RClamp0502B Ultra-Low Capacitance TVS for ESD and CDE Protection  PROTECTION PRODUCTS - RailClamp Description Features RailClamps are ultra low capacitance TVS arrays (cid:139) Transient protection for high-speed data lines to designed to protect high speed data interfaces. This IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact) series has been specifically designed to protect sensi- IEC 61000-4-4 (EFT) 40A (5/50ns) tive components which are connected to high-speed (cid:139) Designed to replace polymer TVS data and transmission lines from overvoltage caused (cid:139) Protects up to two I/O lines by ESD (electrostatic discharge), CDE (Cable Discharge (cid:139) Ultra-Low capacitance (<1pF) Events), and EFT (electrical fast transients). (cid:139) No insertion loss to >>>>>33333.....00000GGGGGHHHHHzzzzz The RClampTM0502B has a typical capacitance of only (cid:139) Low profile (<1mm) 0.50pF (pin 1 to 2). This means it can be used on (cid:139) Low leakage current and clamping voltage circuits operating in excess of 3GHz without signal (cid:139) Low operating voltage: 5.0V attenuation. They may be used to meet the ESD (cid:139) Solid-state silicon-avalanche technology immunity requirements of IEC 61000-4-2, Level 4 (±15kV air, ±8kV contact discharge). Each device can Mechanical Characteristics be configured to protect 1 bidirectional line or two (cid:139) SC-75 (SOT-523) package unidirectional lines. (cid:139) Lead Finish: Matte Tin These devices are in a small SC-75 (SOT-523) package (cid:139) RoHS/WEEE Compliant and feature a lead-free, matte tin finish. They are com- (cid:139) Molding compound flammability rating: UL 94V-0 patible with both lead free and SnPb assembly tech- niques. They are designed for use in applications where (cid:139) Marking: P5 board space is at a premium. The combination of small (cid:139) Packaging: Tape and Reel size, low capacitance, and high level of ESD protection Applications makes them a flexible solution for applications such as HDMI, MDDI, antenna circuits, Automatic Test Equipment, (cid:139) High-Definition Multimedia Interface (HDMI) USB 2.0, and Infiniband circuits. (cid:139) Mobile Display Digital Interface (MDDI) (cid:139) USB 2.0 & Firewire Ports (cid:139) GaAs Photodetector Protection (cid:139) HBT Power Amp Protection (cid:139) Infiniband Transceiver Protection Dimensions Schematic & PIN Configuration 1.60 0.50 BSC 3 1.60 0.80 1 2 1.00 BSC 0.75 Nominal Dimensions (mm) SC-75 3L (Top View) Revision 10/26/2007 1 www.semtech.com

RClamp0502B PROTECTION PRODUCTS Absolute Maximum Rating Rating Symbol Value Units PeakPulsePower(tp =8/20µs) P 125 Watts pk PeakPulseCurrent (tp =8/20µs) I 5 A PP ESDperIEC61000-4-2(Air) V 15 kV ESD ESDperIEC61000-4-2(Contact) 8 Operating Temperature T -55to+125 °C J StorageTemperature T -55to+150 °C STG Electrical Characteristics (T=25oC) Parameter Symbol Conditions Minimum Typical Maximum Units ReverseStand-Off Voltage V Pin 1orPin 2toPin 3 5 V RWM and Between Pins1and 2 ReverseBreakdown Voltage V I =1mA 6 V BR t Pin 1orPin 2toPin 3 and Between Pins1and 2 ReverseLeakageCurrent I V =5V, T=25°C 1 µA R RWM Pin 1orPin 2toPin 3 and Between Pins1and 2 Clamping Voltage V I =1A, tp =8/20µs 15 V C PP Pin 1toPin 2 Clamping Voltage V I =5A, tp =8/20µs 22 V C PP Pin 1orPin 2toPin 3 Clamping Voltage V I =5A, tp =8/20µs 25 V C PP Pin 1toPin 2 V =0V, f =1MHz 0.60 0.9 pF Junction Capacitance C R j Pin 1toPin 2 V =0V, f =1MHz 1.2 pF Junction Capacitance C R j Pin 1orPin 2toPin 3  2007 Semtech Corp. 2 www.semtech.com

