Surface Mount – 1500W > 1.5SMC series
Transient Voltage Suppression Diodes
1.5SMC Series
Uni-directional
Bi-directional
Description
RoHS
The 1.5SMC series is designed specifically to protect
sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
Features
• For surface mounted
applications to optimize
board space
• Low profile package.
• Typical failure mode is
short from over-specified
voltage or current
• Whisker test is conducted
based on JEDEC
JESD201A per its table 4a
and 4c
• IEC-61000-4-2 ESD
15kV(Air), 8kV (Contact)
• ESD protection of data
lines in accordance with
IEC 61000-4-2 (IEC801-2)
• EFT protection of data
lines in accordance with
IEC 61000-4-4 (IEC801-4)
• Built-in strain relief
•
V
BR
@T
J
= V
BR
@25°C × (1+
α
T
x (T
J
- 25))
(αT: Temperature Coefficient)
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E230531
Maximum Ratings and Thermal Characteristics
(T
A
=25°C unless otherwise noted)
Parameter
Peak Pulse Power Dissipation at
T
A
=25ºC by 10/1000µs Waveform
(Fig.2)(Note 1), (Note 2)
Power Dissipation on Infinite Heat
Sink at T
A
=50°C
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave (Note 3)
Maximum Instantaneous Forward
Voltage at 100A for Unidirectional
Only (Note 4)
Operating Junction and Storage
Temperature Range
Typical Thermal Resistance Junction
to Lead
Typical Thermal Resistance Junction
to Ambient
Symbol
P
PPM
P
M(AV)
I
FSM
V
F
T
J
, T
STG
R
uJL
R
uJA
Value
1500
6.5
200
3.5/5.0
-55 to 150
15
75
Unit
W
W
A
V
°C
°C/W
°C/W
• Glass passivated chip
junction
• 1500W peak pulse power
capability at 10/1000μs
waveform, repetition rate
(duty cycles):0.01%
• Fast response time:
typically less than 1.0ps
from 0V to BV min
• Excellent clamping
capability
• Low incremental surge
resistance
• Typical I
R
less than 1µA
above 13V
• High temperature
soldering guaranteed:
260°C/40 seconds at
terminals
• Plastic package has
underwriters laboratory
flammability 94V-O
• Meet MSL level1, per
J-STD-020, LF maximum
peak of 260°C
• Matte tin lead–free plated
• Halogen free and RoHS
compliant
Applications
TVS devices are ideal for the protection of I/O Interfaces,
V
CC
bus and other vulnerable circuits used in Telecom,
Computer, Industrial and Consumer electronic applications.
Notes:
1. Non-repetitive current pulse , per Fig. 4 and derated above T
A
= 25°C per Fig. 3.
2. Mounted on copper pad area of 0.31x0.31” (8.0 × 8.0mm) to each terminal.
3. Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional
device only, duty cycle=4 per minute maximum.
4. V
F
<3.5V for V
BR
<
200V and V
F
<5.0V for V
BR
>
201V.
_
_
Functional Diagram
Additional Information
Bi-directional
Datasheet
Resources
Samples
Cathode
Uni-directional
Anode
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/01/14
Transient Voltage Suppression Diodes
Surface Mount – 1500W > 1.5SMC series
Electrical Characteristics
(T
A
=25°C unless otherwise noted)
Part
Number
(Uni)
1.5SMC6.8A
1.5SMC7
.5A
1.5SMC8.2A
1.5SMC9.1A
1.5SMC10A
1.5SMC11A
1.5SMC12A
1.5SMC13A
1.5SMC15A
1.5SMC16A
1.5SMC18A
1.5SMC20A
1.5SMC22A
1.5SMC24A
1.5SMC27A
1.5SMC30A
1.5SMC33A
1.5SMC36A
1.5SMC39A
1.5SMC43A
1.5SMC47A
1.5SMC51A
1.5SMC56A
1.5SMC62A
1.5SMC68A
1.5SMC75A
1.5SMC82A
1.5SMC91A
