Transient Voltage Suppression Diodes
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 09/13/13
Surface Mount – 1500W > 1.5SMC series
TVS devices are ideal for the protection of I/O Interfaces,
VCC bus and other vulnerable circuits used in Telecom,
Computer, Industrial and Consumer electronic applications.
Applications
• For surface mounted
applications to optimize
board space
• Low prole 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
• VBR @TJ= VBR@25°C × (1+αT
x (TJ - 25))
(αT: Temperature Coefcient)
• 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 IR less than 1µA
above 13V
• High temperature
soldering guaranteed:
260°C/40 seconds at
terminals
• Plastic package has
underwriters laboratory
ammability 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
Features
The 1.5SMC series is designed specifically to protect
sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
Description
Parameter Symbol Value Unit
Peak Pulse Power Dissipation at
TA=25ºC by 10/1000µs Waveform
(Fig.2)(Note 1), (Note 2)
PPPM 1500 W
Power Dissipation on Infinite Heat
Sink at TA=50°C PM(AV) 6.5 W
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave (Note 3) IFSM 200 A
Maximum Instantaneous Forward
Voltage at 100A for Unidirectional
Only (Note 4)
VF3.5/5.0 V
Operating Junction and Storage
Temperature Range TJ, TSTG -55 to 150 °C
Typical Thermal Resistance Junction
to Lead RuJL 15 °C/W
Typical Thermal Resistance Junction
to Ambient RuJA 75 °C/W
Notes:
1. Non-repetitive current pulse , per Fig. 4 and derated above TA = 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. VF<3.5V for VBR _
<
200V and VF<5.0V for VBR _
>
201V.
Maximum Ratings and Thermal Characteristics
(TA=25°C unless otherwise noted)
Agency Approvals
AGENCY AGENCY FILE NUMBER
E230531
RoHS
1.5SMC Series
Uni-directional
Bi-directional
Functional Diagram
Bi-directional
Uni-directional
Cathode Anode
Additional Information
Datasheet Samples
Resources
Transient Voltage Suppression Diodes
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 09/13/13
Surface Mount – 1500W > 1.5SMC series
Electrical Characteristics.(TA=25°C unless otherwise noted)
Part
Number
(Uni)
Part
Number
(Bi)
Marking
Reverse
Stand off
Voltage
VR
(Volts)
Breakdown
Voltage VBR
(Volts) @ IT
Test
Current
IT
(mA)
Maximum
Clamping
Voltage VC
@ Ipp
(V)
Maximum
Peak
Pulse
Current Ipp
(A)
Maximum
Reverse
Leakage IR
@ VR
(µA)
Agency
Approval
UNI BI MIN MAX
1.5SMC6.8A 1.5SMC6.8CA 6V8A 6V8C 5.80 6.45 7. 1 4 10 10.5 144.8 1000 X
1.5SMC7.5A 1.5SMC7.5CA 7V5A 7V5C 6.40 7. 1 3 7.88 10 11. 3 134.5 500 X
1.5SMC8.2A 1.5SMC8.2CA 8V2A 8V2C 7.02 7.79 8.61 10 12.1 125.6 200 X
1.5SMC9.1A 1.5SMC9.1CA 9V1A 9V1C 7.78 8.65 9.50 1 13.4 113.4 50 X
1.5SMC10A 1.5SMC10CA 10A 10C 8.55 9.50 10.50 1 14.5 104.8 10 X
1.5SMC11A 1.5SMC11CA 11A 11C 9.40 10.50 11.60 115.6 97.4 5 X