RClamp0502B PROTECTION PRODUCTS Typical Characteristics Non-Repetitive Peak Pulse Power vs. Pulse Time Power Derating Curve 10 110 100 W) 90 wer - P (kPP 1 Power or IPP 678000 ak Pulse Po 0.1 % of Rated 345000 Pe 20 10 0.01 0 0.1 1 10 100 1000 0 25 50 75 100 125 150 Pulse Duration - tp (µs) Ambient Temperature - TA (oC) Clamping Voltage vs. Peak Pulse Current Clamping Voltage vs. Peak Pulse Current Pin 1 to Pin 2 Pin 1 or Pin 2 to Pin 3 25 20 18 V) 20 V) 16 V (C V (C14 e - 15 e - 12 g g a a olt olt 10 V V g 10 g 8 n n pi pi m Waveform m 6 Waveform Cla 5 Parameters: Cla 4 Parameters: tr = 8µs tr = 8µs td = 20µs 2 td = 20µs 0 0 0 1 2 3 4 5 6 0 1 2 3 4 5 6 Peak Pulse Current - I (A) Peak Pulse Current - I (A) PP PP Normalized Capacitance vs. Reverse Voltage Normalized Capacitance vs. Reverse Voltage Pin 1 or Pin 2 to Pin 3 Pin 1 to Pin 2 1.2 1.4 f = 1 MHz 1.2 1 V=0)R 1 V=0)R 0.8 C(J 0.8 C(J V) / R 0.6 V) / R 0.6 C(J C(J 0.4 0.4 0.2 f = 1 MHz 0.2 0 0 1 2 3 4 5 0 1 2 3 4 5 Reverse Voltage - VR (V) Reverse Voltage - VR (V)  2007 Semtech Corp. 3 www.semtech.com

RClamp0502B PROTECTION PRODUCTS Typical Characteristics Insertion Loss S21 (Pin 1 to Pin 2) Insertion Loss S21 (Pin 1 or Pin 2 to Pin 3) CH1 S21 LOG 6 dB / REF 0 dB CH1 S21 LOG 6 dB / REF 0 dB 1: .03430 dB 1: .00460 dB 900 MHz 900 MHz 2: .07870 dB 2: .02010 dB 1.8 GHz 1.8 GHz 3: .28040 dB 3: -.08180 dB 3 2 .5 GHz 3 2 .5 GHz 0 dB 0 dB 1 2 1 2 -6 dB -6 dB -12 dB -12 dB -18 dB -18 dB -24 dB -24 dB -30 dB -30 dB -36 dB -36 dB 1 10 100 1 3 1 10 100 1 3 MHz MHz MHz GHz GHz MHz MHz MHz GHz GHz START . 030 MHz STOP 3 000. 0000 00 MHz START . 030 MHz STOP 3 000. 0000 00 MHz ESD Clamping ESD Clamping (4kV Contact per IEC 61000-4-2) (8kV Contact per IEC 61000-4-2) Note: Data is taken with a 10x attenuator Note: Data is taken with a 10x attenuator Analog Crosstalk CH1 S21 LOG 20 dB /R EF 0 dB START . 030 MHz STOP 3 000. 0000 00 MHz  2007 Semtech Corp. 4 www.semtech.com

RClamp0502B PROTECTION PRODUCTS Applications Information Figure 1. Pin Configuration Device Connection Options This device is optimized for protection of 1 line operating in excess of 3GHz. It may also be used to protect two lines operating in excess of 2.0GHz. The device is connected as follows: Protection for one line with <1pF capacitance can be achieved by connecting one data line to either pin 1 or pin 2 with the other pin connected to ground. Pin 3 is not connected. The connection to ground should be made directly to a ground plane. The path length should also be kept as short as possible to minimize parasitic inductance. Protection of two lines is achieved by connecting data lines at pins 1 & 2. Pin 3 is connected to ground. The connection to ground should be made directly to a ground plane. The path length should also be kept as short as possible to minimize parasitic inductance. Matte Tin Lead Finish Matte tin has become the industry standard lead-free replacement for SnPb lead finishes. A matte tin finish is composed of 100% tin solder with large grains. Since the solder volume on the leads is small com- pared to the solder paste volume that is placed on the land pattern of the PCB, the reflow profile will be determined by the requirements of the solder paste. Therefore, these devices are compatible with both lead-free and SnPb assembly techniques. In addition, unlike other lead-free compositions, matte tin does not have any added alloys that can cause degradation of the solder joint.  2007 Semtech Corp. 5 www.semtech.com

