SR05 RailClamp Low Capacitance TVS Diode Array PROTECTION PRODUCTS Features Description RailClamps are surge rated diode arrays designed to ESD protection to protect high speed data interfaces. The SR series has IEC 61000-4-2 (ESD) 15kV (air), 8kV (contact) been specifically designed to protect sensitive compo- IEC 61000-4-4 (EFT) 40A (5/50ns) nents which are connected to data and transmission IEC 61000-4-5 (Lightning) 24A (8/20s) lines from overvoltage caused by electrostatic dis- Array of surge rated diodes with internal TVS Diode charge (ESD), electrical fast transients (EFT), and Protects two I/O lines lightning. Low capacitance (<10pF) for high-speed interfaces The unique design of the SR series devices incorpo- Low clamping voltage rates four surge rated, low capacitance steering diodes Low operating voltage: 5.0V and a TVS diode in a single package. During transient Solid-state silicon-avalanche technology conditions, the steering diodes direct the transient to either the positive side of the power supply line or to Mechanical Characteristics ground. The internal TVS diode prevents over-voltage JEDEC SOT-143 package on the power line, protecting any downstream compo- UL 497B listed nents. Molding compound flammability rating: UL 94V-0 The low capacitance array configuration allows the user Marking : R05 to protect two high-speed data or transmission lines. Packaging : Tape and Reel per EIA 481 The low inductance construction minimizes voltage overshoot during high current surges. Applications USB Power & Data Line Protection Ethernet 10BaseT 2 I C Bus Protection Video Line Protection T1/E1 secondary IC Side Protection Portable Electronics Microcontroller Input Protection WAN/LAN Equipment ISDN S/T Interface Circuit Diagram Schematic & PIN Configuration Pin 4 4 1 Pin 2 Pin 3 23 Pin 1 SOT-143 (Top View) www.semtech.com Revision 02/18/05 1SR05 PROTECTION PRODUCTS Absolute Maximum Rating Rlating Seymbo Vsalu Unit PPeak Pulse Power (tp = 8/20s) 5s00 Watt pk PIeak Pulse Current (tp = 8/20s) 2A5 PP Peak Forward Voltage (I=V1A, tp=8/20s) 1V.5 F FP LTead Soldering Temperature 2C60 (10 sec.) L OTperating Temperature -C55 to +125 J STtorage Temperature -C55 to +150 STG Electrical Characteristics SR05 Plarameter SsymboCmondition MlinimuTmypicaMsaximu Unit RVeverse Stand-Off Voltage 5V RWM RVeverse Breakdown Voltage I=61mA V BR t RIeverse Leakage Current V=55V, T=25C A R RWM CVlamping Voltage I=81A, tp = 8/20s 9V. C PP CVlamping Voltage I=210A, tp = 8/20s 1V C PP CVlamping Voltage I=025A, tp = 8/20s 2V C PP JCunction Capacitance Between I/O pins and 601Fp j Ground V = 0V, f = 1MHz R Between I/O pins 3Fp V = 0V, f = 1MHz R www.semtech.com 2005 Semtech Corp. 2