Transient Voltage Suppression Diodes
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/30/18
Surface Mount – 600W > SMA6L series
Description
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 1,2,3) PPPM 600 W
Power Dissipation on Infinite Heat Sink
at TL=50OCPD3 W
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave (Note 4) IFSM 60 A
Maximum Instantaneous Forward
Voltage at 25A for Unidirectional
Only VF3.5 V
Operating Temperature Range TJ
-65 to
150 °C
Storage Temperature Range TSTG
-65 to
175 °C
Typical Thermal Resistance Junction to
Lead RθJL 35 °C/W
Typical Thermal Resistance Junction to
Ambient RθJA 200 °C/W
Notes:
1. Non-repetitive current pulse, per Fig.4 and derated above TJ (initial) =25ºC per Fig. 3.
2. Mounted on 5.0x5.0mm copper pad to each terminal.
3. SMA6L150A~SMA6L250A Peak Pulse Power Dissipation by 10/1000μs Waveform
(PPPM ) is 400W
4. Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional
device only.
The SMA6L series is designed specifically to protect
sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
The SMA6L low profile package has the same power
performance as the SMB package but with lowest height
profiles (1.1mm) in the industry.
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.
• Same power as standard
SMB devices (600 W)
• SMA low profile package:
less than 1.1 mm
• Footprint compatibility
with standard SMA and
SMB products (easy to
layout)
• Typical failure mode is a
short circuit condition for
current events exceeding
component rating
• 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
• Low inductance, excellent
clamping capability
• Fast response time:
typically less than 1.0ns
from 0 Volts to VBR min
• Built-in strain relief
• Glass passivated junction
• Typical IR < 1µA when
VBR min > 12 V
• High temperature 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%)
• UL Recognized
compound meeting
flammability rating V-0
• Meet MSL level1, per
J-STD-020, lead-frame
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)
SMA6L Series
Functional Diagram
Bi-directional
Uni-directional
Cathode Anode
Uni-directional
Agency Approvals
AGENCY AGENCY FILE NUMBER
E230531
RoHS
Pb
e3
Datasheet
Additional Infomarion
Resources
Samples
Transient Voltage Suppression Diodes
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/30/18
Surface Mount – 600W > SMA6L series
Electrical Characteristics (TA=25°C unless otherwise noted)
Part
Number
(Uni)
Marking
Code
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
MIN MAX
SMA6L5.0A AE 5.0 6.40 7.00 10 9.2 65.3 800 x
SMA6L6.0A AG 6.0 6.67 7.37 10 10.3 58.3 800 x
SMA6L6.5A AK 6.5 7.22 7.98 10 11. 2 53.6 500 x
SMA6L7.0A AM 7. 0 7.78 8.60 10 12.0 50.0 200 x
SMA6L7.5A AP 7. 5 8.33 9.21 1 12.9 46.6 100 x
SMA6L8.0A AR 8.0 8.89 9.83 1 13.6 44.2 50 x
SMA6L8.5A AT 8.5 9.44 10.40 1 14.4 41.7 20 x
SMA6L9.0A AV 9.0 10.00 11.10 1 15.4 39.0 10 x
SMA6L10A AX 10.0 11.10 12.30 1 1 7. 0 35.3 5 x
SMA6L11A AZ 11. 0 12.20 13.50 1 18.2 33.0 1 x
SMA6L12A BE 12.0 13.30 14.70 1 19.9 30.2 1 x
SMA6L13A BG 13.0 14.40 15.90 1 21.5 28.0 1 x
SMA6L14A BK 14.0 15.60 17.20 1 23.2 25.9 1 x
SMA6L15A BM 15.0 16.70 18.50 1 24.4 24.6 1 x
SMA6L16A BP 16.0 17.80 19.70 1 26.0 23.1 1 x
SMA6L17A BR 1 7. 0 18.90 20.90 1 27.6 21.8 1 x
SMA6L18A BT 18.0 20.00 22.10 1 29.2 20.6 1 x
SMA6L20A BV 20.0 22.20 24.50 1 32.4 18.6 1 x
SMA6L22A BX 22.0 24.40 26.90 1 35.5 16.9 1 x
SMA6L24A BZ 24.0 26.70 29.50 1 38.9 15.5 1 x
SMA6L26A CE 26.0 28.90 31.90 1 42.1 14.3 1 x
SMA6L28A CG 28.0 31.10 34.40 1 45.4 13.3 1 x
SMA6L30A CK 30.0 33.30 36.80 1 48.4 12.4 1 x
SMA6L33A CM 33.0 36.70 40.60 1 53.3 11.3 1 x
SMA6L36A CP 36.0 40.00 44.20 1 58.1 10.4 1 x
SMA6L40A CR 40.0 44.40 49.10 1 64.5 9.3 1 x
SMA6L43A CT 43.0 47.80 52.80 1 69.4 8.7 1 x
SMA6L45A CV 45.0 50.00 55.30 1 72.7 8.3 1 x
SMA6L48A CX 48.0 53.30 58.90 1 77.4 7. 8 1 x
SMA6L51A CZ 51.0 56.70 62.70 1 82.4 7. 3 1 x
SMA6L54A RE 54.0 60.00 66.30 1 87.1 6.9 1 x
SMA6L58A RG 58.0 64.40 71.20 1 93.6 6.5 1 x
SMA6L60A RK 60.0 66.70 73.70 1 96.8 6.2 1 x
SMA6L64A RM 64.0 71.10 78.60 1 103.0 5.9 1 x
SMA6L70A RP 70.0 77.80 86.00 1 113.0 5.3 1 x
