1SMC5.0AT3 Series 1500 Watt Peak Power Zener Transient Voltage Suppressors Unidirectional* The SMC 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 SMC 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: * * * * * * * * * Working Peak Reverse Voltage Range - 5.0 V to 78 V Standard Zener Breakdown Voltage Range - 6.7 V to 91.25 V Peak Power - 1500 Watts @ 1 ms ESD Rating of Class 3 (>16 KV) per Human Body Model Maximum Clamp Voltage @ Peak Pulse Current Low Leakage < 5 A Above 10 V UL 497B for Isolated Loop Circuit Protection Maximum Temperature Coefficient Specified Response Time is Typically < 1 ns http://onsemi.com PLASTIC SURFACE MOUNT ZENER TRANSIENT VOLTAGE SUPPRESSORS 5.0-78 VOLTS 1500 WATT PEAK POWER Cathode Anode SMC CASE 403 PLASTIC Mechanical Characteristics: CASE: Void-free, transfer-molded, thermosetting plastic FINISH: All external surfaces are corrosion resistant and leads are MARKING DIAGRAM readily solderable MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES: YWW Gxx 260C for 10 Seconds LEADS: Modified L-Bend providing more contact area to bond pads POLARITY: Cathode indicated by molded polarity notch MOUNTING POSITION: Any Y WW Gxx MAXIMUM RATINGS = Year = Work Week = Specific Device Code = (See Table on Page 3) Please See the Table on the Following Page ORDERING INFORMATION Device 1SMCxxxAT3 Package Shipping SMC 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. *Bidirectional devices will not be available in this series. The "T3" suffix refers to a 13 inch reel. Semiconductor Components Industries, LLC, 2001 May, 2001 - Rev. 3 1 Publication Order Number: 1SMC5.0AT3/D 1SMC5.0AT3 Series MAXIMUM RATINGS Rating Symbol Value Unit Peak Power Dissipation (Note 1.) @ TL = 25C, Pulse Width = 1 ms PPK 1500 W DC Power Dissipation @ TL = 75C Measured Zero Lead Length (Note 2.) Derate Above 75C Thermal Resistance from Junction to Lead PD 4.0 W RJL 54.6 18.3 mW/C C/W W mW/C C/W DC Power Dissipation (Note 3.) @ TA = 25C Derate Above 25C Thermal Resistance from Junction to Ambient PD RJA 0.75 6.1 165 Forward Surge Current (Note 4.) @ TA = 25C IFSM 200 A TJ, Tstg -65 to +150 C Operating and Storage Temperature Range 1. 2. 3. 4. 10 X 1000 s, non-repetitive 1 square copper pad, FR-4 board FR-4 board, using ON Semiconductor minimum recommended footprint, as shown in 403 case outline dimensions spec. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum. ELECTRICAL CHARACTERISTICS (TA = 25C unless I otherwise noted, VF = 3.5 V Max @ IF = 100 A) (Note 5.) Symbol IPP Maximum Reverse Peak Pulse Current VC Clamping Voltage @ IPP VRWM IR VBR IF Parameter VC VBR VRWM Working Peak Reverse Voltage IR VF IT Maximum Reverse Leakage Current @ VRWM Breakdown Voltage @ IT IT Test Current IF Forward Current VF Forward Voltage @ IF IPP Uni-Directional TVS 5. 1/2 sine wave or equivalent, PW = 8.3 ms non-repetitive duty cycle http://onsemi.com 2 V 1SMC5.0AT3 Series ELECTRICAL CHARACTERISTICS (TA = 25C unless otherwise noted) Device Device Marking Breakdown Voltage VRWM (Note 6.) IR @ VRWM Volts A Min Nom VBR Volts (Note 7.) VC @ IPP (Note 8.) @ IT VC IPP Max mA Volts Amps 1SMC5.0AT3 1SMC6.0AT3 1SMC6.5AT3 1SMC7.0AT3 GDE GDG GDK GDM 5.0 6.0 6.5 7.0 1000 1000 500 200 6.4 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 12 163 145.6 133.9 125 1SMC7.5AT3 1SMC8.0AT3 1SMC8.5AT3 1SMC9.0AT3 GDP GDR GDT GDV 7.5 8.0 8.5 9.0 100 50 25 10 8.33 8.89 9.44 10 8.77 9.36 9.92 10.55 9.21 9.83 10.4 11.1 1 1 1 1 12.9 13.6 14.4 15.4 116.3 110.3 104.2 97.4 1SMC10AT3 1SMC11AT3 1SMC12AT3 1SMC13AT3 GDX GDZ GEE GEG 10 11 12 13 5 5 5 5 11.1 12.2 13.3 14.4 11.7 12.85 14 15.15 12.3 13.5 14.7 15.9 1 1 1 1 17 18.2 19.9 21.5 88.2 82.4 75.3 69.7 1SMC14AT3 1SMC15AT3 1SMC16AT3 1SMC17AT3 GEK GEM GEP GER 14 15 16 17 5 5 5 5 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 1 1 1 23.2 24.4 26 27.6 64.7 61.5 57.7 53.3 