1.5SMC12A 1.5SMC12CA 12A 12C 10.20 11.40 12.60 116.7 91.0 5 X
1.5SMC13A 1.5SMC13CA 13A 13C 11. 10 12.40 13.70 1 18.2 83.5 1 X
1.5SMC15A 1.5SMC15CA 15A 15C 12.80 14.30 15.80 1 21.2 71.7 1 X
1.5SMC16A 1.5SMC16CA 16A 16C 13.60 15.20 16.80 1 22.5 67.6 1 X
1.5SMC18A 1.5SMC18CA 18A 18C 15.30 1 7. 1 0 18.90 1 25.2 60.3 1 X
1.5SMC20A 1.5SMC20CA 20A 20C 1 7. 1 0 19.00 21.00 1 27.7 54.9 1 X
1.5SMC22A 1.5SMC22CA 22A 22C 18.80 20.90 23.10 1 30.6 49.7 1 X
1.5SMC24A 1.5SMC24CA 24A 24C 20.50 22.80 25.20 1 33.2 45.8 1 X
1.5SMC27A 1.5SMC27CA 27A 27C 23.10 25.70 28.40 1 37.5 40.5 1 X
1.5SMC30A 1.5SMC30CA 30A 30C 25.60 28.50 31.50 1 41.4 36.7 1 X
1.5SMC33A 1.5SMC33CA 33A 33C 28.20 31.40 34.70 1 45.7 33.3 1 X
1.5SMC36A 1.5SMC36CA 36A 36C 30.80 34.20 37.80 1 49.9 30.5 1 X
1.5SMC39A 1.5SMC39CA 39A 39C 33.30 37.10 41.00 1 53.9 28.2 1 X
1.5SMC43A 1.5SMC43CA 43A 43C 36.80 40.90 45.20 1 59.3 25.6 1 X
1.5SMC47A 1.5SMC47CA 47A 47C 40.20 44.70 49.40 1 64.8 23.5 1 X
1.5SMC51A 1.5SMC51CA 51A 51C 43.60 48.50 53.60 1 70.1 21.7 1 X
1.5SMC56A 1.5SMC56CA 56A 56C 47.80 53.20 58.80 1 77.0 19.7 1 X
1.5SMC62A 1.5SMC62CA 62A 62C 53.00 58.90 65.10 185.0 1 7. 9 1 X
1.5SMC68A 1.5SMC68CA 68A 68C 58.10 64.60 71.40 1 92.0 16.5 1 X
1.5SMC75A 1.5SMC75CA 75A 75C 64.10 71.30 78.80 1 103.0 14.8 1 X
1.5SMC82A 1.5SMC82CA 82A 82C 70.10 77.90 86.10 1 113.0 13.5 1 X
1.5SMC91A 1.5SMC91CA 91A 91C 77.80 86.50 95.50 1 125.0 12.2 1 X
1.5SMC100A 1.5SMC100CA 68A 100C 85.50 95.00 105.00 1 137.0 11. 1 1 X
1.5SMC110A 1.5SMC110CA 75A 110 C 94.00 105.00 116.00 1 152.0 10.0 1 X
1.5SMC120A 1.5SMC120CA 120A 120C 102.00 114.00 126.00 1165.0 9.2 1 X
1.5SMC130A 1.5SMC130CA 130A 130C 111.0 0 124.00 137.00 1 179.0 8.5 1 X
1.5SMC150A 1.5SMC150CA 150A 150C 128.00 143.00 158.00 1 207.0 7. 3 1 X
1.5SMC160A 1.5SMC160CA 160A 160C 136.00 152.00 168.00 1 219.0 6.9 1 X
1.5SMC170A 1.5SMC170CA 170A 170C 145.00 162.00 179.00 1 234.0 6.5 1 X
1.5SMC180A 1.5SMC180CA 180A 180C 154.00 171.00 189.00 1246.0 6.2 1 X
1.5SMC200A 1.5SMC200CA 200A 200C 171.00 190.00 210.00 1 274.0 5.5 1 X
1.5SMC220A 1.5SMC220CA 220A 220C 185.00 209.00 231.00 1 328.0 4.6 1 X
1.5SMC250A 1.5SMC250CA 250A 250C 214.00 237.00 263.00 1 344.0 4.4 1 X
1.5SMC300A 1.5SMC300CA 300A 300C 256.00 285.00 315.00 1 414.0 3.7 1 X
1.5SMC350A 1.5SMC350CA 350A 350C 300.00 332.00 368.00 1482.0 3.2 1 X
1.5SMC400A 1.5SMC400CA 400A 400C 342.00 380.00 420.00 1 548.0 2.8 1 X
1.5SMC440A 1.5SMC440CA 440A 440C 376.00 418.00 462.00 1602.0 2.5 1 X
1.5SMC480A 1.5SMC480CA 480A 480C 408.00 456.00 504.00 1 658.0 2.3 1 X
1.5SMC510A 1.5SMC510CA 510A 510C 434.00 485.00 535.00 1 698.0 2.1 1 X
1.5SMC530A 1.5SMC530CA 530A 530C 477.00 503.50 556.50 1 725.0 2.1 1 X
1.5SMC540A 1.5SMC540CA 540A 540C 486.00 513.00 567.00 1 740.0 2.0 1 X
1.5SMC550A 1.5SMC550CA 550A 550C 495.00 522.50 577.50 1 760.0 2.0 1 X
For bidirectional type having VR of 10 volts and less, the IR limit is double.
