© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/03/20
Surface Mount – 600W > SMBJ series
TVS Diodes
Description
Agency Approvals
The SMBJ series is designed specifically to protect
sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
Features
• Excellent clamping
capability
• Low incremental surge
resistance
• Typical IR less than 1μA
when VBR min>12V
• 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
30kV(Air), 30kV (Contact)
• ESD protection of data
lines in accordance with
IEC 61000-4-2
• EFT protection of data
lines in accordance with
IEC 61000-4-4
• Built-in strain relief
• Fast response time:
typically less than 1.0ps
from 0V to VBR min
• 600W peak pulse power
capability at 10/1000μs
waveform, repetition rate
(duty cycles):0.01%
• High temperature to reflow
soldering guaranteed:
260°C/30sec
• VBR @ TJ= VBR@25°C
x (1+αT x (TJ - 25))
(αT:Temperature
Coefficient, typical value is
0.1%)
• UL Recognized compound
meeting flammability
classification V-0
• Meet MSL level1, per
J-STD-020, LF maximun
peak of 260°C
• Matte tin lead–free plated
• Halogen free and RoHS
compliant
• Pb-free E3 means 2nd
level interconnect is Pb-
free and the terminal finish
material is tin(Sn) (IPC/
JEDEC J-STD-609A.01)
• UL Recognized to ANSI/
UL 497B: Protectors for
Data Communications and
Fire-Alarm Circuits.
Applications
TVS components are ideal for the protection of I/O
Interfaces, VCC bus and other vulnerable circuits used in
Telecom, Computer, Industrial and Consumer electronic
applications.
Maximum Ratings and Thermal Characteristics
(TA=25OC unless otherwise noted)
Parameter Symbol Value Unit
Peak Pulse Power Dissipation(Fig.2)
by 10/1000us Test Waveform(Fig.4) (Note 1),(Note
2)-Single Die Parts PPPM 600 W
Peak Pulse Power Dissipation(Fig.2)
by 10/1000us Test Waveform(Fig.4) (Note 1),
(Note 2)-Stacked Die Parts (Note 5) PPPM 800 W
Power Dissipation on Infinite Heat Sink at
TL=50OCPD5.0 W
Peak Forward Surge Current, 8.3ms Single Half
Sine Wave (Note 3) IFSM 100 A
Maximum Instantaneous Forward Voltage at 50A
for Unidirectional Only (Note 4) VF3.5/5.0 V
Operating Temperature Range TJ-65 to 150 °C
Storage Temperature Range TSTG -65 to 175 °C
Typical Thermal Resistance Junction to Lead RƟJL 20 °C/W
Typical Thermal Resistance Junction to Ambient RƟJA 100 °C/W
Agency Agency File Number
E230531
SMBJ Series
Bi-directional
Uni-directional
Functional Diagram
Bi-directional
Uni-directional
Cathode Anode
RoHS
Pb
e3
Notes:
1. Non-repetitive current pulse , per Fig. 4 and derated above TJ (initial) =25OC per Fig. 3.
2. Mounted on copper pad area of 0.2x0.2” (5.0 x 5.0mm) 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 single die parts and VF< 5.0V for stacked-die parts.
5. For stacked die component details, please refer to part numbers labeled by * in Electrical Characteristics.
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/03/20
Surface Mount – 600W > SMBJ series
TVS Diodes
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)
Maximum
Temperature
coefficient of
VBR (%/C)
Agency
Approval
UNI BI MIN MAX
SMBJ5.0A SMBJ5.0CA KE AE 5.0 6.40 7. 0 0 10 9.2 65.3 800 0.041 X
SMBJ6.0A SMBJ6.0CA KG AG 6.0 6.67 7.37 10 10.3 58.3 800 0.046 X
SMBJ6.5A SMBJ6.5CA KK AK 6.5 7.22 7.98 10 11. 2 53.6 500 0.052 X
SMBJ7.0A SMBJ7.0CA KM AM 7. 0 7.78 8.60 10 12.0 50.0 200 0.058 X
