P6SMB11CAT3G Series, SZP6SMB11CAT3G Series 600 Watt Peak Power Zener Transient Voltage Suppressors Littelfuse.com 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 the Littelfuse exclusive, cost-effective, highly reliable 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. PLASTIC SURFACE MOUNT ZENER OVERVOLTAGE TRANSIENT SUPPRESSORS 9.4-78 VOLTS 600 WATT PEAK POWER Features * * * * * * * * * * Working Peak Reverse Voltage Range - 9.4 to 77.8 V Standard Zener Breakdown Voltage Range - 11 to 91 V Peak Power - 600 W @ 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 SZ Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q101 Qualified and PPAP Capable These are Pb-Free Devices 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 SMB CASE 403A PLASTIC MARKING DIAGRAM AYWW xxC G G xxC = Device Code A = Assembly Location Y = Year WW = Work Week G = Pb-Free Package (Note: Microdot may be in either location) ORDERING INFORMATION Device Package Shipping P6SMBxxCAT3G SMB (Pb-Free) 2,500 / Tape & Reel SZP6SMBxxCAT3G SMB (Pb-Free) 2,500 / Tape & Reel The "T3" suffix refers to a 13 inch reel. *Please see P6SMB6.8AT3 to P6SMB200AT3 for Unidirectional devices. Specifications subject to change without notice. (c) 2016 Littelfuse, Inc. September 19, 2016 - Rev. 13 1 Publication Order Number: P6SMB11CAT3/D P6SMB11CAT3G Series, SZP6SMB11CAT3G Series MAXIMUM RATINGS Symbol Value Unit Peak Power Dissipation (Note 1) @ TL = 25C, Pulse Width = 1 ms Rating PPK 600 W DC Power Dissipation @ TL = 75C Measured Zero Lead Length (Note 2) Derate Above 75C Thermal Resistance, Junction-to-Lead PD 3.0 40 25 W mW/C C/W W mW/C C/W C RqJL DC Power Dissipation (Note 3) @ TA = 25C Derate Above 25C Thermal Resistance, Junction-to-Ambient PD RqJA 0.55 4.4 226 Operating and Storage Temperature Range TJ, Tstg -65 to +150 Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, 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 Littelfuse minimum recommended footprint, as shown in 403A case outline dimensions spec. ELECTRICAL CHARACTERISTICS IPP (TA = 25C unless otherwise noted) Symbol Parameter IPP Maximum Reverse Peak Pulse Current VC Clamping Voltage @ IPP VRWM IR VBR IT QVBR I IT VC VBR VRWM IR Working Peak Reverse Voltage IR V RWM VBR VC IT V Maximum Reverse Leakage Current @ VRWM Breakdown Voltage @ IT IPP Test Current Bi-Directional TVS Maximum Temperature Coefficient of VBR ELECTRICAL CHARACTERISTICS (Devices listed in bold, italic are Littelfuse Preferred devices.) Device* Device Marking VC @ IPP (Note 6) Breakdown Voltage VRWM (Note 4) IR @ VRWM Volts mA Min Nom @ IT VC IPP QVBR Ctyp (Note 7) Max mA Volts Amps %/C pF VBR Volts (Note 5) P6SMB11CAT3G P6SMB12CAT3G 11C 12C 9.4 10.2 5 5 10.5 11.4 11.05 12 11.6 12.6 1 1 15.6 16.7 38 36 0.075 0.078 865 800 P6SMB15CAT3G P6SMB16CAT3G P6SMB18CAT3G P6SMB20CAT3G 15C 16C 18C 20C 12.8 13.6 15.3 17.1 5 5 5 5 14.3 15.2 17.1 19 15.05 16 18 20 15.8 16.8 18.9 21 1 1 1 1 21.2 22.5 25.2 27.7 28 27 24 22 0.084 0.086 0.088 0.09 645 610 545 490 P6SMB22CAT3G P6SMB24CAT3G P6SMB27CAT3G P6SMB30CAT3G 22C 24C 27C 30C 18.8 20.5 23.1 25.6 5 5 5 5 20.9 22.8 25.7 28.5 22 24 27.05 30 23.1 25.2 28.4 31.5 1 1 1 1 30.6 33.2 37.5 41.4 20 18 16 14.4 0.09 0.094 0.096 0.097 450 415 370 335 P6SMB33CAT3G P6SMB36CAT3G P6SMB39CAT3G P6SMB43CAT3G 33C 36C 39C 43C 28.2 30.8 33.3 36.8 5 5 5 5 31.4 34.2 37.1 40.9 33.05 36 39.05 43.05 34.7 37.8 41 45.2 1 1 1 1 45.7 49.9 53.9 59.3 13.2 12 11.2 10.1 0.098 0.099 