RClamp2574NQ High Power TVS for Ethernet Interfaces PROTECTION PRODUCTS - RailClamp Description Features RailClamp TVS diodes are specifically designed to Transient protection for high-speed data lines to protect sensitive components which are connected to IEC 6IEC 6IEC 6IEC 6IEC 611111000-4-2 (ESD) 30kV (air), 30kV (contact)000-4-2 (ESD) 30kV (air), 30kV (contact)000-4-2 (ESD) 30kV (air), 30kV (contact)000-4-2 (ESD) 30kV (air), 30kV (contact)000-4-2 (ESD) 30kV (air), 30kV (contact) IEC 6IEC 6IEC 6IEC 6IEC 611111000-4-4 (EFT) 40A (5/50ns)000-4-4 (EFT) 40A (5/50ns)000-4-4 (EFT) 40A (5/50ns)000-4-4 (EFT) 40A (5/50ns)000-4-4 (EFT) 40A (5/50ns) high-speed data and transmission lines from overvolt- IEC 6IEC 6IEC 6IEC 6IEC 611111000-4-5 (Lightning) 40A (8/20s)000-4-5 (Lightning) 40A (8/20s)000-4-5 (Lightning) 40A (8/20s)000-4-5 (Lightning) 40A (8/20s)000-4-5 (Lightning) 40A (8/20s) age caused by ESD (electrostatic discharge), CDE Array of surge rated diodes with internal TVS Diode (cable discharge events), and EFT (electrical fast transients). Small package saves board space Protects two line pairs The unique design incorporates surge rated, low Low capacitance for high-speed interfaces capacitance steering diodes and a TVS diode in a single package. The RClamp 2574NQ 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 Qualified to AEC-Q100 Grade1 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 Mechanical Characteristics (40A, 8/20us) while maintaining a low loading capaci- SLP3020N10 10L package tance of less than 5pF. The high surge capability Pb-Free, Halogen Free, RoHS/WEEE Compliant means it can be used in high threat environments in Nominal Dimensions: 3.0 x 2.0 x 0.60 mm applications such as Gigabit Ethernet, telecommunica- Lead Finish: NiPdAu tion lines, and LVDS interfaces. Molding compound flammability rating: UL 94V-0 The RClamp 2574NQ is constructed using Semtechs Marking : Marking code + Date code proprietary EPD process technology. The EPD process Packaging : Tape and Reel provides low stand-off voltages with significant reduc- tions in leakage current and capacitance over silicon- Applications avalanche diode processes. It features a true operat- 10/100/1000 Ethernet ing voltage of 2.5 volts for superior protection. Central Office Equipment The RClamp2574NQ is in a 10-pin SLP3020N10 LVDS Interfaces package. It measures 3.0 x 2.0 x 0.60mm. The leads MagJacks / Integrated Magnetics are finished with lead-free NiPdAu. Notebooks / Desktops / Servers RClamp 2574NQ is qualified to AEC-Q100 Grade 1. 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 Pin 9 Pin 6 Line 4 Out LINE 2 Out LINE 4 Out Center Tabs and Pins 3, 8 www.semtech.com Revision 11/11/2011 1RClamp2574NQ PROTECTION PRODUCTS Absolute Maximum Rating Absolute Maximum Ratings 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 -C40 to +125 J STtorage Temperature -C55 to +150 STG O Electrical Characteristics (T=25 C unless otherwise specified) PlarameterSsymboCmondition MlinimuTmypicaMsaximu Unit RVeverse Stand-Off Voltage 2V.5 RWM PVunch-Through Voltage I=72A 2V. PT PT SVnap-Back Voltage I=050mA 2V. SB SB O T=25C201.0 0. Reverse Leakage Current I V = 2.5V A R RWM O T=125C305.0 0. I = 1A, t = 8/20s PP p CVlamping Voltage 4V.5 C Any I/O to Ground I = 10A, t = 8/20s 2 PP p Clamping Voltage V 7V.5 C Any 1 I/O to Ground I = 25A, t = 8/20s 2 PP p Clamping Voltage V 1V2 C Any I/O to Ground I = 40A, t = 8/20s PP p 1,2 Clamping Voltage V Line-to-Line, two I/O pins connected 2V0 C together on each line (Note 1) O T=25C535.7 V = 0V, f = 1MHz R pF Any I/O to Ground O C T=125C7 12 2 j Junction Capacitance V = 0V, f = 1MHz R 1F.7 p 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 2011 Semtech Corp. 2