For parts without A , the VBR is ± 10% and Vc is 5% higher than with A parts.
Transient Voltage Suppression Diodes
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 09/13/13
Surface Mount – 1500W > 1.5SMC series
I-V Curve Characteristics
Voltage Transients
Time
Voltage Across TVS
Current Through TVS
Voltage or Current
Figure 1 - TVS Transients Clamping Waveform
Ratings and Characteristic Curves (TA=25°C unless otherwise noted)
Figure 2 - Peak Pulse Power Rating
1
10
100
0.0000010.00001 0.0001 0.001
td-Pulse Width (sec.)
PPPM-Peak Pulse Power (kW)
0.
31x0.31" (8.0x8.0mm)
Copper Pad Area
Vc VBR VR
IR
IT
Ipp
V
Uni-directional
VF
Vc VBR VR
IR
IT
Ipp
V
Vc
VBR
VR
Ipp
IR
IT
Bi-directional
PPPM Peak Pulse Power Dissipation -- Max power dissipation
VR Stand-off Voltage -- Maximum voltage that can be applied to the TVS without operation
VBR Breakdown Voltage -- Maximum current that ows though the TVS at a specied test current (IT)
VC Clamping Voltage -- Peak voltage measured across the suppressor at a specified Ippm (peak impulse current)
IR Reverse Leakage Current -- Current measured at VR
VF Forward Voltage Drop for Uni-directional
continues on next page.
Transient Voltage Suppression Diodes
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 09/13/13
Surface Mount – 1500W > 1.5SMC series
IPPM- Peak Pulse Current, % IRSM
0
0
50
100
150
1.0 2.0 3.0 4.0
tr=10µsec
Peak Value
IPPM
IPPM
2
TJ=25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of IPPM
10/1000µsec. Waveform
as defined by R.E.A
td
t-Time (ms)
Half Value
IPPM ( )
1
10
100
1000
10000
100000
1.010.0100.01000.0
Cj (pF)
Tj=25C
f=
1.0MHz
Vs
ig=50mVp-p
Uni-directional V=0V
Bi-directional V=0V
VBR - Reverse Breakdown Voltage (V)
Uni-directional @VR
Bi-directional @VR
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
0255075100 125 150 175
PM(AV), Steady Sate Power
Dissipation (W)
TA - Ambient Temperature (ºC)
Figure 3 - Pulse Derating Curve Figure 4 - Pulse Waveform
Figure 5 - Typical Junction Capacitance Figure 6 - Steady State Power Dissipation Derating
Curve
0
20
40
60
80
100
120
140
160
180
200
11
01
00
Nu
mber of Cycles at 60 Hz
IFSM - Peak Forward Surge Current (A)
Figure 7 - Maximum Non-Repetitive Peak Forward
Surge Current Uni-Directional Only
Ratings and Characteristic Curves (TA=25°C unless otherwise noted) (Continued)
Peak Pulse Power (PPP) or Current (IPP)
Derating in Percentage %
TA - Ambient Temperature (ºC)
0 25 50 75 100 125 150 175 200
100
75
50
25
0
Transient Voltage Suppression Diodes
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 09/13/13
Surface Mount – 1500W > 1.5SMC series
Physical Specifications
Weight 0.007 ounce, 0.21 grams
Case JEDEC DO214AB. Molded plastic body
over glass passivated junction
Polarity Color band denotes positive end
(cathode) except Bidirectional.
