ETC 1SMB10CAT3/D

1SMB10CAT3 Series
600 Watt Peak Power Zener
Transient Voltage Suppressors
Bidirectional*
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
Surmetic 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.
Specification Features:
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PLASTIC SURFACE MOUNT
ZENER OVERVOLTAGE
TRANSIENT SUPPRESSORS
10–78 VOLTS
600 WATT PEAK POWER
Working Peak Reverse Voltage Range – 10 V to 78 V
Standard Zener Breakdown Voltage Range – 11.7 V to 91.3 V
Peak Power – 600 Watts @ 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 497B for Isolated Loop Circuit Protection
Response Time is Typically < 1 ns
SMB
CASE 403A
PLASTIC
Mechanical Characteristics:
CASE: Void-free, transfer-molded, thermosetting plastic
FINISH: All external surfaces are corrosion resistant and leads are
readily solderable
MARKING DIAGRAM
MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
260°C for 10 Seconds
LEADS: Modified L–Bend providing more contact area to bond pads
POLARITY: Polarity band will not be indicated
MOUNTING POSITION: Any
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 Junction to Lead
PD
3.0
W
RJL
40
25
mW/°C
°C/W
PD
0.55
W
RJA
4.4
226
mW/°C
°C/W
–65 to
+150
°C
DC Power Dissipation (Note 3.) @ TA = 25°C
Derate Above 25°C
Thermal Resistance from Junction
to Ambient
Operating and Storage
Temperature Range
TJ, Tstg
YWW
xxC
Y
WW
xxC
= Year
= Work Week
= Specific Device Code
= (See Table Next Page)
ORDERING INFORMATION
Device 1SMBxxCAT3
Package
Shipping
SMB
2500/Tape & Reel
Devices listed in bold, italic are ON Semiconductor
Preferred devices. Preferred devices are recommended
choices for future use and best overall value.
†The “T3” suffix refers to a 13 inch reel.
1. 10 X 1000 s, non–repetitive
2. 1″ square copper pad, FR–4 board
3. FR–4 board, using ON Semiconductor minimum recommended footprint, as
shown in 403A case outline dimensions spec.
*Please see 1SMB5.0AT3 to 1SMB170AT3 for Unidirectional devices.
 Semiconductor Components Industries, LLC, 2001
May, 2001 – Rev. 4
1
Publication Order Number:
1SMB10CAT3/D
1SMB10CAT3 Series
ELECTRICAL CHARACTERISTICS
I
(TA = 25°C unless otherwise noted)
Symbol
IPP
Parameter
IPP
Maximum Reverse Peak Pulse Current
VC
Clamping Voltage @ IPP
VRWM
IR
VBR
IT
IT
VC VBR VRWM IR
IR VRWM VBR VC
IT
Working Peak Reverse Voltage
V
Maximum Reverse Leakage Current @ VRWM
Breakdown Voltage @ IT
IPP
Test Current
Bi–Directional TVS
ELECTRICAL CHARACTERISTICS (Devices listed in bold, italic are ON Semiconductor Preferred devices.)
Device
Device
Marking
Breakdown Voltage
VC @ IPP (Note 6.)
VRWM
(Note 4.)
IR @ VRWM
@ IT
VC
IPP
Volts
µA
Min
Nom
Max
mA
Volts
Amps
VBR (Note 5.) Volts
1SMB10CAT3
1SMB11CAT3
1SMB12CAT3
1SMB13CAT3
KXC
KZC
LEC
LGC
10
11
12
13
5.0
5.0
5.0
5.0
11.1
12.2
13.3
14.4
11.69
12.84
14.00
15.16
12.27
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
1SMB14CAT3
1SMB15CAT3
1SMB16CAT3
1SMB17CAT3
LKC
LMC
LPC
LRC
14
15
16
17
5.0
5.0
5.0
5.0
15.6
16.7
17.8
18.9
16.42
17.58
18.74
19.90
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
1SMB18CAT3
1SMB20CAT3
1SMB22CAT3
1SMB24CAT3
LTC
LVC
LXC
LZC
18
20
22
24
5.0
5.0
5.0
5.0
20.0
22.2
24.4
26.7
21.06
23.37
25.69
28.11
22.1
24.5
27.0
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
1SMB26CAT3
1SMB28CAT3
1SMB30CAT3
1SMB33CAT3
MEC
MGC
MKC
MMC
26
28
30
33
5.0
5.0
5.0
5.0
28.9
31.1
33.3
36.7
30.42
32.74
35.06
38.63
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
1SMB36CAT3
1SMB40CAT3
1SMB43CAT3
1SMB45CAT3
MPC
MRC
MTC
MVC
36
40
43
45
5.0
5.0
5.0
5.0
40.0
44.4
47.8
50.0
42.11
46.74
50.32
52.63
44.2
49.1
52.8
55.3
1.0
1.0
1.0
1.0
58.1
64.5
69.4
72.2
10.3
9.3
8.6
8.3
1SMB48CAT3
1SMB51CAT3
1SMB54CAT3
1SMB58CAT3
MXC
MZC
NEC
NGC
48
51
54
58
5.0
5.0
5.0
5.0
53.3
56.7
60.0
64.4
56.11
59.69
63.16
67.79
58.9
62.7
66.32
71.18
1.0
1.0
1.0
1.0
77.4
82.4
87.1
93.6
7.7
7.3
6.9
6.4
1SMB60CAT3
1SMB64CAT3
1SMB70CAT3
1SMB75CAT3
NKC
NMC
NPC
NRC
60
64
70
75
5.0
5.0
5.0
5.0
66.7
71.1
77.8
83.3
70.21
74.84
81.90
91.65
73.72
78.58
85.99
92.07
1.0
1.0
1.0
1.0
96.8
103
113
121
6.2
5.8
5.3
4.9
1SMB78CAT3
NTC
78
5.0
86.7
91.26
95.83
1.0
126
4.7
4. 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.