SMBJ7.5A SMBJ7.5CA KP AP 7. 5 8.33 9.21 1 12.9 46.6 100 0.061 X
SMBJ8.0A SMBJ8.0CA KR AR 8.0 8.89 9.83 1 13.6 44.2 50 0.064 X
SMBJ8.5A SMBJ8.5CA KT AT 8.5 9.44 10.40 1 14.4 41.7 20 0.066 X
SMBJ9.0A SMBJ9.0CA KV AV 9.0 10.00 11.10 1 15.4 39.0 10 0.069 X
SMBJ10A SMBJ10CA KX AX 10.0 11. 10 12.30 1 17. 0 35.3 5 0.071 X
SMBJ11A SMBJ11CA KZ AZ 11. 0 12.20 13.50 1 18.2 33.0 1 0.074 X
SMBJ12A SMBJ12CA LE BE 12.0 13.30 14.70 1 19.9 30.2 1 0.075 X
SMBJ13A SMBJ13CA LG BG 13.0 14.40 15.90 1 21.5 28.0 1 0.076 X
SMBJ14A SMBJ14CA LK BK 14.0 15.60 17.20 1 23.2 25.9 1 0.080 X
SMBJ15A SMBJ15CA LM BM 15.0 16.70 18.50 1 24.4 24.6 1 0.083 X
SMBJ16A SMBJ16CA LP BP 16.0 17.80 19.70 1 26.0 23.1 1 0.084 X
SMBJ17A SMBJ17CA LR BR 17. 0 18.90 20.90 1 27.6 21.8 1 0.085 X
SMBJ18A SMBJ18CA LT BT 18.0 20.00 22.10 1 29.2 20.6 1 0.088 X
SMBJ20A SMBJ20CA LV BV 20.0 22.20 24.50 1 32.4 18.6 1 0.091 X
SMBJ22A SMBJ22CA LX BX 22.0 24.40 26.90 1 35.5 16.9 1 0.092 X
SMBJ24A SMBJ24CA LZ BZ 24.0 26.70 29.50 1 38.9 15.5 1 0.092 X
SMBJ26A SMBJ26CA ME CE 26.0 28.90 31.90 1 42.1 14.3 1 0.093 X
SMBJ28A SMBJ28CA MG CG 28.0 31.10 34.40 1 45.4 13.3 1 0.094 X
SMBJ30A SMBJ30CA MK CK 30.0 33.30 36.80 1 48.4 12.4 1 0.096 X
SMBJ33A SMBJ33CA MM CM 33.0 36.70 40.60 1 53.3 11. 3 1 0.097 X
SMBJ36A SMBJ36CA MP CP 36.0 40.00 44.20 1 58.1 10.4 1 0.098 X
SMBJ40A SMBJ40CA MR CR 40.0 44.40 49.10 1 64.5 9.3 1 0.099 X
SMBJ43A SMBJ43CA MT CT 43.0 47.80 52.80 1 69.4 8.7 1 0.100 X
SMBJ45A SMBJ45CA MV CV 45.0 50.00 55.30 1 72.7 8.3 1 0.101 X
SMBJ48A SMBJ48CA MX CX 48.0 53.30 58.90 1 77.4 7. 8 1 0.101 X
SMBJ51A SMBJ51CA MZ CZ 51.0 56.70 62.70 1 82.4 7. 3 1 0.101 X
SMBJ54A SMBJ54CA NE DE 54.0 60.00 66.30 1 87.1 6.9 1 0.102 X
SMBJ58A SMBJ58CA NG DG 58.0 64.40 71.20 1 93.6 6.5 1 0.103 X
SMBJ60A SMBJ60CA NK DK 60.0 66.70 73.70 1 96.8 6.2 1 0.103 X
SMBJ64A SMBJ64CA NM DM 64.0 71.10 78.60 1 103.0 5.9 1 0.104 X
SMBJ70A SMBJ70CA NP DP 70.0 77.80 86.00 1 113.0 5.3 1 0.105 X
SMBJ75A SMBJ75CA NR DR 75.0 83.30 92.10 1 121.0 5.0 1 0.106 X
SMBJ78A SMBJ78CA NT DT 78.0 86.70 95.80 1 126.0 4.8 1 0.106 X
SMBJ85A SMBJ85CA NV DV 85.0 94.40 104.00 1 137.0 4.4 1 0.106 X
SMBJ90A SMBJ90CA NX DX 90.0 100.00 111.00 1 146.0 4.1 1 0.107 X
SMBJ100A SMBJ100CA NZ DZ 100.0 111.0 0 123.00 1 162.0 3.7 1 0.107 X
SMBJ110A SMBJ110CA PE EE 110.0 122.00 135.00 1 177.0 3.4 1 0.107 X
SMBJ120A SMBJ120CA PG EG 120.0 133.00 147.00 1 193.0 3.1 1 0.108 X
SMBJ130A SMBJ130CA PK EK 130.0 144.00 159.00 1 209.0 2.9 1 0.108 X
SMBJ150A SMBJ150CA PM EM 150.0 167.00 185.00 1 243.0 2.5 1 0.108 X
SMBJ160A SMBJ160CA PP EP 160.0 178.00 197.00 1 259.0 2.3 1 0.108 X
SMBJ170A SMBJ170CA PR ER 170.0 189.00 209.00 1 275.0 2.2 1 0.108 X
SMBJ180A SMBJ180CA PT ET 180.0 201.00 222.00 1 292.0 2.1 1 0.108 X
SMBJ188A SMBJ188CA PB EB 188.0 209.00 231.00 1 304.0 2.0 1 0.110 X
SMBJ200A SMBJ200CA PV EV 200.0 224.00 247.00 1 324.0 1.9 1 0.110 X
SMBJ220A SMBJ220CA PX EX 220.0 246.00 272.00 1 356.0 1. 7 1 0.110 X
SMBJ250A SMBJ250CA PZ EZ 250.0 279.00 309.00 1 405.0 1.5 1 0.110 X
SMBJ300A* SMBJ300CA* QE FE 300.0 335.00 371.00 1 486.0 1.7 1 0.112 X
SMBJ350A* SMBJ350CA* QG FG 350.0 391.00 432.00 1 567.0 1.5 1 0.112 X
SMBJ400A* SMBJ400CA* QK FK 400.0 447.00 494.00 1 648.0 1.3 1 0.112 X
SMBJ440A* SMBJ440CA* QM FM 440.0 492.00 543.00 1 713.0 1.1 1 0.112 X
Notes:
For bidirectional type having VR of 10 volts and less, the IR limit is double.
