TVS Diode Arrays (SPA® Diodes) Lightning Surge Protection- SR70 Series SR70 Series 70V 40A Diode Array RoHS Pb GREEN Description The SR70 consists of four, low capacitance, rail-to-rail diodes that provide protection against ESD and lightning surge events. These robust diodes can safely absorb up to 40A (tP=8/20μs) and repetitive ESD strikes at the maximum level (Level 4) specified in the IEC 61000-4-2 international standard without performance degradation. Its low loading capacitance makes it ideal for protecting high-speed data lines such as VDSL and VDSL2. Pinout Features SOT-143-4 Vcc GND • Low capacitance of 2.0pF (TYP) per I/O • EFT, IEC61000-4-4, 80A (tp=5/50ns) • Small SOT143 (JEDEC TO253) packaging • Low clamp voltage • Lightning protection, IEC61000-4-5, 40A (tp=8/20µs) I/O 2 I/O 1 • ESD, IEC61000-4-2 , ±30kV contact discharge, ±30kV air discharge Applications Functional Block Diagram • xDSL Lines Equipment • Video Lines • 10/100/1000 Ethernet • Customer Premises Application Example I/O Additional Information Datasheet Resources VCC 1 4 2 3 Samples Life Support Note: Not Intended for Use in Life Support or Life Saving Applications The products shown herein are not designed for use in life sustaining or life saving applications unless otherwise expressly indicated. © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/20/13 I/O TVS Diode Arrays (SPA® Diodes) Lightning Surge Protection- SR70 Series Thermal Information Absolute Maximum Ratings Symbol Parameter Rating Units –55 to 150 °C Maximum Junction Temperature 150 °C Maximum Lead Temperature (Soldering 20-40s) 260 °C Parameter Value Units IPP Peak Current (tp=8/20μs) 40.0 A Storage Temperature Range TOP Operating Temperature –40 to 125 °C °C Storage Temperature TSTOR –55 to 150 CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Electrical Characteristics (TOP=25ºC) Parameter Symbol Reverse Standoff Voltage VRWM Reverse Leakage Current ILEAK Clamp Voltage Test Conditions Dynamic Resistance RDYN ESD Withstand Voltage1 VESD Diode Capacitance1 Typ VR=70V VC 1 Min IPP=1A, tp=8/20µs, Fwd 1.4 Max Units 70 V 5 µA V IPP=10A, tp=8/20µs, Fwd 4.7 V IPP=30A, tp=8/20µs, Fwd 12 V (VC2-VC1)/(IPP2-IPP1) 0.35 Ω IEC61000-4-2 (Contact) ±30 IEC61000-4-2 (Air) ±30 kV kV CI/O-GND Reverse Bias=0V, f=1MHz 2.0 3.0 pF CI/O-I/O Reverse Bias=0V, f=1MHz 1.3 2.0 pF Note: 1. Parameter is guaranteed by design and/or device characterization. Pulse Waveform Capacitance vs. Reverse Bias 110% 100% 2.50 90% I/O - GND 80% I/O - I/O Percent of IPP Capacitance (pF) 2.00 1.50 1.00 70% 60% 50% 40% 30% 20% 0.50 10% 0% 0.00 0.0 0.5 1.0 1.5 2.0 2.5 3.0 DC Bias (V) 3.5 4.0 4.5 5.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 Time (μs) © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/20/13 TVS Diode Arrays (SPA® Diodes) Lightning Surge Protection- SR70 Series Clamping Voltage vs. IPP Product Characteristics 16 14 Clamp Voltage (VC) 12 10 8 Lead Plating Matte Tin Lead Material Copper Alloy Lead Coplanarity 0.0004 inches (0.102mm) Substitute Material Silicon Body Material Molded Epoxy Flammability UL 94 V-0 Notes : 1. All dimensions are in millimeters 2. Dimensions include solder plating. 3. Dimensions are exclusive of mold flash & metal burr. 4. Blo is facing up for mold and facing down for trim/form, i.e. reverse trim/form. 5. Package surface matte finish VDI 11-13. 6 4 2 0 0 5 10 15 20 25 30 35 40 Peak Pulse Current-IPP (A) Soldering Parameters Pb – Free assembly Pre Heat - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C - Time (min to max) (ts) 60 – 180 secs Average ramp up rate (Liquidus) Temp (TL) to peak 3°C/second max TS(max) to TL - Ramp-up Rate 3°C/second max Reflow - Temperature (TL) (Liquidus) 217°C - Temperature (tL) 60 – 150 seconds Peak Temperature (TP) 260+0/-5 °C Time within 5°C of actual peak Temperature (tp) 20 – 40 seconds tP TP Temperature Reflow Condition Critical Zone TL to TP Ramp-up TL TS(max) tL Ramp-do Ramp-down Preheat TS(min) 25 tS time to peak temperature Time Ordering Information Ramp-down Rate 6°C/second max Time 25°C to peak Temperature (TP) 8 minutes Max. Part Number Package Marking Min. Order Qty. 260°C SR70-02CTG SOT143 702C 3000 Do not exceed Part Marking System Part Numbering System SR 70 – 02 C T G G= Green T= Tape & Reel Series Number of Channels © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/20/13 Package C: SOT143-4 702C TVS Diode Arrays (SPA® Diodes) Lightning Surge Protection- SR70 Series Package Dimensions—SOT143 e 3 4 503B E E1 Recommended Pad Layout 0.80 (.032") E 0.80 (.032") 1.00 (.040") 2.20 3.40 (.134") (.087") 3.60 (.140") 1.40 (.055") REF MAX e1 3.40 (.134") 2.20 (.087") 3.60 (.140") REF D A 1.90 (.075") 1.70 (.067") BSC b2 A A1 b SOT143 4 TO-253 Millimeters Min Max A 0.8 1.22 1.40 (.055") MAX A1 0.05 0.15 1.90 (.075") b 0.30 0.50 1.70 (.067") b2 0.76 0.89 BSC c 0.08 0.20 D 2.80 3.04 1.00 (.040") 0.80 (.032") 2.10 2.64 1.20 (.048") E1.00 (.040") E1 1.20 1.40 e 1.92 BSC e1 0.20 BSC L 0.4 0.6 L1 0.550 REF 1.00 (.040") 2 1 Package Pins JEDEC 1.00 (.040") 1.20 (.048") c 0.80 (.032") 1.00 (.040") 1 L Inches Min Max 0.03 0.048 0.002 0.006 0.012 0.020 0.030 0.035 0.003 0.008 0.110 0.120 0.082 0.104 0.047 0.055 0.076 BSC 0.008 BSC 0.016 0.024 0.022 REF L1 Embossed Carrier Tape & Reel Specification—SOT143 Pin 1 Symbol Millimeters A 3.19±0.10 B 2.8±0.10 C 1.31±0.10 d 1.50±0.10 E 1.75±0.10 F 3.50±0.10 P0 4.00±0.10 P 4.00±0.10 P1 2.00±0.10 W 8.00±0.10 User Feeding Direction Notes : 1. All dimensions are in millimeters © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/20/13