TVS Diodes
Surface Mount – 400W > SMAJ-E series
P6SMB-E Series
RoHS Pb e3
08/21/202
P6SMB
41356
Description
Uni-directional
The P6SMB-E series is designed specifically to protect
sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
Features
Maximum Ratings and Thermal Characteristics
(TA=25OC unless otherwise noted)
Parameter
Symbol
Value
Unit
Peak Pulse Power Dissipation at TA=25ºC
by 10/1000µs Waveform (Fig.2)(Note 1),
(Note 2)
PPPM
600
W
Power Dissipation on Infinite Heat Sink at
TL=50OC
PD
5.0
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
VF
3.5
V
Operating Temperature Range
TJ
-65 to 150
°C
Storage Temperature Range
TSTG
-65 to 175
°C
Typical Thermal Resistance Junction to
Lead
RθJL
20
°C/W
Typical Thermal Resistance Junction to
Ambient
RθJA
100
°C/W
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.
Functional Diagram
Anode
Uni-directional
• 600W peak pulse power
capability at 10/1000μs
waveform, repetition rate
(duty cycles):0.01%
•H
igh temperature
to reflow soldering
guaranteed: 260°C/40sec
• VBR @ TJ= VBR@25°C
x (1+αT x (TJ - 25))
(αT:Temperature
Coefficient, typical value is
0.1%)
•E
PI silicon technology
•M
eet MSL level1, per
J-STD-020C, 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-STD609A.01)
Applications
Bi-directional
Cathode
• Excellent clamping
capability
• Low incremental surge
resistance
• 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)
• 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 BV min
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.
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: August 12, 2020 11:59 AM
TVS Diodes
Surface Mount – 400W > SMAJ-E series
Electrical Characteristics (T =25°C unless otherwise noted)
A
Part
Number
(Uni)
P6SMB350A-E
P6SMB400A-E
P6SMB440A-E
P6SMB480A-E*
P6SMB510A-E*
P6SMB530A-E*
P6SMB540A-E*
P6SMB550A-E*
P6SMB600A-E*
P6SMB650A-E*
P6SMB700A-E*
P6SMB800A-E*
P6SMB900A-E*
P6SMB1000A-E*
Reverse
Stand off
Marking
Voltage VR
(Volts)
350S
400S
440S
480S
510S
530S
540S
550S
600S
650S
700S
800S
900S
1000S
300
342
376
408
434
451
460
468
510
553
595
680
765
850
MIN
MAX
Test
Current
IT
(mA)
332.0
380.0
418.0
456.0
485.0
503.5
513.0
522.5
570.0
617.5
665.0
760.0
855.0
950.0
368.0
420.0
462.0
504.0
535.0
556.5
567.0
577.5
630.0
682.5
735.0
840.0
945.0
1050.0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Breakdown
Voltage VBR
(Volts) @ IT
Maximum
Maximum
Maximum
Reverse
Clamping
Peak Pulse
Leakage IR
Voltage VC
Current Ipp
@ Ipp
@ VR
(A)
(V)
(µA)
482.0
548.0
602.0
658.0
698.0
725.0
740.0
760.0
822.0
891.0
959.0
1096.0
1233.0
1365.0
1.30
1.10
1.00
0.95
0.86
0.83
0.82
0.79
0.73
0.68
0.63
0.55
0.50
0.44
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Note: for parts with * are still under development
I-V Curve Characteristics
Uni-directional
Vc VBR VR
IR VF
IT
V
Ipp
PPPM
VR
VBR
VC
IR
VF
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 (IT)
Clamping Voltage -- Peak voltage measured across the TVS at a specified Ippm (peak impulse current)
Reverse Leakage Current -- Current measured at VR
Forward Voltage Drop for Uni-directional
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: August 12, 2020 11:59 AM
TVS Diodes
Surface Mount – 400W > SMAJ-E series
Ratings and Characteristic Curves (T =25°C unless otherwise noted)
A
Figure 1 - TVS Transients Clamping Waveform
Figure 2 - Peak Pulse Power Rating
Voltage Transients
100
PPPM-Peak Pulse Power (kW)
Voltage Across TVS
Voltage or Current
TJ initial = Tamb
Current Through TVS
10
1
0.1
0.001
0.01
IPPM- Peak Pulse Current, % IRSM
Peak Pulse Power (PPP) or Current (IPP)
