SZ1SMCxxAT3G Series Datasheet by Littelfuse Inc.

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% Littelfuse" —HF|:INN@O
© 2021 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: GD. 01/08/21
TVS Diodes
Surface Mount > 1500W > SZ1SMC Series
Zener Transient
Overvoltage Suppressors
Working Peak Reverse
Voltage Range − 5.0 V to
78 V
Standard Zener
Breakdown Voltage Range
− 6.4 V to 95.8 V
Peak Power − 1500 W@1
ms
ESD Rating of Class 3 (>
16 KV) per Human Body
Model
Maximum Clamp Voltage
@ Peak Pulse Current
Low Leakage < 5 µA
Above 10 V
UL Recognized to UL
497B as an Isolated Loop
Circuit Protector.
Maximum Temperature
Coefficient Specified
Response Time is Typically
< 1 ns
Pb−Free Packages are
Available
• SZ Prefix for Automotive
and Other Applications
Requiring Unique Site
and Control Change
Requirements;
AEC−Q101 Qualified and
PPAP Capable
Features
The SZ1SMC series is designed to protect voltage
sensitive components from high voltage, high energy
transients. They have excellent clamping capability, high
surge capability, low zener impedance and fast response
time. The SZ1SMC series is supplied in the Littelfuse
exclusive, cost-effective, highly reliable DO-214AB package
and is ideally suited for use in communication systems,
automotive, numerical controls, process controls, medical
equipment, business machines, power supplies and many
other industrial/consumer applications.
Description
Parameter Symbol Value Unit
Peak Power Dissipation (Note 1) @ TL =
25°C, Pulse Width = 1 ms PPK 1500 W
DC Power Dissipation @ TL = 75°C
Measured Zero Lead Length (Note 2)
Derate Above 75°C
Thermal Resistance from Junction−to−
Lead
PD
RƟJL
4.0
54.6
18.3
W
mW/°C
°C/W
DC Power Dissipation (Note 3)
@ TA = 25°C
Derate Above 25°C
Thermal Resistance from Junction–to–
Ambient
PD
RƟJA
0.75
6.1
165
W
mW/°C
°C/W
Forward Surge Current (Note 4) @ TA =
25°C IFSM 200 A
Operating and Storage Temperature
Range
TJ
Tstg
-65 to
+150 °C
Maximum Ratings and Thermal Characteristics
SZ1SMC Series
Functional Diagram
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are
stress ratings only. Functional operation above the Recommended Operating Conditions is
not implied. Extended exposure to stresses above the Recommended Operating Conditions
may affect device reliability.
1. 10 x 1000 µs, non−repetitive.
2. 1 in square copper pad, FR−4 board.
3. FR−4 board, using Littelfuse minimum recommended footprint
4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per
minute maximum.
Additional Information
Samples
Resources
Datasheet
Agency Approvals
Agency Agency File Number
E128662
Bi-directional
Uni-directional
Cathode Anode
RoHS
Pb
e3
% Littelfuse" Wm Wm \ A 9mm
© 2021 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: GD. 01/08/21
TVS Diodes
Surface Mount > 1500W > SZ1SMC Series
Symbol Parameter
IPP Maximum Reverse Peak Pulse Current
VCClamping Voltage @ IPP
VRWM Working Peak Reverse Voltage
IRMaximum Reverse Leakage Current @ VRWM
VBR Breakdown Voltage @ IT
ITTest Current
IFForward Current
VFForward Voltage @ IF
I-V Curve Characteristics (TA = 25°C unless otherwise noted, VF = 3.5 V Max @ IF = 100 A) (Note 5)
V
I
5. 1/2 sine wave or equivalent, PW= 8.3 ms non-repetitive duty cycle
Electrical Characteristics (TA = 25°C unless otherwise noted)
Device Device
Marking
VRWM
(Note 6)
IR @
VRWM
Breakdown Voltage VC @ IPP
(Note 8)
VBR (V)
(Note 7) @ ITVCIPP
Volts µA Min Nom Max mA Volts Amps
SZ1SMC5.0AT3G GDE 5.0 1000 6.40 6.70 7. 0 0 10 9.2 163.0
SZ1SMC6.0AT3G GDG 6.0 1000 6.67 7.02 7.37 10 10.3 145.6
SZ1SMC6.5AT3G GDK 6.5 500 7.22 7.60 7.98 10 11. 2 133.9
SZ1SMC7.5AT3G GDP 7. 5 100 8.33 8.77 9.21 112.9 116.3
SZ1SMC8.0AT3G GDR 8.0 50 8.89 9.36 9.83 113.6 110.3
SZ1SMC9.0AT3G GDV 9.0 10 10.00 10.55 11. 10 115.4 97.4
SZ1SMC10AT3G GDX 10 511. 10 11.70 12.30 11 7. 0 88.2
SZ1SMC12AT3G GEE 12 513.30 14.00 14.70 119.9 75.3
SZ1SMC13AT3G GEG 13 514.40 15.15 15.90 121.5 69.7
SZ1SMC14AT3G GEK 14 515.60 16.40 17.20 123.2 64.7
SZ1SMC15AT3G GEM 15 516.70 17.60 18.50 124.4 61.5
SZ1SMC16AT3G GEP 16 517.80 18.75 19.70 126.0 57.7