Terminal Matte Tin-plated leads, Solderable per
JESD22-B102D
Dimensions
Soldering Parameters
Temperature (T)
Time (t)
Ts(min)
Ts(max)
TL
TP
ts
Preheat
tL
tp
Ramp-up Critical Zone
TL to TP
Ramp-down
t 25˚C to Peak
25˚C
Dimensions Inches Millimeters
Min Max Min Max
A 0.114 0.126 2.900 3.200
B0.260 0.280 6.600 7. 11 0
C 0.220 0.245 5.590 6.220
D 0.079 0.103 2.060 2.620
E 0.030 0.060 0.760 1.520
F - 0.008 - 0.203
G 0.305 0.320 7.750 8.130
H0.006 0.012 0.152 0.305
I 0.129 - 3.300 -
J 0.094 - 2.400 -
K - 0.165 - 4.200
L 0.094 - 2.400 -
DO-214AB (SMC J-Bend)
Dimensions in inches and (millimeters)
Cathode Band
B
F
G
H
E
C
D
A
(for uni-directional products only)
(all dimensions in mm)
I
L
K
J
Solder Pads
Reflow Condition Lead–free assembly
Pre Heat
- Temperature Min (Ts(min))150°C
- Temperature Max (Ts(max))200°C
- Time (min to max) (ts)60 – 180 secs
Average ramp up rate (Liquidus Temp
(TL) to peak 3°C/second max
TS(max) to TL - Ramp-up Rate 3°C/second max
Reflow - Temperature (TL) (Liquidus) 217°C
- Time (min to max) (ts)60 – 150 seconds
Peak Temperature (TP)260+0/-5 °C
Time within 5°C of actual peak
Temperature (tp)20 – 40 seconds
Ramp-down Rate 6°C/second max
Time 25°C to peak Temperature (TP)8 minutes Max.
Do not exceed 280°C Environmental Specifications
High Temp. Storage JESD22-A103
HTRB JESD22-A108
Thermal Shock JESD22-A106
MSL JEDEC-J-STD-020C, Level 1
H3TRB JESD22-A101
RSH JESD22-B106C
Transient Voltage Suppression Diodes
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 09/13/13
Surface Mount – 1500W > 1.5SMC series
Part Numbering System
Packaging
Part number Component Package Quantity Packaging Option Packaging Specification
1.5SMCxxxXX DO-214AB 3000 Tape & Reel – 16mm/13” tape EIA STD RS-481
V
BR
VOLTAGE
BI-DIRECTIONAL
5%
V
BR
VOLTAGE TOLERANCE
SERIES
1.5SMC XXX CA
Part Marking System
Tape and Reel Specification
Cathode
0.63
(16.0)
0.315
(8.0)
0.157
(4.0)
0.65
(16.4)
0.80 (20.2)
Arbor Hole Dia.
13.0 (330)
Dimensions are in inches
(and millimeters).
Direction of Feed
0.059 DIA
(1.5) Cover tape
F
XXX
YMXXX
Marking Code
Trace Code Marking
Y:Year Code
M: Month Code
XXX: Lot Code
Littelfuse Logo
Cathode Band
(for uni-directional products only)