TVS Diode Arrays (SPA(R) Diodes) Diodes) General Purpose ESD Protection - SM712 SM712 Series 600W Asymmetrical TVS Diode Array RoHS Pb GREEN Description The SM712 TVS Diode Array is designed to protect RS-485 applications with asymmetrical working voltages (-7V to 12V) from damage due to electrostatic discharge (ESD), electrical fast transients (EFT), and lightning induced surges. The SM712 can absorb repetitive ESD strikes above the maximum level specified in the IEC 61000-4-2 international standard without performance degradation and safely dissipate up to 19A of 8/20us induced surge current (IEC61000-4-5 2nd edition) with very low clamping voltages. Pinout and Functional Block Diagram 2 Features 1 12V 12V 7V 7V * RoHS compliant and lead-free * Working Voltages: -7V to 12V * ESD, IEC 61000-4-2, 30kV contact, 30kV air * Low clamping voltage * EFT, IEC 61000-4-4, 50A (5/50ns) * AEC-Q101 Qualified * Low leakage current * Moisture Sensitivity Level (MSL-1) * Lightning, IEC 610004-5 2nd edition, 19A (tP=8/20s) Applications 3 * RS-485 * Security Systems * Fieldbus * Modbus * AutomatedT eller Machines (ATMs) Life Support Note: * Profibus * Lighting Control - DALI Not Intended for Use in Life Support or Life Saving Applications * DMX512 * Communication Equipments The products shown herein are not designed for use in life sustaining or life saving applications unless otherwise expressly indicated. RS-485 Application Example Additional Information RS-485 Port Receiver A B Datasheet Resources IC Samples SM712 GND (c) 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/09/17 TVS Diode Arrays (SPA(R)(R)Diodes) Diodes) General Purpose ESD Protection - SM712 Absolute Maximum Ratings Value Units PPk Symbol Peak Pulse Power (tp=8/20s) Parameter 600 W IPP Peak Pulse Current (tp=8/20s) 19 A TOP Operating Temperature -40 to 125 C TSTOR Storage Temperature -55 to 150 C Notes: CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the component. This is a stress only rating and operation of the component at these or any other conditions above those indicated in the operational sections of this specification is not implied. SM712 Electrical Characteristics (TOP=25C) Parameter Symbol Reverse Standoff Voltage Test Conditions VRWM Reverse Breakdown Voltage IR=1mA, Pin 3 to Pin 1 or Pin 2 7.5 IR=1mA, Pin 1 or Pin 2 to Pin 3 13.3 VC Dynamic Resistance RDYN ESD Withstand Voltage1 VESD 1 Units 7.0 V 12.0 V V V 20 A A VR=12V 1 IPP=1A, tp=8/20s, Pin 1 or Pin 2 to Pin 3 19 V IPP=1A, tp=8/20s, Pin 3 to Pin 1 or Pin 2 11 V IPP=19A, tp=8/20s, Pin 1 or Pin 2 to Pin 3 31 V IPP=19A, tp=8/20s, Pin 3 to Pin 1 or Pin 2 19 V (VC2 - VC1) / (IPP2 - IPP1) 0.5 IEC 61000-4-2 (Contact Discharge) 30 kV IEC 61000-4-2 (Air Discharge) 30 kV Reverse Bias=0V, f=1MHz; Pin 1 or Pin 2 to Pin 3 CI/O-GND Diode Capacitance1 Max VR=7V ILEAK Clamp Voltage1 Typ IR1A, Pin 1 or Pin 2 to Pin 3 VR Leakage Current Min IR1A, Pin 3 to Pin 1 or Pin 2 75 pF Notes : 1. Parameter is guaranteed by design and/or device characterization. Clamping Voltage vs. IPP 80 35 70 30 Clamp Voltage (VC ) Capacitance (pF) Capacitance