RClamp0502B PROTECTION PRODUCTS Applications Information The HDMI Compliance Test Specification (CTS) requires sink (receiver) ports maintain a differential impedance of 100 Ohms +/- 15%. The measurement is taken using a Time Domain Reflectometry (TDR) method that BB AA utilizes a pulse with a risetime <= 200ps. ESD protection devices have an inherent junction capacitance. Even a small amount of added capacitance on an HDMI port will cause the impedance of the differential pair to drop. As such, some form of compensation to the layout will be required to bring the differential pairs back within the required 100 Ohm +/- 15% range. The higher the added capacitance, the more extreme the modifications will need to be. If the added capacitance is too high, compensation may not even be possible. The RClamp0502B presents <1pF capacitance between the pairs while being rated to A B handle >8kV ESD contact discharges (>15kV air X-axis 1.640 1.855 (nsec) discharge) as outlined in IEC 61000-4-2. As such, it is Y-axis 99.2 104.6 (Ohm) possible to make minor adjustments to the board layout parameters to compensate for the added capacitance of the RClamp0502B. Figure 2 shows Figure 3 - TDR Measurement using Semtech how to implement the RClamp0502B in an HDMI Evaluation Board application (transmitter and receiver). Figure 3 shows impedance test results using a Semtech evaluation board with layout compensation. As shown, the device meets the HDMI CTS impedance requirements. HHDDMMII TTrraannssmmiitttteerr HHDDMMII DDiissppllaayy Figure 2 - HDMI Schematic  2007 Semtech Corp. 6 www.semtech.com

RClamp0502B PROTECTION PRODUCTS Applications Information - Spice Model RClamp0502B Spice Model RClamp0502BSpice Parameters Parameter Unit D1(TVS) D2(TVS) IS Amp 4.43E-14 4.43E-14 BV Volt 8.89 8.89 VJ Volt 0.68 0.68 RS Ohm 1.72 1.72 IBV Amp 1.0E-3 1.0E-3 CJO Farad 1.18E-12 1.18E-12 TT sec 2.541E-9 2.541E-9 M -- 0.133 0.133 N -- 1.1 1.1 EG eV 1.11 1.11  2007 Semtech Corp. 7 www.semtech.com

RClamp0502B PROTECTION PRODUCTS Outline Drawing -SC-75 (SOT-523) A D DIMENSIONS INCHES MILLIMETERS e1 DIM MINNOMMAX MIN NOMMAX B A .023 - .035 0.60 - 0.90 3 A1 .000 - .004 0.00 - 0.10 A2 .023 .030 .031 0.60 0.75 0.80 b .005 - .012 0.15 - 0.30 c .003 - .008 0.10 - 0.20 E1 E D .059 .063 .067 1.50 1.60 1.70 E .057 .063 .069 1.45 1.60 1.75 E1 .029 .031 .033 0.75 0.80 0.85 e .039 BSC 1.00 BSC 1 2 e1 .020 BSC 0.50 BSC L (.009) (0.22) bxN N 3 3 e bbb C A B a0aa 0° .0-04 8° 0° 0.-10 8° bbb .008 0.20 A A2 aaa C SEATING PLANE A1 C H SEE DETAIL A 0 c SEATING PLANE C L SIDE VIEW DETAIL A NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. DATUMS - A - AND - B - TO BE DETERMINED AT DATUM PLANE -H- 3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. Land Pattern -SC-75 (SOT-523) X DIMENSIONS Y DIM INCHES MILLIMETERS C (.055) (1.40) Z C G P .039 1.00 p1 .020 0.50 G .024 0.60 X .016 0.40 Y Y .031 0.80 Z .087 2.20 p1 P NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET.  2007 Semtech Corp. 8 www.semtech.com

RClamp0502B PROTECTION PRODUCTS Marking Ordering Information Lead Qtyper Reel Part Number Finish Reel Size RClamp0502B.TCT Pb Free 3,000 7Inch P 5 RailClamp and RClamp are registered marks of Semtech Corporation Tape and Reel Specification Device Orientation in Tape Tape D1 K B,(Max) D E F P P0 P2 T(MAX) W Width (MIN) (MAX) 1.5+0.1mm 1.750±.10 4.0±0.1 4.0±0.1 3.5±0.05 2.0±0.05m- 4.2mm -0.0mm 1.0mm mm 2.4mm mm mm 0.4mm 8.3mm 8mm mm m (.165) (0.59+.005 (.039) (.069±.004) (.094) (.157±.00- (.157±.00- (.016) (.312±.012) (.138±.002) (.079±.002) -.000) 4) 4) Contact Information Semtech Corporation Protection Products Division 200 Flynn Rd., Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804  2007 Semtech Corp. 9 www.semtech.com