RClamp2574N High Power TVS for Ethernet Interfaces PROTECTION PRODUCTS - RailClamp Features Description RailClamp TVS diodes are specifically designed to Transient protection for high-speed data lines to protect sensitive components which are connected to IEC 61000-4-2 (ESD) 30kV (air), 30kV (contact) high-speed data and transmission lines from overvolt- IEC 61000-4-4 (EFT) 40A (5/50ns) age caused by ESD (electrostatic discharge), CDE IEC 61000-4-5 (Lightning) 40A (8/20 s) (cable discharge events), and EFT (electrical fast Array of surge rated diodes with internal TVS Diode transients). Small package saves board space The unique design incorporates surge rated, low Protects two line pairs capacitance steering diodes and a TVS diode in a Low capacitance for high-speed interfaces single package. The RClamp 2574N is designed to Low variation in capacitance vs. bias voltage replace up to two components for board level GbE Low clamping voltage protection. Each device is designed to protect two line Low operating voltage: 2.5V pairs. This is accomplished by routing traces through Solid-state silicon-avalanche technology the device. When connected in this fashion, the device can withstand a high level of surge current (40A, 8/ Mechanical Characteristics 20us) while maintaining a low loading capacitance of SLP3020N10 10L package less than 5pF. The high surge capability means it can Pb-Free, Halogen Free, RoHS/WEEE Compliant be used in high threat environments in applications Nominal Dimensions: 3.0 x 2.0 x 0.60 mm such as Gigabit Ethernet, telecommunication lines, and LVDS interfaces. Lead Finish: NiPdAu Molding compound flammability rating: UL 94V-0 The RClamp 2574N is constructed using Semtechs Marking : Marking code + Date code proprietary EPD process technology. The EPD process provides low stand-off voltages with significant reduc- Packaging : Tape and Reel tions in leakage current and capacitance over silicon- avalanche diode processes. It features a true operat- Applications ing voltage of 2.5 volts for superior protection. 10/100/1000 Ethernet The RClamp2574N is in a 10-pin SLP3020N10 pack- Central Office Equipment age. It measures 3.0 x 2.0 x 0.60mm. The leads are LVDS Interfaces finished with lead-free NiPdAu. MagJacks / Integrated Magnetics Notebooks / Desktops / Servers Schematic Pin Configuration Pin 1 Pin 4 LINE 1 In LINE 3 In Line 1 In 1 10 Line 1 Out GND Line 2 In Line 2 Out Pin 10 Pin 7 LINE 1 Out LINE 3 Out Pin 2 Pin 5 GND GND GND LINE 2 In LINE 4 In Line 3 In Line 3 Out GND Line 4 In 5 6 Line 4 Out Pin 9 Pin 6 LINE 2 Out LINE 4 Out Center Tabs and Pins 3, 8 Top View www.semtech.com Revision 10/20/2010 1RClamp2574N PROTECTION PRODUCTS Absolute Maximum Rating Rlating Seymbo Vsalu Unit 1 Peak Pulse Power (tp = 8/20s) P 1s000 Watt pk 1 Peak Pulse Current (tp = 8/20s) I 4A0 PP ESD per IEC 61000-4-2 (Air) V +/-30 kV ESD ESD per IEC 61000-4-2 (Contact) +/-30 OTperating Temperature -C55 to +85 J STtorage Temperature -C55 to +150 STG o Electrical Characteristics (T=25 C) PlarameterSsymboCmondition MlinimuTmypicaMsaximu Unit RVeverse Stand-Off Voltage 2V.5 RWM PVunch-Through Voltage I=72A2V. PT PT SVnap-Back Voltage I=050mA2V. SB SB RIeverse Leakage Current V=52.5V, T=25C 0A. R RWM CVlamping Voltage I = 1A, t = 8/20s 4V.5 C PP p Any I/O to Ground 2 Clamping Voltage V I = 10A, t = 8/20s 7V.5 C PP p Any 1 I/O to Ground 2 Clamping Voltage V I = 25A, t = 8/20s 1V2 C PP p Any I/O to Ground 1,2 Clamping Voltage V I = 40A, t = 8/20s 2V0 C PP p Line-to-Line, two I/O pins connected together on each line (Note 1) 2 Junction Capacitance C V = 0V, f = 1MHz 35.75 pF j R Any I/O to Ground V = 0V, f = 1MHz 1F.7 p R Between I/O pins Notes: 1) Ratings with 2 pins connected together per the recommended configuration (ie pin 1 connected to pin 10, pin 2 connected to pin 9, pin 4 connected to pin 7, and pin 5 connected to pin 6). 2) Guaranteed by design (not production tested) www.semtech.com 2010 Semtech Corp. 2