For stack-die parts, use * to label the part number.
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/03/20
Surface Mount – 600W > SMBJ series
TVS Diodes
Voltage Transients
Time
Voltage Across TVS
Current Through TVS
Voltage or Current
I-V Curve Characteristics
Ratings and Characteristic Curves (TA=25°C unless otherwise noted)
t
d
-Pulse Width (ms)
PPPM-Peak Pulse Power (kW)
0.1
1
10
100
0.001 0.01 0.1110
stacked-die, 800W
at 10/1000
µs, 25°C
Single die,600W
at 10/1000
µs, 25°C
TJ initial = Tamb
Figure 2 - Peak Pulse Power RatingFigure 1 - TVS Transients Clamping Waveform
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 voltage that flows though the TVS at a specified test current (IT)
VC Clamping Voltage -- Peak voltage measured across the TVS at a specified Ippm (peak impulse current)
IR Reverse Leakage Current -- Current measured at VR
VF Forward Voltage Drop for Uni-directional
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/03/20
Surface Mount – 600W > SMBJ series
TVS Diodes
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 ( )
Uni-direconal
Bi-direconal
V=
VR
Uni-direconal V=0V
Bi-direconal V=0V
1.00
10.00
100.00
1000.00
10000.00
1.00 10.00 100.00 1000.00
Cj(pf)
V
BR
—Reverse Breakdown Voltage(V)
0.1
1
10
100
1000
0.001
0.01 0.11 10 100 1000
Transient Thermal Impedance (°C/W)
T -Pulse Duration (s)
P
Figure 3 - Peak Pulse Power Derating Curve Figure 4 - Pulse Waveform
Figure 5 - Typical Junction Capacitance Figure 6 - Typical Transient Thermal Impedance
0
20
40
60
80
100
120
110100
Number of Cycles at 60 Hz
I
FSM
- 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)
0
20
40
60
80
100
0255075100 125 175
Peak Pulse Power (PPP) or Current (IPP)
Derating in Percentage %
150
TJ - Initial Junction Temperature (ºC)
0.1
1.0
10.0
100.0
0.01.0 2.03.0 4.05.0 6.07.0 8.09.0
I
F
-
Peak Forward Current(A)
V
F-
Peak Forward Voltage(V)
Stacked-die
Single die
Figure 8 - Peak Forward Voltage Drop vs Peak Forward
Current (Typical Values)
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/03/20
Surface Mount – 600W > SMBJ series
TVS Diodes
Physical Specifications
Weight 0.003 ounce, 0.093 grams
Case JEDEC DO214AA. Molded plastic body over glass
passivated junction
Polarity Color band denotes cathode except Bidirectional
Terminal Matte Tin-plated leads, Solderable per JESD22-B102
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
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 – 120 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) (tL)60 – 150 seconds
Peak Temperature (TP)260+0/-5 °C
Time within 5°C of actual peak Temperature (tp)30 seconds max
Ramp-down Rate 6°C/second max
Time 25°C to peak Temperature (TP)8 minutes Max.
Do not exceed 260°C
Dimensions
Dimensions Inches Millimeters
Min Max Min Max
A0.076 0.086 1.930 2.200
B0.160 0.187 4.060 4.750
C0.130 0.155 3.300 3.940
D0.078 0.103 1.990 2.610
E0.030 0.060 0.760 1.520
F- 0.008 - 0.203
G0.205 0.220 5.210 5.590
H0.006 0.012 0.152 0.305
I0.089 - 2.260 -
J0.085 - 2.160 -
K- 0.107 - 2.740
L0.085 - 2.160 -
(all dimensions in mm)
I
L
K
J
Solder Pads
Environmental Specifications
High Temp. Storage JESD22-A103
HTRB JESD22-A108
Temperature Cycling JESD22-A104
MSL JEDEC-J-STD-020, Level 1
H3TRB JESD22-A101
RSH JESD22-A111
A
D
EG
F
H
C
B
Cathode Band
(for Uni-directional products only)
DO-214AA (SMB J-Bend)
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/03/20
Surface Mount – 600W > SMBJ series
TVS Diodes
Part Numbering System
VR
Voltage
Bi-Directional
5%
VBR
Voltage T
Packaging
Part number Component Package Quantity Packaging Option Packaging Specification
SMBJxxxXX DO-214AA 3000 Tape & Reel - 12mm tape/13” reel EIA STD RS-481
Part Marking System
Tape and Reel Specification
0.47
(12.0)
0.315
(8.0)
0.157
(4.0)
0.49
(12.5)
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
Cathode
F
XX
YMXXX
Marking Code
Trace Code Marking
Y:Year Code
M: Month Code
XXX: Lot Code
Littelfuse Logo
Cathode Band
(for uni-directional products only)
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are
not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics.