1SMB5.0AT3 Series Datasheet by Rochester Electronics, LLC

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© Semiconductor Components Industries, LLC, 2009
October, 2009 Rev. 11
1Publication Order Number:
1SMB5.0AT3/D
1SMB5.0AT3 Series
600 Watt Peak Power Zener
Transient Voltage
Suppressors
Unidirectional*
The SMB 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 SMB series is supplied in
ON Semiconductor’s exclusive, cost-effective, highly reliable
Surmetict 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.
Features
Working Peak Reverse Voltage Range 5.0 V to 170 V
Standard Zener Breakdown Voltage Range 6.7 V to 199 V
Peak Power 600 W @ 1.0 ms
ESD Rating of Class 3 (>16 kV) per Human Body Model
Maximum Clamp Voltage @ Peak Pulse Current
Low Leakage < 5.0 mA Above 10 V
UL 497B for Isolated Loop Circuit Protection
Response Time is Typically < 1.0 ns
PbFree Packages are Available
Mechanical Characteristics
CASE: Void-free, transfer-molded, thermosetting plastic
FINISH: All external surfaces are corrosion resistant and leads are
readily solderable
MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
260°C for 10 Seconds
LEADS: Modified LBend providing more contact area to bond pads
POLARITY: Cathode indicated by polarity band
MOUNTING POSITION: Any
PLASTIC SURFACE MOUNT
ZENER OVERVOLTAGE
TRANSIENT SUPPRESSORS
5.0 V 170 V,
600 W PEAK POWER
Device Package Shipping
ORDERING INFORMATION
1SMBxxxAT3 SMB 2500/Tape & Reel
SMB
CASE 403A
PLASTIC
Cathode Anode
http://onsemi.com
1SMBxxxAT3G SMB
(PbFree)
2500/Tape & Reel
For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
See specific marking information in the device marking
column of the Electrical Characteristics table on page 3 of
this data sheet.
DEVICE MARKING INFORMATION
A = Assembly Location
Y = Year
WW = Work Week
xx = Device Code (Refer to page 3)
G= PbFree Package
MARKING DIAGRAM
AYWW
xx G
G
(Note: Microdot may be in either location)
UniDirectional TVS
IPP
IF
V
I
IR
IT
VRWM
VCVBR
VF
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MAXIMUM RATINGS
Rating Symbol Value Unit
Peak Power Dissipation (Note 1) @ TL = 25°C, Pulse Width = 1 ms PPK 600 W
DC Power Dissipation @ TL = 75°C
Measured Zero Lead Length (Note 2)
Derate Above 75°C
Thermal Resistance from JunctiontoLead
PD
RqJL
3.0
40
25
W
mW/°C
°C/W
DC Power Dissipation (Note 3) @ TA = 25°C
Derate Above 25°C
Thermal Resistance from JunctiontoAmbient
PD
RqJA
0.55
4.4
226
W
mW/°C
°C/W
Forward Surge Current (Note 4) @ TA = 25°C IFSM 100 A
Operating and Storage Temperature Range TJ, Tstg 65 to +150 °C
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 ms, nonrepetitive.
2. 1 in square copper pad, FR4 board.
3. FR4 board, using ON Semiconductor minimum recommended footprint, as shown in 403A case outline dimensions spec.
4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum.
ELECTRICAL CHARACTERISTICS (TA = 25°C unless
otherwise noted, VF = 3.5 V Max. @ IF (Note 5) = 30 A)
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
5. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms,
nonrepetitive duty cycle.
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ELECTRICAL CHARACTERISTICS (Devices listed in bold, italic are ON Semiconductor Preferred devices.)
Device*
Device
Marking
VRWM
(Note 6) IR @ VRWM
Breakdown Voltage VC @ IPP (Note 8) Ctyp
(Note 9)
VBR (Note 7) Volts @ ITVCIPP
VmAMin Nom Max mA V A pF
1SMB5.0AT3, G
1SMB6.0AT3, G
1SMB6.5AT3, G
1SMB7.0AT3, G
KE
KG
KK
KM
5.0
6.0
6.5
7.0
800
800
500
500
6.40
6.67
7.22
7.78
6.7
7.02
7.6
8.19
7.0
7.37
7.98
8.6
10
10
10
10
9.2
10.3
11.2
12.0
65.2
58.3
53.6
50.0
2700
2300
2140
2005
1SMB7.5AT3, G
1SMB8.0AT3, G
1SMB8.5AT3, G
1SMB9.0AT3, G
KP
KR
KT
KV
7.5
8.0
8.5
9.0
100
50
10
5.0
8.33
8.89
9.44
10.0
8.77
9.36
9.92
10.55
9.21
9.83
10.4
11.1
1.0
1.0
1.0
1.0
12.9
13.6
14.4
15.4
46.5
44.1
41.7
39.0
1890
1780
1690
1605
1SMB10AT3, G
1SMB11AT3, G
1SMB12AT3, G
1SMB13AT3, G
KX
KZ
LE
LG
10
11
12
13
5.0
5.0
5.0
5.0
11.1
12.2
13.3
14.4
11.7
12.85
14
15.15
12.3
13.5
14.7
15.9
1.0
1.0
1.0
1.0
17.0
18.2
19.9
21.5
35.3
33.0
30.2
27.9
1460
1345
1245
1160
1SMB14AT3, G
1SMB15AT3, G
1SMB16AT3, G
1SMB17AT3, G
LK
LM
LP
LR
14
15
16
17
5.0
5.0
5.0
5.0
15.6
16.7
17.8
18.9
16.4
17.6
18.75
19.9
17.2
18.5
19.7
20.9
1.0
1.0
1.0
1.0
23.2
24.4
26.0
27.6
25.8
24.0
23.1
21.7
1085
1020
965
915
1SMB18AT3, G
1SMB20AT3, G
1SMB22AT3, G
1SMB24AT3, G
LT
LV
LX
LZ
18
20
22
24
5.0
5.0
5.0
5.0
20.0
22.2
24.4
26.7
21.05
23.35
25.65
28.1
22.1
24.5
26.9
29.5
1.0
1.0
1.0
1.0
29.2
32.4
35.5
38.9
20.5
18.5
16.9
15.4
870
790
730
675
1SMB26AT3, G
1SMB28AT3, G
1SMB30AT3, G
1SMB33AT3, G
ME
MG
MK
MM
26
28
30
33
5.0
5.0
5.0
5.0
28.9
31.1
33.3
36.7
30.4
32.75
35.05
38.65
31.9
34.4
36.8
40.6
1.0
1.0
1.0
1.0
42.1
45.4
48.4
53.3
14.2
13.2
12.4
11.3
630
590
555
510
1SMB36AT3, G
1SMB40AT3, G
1SMB43AT3, G
1SMB45AT3, G
MP
MR
MT
MV
36
40
43
45
5.0
5.0
5.0
5.0
40.0
44.4
47.8
50.0
42.1
46.75
50.3
52.65
44.2
49.1
52.8
55.3
1.0
1.0
1.0
1.0
58.1
64.5
69.4
72.7
10.3
9.3
8.6
8.3
470
430
400
385
1SMB48AT3, G
1SMB51AT3, G
1SMB54AT3, G
1SMB58AT3, G
MX
MZ
NE
NG
48
51
54
58
5.0
5.0
5.0
5.0
53.3
56.7
60.0
64.4
56.1
59.7
63.15
67.8
58.9
62.7
66.3
71.2
1.0
1.0
1.0
1.0
77.4
82.4
87.1
93.6
7.7
7.3
6.9
6.4
365
345
330
310
1SMB60AT3, G
1SMB64AT3, G
1SMB70AT3, G
1SMB75AT3, G
NK
NM
NP
NR
60
64
70
75
5.0
5.0
5.0
5.0
66.7
71.1
77.8
83.3
70.2
74.85
81.9
87.7
73.7
78.6
86
92.1
1.0
1.0
1.0
1.0
96.8
103
113
121
6.2
5.8
5.3
4.9
300
280
260
245
1SMB85AT3, G
1SMB90AT3, G
1SMB100AT3, G
NV
NX
NZ
85
90
100
55.0
5.0
5.0
94.4
100
111
99.2
105.5
117
104
111
123
1.0
1.0
1.0
137
146
162
4.4
4.1
3.7
220
210
190
1SMB110AT3, G
1SMB120AT3, G
1SMB130AT3, G
1SMB150AT3, G
PE
PG
PK
PM
110
120
130
150
5.0
5.0
5.0
5.0
122
133
144
167
128.5
140
151.5
176
135
147
159
185
1.0
1.0
1.0
1.0
177
193
209
243
3.4
3.1
2.9
2.5
175
160
150
135
1SMB160AT3, G
1SMB170AT3, G
PP
PR
160
170
5.0
5.0
178
189
187.5
199
197
209
1.0
1.0
259
275
2.3
2.2
125
120
6. A transient suppressor is normally selected according to the working peak reverse voltage (VRWM), which should be equal to or greater than
the DC or continuous peak operating voltage level.
7. VBR measured at pulse test current IT at an ambient temperature of 25°C.
8. Surge current waveform per Figure 2 and derate per Figure 4 of the General Data 600 W at the beginning of this group.
9. Bias Voltage = 0 V, F = 1 MHz, TJ = 25°C
Please see 1SMB10CAT3 to 1SMB78CAT3 for Bidirectional devices.
* The “G” suffix indicates PbFree package available.
HALF VALUE 7* http://onsemi.com 4
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4
1SMB5.0AT3G
1SMB10AT3G
1SMB48AT3G
1SMB170AT3G
NONREPETITIVE
PULSE WAVEFORM
SHOWN IN FIGURE 2
tP
, PULSE WIDTH
1
10
100
0.1 ms1 ms10 ms 100 ms1 ms 10 ms
0.1
Figure 1. Pulse Rating Curve
01 2 34
0
50
100
t, TIME (ms)
VALUE (%)
HALF VALUE - IPP
2
PEAK VALUE - IPP
tr 10 ms
Figure 2. Pulse Waveform
Figure 3. Pulse Derating Curve
Vin VL
Zin
LOAD
Figure 4. Typical Junction Capacitance vs.
Bias Voltage
PEAK PULSE DERATING IN % OF
PEAK POWER OR CURRENT @ T
A= 25 C°
100
80
60
40
20
00 25 50 75 100 125 150
TA, AMBIENT TEMPERATURE (°C)
120
140
160
tP
PULSE WIDTH (tP) IS DEFINED AS
THAT POINT WHERE THE PEAK
CURRENT DECAYS TO 50% OF
IPP
.
BIAS VOLTAGE (VOLTS)
Figure 5. Typical Protection Circuit
1 10 100 1000
10
100
1000
10,000
C, CAPACITANCE (pF)
PPK, PEAK POWER (kW)
1
TJ = 25°C
f = 1 MHz
5
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APPLICATION NOTES
RESPONSE TIME
In most applications, the transient suppressor device is
placed in parallel with the equipment or component to be
protected. In this situation, there is a time delay associated
with the capacitance of the device and an overshoot
condition associated with the inductance of the device and
the inductance of the connection method. The capacitive
effect is of minor importance in the parallel protection
scheme because it only produces a time delay in the
transition from the operating voltage to the clamp voltage as
shown in Figure 6.
The inductive effects in the device are due to actual
turn-on time (time required for the device to go from zero
current to full current) and lead inductance. This inductive
effect produces an overshoot in the voltage across the
equipment or component being protected as shown in
Figure 7. Minimizing this overshoot is very important in the
application, since the main purpose for adding a transient
suppressor is to clamp voltage spikes. The SMB series have
a very good response time, typically < 1.0 ns and negligible
inductance. However, external inductive effects could
produce unacceptable overshoot. Proper circuit layout,
minimum lead lengths and placing the suppressor device as
close as possible to the equipment or components to be
protected will minimize this overshoot.
Some input impedance represented by Zin is essential to
prevent overstress of the protection device. This impedance
should be as high as possible, without restricting the circuit
operation.
DUTY CYCLE DERATING
The data of Figure 1 applies for non-repetitive conditions
and at a lead temperature of 25°C. If the duty cycle increases,
the peak power must be reduced as indicated by the curves
of Figure 8. Average power must be derated as the lead or
ambient temperature rises above 25°C. The average power
derating curve normally given on data sheets may be
normalized and used for this purpose.
At first glance the derating curves of Figure 8 appear to be
in error as the 10 ms pulse has a higher derating factor than
the 10 ms pulse. However, when the derating factor for a
given pulse of Figure 8 is multiplied by the peak power
value of Figure 1 for the same pulse, the results follow the
expected trend.
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VL
V
Vin
Vin (TRANSIENT)
VL
td
V
Vin (TRANSIENT)
OVERSHOOT DUE TO
INDUCTIVE EFFECTS
tD = TIME DELAY DUE TO CAPACITIVE EFFECT
t t
Figure 6. Figure 7.
Figure 8. Typical Derating Factor for Duty Cycle
DERATING FACTOR
1 ms
10 ms
1
0.7
0.5
0.3
0.05
0.1
0.2
0.01
0.02
0.03
0.07
100 ms
0.1 0.2 0.5 2 5 10 501 20 100
D, DUTY CYCLE (%)
PULSE WIDTH
10 ms
UL RECOGNITION
The entire series has Underwriters Laboratory
Recognition for the classification of protectors (QVGQ2)
under the UL standard for safety 497B and File #E210057.
Many competitors only have one or two devices recognized
or have recognition in a non-protective category. Some
competitors have no recognition at all. With the UL497B
recognition, our parts successfully passed several tests
including Strike Voltage Breakdown test, Endurance
Conditioning, Temperature test, Dielectric
Voltage-Withstand test, Discharge test and several more.
Whereas, some competitors have only passed a
flammability test for the package material, we have been
recognized for much more to be included in their Protector
category.
L f L T he rue 2,743
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7
PACKAGE DIMENSIONS
SMB
CASE 403A03
ISSUE F
*For additional information on our PbFree strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
ǒmm
inchesǓ
SCALE 8:1
2.743
0.108
2.159
0.085
2.261
0.089
E
bD
c
L1
L
A
A1
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. D DIMENSION SHALL BE MEASURED WITHIN DIMENSION P.
DIM
A
MIN NOM MAX MIN
MILLIMETERS
1.90 2.13 2.45 0.075
INCHES
A1 0.05 0.10 0.20 0.002
b1.96 2.03 2.20 0.077
c0.15 0.23 0.31 0.006
D3.30 3.56 3.95 0.130
E4.06 4.32 4.60 0.160
L0.76 1.02 1.60 0.030
0.084 0.096
0.004 0.008
0.080 0.087
0.009 0.012
0.140 0.156
0.170 0.181
0.040 0.063
NOM MAX
5.21 5.44 5.60 0.205 0.214 0.220
HE
0.51 REF 0.020 REF
D
L1
HE
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
N. American Technical Support: 8002829855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81357733850
1SMB5.0AT3/D
SURMETIC is a trademark of Semiconductor Components Industries, LLC.
LITERATURE FULFILLMENT:
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