.75
6.1
165
W
mW/°C
°C/W
Forward Surge Current (Note 4) @ T
A
= 25°C I
FSM
200 A
Operating and Storage Temperature Range T
J
, T
stg
−65 to +150 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. 10 X 1000 ms, non−repetitive
2. 1 in. square copper pad, FR−4 board
3. FR−4 board, using Littelfuse minimum recommended footprint, as shown in 403 case outline dimensions spec.
4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum.
ELECTRICAL CHARACTERISTICS (T
A
= 25°C unless
otherwise noted, V
F
= 3.5 V Max. @ I
F
(Note 5) = 100 A)
Symbol
Parameter
I
PP
Maximum Reverse Peak Pulse Current
V
C
Clamping Voltage @ I
PP
V
RWM
Working Peak Reverse Voltage
I
R
Maximum Reverse Leakage Current @ V
RWM
V
BR
Breakdown Voltage @ I
T
I
T
Test Current
QV
BR
Maximum Temperature Coefficient of V
BR
I
F
Forward Current
V
F
Forward Voltage @ I
F
5. 1/2 sine wave or equivalent, PW = 8.3 ms non−repetitive duty
cycle
Uni−Directional TVS
I
PP
I
F
V
I
I
R
I
T
V
RWM
V
C
V
BR
V
F
2
Publication Order Number:
1.5SMC6.8AT3/D
Specifications subject to change without notice. © 2016 Littelfuse, Inc.
September 19, 2016 − Rev. 11
1.5SMC6.8AT3G Series, SZ1.5SMC6.8AT3G Series
ELECTRICAL CHARACTERISTICS
Device*
Device
Marking
V
RWM
(Note 6)
I
R
@ V
RWM
Breakdown Voltage V
C
@ I
PP
(Note 8)
QV
BR
V
BR
V (Note 7) @ I
T
V
C
I
PP
V
mA
Min Nom Max mA V A %/5C
1.5SMC6.8AT3G
1.5SMC7.5AT3G
1.5SMC8.2AT3G
6V8A
7V5A
8V2A
5.8
6.4
7.02
1000
500
200
6.45
7.13
7.79
6.8
7.5
8.2
7.14
7.88
8.61
10
10
10
10.5
11.3
12.1
143
132
124
0.057
0.061
0.065
1.5SMC10AT3G
1.5SMC12AT3G
1.5SMC13AT3G
10A
12A
13A
8.55
10.2
11.1
10
5
5
9.5
11.4
12.4
10
12
13
10.5
12.6
13.7
1
1
1
14.5
16.7
18.2
103
90
82
0.073
0.078
0.081
1.5SMC15AT3G
1.5SMC16AT3G
1.5SMC18AT3G
1.5SMC20AT3G
15A
16A
18A
20A
12.8
13.6
15.3
17.1
5
5
5
5
14.3
15.2
17.1
19
15
16
18
20
15.8
16.8
18.9
21
1
1
1
1
21.2
22.5
25.2
27.7
71
67
59.5
54
0.084
0.086
0.088
0.09
1.5SMC22AT3G
1.5SMC24AT3G
1.5SMC27AT3G
1.5SMC30AT3G
22A
24A
27A
30A
18.8
20.5
23.1
25.6
5
5
5
5
20.9
22.8
25.7
28.5
22
24
27
30
23.1
25.2
28.4
31.5
1
1
1
1
30.6
33.2
37.5
41.4
49
45
40
36
0.092
0.094
0.096
0.097
1.5SMC33AT3G
1.5SMC36AT3G
1.5SMC39AT3G
1.5SMC43AT3G
33A
36A
39A
43A
28.2
30.8
33.3
36.8
5
5
5
5
31.4
34.2
37.1
40.9
33
36
39
43
34.7
37.8
41
45.2
1
1
1
1
45.7
49.9
53.9
59.3
33
30
28
25.3
0.098
0.099
0.1
0.101
1.5SMC47AT3G
1.5SMC51AT3G
1.5SMC56AT3G
1.5SMC62AT3G
47A
51A
56A
62A
40.2
43.6
47.8
53
5
5
5
5
44.7
48.5
53.2
58.9
47
51
56
62
49.4
53.6
58.8
65.1
1
1
1
1
64.8
70.1
77
85
23.2
21.4
19.5
17.7
0.101
0.102
0.103
0.104
1.5SMC68AT3G
1.5SMC75AT3G
1.5SMC82AT3G
1.5SMC91AT3G
68A
75A
82A
91A
58.1
64.1
70.1
77.8
5
5
5
5
64.6
71.3
77.9
86.5
68
75
82
91
71.4
78.8
86.1
95.5
1
1
1
1
92
103
113
125
16.3
14.6
13.3
12
0.104
0.105
0.105
0.106
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
6. A transient suppressor is normally selected according to the working peak reverse voltage (V
RWM
), which should be equal to or greater than
the DC or continuous peak operating voltage level.
7. V
BR
measured at pulse test current I
T
at an ambient temperature of 25°C.
8. Surge current waveform per Figure 2 and derate per Figure 3 of the General Data − 1500 Watt at the beginning of this group.
* Include SZ-prefix devices where applicable.
3
Publication Order Number:
1.5SMC6.8AT3/D
Specifications subject to change without notice. © 2016 Littelfuse, Inc.
September 19, 2016 − Rev. 11
P1-P3P4-P6P7-P7

1.5SMC43AT3G

Mfr. #:
Buy 1.5SMC43AT3G
Manufacturer:
Littelfuse
Description:
TVS Diodes - Transient Voltage Suppressors 43V 1500W Unidirectional
Lifecycle:
New from this manufacturer.
Delivery:
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