1.5SMC100A
1.5SMC110A
1.5SMC120A
1.5SMC130A
1.5SMC150A
1.5SMC160A
1.5SMC170A
1.5SMC180A
1.5SMC200A
1.5SMC220A
1.5SMC250A
1.5SMC300A
1.5SMC350A
1.5SMC400A
1.5SMC440A
1.5SMC480A
1.5SMC510A
1.5SMC530A
1.5SMC540A
1.5SMC550A
Part
Number
(Bi)
1.5SMC6.8CA
1.5SMC7
.5CA
1.5SMC8.2CA
1.5SMC9.1CA
1.5SMC10CA
1.5SMC11CA
1.5SMC12CA
1.5SMC13CA
1.5SMC15CA
1.5SMC16CA
1.5SMC18CA
1.5SMC20CA
1.5SMC22CA
1.5SMC24CA
1.5SMC27CA
1.5SMC30CA
1.5SMC33CA
1.5SMC36CA
1.5SMC39CA
1.5SMC43CA
1.5SMC47CA
1.5SMC51CA
1.5SMC56CA
1.5SMC62CA
1.5SMC68CA
1.5SMC75CA
1.5SMC82CA
1.5SMC91CA
1.5SMC100CA
1.5SMC110CA
1.5SMC120CA
1.5SMC130CA
1.5SMC150CA
1.5SMC160CA
1.5SMC170CA
1.5SMC180CA
1.5SMC200CA
1.5SMC220CA
1.5SMC250CA
1.5SMC300CA
1.5SMC350CA
1.5SMC400CA
1.5SMC440CA
1.5SMC480CA
1.5SMC510CA
1.5SMC530CA
1.5SMC540CA
1.5SMC550CA
Marking
UNI
6V8A
7V5A
8V2A
9V1A
10A
11A
12A
13A
15A
16A
18A
20A
22A
24A
27A
30A
33A
36A
39A
43A
47A
51A
56A
62A
68A
75A
82A
91A
100A
110A
120A
130A
150A
160A
170A
180A
200A
220A
250A
300A
350A
400A
440A
480A
510A
530A
540A
550A
BI
6V8C
7V5C
8V2C
9V1C
10C
11C
12C
13C
15C
16C
18C
20C
22C
24C
27C
30C
33C
36C
39C
43C
47C
51C
56C
62C
68C
75C
82C
91C
100C
110C
120C
130C
150C
160C
170C
180C
200C
220C
250C
300C
350C
400C
440C
480C
510C
530C
540C
550C
Reverse
Stand off
Voltage
V
R
(Volts)
5.80
6.40
7
.02
7
.78
8.55
9.40
10.20
11.10
12.80
13.60
15.30
17
.10
18.80
20.50
23.10
25.60
28.20
30.80
33.30
36.80
40.20
43.60
47
.80
53.00
58.10
64.10
70.10
77
.80
85.50
94.00
102.00
111.00
128.00
136.00
145.00
154.00
171.00
185.00
214.00
256.00
300.00
342.00
376.00
408.00
434.00
477
.00
486.00
495.00
Breakdown
Voltage V
BR
(Volts) @ I
T
MIN
6.45
7
.13
7
.79
8.65
9.50
10.50
11.40
12.40
14.30
15.20
17
.10
19.00
20.90
22.80
25.70
28.50
31.40
34.20
37
.10
40.90
44.70
48.50
53.20
58.90
64.60
71.30
77
.90
86.50
95.00
105.00
114.00
124.00
143.00
152.00
162.00
171.00
190.00
209.00
237
.00
285.00
332.00
380.00
418.00
456.00
485.00
503.50
513.00
522.50
MAX
7
.14
7
.88
8.61
9.50
10.50
11.60
12.60
13.70
15.80
16.80
18.90
21.00
23.10
25.20
28.40
31.50
34.70
37
.80
41.00
45.20
49.40
53.60
58.80
65.10
71.40
78.80
86.10
95.50
105.00
116.00
126.00
137
.00
158.00
168.00
179.00
189.00
210.00
231.00
263.00
315.00
368.00
420.00
462.00
504.00
535.00
556.50
567
.00
577
.50
Test
Current
I
T
(mA)
10
10
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Maximum Maximum Maximum
Agency
Clamping
Peak
Reverse
Approval
Voltage V
C
Pulse
Leakage I
R
@ I
pp
Current I
pp
@ V
R
(V)
(A)
(µA)
10.5
11.3
12.1
13.4
14.5
15.6
16.7
18.2
21.2
22.5
25.2
27
.7
30.6
33.2
37
.5
41.4
45.7
49.9
53.9
59.3
64.8
70.1
77
.0
85.0
92.0
103.0
113.0
125.0
137
.0
152.0
165.0
179.0
207
.0
219.0
234.0
246.0
274.0
328.0
344.0
414.0
482.0
548.0
602.0
658.0
698.0
725.0
740.0
760.0
144.8
134.5
125.6
113.4
104.8
97
.4
91.0
83.5
71.7
67
.6
60.3
54.9
49.7
45.8
40.5
36.7
33.3
30.5
28.2
25.6
23.5
21.7
19.7
17
.9
16.5
14.8
13.5
12.2
11.1
10.0
9.2
8.5
7
.3
6.9
6.5
6.2
5.5
4.6
4.4
3.7
3.2
2.8
2.5
2.3
2.1
2.1
2.0
2.0
1000
500
200
50
10
5
5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
For bidirectional type having V
R
of 10 volts and less, the I
R
limit is double.
For parts without A , the V
BR
is ± 10% and Vc is 5% higher than with A parts.
