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1SMB10CAT3 Series
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 SurmeticTM 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.
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PLASTIC SURFACE MOUNT ZENER OVERVOLTAGE TRANSIENT SUPPRESSORS 10-78 V, 600 W 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 mA Above 10 V UL 497B for Isolated Loop Circuit Protection Response Time is Typically < 1 ns Pb-Free Packages are Available
SMB CASE 403A PLASTIC
MARKING DIAGRAM
YWW xxC Y WW xxC = Year = Work Week = Specific Device Code = (See Table Next Page)
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:
260C for 10 Seconds LEADS: Modified L-Bend providing more contact area to bond pads POLARITY: Polarity band will not be indicated MOUNTING POSITION: Any
ORDERING INFORMATION
Device* 1SMBxxCAT3 1SMBxxCAT3G Package SMB SMB (Pb-Free) Shipping 2500/Tape & Reel 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.
Individual devices are listed on page 3 of this data sheet.
*The "T3" suffix refers to a 13 inch reel.
(c) Semiconductor Components Industries, LLC, 2005
1
January, 2005 - Rev. 6
Publication Order Number: 1SMB10CAT3/D
1SMB10CAT3 Series
MAXIMUM RATINGS
Rating Peak Power Dissipation (Note 1.) @ TL = 25C, Pulse Width = 1 ms DC Power Dissipation @ TL = 75C Measured Zero Lead Length (Note 2.) Derate Above 75C Thermal Resistance from Junction-to-Lead DC Power Dissipation (Note 3.) @ TA = 25C Derate Above 25C Thermal Resistance from Junction-to-Ambient Operating and Storage Temperature Range Symbol PPK PD Value 600 3.0 40 25 0.55 4.4 226 -65 to +150 Unit W W mW/C C/W W mW/C C/W C
RqJL PD RqJA TJ, Tstg
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 1. 10 X 1000 ms, 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.
ELECTRICAL CHARACTERISTICS
(TA = 25C unless otherwise noted) Symbol IPP VC VRWM IR VBR IT Parameter Maximum Reverse Peak Pulse Current Clamping Voltage @ IPP Working Peak Reverse Voltage Maximum Reverse Leakage Current @ VRWM Breakdown Voltage @ IT Test Current IT VC VBR VRWM IR IPP
I
IR VRWM VBR VC IT
V
IPP
Bi-Directional TVS
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1SMB10CAT3 Series
ELECTRICAL CHARACTERISTICS (Devices listed in bold, italic are ON Semiconductor Preferred devices.)
VRWM (Note 1) Volts 10 11 12 13 14 15 16 17 18 20 22 24 26 28 30 33 36 40 43 45 48 51 54 58 60 64 70 75 78 Breakdown Voltage IR @ VRWM mA 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 VBR (Note 2) Volts Min 11.1 12.2 13.3 14.4 15.6 16.7 17.8 18.9 20.0 22.2 24.4 26.7 28.9 31.1 33.3 36.7 40.0 44.4 47.8 50.0 53.3 56.7 60.0 64.4 66.7 71.1 77.8 83.3 86.7 Nom 11.69 12.84 14.00 15.16 16.42 17.58 18.74 19.90 21.06 23.37 25.69 28.11 30.42 32.74 35.06 38.63 42.11 46.74 50.32 52.63 56.11 59.69 63.16 67.79 70.21 74.84 81.90 91.65 91.26 Max 12.27 13.5 14.7 15.9 17.2 18.5 19.7 20.9 22.1 24.5 27.0 29.5 31.9 34.4 36.8 40.6 44.2 49.1 52.8 55.3 58.9 62.7 66.32 71.18 73.72 78.58 85.99 92.07 95.83 @ IT mA 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 VC @ IPP (Note 3) VC Volts 17.0 18.2 19.9 21.5 23.2 24.4 26.0 27.6 29.2 32.4 35.5 38.9 42.1 45.4 48.4 53.3 58.1 64.5 69.4 72.2 77.4 82.4 87.1 93.6 96.8 103 113 121 126 IPP Amps 35.3 33.0 30.2 27.9 25.8 24.0 23.1 21.7 20.5 18.5 16.9 15.4 14.2 13.2 12.4 11.3 10.3 9.3 8.6 8.3 7.7 7.3 6.9 6.4 6.2 5.8 5.3 4.9 4.7