vs. Reverse Bias 60 50 40 30 20 Pin 1 or Pin 2 to Pin 3 20 15 Pin 3 to Pin 1 or Pin 2 10 10 0 25 5 0 2 4 6 Bias Voltage (V) 8 10 12 0 0 2 4 6 8 10 12 14 16 18 20 Peak Pulse Current-IPP (A) (c) 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/09/17 TVS Diode Arrays (SPA(R) Diodes) Diodes) General Purpose ESD Protection - SM712 Non-Repetitive Peak Pulse Power vs. Pulse Time Power Derating Curve 110 10 90 % of Rated Power I PP Peak Pulse Power - P pk (kW) 100 1 0.1 80 70 60 50 40 30 20 10 0 0.01 0.1 1 10 100 1000 Pulse Duration - t p (s) 0 25 50 75 100 125 150 Ambient Temperature - T A (oC) Pulse Waveform 110% 100% 90% Percent of IPP 80% 70% 60% 50% 40% 30% 20% 10% 0% 0.0 5.0 10.0 15.0 20.0 25.0 30.0 Time (s) Soldering Parameters Pre Heat Pb - Free assembly - Temperature Min (Ts(min)) 150C - Temperature Max (Ts(max)) 200C - Time (min to max) (ts) 60 - 180 secs Average ramp up rate (Liquidus) Temp (TL) to peak 3C/second max TS(max) to TL - Ramp-up Rate 3C/second max Reflow - Temperature (TL) (Liquidus) 217C - Temperature (tL) 60 - 150 seconds Peak Temperature (TP) 260+0/-5 C Time within 5C of actual peak Temperature (tp) 20 - 40 seconds Ramp-down Rate 6C/second max Time 25C to peak Temperature (TP) 8 minutes Max. Do not exceed 260C (c) 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/09/17 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 TVS Diode Arrays (SPA(R)(R)Diodes) Diodes) General Purpose ESD Protection - SM712 Part Marking System Part Numbering System SM 712 - 02 H T G TVS Diode Arrays (SPA(R) Diodes) Series Working Voltage 712 G= Green T= Tape & Reel Package H: SOT23-3 Number of Channels Ordering Information Part Number Package Marking Min. Order Qty. SM712-02HTG SOT23-3 712 3000 Package Dimensions -- SOT23-3 b 3 SOT23-3 Pins 3 JEDEC 502B 1 Package E1 E Recommended Pad Layout Max A 0.89 1.12 0.035 0.044 A1 0.01 0.1 0.0004 0.004 0.3 0.5 0.012 0.020 0.08 0.2 0.003 0.008 M P e1 D A M P A1 C N L1 0 b 0 Inches Min 2 e TO-236 Millimeters c N Min Max D 2.8 3.04 0.110 0.120 E 2.1 2.64 0.083 0.104 E1 1.2 1.4 0.047 0.055 e 0.95 BSC 0.038 BSC e1 1.90 BSC 0.075 BSC L1 0.54 REF 0.021 REF M - 2.29 - .090 N - 0.95 - 0.038 O - 0.78 - .030TYP P - 0.78 - .030TYP (c) 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/09/17 TVS Diode Arrays (SPA(R) Diodes) Diodes) General Purpose ESD Protection - SM712 Embossed Carrier Tape & Reel Specification -- SOT23-3 Symbol 8mm TAPE AND REEL GENERAL INFORMATION 1. 3000 PIECES PER REEL. 2. ORDER IN MULTIPLES OF FULL REELS ONLY. 3. MEETS EIA-481 REVISION "A" SPECIFICATIONS. ACCESS HOLE 14.4mm SOT23-3 (8mm POCKET PITCH) 13mm 180mm 60mm USER DIRECTION OF FEED Inches Min Max Min Max E 1.65 1.85 0.065 0.073 F 3.40 3.60 0.134 0.142 P2 1.90 2.10 0.075 0.083 D 1.40 1.60 0.055 0.063 P0 3.90 4.10 0.154 0.161 W 7.70 8.30 0.303 0.327 P 3.90 4.10 0.154 0.161 A0 3.05 3.25 0.120 0.128 B0 2.67 2.87 0.105 0.113 K0 1.12 1.32 0.044 0.052 t 0.22 0.24 0.009 0.009 PIN 1 8.4mm Millimetres COVER TAPE Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics. (c) 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 10/09/17