RClamp0524S RailClamp® Low Capacitance TVS Diode Array PROTECTION PRODUCTS Description Features RailClamps® are low capacitance TVS arrays designed to protect high speed data interfaces. This series has been specifically designed to protect sensitive components which are connected to data and transmission lines from overvoltage caused by ESD (electrostatic discharge), CDE (Cable Discharge Events), and EFT (electrical fast transients). The unique design incorporates two identical circuits. Each circuit is comprised of surge rated, low capacitance steering diodes and a TVS diode in a single package. During transient conditions, the steering diodes direct the transient current to ground. The internal TVS diode clamps the transient voltage to a safe level. The RClamp0524S has a low maximum capacitance of only 5pF per line. Each device will protect up to four data lines. The dual circuits make it ideal for applications like power over Ethernet (PoE) where each signal pair sits at a different potential. The RClampTM0524S is in a 6-pin, RoHS/WEEE compliant, SOT-23 package. The leads are finished with leadfree matte tin. They may be used to meet the ESD immunity requirements of IEC 61000-4-2, Level 4 (±15kV air, ±8kV contact discharge). ESD protection for high-speed data lines to Mechanical Characteristics JEDEC SOT-23 6L package Molding compound flammability rating: UL 94V-0 Marking : S05 Packaging : Tape and Reel RoHS/WEEE Compliant Applications Package Dimensions PoE Monitors and Flat Panel Displays Digital Video Interface (DVI) 10/100/1000 Ethernet Notebook Computers Equivalent Circuit and PIN Configuration 1.6 1 IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact) IEC 61000-4-4 (EFT) 40A (5/50ns) Array of surge rated diodes with internal TVS Diode Small package saves board space Protects four I/O lines Low capacitance: 5pF maximum Low clamping voltage Low operating voltage: 5.0V Solid-state silicon-avalanche technology 2.8 2 2.9 1.0 6 Pin SOT-23 package Nominal Dimensions in mm Revision 04/24/2008 SOT-23 6L (Top View) 1 www.semtech.com RClamp0524S PROTECTION PRODUCTS Absolute Maximum Rating R ating Symbol Value Units Peak Pulse Power (tp = 8/20μs) Pp k 150 Watts ESD per IEC 61000-4-2 (Air) ESD per IEC 61000-4-2 (Contact) VESD 15 8 kV Lead Soldering Temperature TL 260 (10 sec.) °C Operating Temperature TJ -55 to +125 °C TSTG -55 to +150 °C Storage Temperature Electrical Characteristics (T=25oC unless otherwise specified) Parameter Symbol Conditions Reverse Stand-Off Voltage VRWM Pin 2 or 4 to Pin 3 Pin 5 or 6 to Pin 1 Reverse Breakdown Voltage V BR It = 1mA Pin 2 or 4 to Pin 3 Pin 5 or 6 to Pin 1 Reverse Leakage Current IR VRWM = 5V, T=25°C Pin 2 or 4 to Pin 3 Pin 5 or 6 to Pin 1 1 μA Clamp ing Voltage VC IPP = 1A, tp = 8/20μs Pin 2 or 4 to Pin 3 Pin 5 or 6 to Pin 1 15 V Clamp ing Voltage VC IPP = 1A, tp = 8/20μs Pin 3 to Pin 2 or 4 Pin 1 to Pin 5 or 6 2 V Clamp ing Voltage VC IPP = 6A, tp = 8/20μs Pin 2 or 4 to Pin 3 Pin 5 or 6 to Pin 1 24 V Clamp ing Voltage VC IPP = 6A, tp = 8/20μs Pi n 2 to Pi n 4 Pi n 5 to Pi n 6 26 V Junction Cap acitance Cj VR = 0V, f = 1MHz Pin 2 or 4 to Pin 3 Pin 5 or 6 to Pin 1 5 pF VR = 0V, f = 1MHz Pi n 2 to 4 Pi n 5 to 6 © 2008 Semtech Corp. 2 Minimum Typical Maximum Units 5 V 6 V 1.5 pF www.semtech.com RClamp0524S PROTECTION PRODUCTS Typical Characteristics Non-Repetitive Peak