Device 1SMB10CAT3, G* 1SMB11CAT3, G* 1SMB12CAT3, G* 1SMB13CAT3, G* 1SMB14CAT3 1SMB15CAT3, G* 1SMB16CAT3 1SMB17CAT3 1SMB18CAT3 1SMB20CAT3, G* 1SMB22CAT3, G* 1SMB24CAT3 1SMB26CAT3 1SMB28CAT3 1SMB30CAT3, G* 1SMB33CAT3, G* 1SMB36CAT3, G* 1SMB40CAT3, G* 1SMB43CAT3 1SMB45CAT3 1SMB48CAT3 1SMB51CAT3, G* 1SMB54CAT3 1SMB58CAT3 1SMB60CAT3, G* 1SMB64CAT3 1SMB70CAT3 1SMB75CAT3 1SMB78CAT3
Device Marking KXC KZC LEC LGC LKC LMC LPC LRC LTC LVC LXC LZC MEC MGC MKC MMC MPC MRC MTC MVC MXC MZC NEC NGC NKC NMC NPC NRC NTC
1. 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. 2. VBR measured at pulse test current IT at an ambient temperature of 25C. 3. Surge current waveform per Figure 2 and derate per Figure 3 of the General Data - 600 Watt at the beginning of this group. * The "G" suffix indicates Pb-Free package available.
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1SMB10CAT3 Series
100 PPK, PEAK POWER (kW) NONREPETITIVE PULSE WAVEFORM SHOWN IN FIGURE 2 10 tr 10 ms 100 VALUE (%) PEAK VALUE - IPP IPP 2 PULSE WIDTH (tP) IS DEFINED AS THAT POINT WHERE THE PEAK CURRENT DECAYS TO 50% OF IPP.
HALF VALUE - 50 tP
1
0.1
0.1 ms
1 ms
10 ms
100 ms
1 ms
10 ms
0
0
1
2 t, TIME (ms)
3
4
tP, PULSE WIDTH
Figure 1. Pulse Rating Curve
160 PEAK PULSE DERATING IN % OF PEAK POWER OR CURRENT @ T = 25 C A 140 120 100 80 60 40 20 0 0 25 50 75 100 125 150 Vin
Figure 2. Pulse Waveform
TYPICAL PROTECTION CIRCUIT
Zin
LOAD
VL
TA, AMBIENT TEMPERATURE (C)
Figure 3. Pulse Derating Curve
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 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,
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 25C. 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 25C. 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 ms 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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1SMB10CAT3 Series
OVERSHOOT DUE TO INDUCTIVE EFFECTS Vin (TRANSIENT) VL VL
V
Vin (TRANSIENT)
V
Vin td tD = TIME DELAY DUE TO CAPACITIVE EFFECT t
t
Figure 4.
Figure 5.
1 0.7 0.5 DERATING FACTOR 0.3 0.2 0.1 0.07 0.05 0.03 0.02 10 ms 0.01 0.1 0.2 0.5 1 2 5 10 D, DUTY CYCLE (%) 20 50 100 100 ms PULSE WIDTH 10 ms
1 ms
Figure 6. Typical Derating Factor for Duty Cycle
UL RECOGNITION 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 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.
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1SMB10CAT3 Series
OUTLINE DIMENSIONS
SMB CASE 403A-03 ISSUE D
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. D DIMENSION SHALL BE MEASURED WITHIN DIMENSION P. 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 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
S A
D
B
C
K
P
J
H
SOLDERING FOOTPRINT*
2.261 0.089
2.743 0.108
2.159 0.085
SCALE 8:1 mm inches
*For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.
SURMETIC is a trademark of Semiconductor Components Industries, LLC.
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
LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 61312, Phoenix, Arizona 85082-1312 USA Phone: 480-829-7710 or 800-344-3860 Toll Free USA/Canada Fax: 480-829-7709 or 800-344-3867 Toll Free USA/Canada Email: orderlit@onsemi.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2-9-1 Kamimeguro, Meguro-ku, Tokyo, Japan 153-0051 Phone: 81-3-5773-3850 ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder For additional information, please contact your local Sales Representative.
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1SMB10CAT3/D
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