1SMC18AT3 1SMC20AT3 1SMC22AT3 1SMC24AT3 GET GEV GEX GEZ 18 20 22 24 5 5 5 5 20 22.2 24.4 26.7 21.05 23.35 25.65 28.1 22.1 24.5 26.9 29.5 1 1 1 1 29.2 32.4 35.5 38.9 51.4 46.3 42.2 38.6 1SMC26AT3 1SMC28AT3 1SMC30AT3 1SMC33AT3 GFE GFG GFK GFM 26 28 30 33 5 5 5 5 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 1 1 1 42.1 45.4 48.4 53.3 35.6 33 31 28.1 1SMC36AT3 1SMC40AT3 1SMC43AT3 1SMC45AT3 GFP GFR GFT GFV 36 40 43 45 5 5 5 5 40 44.4 47.8 50 42.1 46.75 50.3 52.65 44.2 49.1 52.8 55.3 1 1 1 1 58.1 64.5 69.4 72.2 25.8 32.2 21.6 20.6 1SMC48AT3 1SMC51AT3 1SMC54AT3 1SMC58AT3 GFX GFZ GGE GGG 48 51 54 58 5 5 5 5 53.3 56.7 60 64.4 56.1 59.7 63.15 67.8 58.9 62.7 66.3 71.2 1 1 1 1 77.4 82.4 87.1 93.6 19.4 18.2 17.2 16 1SMC60AT3 1SMC64AT3 1SMC70AT3 1SMC75AT3 1SMC78AT3 GGK GGM GGP GGR GGT 60 64 70 75 78 5 5 5 5 5 66.7 71.1 77.8 83.3 86.7 70.2 74.85 81.9 87.7 91.25 73.7 78.6 86 92.1 95.8 1 1 1 1 1 96.8 103 113 121 126 15.5 14.6 13.3 12.4 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. VBR measured at pulse test current IT at an ambient temperature of 25C. 8. Surge current waveform per Figure 2 and derate per Figure 3 of the General Data - 1500 Watt at the beginning of this group. http://onsemi.com 3 1SMC5.0AT3 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 s 100 PEAK VALUE - IPP VALUE (%) Ppk, PEAK POWER (kW) 100 10 HALF VALUE 50 IPP 2 tP 1 0.1 s 1 s 10 s 100 s 1 ms 0 10 ms 0 1 2 3 4 tP, PULSE WIDTH t, TIME (ms) Figure 1. Pulse Rating Curve Figure 2. Pulse Waveform 1000 140 IT, TEST CURRENT (AMPS) PEAK PULSE DERATING IN % OF PEAK POWER OR CURRENT @ TA = 25 C 160 120 100 80 60 40 20 0 0 25 50 75 100 125 150 500 VBR(NOM)=6.8TO13V 20V 43V 24V 75V TL=25C tP=10s 200 100 120V 50 180V 20 10 5 2 1 0.3 0.5 0.7 1 2 3 5 7 10 20 30 TA, AMBIENT TEMPERATURE (C) VBR, INSTANTANEOUS INCREASE IN VBR ABOVE VBR (NOM) (VOLTS) Figure 3. Pulse Derating Curve Figure 4. Dynamic Impedance 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 http://onsemi.com 4 1SMC5.0AT3 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 5. 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 6. Minimizing this overshoot is very important in the application, since the main purpose for adding a transient suppressor is to clamp voltage spikes. The SMC 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 25C. If the duty cycle increases, the peak power must be reduced as indicated by the curves of Figure 7. 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 7 appear to be in error as the 10 ms pulse has a higher derating factor than the 10 s pulse. However, when the derating factor for a given pulse of Figure 7 is multiplied by the peak power value of Figure 1 for the same pulse, the results follow the expected trend. http://onsemi.com 5 1SMC5.0AT3 Series TYPICAL PROTECTION CIRCUIT Zin LOAD Vin V V Vin (TRANSIENT) VL OVERSHOOT DUE TO INDUCTIVE EFFECTS Vin (TRANSIENT) VL VL Vin td tD = TIME DELAY DUE TO CAPACITIVE EFFECT t t Figure 5. Figure 6. 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 s 0.02 10 s 0.01 0.1 0.2 0.5 1 2 5 10 D, DUTY CYCLE (%) 20 50 100 Figure 7. Typical Derating Factor for Duty Cycle http://onsemi.com 6 1SMC5.0AT3 Series OUTLINE DIMENSIONS Transient Voltage Suppressors - Surface Mounted 1500 Watt Peak Power SMC CASE 403-03 ISSUE B S A D NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. D DIMENSION SHALL BE MEASURED WITHIN DIMENSION P. B INCHES DIM MIN MAX A 0.260 0.280 B 0.220 0.240 C 0.075 0.095 D 0.115 0.121 H 0.0020 0.0060 J 0.006 0.012 K 0.030 0.050 P 0.020 REF S 0.305 0.320 C K P J H 0.171 4.343 0.150 3.810 0.110 2.794 inches mm SMC Footprint http://onsemi.com 7 MILLIMETERS MIN MAX 6.60 7.11 5.59 6.10 1.90 2.41 2.92 3.07 0.051 0.152 0.15 0.30 0.76 1.27 0.51 REF 7.75 8.13 1SMC5.0AT3 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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