SZ1SMC17AT3G GER 17 518.90 19.90 20.90 127.6 53.3
SZ1SMC18AT3G GET 18 520.00 21.05 22.10 129.2 51.4
SZ1SMC20AT3G GEV 20 522.20 23.35 24.50 132.4 46.3
SZ1SMC22AT3G GEX 22 524.40 25.65 26.90 135.5 42.2
SZ1SMC24AT3G GEZ 24 526.70 28.10 29.50 138.9 38.6
SZ1SMC26AT3G GFE 26 528.90 30.40 31.90 142.1 35.6
SZ1SMC28AT3G GFG 28 531.10 32.75 34.40 145.4 33.0
SZ1SMC30AT3G GFK 30 533.30 35.05 36.80 148.4 31.0
SZ1SMC33AT3G GFM 33 536.70 38.65 40.60 153.3 28.1
SZ1SMC36AT3G GFP 36 540.00 42.10 44.20 158.1 25.8
SZ1SMC40AT3G GFR 40 544.40 46.75 49.10 164.5 32.2
SZ1SMC43AT3G GFT 43 547.80 50.30 52.80 169.4 21.6
SZ1SMC48AT3G GFX 48 553.30 56.10 58.90 177.4 19.4
SZ1SMC51AT3G GFZ 51 556.70 59.70 62.70 182.4 18.2
SZ1SMC54AT3G GGE 54 560.00 63.15 66.30 187.1 1 7. 2
SZ1SMC58AT3G GGG 58 564.40 67.80 71.20 193.6 16.0
SZ1SMC60AT3G GGK 60 566.70 70.20 73.70 196.8 15.5
SZ1SMC64AT3G GGM 64 571.10 74.85 78.60 1103.0 14.6
SZ1SMC70AT3G GGP 70 577.80 81.90 86.00 1113.0 13.3
SZ1SMC75AT3G GGR 75 583.30 87.70 92.10 1121.0 12.4
SZ1SMC78AT3G GGT 78 586.70 91.25 95.80 1126.0 11. 4
6. A transient suppressor is normally selected according to the maximum working peak reverse voltage (VRWM), which should be equal to or greater than
the DC or continuous peak operating voltage level.
7. V BR measured at pulse test current IT at an ambient temperature of 25°C.
8. Surge current waveform per Figure 2 and derate per Figure 3 of the General Data − 1500 Watt at the beginning of this group.
For Uni-directional
PMLSEW‘DTHMS DEHNED Vslfl W AS THAT PD‘NTWHERE THE PEAK: \ CURRENT DEEAVS TD filfi um ‘ OF M 7 - PEAK VALUE , w» 5 \ § ‘ I § HALF VALUE , 7", 50 e .7» w \ n ‘ \ I) I 1 3 I t, T‘ME (mxl
© 2021 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: GD. 01/08/21
TVS Diodes
Surface Mount > 1500W > SZ1SMC Series
Figure 1. Pulse Rating Curve
Ratings and Characteristic Curves
Figure 2. Pulse Waveform
Figure 3. Surge Derating Curve Figure 4. Typical Junction Capacitance vs. Bias Voltage
1
10
100
0.00001 0.0001 0.001 0.01 0.1 1 10
Ppk,Peak Power (KW)
t
p
Pulse Width (ms)
NONREPETITIVE
PULSE WAVEFORM
SHOWN IN FIGURE 2
0
20
40
60
80
100
120
0 40 80 120 160
Peak Pulse Derating in %
of Peak Current
T
A
Ambient Temperature(˚C)
10/1000 Waveform
1
10
100
1000
10000
1 10 100
C,Capacitance(pF)
Bias Volatage (Volts)
T
J
= 25˚C
SZ1SMC78AT3G
fl] k 434:» 0,171 E E L 2794 :9 Eli 0.110 —_F=
© 2021 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: GD. 01/08/21
TVS Diodes
Surface Mount > 1500W > SZ1SMC Series
Physical Specifications
Weight 0.00733 ounce, 0.228 grams
Case JEDEC DO-214AB. Void-Free, Transfer-Molded,
Thermosetting Plastic Epoxy Meets UL 94V-0
Polarity Color band denotes cathode for unidirectional
components.
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 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
Dimensions Soldering Footprint
Ordering Information
Device Package Shipping
SZ1SMCxxAT3G SMC
(Pb−Free)
2,500 /
Tape & Reel
Dim
Inches Millimeters
Min Nom Max Min Nom Max
A0.079 0.087 0.095 2.00 2.22 2.41
A1 0.002 0.004 0.008 0.05 0.10 0.20
b0.115 0.118 0.125 2.92 3.00 3.18
c0.006 0.009 0.012 0.15 0.23 0.30
D0.220 0.230 0.240 5.59 5.84 6.10
E0.260 0.270 0.280 6.60 6.86 7.11
HE0.305 0.313 0.320 7.75 7.94 8 .13
L0.030 0.040 0.050 0.76 1.02 1.27
L1 0.020 REF 0.51 REF
mm
inches
c
L1L A1
A
E
HE
Db
fir <1) flflifiij:="">
© 2021 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: GD. 01/08/21
TVS Diodes
Surface Mount > 1500W > SZ1SMC Series
Part Marking System
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.
2
Anode
1
Cathode XXXX
YMAWW
XXXX =Device Code
Y=Year
M=Month
A=Assembly Location
WW =Lot Code
Part Numbering System
SMC TVS
Type Code
A Uni Directional TVS
Zener Automotive
SZ 1SMC A T3
Tape/Reel Designator
G
Pb Free Plating
xx
VR
VO LTAGE
Tape and Reel Specification
0.47
(12.0)
0.315
(8.0)
0.157
(4.0)
0.685
(17.4)
0.80 (20.2)
Arbor Hole Dia.
13.0 (330)
Dimensions are in inches
(and millimeters).
Direction of Feed
0.061 DIA
(1.55) Cover tape
Cathode mark for
uni-directional components

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