RClamp0531T Ultra-Low Capacitance 1-Line ESD protection PROTECTION PRODUCTS - RailClamp® PROTECTION PRODUCTS Description Features RailClamp is an ultra low capacitance Transient Voltage Suppressor (TVS) designed to protect high speed data interfaces. This device has been specifically designed to protect sensitive components which are connected to high-speed data and transmission lines from overvoltage caused by ESD (electrostatic discharge), CDE (Cable Discharge Events), and EFT (electrical fast transients). The RClampTM0531T has a maximum capacitance of only 0.80pF. This allows it to be used on circuits operating in excess of 2.5GHz without signal attenuation. They may be used to meet the ESD immunity requirements of IEC 61000-4-2. Transient protection for data lines to IEC 61000-4-2 (ESD) ±20kV (air), ±12kV (contact) IEC 61000-4-4 (EFT) 40A (tp = 5/50ns) Cable Discharge Event (CDE) Ultra-small package (1.0 x 0.6 x 0.4mm) Protects one I/O line Low capacitance: 0.8pF Low clamping voltage Low operating voltage: 5.0V Solid-state silicon-avalanche technology Mechanical Characteristics The RClamp0531T is in a 2-pin SLP1006P2T package measuring 1.0 x 0.6 x 0.4mm. The leads are spaced at a pitch of 0.65mm and feature a lead-free finish. Each device will protect one high-speed line operating at 5 volts. It gives the designer the flexibility to protect single lines in applications where arrays are not practical. The combination of small size, low capacitance, and high ESD surge capability makes them ideal for use in applications such as cellular phones and digital video interfaces. SLP1006P2T package Molding compound flammability rating: UL 94V-0 Marking: Marking code + date code Packaging : Tape and Reel Lead Finish: NiPdAu Pb-Free, Halogen Free, RoHS/WEEE Compliant Applications Dimensions Cellular Handsets & Accessories Digital Visual Interface (DVI) FM Antenna MDDI Ports USB Ports PCI Express Serial ATA Schematic & PIN Configuration 1.0 0.60 0.65 0.40 Maximum Dimensions (mm) Revision 03/07/2011 SLP1006P2T (Bottom View) 1 www.semtech.com RClamp0531T PROTECTION PRODUCTS Absolute Maximum Rating R ating Symbol Value Units Peak Pulse Power (tp = 8/20μs) Pp k 80 Watts Peak Pulse Current (tp = 8/20μs) IP P 4 A ESD p er IEC 61000-4-2 (Air) ESD p er IEC 61000-4-2 (Contact) VESD +/- 20 +/- 12 kV TJ -55 to +125 °C TSTG -55 to +150 °C Op erating Temp erature Storage Temp erature Electrical Characteristics (T=25oC) Parameter Symbol Conditions Minimum Typical Maximum Units 5 V 9.3 11 V 0.010 0.100 μA Reverse Stand-Off Voltage VRWM Reverse Breakdown Voltage V BR It = 1mA Reverse Leakage Current IR VRWM = 5V, T=25°C Clamping Voltage VC IPP = 1A, tp = 8/20μs 12 V Clamping Voltage VC IPP = 4A, tp = 8/20μs 20 V Junction Capacitance Cj 0.80 pF © 2011 Semtech Corp. VR = 0V, f = 1MHz 2 6 0.50 www.semtech.com RClamp0531T PROTECTION PRODUCTS Typical Characteristics Non-Repetitive Peak Pulse Power vs. Pulse Time Power Derating Curve 110 10 100 % of Rated Power or IPP Peak Pulse Power - P PP (kW) 90 1 0.1 80 70 60 50 40 30 20 10 0 0.01 0.1 1 10 0 100 25 50 75 100 125 150 o Ambient Temperature - TA ( C) Pulse Duration - tp (us) Normalized Capacitance vs. Reverse Voltage Clamping Voltage vs. Peak Pulse Current 16 1.100 1.050 12 Cj(VR) / Cj(VR=0V) Clamping Voltage -VC (V) 14 10 8 6 Waveform Parameters: tr = 8µs td = 20µs 4 2 1.000 0.950 0.900 0.850 f = 1 MHz 0 0.800 0 1 2 3 4 5 0 Insertion Loss S21 CH1 S21 LOG 1 2 3 4 5 Reverse Voltage (VR) Peak Pulse Current - IPP (A) USB 2.0 Eye Pattern with RClamp0531T 6 dB / REF 0 dB 1: -0.15390 dB 800 MHz 5 0 dB 12 3 2: -0.1480 dB 900 MHz 4 3: 0.01210 dB 1.8 GHz -6 dB -12 dB 4: 0.09410 dB 2.5 GHz -18 dB -24 dB -30 dB -36 dB -42 dB -48 dB 1 MHz START . 