SMA6L75A RR 75.0 83.30 92.10 1 121.0 5.0 1 x
SMA6L78A RT 78.0 86.70 95.80 1 126.0 4.8 1 x
SMA6L85A RV 85.0 94.40 104.00 1 137.0 4.4 1 x
SMA6L90A RX 90.0 100.0 111.00 1 146.0 4.2 1 x
SMA6L100A RZ 100.0 111.0 123.00 1 162.0 3.7 1 x
SMA6L 110A SE 110 .0 122.0 135.00 1 177.0 3.4 1 x
SMA6L120A SG 120.0 133.0 147.00 1 193.0 3.2 1 x
SMA6L 130A SK 130.0 144.0 159.00 1 209.0 2.9 1 x
SMA6L150A SM 150.0 167.0 185.00 1 243.0 1.65 1 x
SMA6L160A SP 160.0 178.0 197.00 1 259.0 L55 1 x
SMA6L170A SR 170.0 189.0 209.00 1 275.0 1.50 1 x
SMA6L180A ST 180.0 201.0 222.00 1 292.0 1.40 1 x
SMA6L185A SU 185.0 209.0 231.00 1 303.0 1.40 1 x
SMA6L200A SV 200.0 224.0 247.00 1 324.0 1.25 1 x
SMA6L215A SW 215.0 237.0 263.00 1 344.0 1.17 1 x
SMA6L220A SX 220.0 246.0 272.00 1 356.0 1.13 1 x
SMA6L250A SZ 250.0 279.0 309.00 1 405.0 0.95 1 x
Transient Voltage Suppression Diodes
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/30/18
Surface Mount – 600W > SMA6L series
I-V Curve Characteristics
Vc VBR VR
IR
IT
Ipp
V
Uni-directional
VF
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 @ 10/1000)
IR Reverse Leakage Current -- Current measured at VR
VF Forward Voltage Drop for Uni-directional
0.1
1
10
100
0.0000010.00001 0.0001 0.001
td-Pulse Width (sec.)
0.2x0.2" (5.0x5.0mm)
Copper Pad Area
PPPM-Peak Pulse Power (kW)
Figure 2 - Peak Pulse Power Rating Curve
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)
continues on next page.
Transient Voltage Suppression Diodes
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/30/18
Surface Mount – 600W > SMA6L series
Figure 3 - Peak Pulse Power Derating Curve
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 ( )
Figure 4 - Pulse Waveform
Ratings and Characteristic Curves (TA=25°C unless otherwise noted) (Continued)
0
20
40
60
80
100
0255075100 125175
Peak Pulse Power (P
PP) or Current (IPP)
Derating in Percentage
%
150
TJ - Initial Junction Temperature (ºC)
1
10
100
1000
10000
1.010.0100.01000.0
Cj (pF)
Tj=25ºC
f=1.0MHz
Vsig=50mVp-p
Uni-directional V=0V
Uni-directional @V
R
V
BR
- Reverse Breakdown Voltage (V)
Figure 5 - Typical Junction Capacitance
0
10
20
30
40
50
60
70
80
110100
IFSM - Peak Forward Surve Current(A)
Number of Cycles at 60 Hz
Figure 6 - Maximum Non-Repetitive Forward Surge
Current Uni-Directional Only
0.01
0.1
1
10
100
0123456
I
F
- Peak Forward Current(A)
V
F
-Peak Forward Voltage(V)
Figure 7 - Peak Forward Voltage Drop vs Peak
Forward Current (typical values)
Transient Voltage Suppression Diodes
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/30/18
Surface Mount – 600W > SMA6L series
Dimensions
Physical Specifications
Weight 0.002 ounce, 0.032 gram
Case JEDEC DO-221AC Molded Plastic over
glass passivated junction
Polarity Color band denotes cathode except
Bipolar
Terminal Matte Tin-plated leads, Solderable per
JESD22-B102
Dimensions Inches Millimeters
Min Max Min Max
A 0.156 0.181 3.950 4.600
B 0.189 0.220 4.800 5.600
C 0.049 0.069 1.250 1.750
D 0.088 0.116 2.250 2.950
E 0.030 0.059 0.750 1.500
F 0.005 0.010 0.125 0.250
G 0.035 0.043 0.900 1. 10 0
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 – 180 secs
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
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 260°C
D
3.12 (0.123) 1.20 (0.047)
1.52 (0.060)
Mounting Pad Layout
A
B
EE
C
G
F
Cathode Band
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
Transient Voltage Suppression Diodes
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/30/18
Surface Mount – 600W > SMA6L series
Part Numbering System Part Marking System
Packaging
Part number Component
Package Quantity Packaging
Option Packaging
Specification
SMA6LxxA DO-221AC 3000 Tape & Reel – 12mm/7” tape EIA RS-481
SMA6L xx A
SERIES
5%
VBR
VOLTAGE TOLERANCE
VR
VOLTAGE
Tape and Reel Specification
0.47
(12.0)
0.157
(4.0)
0.157
(4.0)
0.49
(12.5)
0.80 (20.2)
Arbor Hole Dia.
7.0 (178)
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
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test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications.
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