0.1 0.101 305 280 260 240 P6SMB47CAT3G P6SMB51CAT3G P6SMB56CAT3G P6SMB62CAT3G 47C 51C 56C 62C 40.2 43.6 47.8 53 5 5 5 5 44.7 48.5 53.2 58.9 47.05 51.05 56 62 49.4 53.6 58.8 65.1 1 1 1 1 64.8 70.1 77 85 9.3 8.6 7.8 7.1 0.101 0.102 0.103 0.104 220 205 185 170 P6SMB68CAT3G P6SMB82CAT3G 68C 82C 58.1 70.1 5 5 64.6 77.9 68 82 71.4 86.1 1 1 92 113 6.5 5.3 0.104 0.105 155 130 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 25C. 6. Surge current waveform per Figure 2 and derate per Figure 3 of the General Data - 600 Watt at the beginning of this group. 7. Bias Voltage = 0 V, F = 1 MHz, TJ = 25C *Include SZ-prefix devices where applicable. Specifications subject to change without notice. (c) 2016 Littelfuse, Inc. September 19, 2016 - Rev. 13 2 Publication Order Number: P6SMB11CAT3/D P6SMB11CAT3G Series, SZP6SMB11CAT3G 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 ms 100 10 PEAK VALUE - IPP VALUE (%) PP, PEAK POWER (kW) 100 I HALF VALUE - PP 2 50 1 tP 0.1 0.1 ms 1 ms 10 ms 100 ms tP, PULSE WIDTH 1 ms 0 10 ms 0 1 Figure 1. Pulse Rating Curve 1000 5 P6SMB11CAT3G 140 C, CAPACITANCE (pF) P6SMB18CAT3G 120 100 80 60 40 P6SMB47CAT3G 100 P6SMB91CAT3G 10 TJ = 25C f = 1 MHz 20 0 4 Figure 2. Pulse Waveform 160 PEAK PULSE DERATING IN % OF PEAK POWER OR CURRENT @ TA = 25 C 2 3 t, TIME (ms) 0 25 50 75 100 125 150 1 1 10 BIAS VOLTAGE (VOLTS) TA, AMBIENT TEMPERATURE (C) Figure 3. Pulse Derating Curve 100 Figure 4. Typical Junction Capacitance vs. Bias Voltage TYPICAL PROTECTION CIRCUIT Zin LOAD Vin Specifications subject to change without notice. (c) 2016 Littelfuse, Inc. September 19, 2016 - Rev. 13 3 VL Publication Order Number: P6SMB11CAT3/D P6SMB11CAT3G Series, SZP6SMB11CAT3G Series APPLICATION NOTES Response Time 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, minimum lead lengths and placing the V 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. V Vin (TRANSIENT) 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 ms 0.02 0.01 10 ms 0.1 0.2 0.5 1 2 5 10 D, DUTY CYCLE (%) 20 50 100 Figure 7. Typical Derating Factor for Duty Cycle Specifications subject to change without notice. (c) 2016 Littelfuse, Inc. September 19, 2016 - Rev. 13 4 Publication Order Number: P6SMB11CAT3/D P6SMB11CAT3G Series, SZP6SMB11CAT3G Series 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 (QVGQ2) under the UL standard for safety 497B and File #E128662 . 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 Specifications subject to change without notice. (c) 2016 Littelfuse, Inc. September 19, 2016 - Rev. 13 5 Publication Order Number: P6SMB11CAT3/D P6SMB11CAT3G Series, SZP6SMB11CAT3G Series PACKAGE DIMENSIONS SMB CASE 403A-03 ISSUE J HE NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION b SHALL BE MEASURED WITHIN DIMENSION L1. E b DIM A A1 b c D E HE L L1 D POLARITY INDICATOR OPTIONAL AS NEEDED MIN 1.95 0.05 1.96 0.15 3.30 4.06 5.21 0.76 MILLIMETERS NOM MAX 2.30 2.47 0.10 0.20 2.03 2.20 0.23 0.31 3.56 3.95 4.32 4.60 5.44 5.60 1.02 1.60 0.51 REF MIN 0.077 0.002 0.077 0.006 0.130 0.160 0.205 0.030 INCHES NOM 0.091 0.004 0.080 0.009 0.140 0.170 0.214 0.040 0.020 REF MAX 0.097 0.008 0.087 0.012 0.156 0.181 0.220 0.063 A L L1 A1 c SOLDERING FOOTPRINT 2.261 0.089 2.743 0.108 2.159 0.085 SCALE 8:1 mm inches Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. Specifications subject to change without notice. (c) 2016 Littelfuse, Inc. September 19, 2016 - Rev. 13 6 Publication Order Number: P6SMB11CAT3/D