RClamp2502L RailClamp 2.5V TVS for GbE Applications PROTECTION PRODUCTS - RailClamp Features Description A RailClamp is a low capacitance TVS array designed Transient protection for high-speed data lines to to protect high speed data interfaces. This 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 (1.2/50 s) lines from overvoltage caused by ESD (electrostatic Array of surge rated diodes with internal TVS Diode discharge), CDE (Cable Discharge Events), and Light- Protects up to two I/O lines ning. Low capacitance: <5pF (Line-to-Line) The unique design incorporates surge rated, low High surge capability: 40A (40A (40A (40A (40A (tp=8/20 s) capacitance steering diodes and a TVS diode in a Low operating voltage: 2.5V single package. During transient conditions, the Easy layout steering diodes direct the transient current away from Solid-state silicon-avalanche technology the protected IC. The internal TVS diode clamps the transient voltage to a safe level. The low capacitance Mechanical Characteristics array configuration allows the user to protect up to two JEDEC SO-8 package high-speed data lines. Pb-Free, Halogen Free, RoHS/WEEE Compliant The RClamp 2502L is constructed using Semtechs Lead Finish: Matte tin proprietary EPD process technology. The EPD process Molding compound flammability rating: UL 94V-0 provides low stand-off voltages with significant reduc- Marking : Marking Code, date code tions in leakage current and capacitance over silicon- avalanche diode processes. They feature a true Packaging : Tape and Reel operating voltage of 2.5 volts for superior protection. Applications The RClamp2502L is in a 8-pin SOIC package. The leads are finished with lead-free matte tin. The combi- 10/100/1000 Ethernet Interfaces nation of low clamping voltage, high surge capability, CPE Equipment and low loading capacitance makes the RClamp2502L GPON Systems an ideal solution for protecting GbE systems to the VoIP Phones lightning immunity requirements of GR-1089. Video Surveillance Systems Functional Circuit Diagram Package Configuration 1.27 Pin 1 Pin 8 4.00 6.00 12 Pin 2, 3, 6, 7 5.00 1.75 Pin 4 Pin 5 SO-8 (Max Dimensions in mm) www.semtech.com Revision 10/22/2009 1RClamp2502L PROTECTION PRODUCTS Absolute Maximum Rating Rlating Seymbo Vsalu Unit PPeak Pulse Power (tp = 8/20s) 8s00 Watt pk PIeak Pulse Current (tp = 8/20s) 4A0 PP ESD per IEC 61000-4-2 (Air) V 25 kV ESD ESD per IEC 61000-4-2 (Contact) 15 OTperating Temperature -C40 to +85 J STtorage Temperature -C55 to +150 STG o Electrical Characteristics (T=25 C) RClamp2502L PlarameterSsymboCmondition MlinimuTmypicaMsaximu Unit RVeverse Stand-Off Voltage 2V.5 RWM PVunch-Through Voltage I=72A2V. PT PT SVnap-Back Voltage I=850mA2V. SB SB RIeverse Leakage Current V=12.5V, T=25C A R RWM CVlamping Voltage I = 12A, t = 8/20s 9V.5 C PP p Between pins 1, 8 and 4,5 CVlamping Voltage I = 24A, t = 8/20s 1V2.5 C PP p Between pins 1, 8 and 4,5 CVlamping Voltage I = 40A, t = 8/20s 2V0 C PP p Between pins 1, 8 and 4,5 JCunction Capacitance Between pins 1,8 or 4,5 and 1F0 p j 2,3 V = 0V, f = 1MHz R Between pins 1, 8 and 4,5 5Fp V = 0V, f = 1MHz R www.semtech.com 2009 Semtech Corp. 2