5. VBR measured at pulse test current IT at an ambient temperature of 25°C.
6. Surge current waveform per Figure 2 and derate per Figure 3 of the General Data – 600 Watt at the beginning of this group.
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1SMB10CAT3 Series
NONREPETITIVE
PULSE WAVEFORM
SHOWN IN FIGURE 2
PULSE WIDTH (tP) IS DEFINED
AS THAT POINT WHERE THE PEAK
CURRENT DECAYS TO 50% OF IPP.
tr≤ 10 µs
100
10
PEAK VALUE - IPP
VALUE (%)
PPK, PEAK POWER (kW)
100
HALF VALUE 50
1
IPP
2
tP
0.1
0.1 µs
1 µs
10 µs
100 µs
1 ms
10 ms
0
0
1
3
4
tP, PULSE WIDTH
t, TIME (ms)
Figure 1. Pulse Rating Curve
Figure 2. Pulse Waveform
160
PEAK PULSE DERATING IN % OF
PEAK POWER OR CURRENT @ TA = 25° C
2
TYPICAL PROTECTION CIRCUIT
140
Zin
120
100
80
Vin
60
40
20
0
0
25
50
75
100
125
150
TA, AMBIENT TEMPERATURE (°C)
Figure 3. Pulse Derating Curve
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LOAD
VL
1SMB10CAT3 Series
APPLICATION NOTES
RESPONSE TIME
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.
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 4.
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 5. 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 ns and negligible
inductance. However, external inductive effects could
produce unacceptable overshoot. Proper circuit layout,
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 6. 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 6 appear to be
in error as the 10 ms pulse has a higher derating factor than
the 10 µs pulse. However, when the derating factor for a
given pulse of Figure 6 is multiplied by the peak power value
of Figure 1 for the same pulse, the results follow the
expected trend.
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4
1SMB10CAT3 Series
V
V
Vin (TRANSIENT)
OVERSHOOT DUE TO
INDUCTIVE EFFECTS
Vin (TRANSIENT)
VL
VL
Vin
td
tD = TIME DELAY DUE TO CAPACITIVE EFFECT
t
t
Figure 4.
Figure 5.
1
0.7
DERATING FACTOR
0.5
0.3
0.2
PULSE WIDTH
10 ms
0.1
0.07
0.05
1 ms
0.03
100 µs
0.02
10 µs
0.01
0.1 0.2
0.5
1
2
5
10
D, DUTY CYCLE (%)
20
50 100
Figure 6. Typical Derating Factor for Duty Cycle
UL RECOGNITION
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.
The entire series has Underwriters Laboratory
Recognition for the classification of protectors (QVGV2)
under the UL standard for safety 497B and File #116110.
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
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1SMB10CAT3 Series
OUTLINE DIMENSIONS
Transient Voltage Suppressors – Surface Mounted
600 Watt Peak Power
SMB
DO–214AA
CASE 403A–03
ISSUE D
S
A
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. D DIMENSION SHALL BE MEASURED WITHIN
DIMENSION P.
D
B
INCHES
DIM MIN
MAX
A
0.160
0.180
B
0.130
0.150
C
0.075
0.095
D
0.077
0.083
H 0.0020 0.0060
J
0.006
0.012
K
0.030
0.050
P
0.020 REF
S
0.205
0.220
C
K
P
H
J
0.089
2.261
0.108
2.743
inches
mm
0.085
2.159
SMB Footprint
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MILLIMETERS
MIN
MAX
4.06
4.57
3.30
3.81
1.90
2.41
1.96
2.11
0.051
0.152
0.15
0.30
0.76
1.27
0.51 REF
5.21
5.59
1SMB10CAT3 Series
Notes
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1SMB10CAT3 Series
Surmetic is a trademark of Semiconductor Components Industries, LLC.
ON Semiconductor and
are 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.
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1SMB10CAT3/D