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/01/14
Surface Mount – 1500W > 1.5SMC series
Transient Voltage Suppression Diodes
I-V Curve Characteristics
Uni-directional
Bi-directional
I
pp
Vc V
BR
V
R
I
R
V
F
I
T
V
Vc V
BR
V
R
I
T
I
R
I
R
I
T
V
R
V
BR
Vc
V
I
pp
I
pp
P
PPM
V
R
V
BR
V
C
I
R
V
F
Peak Pulse Power Dissipation
-- Max power dissipation
Stand-off Voltage
-- Maximum voltage that can be applied to the TVS without operation
Breakdown Voltage
-- Maximum voltage that flows though the TVS at a specified test current (I
T
)
Clamping Voltage
-- Peak voltage measured across the suppressor at a specified Ippm (peak impulse current)
Reverse Leakage Current
-- Current measured at V
R
Forward Voltage Drop for Uni-directional
Ratings and Characteristic Curves
(T
A
=25°C unless otherwise noted)
Figure 1 - TVS Transients Clamping Waveform
Voltage Transients
Figure 2 - Peak Pulse Power Rating
100
P
PPM
-Peak Pulse Power (kW)
Voltage Across TVS
Voltage or Current
Current Through TVS
10
1
0.000001
Time
0.31x0.31" (8.0x8.0mm)
Copper Pad Area
0.00001
0.0001
0.001
t
d
-Pulse Width (sec.)
continues on next page.
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/01/14
Transient Voltage Suppression Diodes
Surface Mount – 1500W > 1.5SMC series
Ratings and Characteristic Curves
(T
A
=25°C unless otherwise noted)
(Continued)
Figure 3 - Pulse Derating Curve
100
Peak Pulse Power (P
PP
) or Current (I
PP
)
Derating in Percentage %
Figure 4 - Pulse Waveform
150
I
PPM
- Peak Pulse Current, % I
RSM
tr=10µsec
Peak Value
IPPM
TJ=25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of IPPM
80
60
40
20
0
100
Half Value
IPPM
IPPM
2
( )
10/1000µsec. Waveform
as defined by R.E.A
50
0
25
50
75
100
125
150
175
0
td
0
1.0
2.0
t-Time (ms)
3.0
4.0
T
A
-Ambient temperature (ºC)
Figure 5 - Typical Junction Capacitance
Figure 6 - Steady State Power Dissipation Derating
Curve
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
100000
10000
1000
100
Bi-directional @V
R
Uni-directional V=0V
Cj (pF)
Uni-directional @V
R
10
1
1.0
Tj=25C
f=1.0MHz
Vsig=50mVp-p
P
M(AV)
, Steady Sate Power
Dissipation (W)
Bi-directional V=0V
10.0
100.0
1000.0
V
BR
- Reverse Breakdown Voltage (V)
0
25
50
75
100
125
150
175
T
A
- Ambient Temperature (ºC)
Figure 7 - Maximum Non-Repetitive Peak Forward
Surge Current Uni-Directional Only
200
I
FSM
- Peak Forward Surge Current (A)
180
160
140
120
100
80
60
40
20
0
1
10
Number of Cycles at 60 Hz
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/01/14
100
Surface Mount – 1500W > 1.5SMC series
Transient Voltage Suppression Diodes
Soldering Parameters
Reflow Condition
- Temperature Min (T
s(min)
)
Pre Heat
- Temperature Max (T
s(max)
)
- Time (min to max) (t
s
)
Average ramp up rate (Liquidus Temp
(T
L
) to peak
T
S(max)
to T
L
- Ramp-up Rate
Reflow
- Temperature (T
L
) (Liquidus)
- Time (min to max) (t
s
)
Lead–free assembly
150°C
200°C
60 – 180 secs
3°C/second max
3°C/second max
217°C
60 – 150 seconds
260
+0/-5
°C
20 – 40 seconds
6°C/second max
8 minutes Max.
280°C
Temperature (T)
T
P
Ramp-up
t
p
Critical Zone
T
L
to T
P
T
L
T
s(max)
t
L
T
s(min)
Ramp-down
Preheat
t
s
25˚C
t 25˚C to Peak
Peak Temperature (T
P
)
Time within 5°C of actual peak
Temperature (t
p
)
Ramp-down Rate
Time 25°C to peak Temperature (T
P
)
Do not exceed
Time (t)
Environmental Specifications
High Temp. Storage
JESD22-A103
JESD22-A108
JESD22-A104
JEDEC-J-STD-020, Level 1
JESD22-A101
JESD22-B106
Physical Specifications
Weight
Case
Polarity
Terminal
0.007 ounce, 0.21 grams
JEDEC DO214AB. Molded plastic body
over glass passivated junction
Color band denotes positive end
(cathode) except Bidirectional.
Matte Tin-plated leads, Solderable per
JESD22-B102
HTRB
Temperature Cycling
MSL
H3TRB
RSH
Dimensions
DO-214AB (SMC J-Bend)
(for uni-directional products only)
Cathode Band
Dimensions
A
Inches
Min
0.114
0.260
0.220
0.079
0.030
-
0.305
0.006
0.129
0.094
-
0.094
Max
0.126
0.280
0.245
0.103
0.060
0.008
0.320
0.012
-
-
0.165
-
Millimeters
Min
2.900
6.600
5.590
2.060
0.760
-
7
.750
0.152
3.300
2.400
-
2.400
Max
3.200
7
.110
6.220
2.620
1.520
0.203
8.130
0.305
-
-
4.200
-
A
B
H
D
F
G
J
K
L
C
B
C
D
E
F
G
H
I
J
K
L
E
Dimensions in inches and (millimeters)
I
Solder Pads
(all dimensions in mm)
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/01/14
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