Derating in Percentage %
150
80
60
40
20
25
50
75
100
125 150
TJ - Initial Junction Temperature (ºC)
0
tr=10µsec
TJ=25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of IPPM
Peak Value
IPPM
100
Half Value
IPPM IPPM
( )
2
50
0
175
10/1000µsec. Waveform
as defined by R.E.A
td
1.0
0
2.0
3.0
4.0
t-Time (ms)
Figure 5 - Typical Junction Capacitance
Figure 6 - Typical Transient Thermal Impedance
1000.00
1000
Transient Thermal Impedance (°C/W)
Cj (pF)
10
Figure 4 - Pulse Waveform
100
0
1
td-Pulse Width (ms)
Time
Figure 3 - Peak Pulse Power Derating Curve
0.1
100.00
10.00
1.00
100
1000
VBR - Reverse Breakdown Voltage (V)
100
10
1
0.1
0.001
0.01
0.1
1
10
100
1000
TP - Pulse Duration (s)
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: August 12, 2020 11:59 AM
TVS Diodes
Surface Mount – 400W > SMAJ-E series
Figure 7 - Maximum Non-Repetitive Peak Forward
Surge Current Uni-Directional Only
Figure 8 - Peak Forward Voltage Drop vs Peak Forward
Current (Typical Values)
100.0
100
IF - Peak Forward Current(A)
IFSM - Peak Forward Surge Current (A)
120
80
60
40
10.0
1.0
20
0
1
10
0.1
100
0.0
Number of Cycles at 60 Hz
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
VF - Peak Forward Voltage(V)
Soldering Parameters
Pre Heat
Lead–free assembly
- Temperature Min (Ts(min))
150°C
- Temperature Max (Ts(max))
200°C
- Time (min to max) (ts)
60 – 180 secs
Ramp-up
TL
Average ramp up rate (Liquidus Temp (TA)
to peak
3°C/second max
TS(max) to TA - Ramp-up Rate
3°C/second max
Reflow
- Temperature (TA) (Liquidus)
217°C
- Time (min to max) (ts)
60 – 150 seconds
260
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
260°C
tL
Critical Zone
TL to TP
Ts(max)
Ts(min)
Ramp-down
ts
Preheat
25˚C
Peak Temperature (TP)
+0/-5
tp
TP
Temperature (T)
Reflow Condition
t 25˚C to Peak
Time (t)
°C
Physical Specifications
Environmental Specifications
High Temp. Storage
JESD22-A103
HTRB
JESD22-A108
Temperature Cycling
JESD22-A104
Weight
0.003 ounce, 0.093 grams
Case
JEDEC DO214AA. Molded plastic body
over glass passivated junction
MSL
JEDEC-J-STD-020, Level 1
Polarity
Color band denotes cathode except
Bidirectional
H3TRB
JESD22-A101
Terminal
Matte Tin-plated leads, Solderable per
JESD22-B102
RSH
JESD22-A111
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: August 12, 2020 11:59 AM
TVS Diodes
Surface Mount – 400W > SMAJ-E series
Dimensions
DO-214AA (SMB J-Bend)
C
A
B
H
D
F
E
G
K
J
Inches
Dimensions
Cathode Band
(for Uni-directional products only)
L
Millimeters
Min
Max
Min
Max
A
0.076
0.086
1.930
2.200
B
0.160
0.187
4.060
4.750
C
0.130
0.155
3.300
3.940
D
0.078
0.103
1.990
2.610
E
0.030
0.060
0.760
1.520
F
-
0.008
-
0.203
G
0.205
0.220
5.210
5.590
H
0.006
0.012
0.152
0.305
I
0.089
-
2.260
-
J
0.085
-
2.160
-
K
-
0.107
-
2.740
L
0.085
-
2.160
-
I
Solder Pads
Part Numbering
(allSystem
dimensions in mm)
Part Marking System
P6SMB xxx A-E
Cathode Band
(for Uni-directional products only)
F
EPI SILICON TECHNOLOGY
5% VBR VOLTAGE TOLERANCE
XX
YMXXX
VBR VOLTAGE
SERIES
Littelfuse Logo
Marking Code
Trace Code Marking
Y:Year Code
M: Month Code
XXX: Lot Code
Packaging
Part number
Component
Package
P6SMBxxxA-E
DO-214AA
Packaging
Option
Quantity
3000
Tape & Reel - 12mm tape/13” reel
Packaging
Specification
EIA STD RS-481
Tape and Reel Specification
0.157
(4.0)
0.47
(12.0)
Cathode
0.315
(8.0)
0.059 DIA
(1.5)
Cover tape
13.0 (330)
0.80 (20.2)
Arbor Hole Dia.
0.49
(12.5)
Dimensions are in inches
(and millimeters).
Direction of Feed
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: August 12, 2020 11:59 AM
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