030 MHz © 2011 Semtech Corp. 10 MHz 100 MHz 3 1 GHz GHz STOP 3000. 000000 MHz 3 www.semtech.com RClamp0531T PROTECTION PRODUCTS ESD Clamping (+8kV Contact per IEC 61000-4-2) ESD Clamping (-8kV Contact per IEC 61000-4-2) Note: Data is taken with a 10x attenuator © 2011 Semtech Corp. Note: Data is taken with a 10x attenuator 4 www.semtech.com RClamp0531T PROTECTION PRODUCTS Applications Information Device Connection Options Equivalent Circuit Diagram These low capacitance TVS diodes are designed to provide common mode protection for one high-speed line or differential protection for one line pair. The device is bidirectional and may be used on lines where the signal polarity is positive and negative. Circuit Board Layout Recommendations for Suppression of ESD. Good circuit board layout is critical for the suppression of ESD induced transients. The following guidelines are recommended: z Place the TVS near the input terminals or connectors to restrict transient coupling. z Minimize the path length between the TVS and the protected line. z Minimize all conductive loops including power and ground loops. z The ESD transient return path to ground should be kept as short as possible. z Never run critical signals near board edges. z Use ground planes whenever possible. © 2011 Semtech Corp. 5 www.semtech.com RClamp0531T PROTECTION PRODUCTS Applications Information - Spice Model RClamp0531T Spice Model R Clamp0531T Spice Parameters Parameter Unit D1 (T VS) D2 (T VS) IS Amp 2.11E-14 2.11E-14 BV Volt 8.6 8.6 VJ Volt 0.7 0.7 RS Ohm 0.4 0.4 IB V Amp 1E-3 1E-3 CJO Farad 0.8E-12 0.8E-12 TT sec 2.541E-9 2.541E-9 M -- 0.02 0.02 N -- 1.1 1.1 EG eV 1.11 1.11 Note: Spice model is for simulating transient response only. © 2011 Semtech Corp. 6 www.semtech.com RClamp0531T PROTECTION PRODUCTS Outline Drawing - SLP1006P2T A B D E DIM TOP VIEW A SEATING PLANE aaa C C A1 A A1 b D E e L R N aaa bbb DIMENSIONS INCHES MILLIMETERS MIN NOM MAX MIN NOM MAX .015 .016 .017 .000 .001 .002 .018 .020 .022 .035 .039 .043 .020 .024 .028 .026 BSC .008 .010 .012 .002 .004 .006 2 .003 .004 0.37 0.40 0.43 0.00 0.03 0.05 0.45 0.50 0.55 0.90 1.00 1.10 0.50 0.60 0.70 0.65 BSC 0.20 0.25 0.30 0.05 0.10 0.15 2 0.08 0.10 PIN 1 ID R bxN bbb C A B 2x L e BOTTOM VIEW NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). Land Pattern - SLP1006P2T Y (C) DIM C G X Y Z Z G DIMENSIONS INCHES MILLIMETERS (.033) (0.85) .012 0.30 .024 0.60 .022 0.55 .055 1.40 X NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. © 2011 Semtech Corp. 7 www.semtech.com RClamp0531T PROTECTION PRODUCTS Marking Code Ordering Information 3T Part Number Working Voltage Qty per Reel Reel Size RClamp 0531T.TCT 5V 3,000 7 Inch RailClamp and RClamp are trademarks of Semtech Corporation. Notes: 1) Marking will also include line matrix date code 2) Device is electrically symmetrical 3T 3T 3T Tape and Reel Specification Band Location (Opposite Sprocket Holes) A0 0.69 +/-0.10 mm B0 K0 1.19 +/-0.10 mm 0.66 +/-0.10 mm Tape Width B, (Max) D D1 8 mm 4.2 mm (.165) 1.5 + 0.1 mm - 0.0 mm (0.59 +.005 - .000) 0.4 mm ±0.25 (.031) E 1.750±.10 mm (.069±.004) F P P0 P2 T W 3.5±0.05 mm (.138±.002) 4.0±0.10 mm (.157±.004) 4.0±0.1 mm (.157±.004) 2.0±0.05 mm (.079±.002) 0.254±0.02 mm (.016) 8.0 mm + 0.3 mm - 0.1 mm (.312±.012) Contact Information Semtech Corporation Protection Products Division 200 Flynn Rd., Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 © 2011 Semtech Corp. 8 www.semtech.com