Pulse Power vs. Pulse Time Power Derating Curve 10 110 90 % of Rated Power or PI P Peak Pulse Power - PPP (kW) 100 1 0.1 80 70 60 50 40 30 20 10 0 0.01 0.1 1 10 100 0 1000 25 50 Pulse Waveform 125 80 70 Clamping Voltage -VC (V) 90 e-t 60 50 40 td = IPP/2 30 20 20 Line to Line 15 Line to Gnd 10 Waveform Parameters: tr = 8µs td = 20µs 5 10 0 0 0 5 10 15 20 25 30 0 1 2 Time (µs) 3 2.5 CJ(VR) / CJ(VR=0) 2 1.5 1 Waveform Parameters: tr = 8µs td = 20µs 0.5 0 0 1 2 3 4 5 6 7 6 1.5 1.4 1.3 1.2 1.1 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 7 f = 1 MHz 0 Peak Pulse Current (A) © 2008 Semtech Corp. 3 4 5 Peak Pulse Current - IPP (A) Normalized Capacitance vs. Reverse Voltage Forward Voltage vs. Forward Current Forward Voltage (V) 150 25 Waveform Parameters: tr = 8µs td = 20µs 100 PP 100 Clamping Voltage vs. Peak Pulse Current 110 Percent of I 75 Ambient Temperature - TA (oC) Pulse Duration - tp (μs) 3 1 2 3 Reverse Voltage - VR (V) 4 5 www.semtech.com RClamp0524S PROTECTION PRODUCTS Applications Information Insertion Loss S21 Analog Cross Talk CH1 S21 CH1 S21 LOG LOG 20 dB /REF 0 dB 6 dB / REF 0 dB 1: -.38340 dB 800 MHz 2: -.41460 dB 900 MHz 0 dB 12 3 -6 dB 4 -12 dB 3: -1.6371 dB 1.8 GHz 4: -6.3880 dB 2.5 GHz -18 dB 5: -7.0638 dB 2.7 GHz -24 dB -30 dB -36 dB 4 1 MHz START. 10 MHz 100 MHz MHz 3 1 GHz GHz START. 030 MHz STOP 3000. 000000 MHz STOP 3 000. 000000 MHz ESD Clamping (8kV Contact per IEC 61000-4-2) Note: Data is taken with a 10x attenuator © 2008 Semtech Corp. 4 www.semtech.com RClamp0524S PROTECTION PRODUCTS RJ45 Figure 1 - GbE Ethernet Differential Protection Figure 2 - 10/100 Ethernet Differential Mode Protection © 2008 Semtech Corp. 5 www.semtech.com RClamp0524S PROTECTION PRODUCTS Outline Drawing Drawing -SOT23 - SO-8 6L Outline DIM A e1 2X E/2 A A1 A2 b c D E1 E e e1 L L1 N 01 aaa bbb ccc D N EI 1 E 2 ccc C 2X N/2 TIPS e B D aaa C A2 SEATING PLANE DIMENSIONS MILLIMETERS INCHES MIN NOM MAX MIN NOM MAX .057 .035 .006 .000 .035 .045 .051 .020 .010 .009 .003 .110 .114 .122 .060 .063 .069 .110 BSC .037 BSC .075 BSC .012 .018 .024 (.024) 6 10° 0° .004 .008 .008 1.45 0.90 0.00 0.15 .90 1.15 1.30 0.25 0.50 0.08 0.22 2.80 2.90 3.10 1.50 1.60 1.75 2.80 BSC 0.95 BSC 1.90 BSC 0.30 0.45 0.60 (0.60) 6 0° 10° 0.10 0.20 0.20 A H A1 C bxN bbb c GAGE PLANE C A-B D 0.25 L 01 (L1) SEE DETAIL DETAIL A A SIDE VIEW NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. DATUMS -A- AND -B- TO BE DETERMINED AT DATUM PLANE -H3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. Land Pattern -SOT23 6L X DIM (C) G C G P X Y Z Z Y P DIMENSIONS INCHES MILLIMETERS (.098) .055 .037 .024 .043 .141 (2.50) 1.40 0.95 0.60 1.10 3.60 NOTES: 1. © 2008 Semtech Corp. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. 6 www.semtech.com RClamp0524S PROTECTION PRODUCTS Marking Codes Ordering Information S05 Part Number Lead Finish Qty per Reel R eel Size RClamp 0524S.TCT Pb free 3,000 7 Inch Tape and Reel Specification User Direction of feed A0 3.23 +/-0.05 mm B0 K0 3.17 +/-0.05 mm Tape Width B, (Max) D 8 mm 4.2 mm (.165) 1.5 + 0.1 mm - 0.0 mm 1.37 +/-0.05 mm D1 E 1.0 mm ±0.05 1.750±.10 mm F K (MAX) P P0 P2 T(MAX) 3.5±0.05 mm 2.4 mm 4.0±0.1 mm 4.0±0.1 mm 2.0±0.05 mm 0.4 mm W 8.0 mm + 0.3 mm - 0.1 mm Contact Information Semtech Corporation Protection Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 © 2008 Semtech Corp. 7 www.semtech.com