T PL IA N M CO *R oH S Features Applications ■ RoHS compliant* ■ Ethernet - 10/100/1000 Base T ■ Halogen free** ■ Firewire and USB ■ ESD protection >15 kV ■ Portable electronics ■ Protects Vcc and two data lines ■ Video/graphic cards CD143A-SR05LC - Steering/TVS Diode Array Series General Information The Bourns® Model CD143A-SR05LC device provides ESD, EFT and surge protection for the external ports of portable electronic devices such as cellphones, handheld electronics and personal computers. GND 1 I/O 2 The ESD protection provided by the component enables a data port to withstand a minimum ±8 KV Contact / ±15 KV Air Discharge per the ESD test method specified in IEC 61000-4-2. The device measures 2.80 mm x 1.20 mm and is available in a SOT-143 package intended to be mounted directly onto an FR4 printed circuit board.The Bourns® device will meet IEC 61000-4-2 (ESD), IEC 61000-4-4(EFT) and IEC 61000-4-5 (Surge) requirements. 4 REF 3 I/O Absolute Maximum Ratings (@ TA = 25 °C Unless Otherwise Noted) Parameter Symbol Value Unit Peak Pulse Current (tp= 8/20 µs) IPP 13 A Operating Temperature TJ -55 °C to +125 °C TSTG -55 °C to +150 °C Vf 1 V Storage Temperature Forward Voltage (If= 15 mA, Pin 1-4) Electrical and Thermal Characteristics (@ TA = 25 °C Unless Otherwise Noted) Parameter Symbol Value Unit Breakdown Voltage Minimum @ 2 mA 1 VBR 6.1 V Working Peak Voltage 1 VWM 5.0 V VC 9.0 V VC 12.5 @ 13 A V ID 1.0 µA CIN 3 pF Clamping Voltage Maximum @ IP = 5 A 2,4 Clamping Voltage Maximum @ IPP 2,4 Leakage Current @ VWM 1 Capacitance Maximum between I/O Pins and Ground @ VR = 0 V, f = 1 MHz 3 Notes: 1. From Pin 4 to Pin 1. 2. See Pulse Wave Form. 3. Pin 1 (GND) connected to Ground, Pin 4 (REF) connected to 5 V. 4. I/O to GND, REF connected to 5 V and GND connected to Ground. * RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. **Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less. Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. CD143A-SR05LC - Steering/TVS Diode Array Series Product Dimensions This is a molded JEDEC SOT-143 device. It has a flammability rating of UL 94V-0. The dimensions for the packaged device are shown below. Dimensions A 2.80 - 3.04 (0.110 - 0.12) B 1.78 - 2.03 (0.070 - 0.080) C 2.11 - 2.55 (0.083 - 0.100) D 1.2 - 1.4 (0.047 - 0.055) E 0.35 - 0.5 (0.014 - 0.020) F 0.76 - 0.93 (0.030 - 0.037) G 0.08 - 0.18 (0.003 - 0.007) H 0.46 - 0.60 (0.018 - 0.024) I 0.84 - 1.14 (0.033 - 0.045) J 0.72 - 0.83 (0.028 - 0.033) K 0.013 - 0.10 (0.0005 - 0.004) A B D G C H F E DIMENSIONS: I J MM (INCHES) K Recommended Pad Layout Block Diagram This is the footprint recommended for this SOT-143 device. The device block diagram below includes the pin names and basic electrical connections associated with each channel. 2.92 (0.115) 1.92 (0.076) GND 1 I/O 2 4 REF 3 I/O 1.4 (0.055) 3.6 (0.142) 2.2 (0.087) 0.8 (0.031) 1.72 (0.068) 1.4 (0.055) Typical Part Marking CD143A-SR05LC ....................................................................... 5LC 1.4 (0.055) 1.00 (0.039) 0.52 (0.020) DIMENSIONS: MM (INCHES) Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. CD143A-SR05LC - Steering/TVS Diode Array Series Performance Graphs 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Pulse Wave Form IPP – Peak Pulse Current (% of IPP) Clamping Voltage (V) Typical Clamping Voltage vs. Peak Pulse Current Waveform Parameters: tr=8 µs td=20 µs I/O pin to GND pin 120 Test Waveform Parameters tt = 8 µs td = 20 µs tt 100 80 et 60 40 td = t|IPP/2 20 0 0 10 5 15 20 25 30 t – Time (µs) 4 5 6 7 8 9 10 11 12 13 Peak Pulse Current (A) Typical Capacitance vs. Reverse Voltage Power Derating Curve 4.0 100 % of Rated Power Input Capacitance (pF) 3.5 3.0 2.5 2.0 80 60 40 20 1.5 1.0 0 VDD = 5 V, GND = 0 V, f = 1 MHz, T = 25 ° C 0.5 0 25 50 75 100 TL – Lead Temperature (°C) 0.0 0 1 2 3 4 5 How to Order CD 143A - SR 05 LC Common Code Chip Diode Package 143A = SOT-143 Model SR = Steering Diode Array Workint Peak Voltage 05 = 5.0 VWM (Volts) Capacitance LC = Low Capacitance Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. 125 150 CD143A-SR05LC - Steering/TVS Diode Array Series Application Information The Model CD143A-SR05LC is designed to protect two data lines against transient overvoltage events, as well as to limit the transient voltage on the 5 V supply line of the protected device. Pin 1 must be connected to the local Ground used by the protected device and Pin 4 must be connected to the 5 V supply rail used by the protected device, as shown in the figure below. Under no circumstances should Pins 1 and 4 be left unconnected (floating). To optimize the performance of the protection design, connections to the CD143A-SR05LC should be as short as possible. This will minimize the parasitic inductance of the printed circuit board traces. An optional 0.1 µF bypass chip capacitor can be added from Pin 4 to Ground to enhance the ESD performance of the design when the nearest bypass capacitor is a significant distance from the Model CD143A-SR05LC. VCC = 5 V 4 GND OPTIONAL LOCAL BYPASS CAPACITOR CD143A-SR05LC 1 2 GND 3 PROTECTED LINE #1 PROTECTED LINE #2 Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. 3312 - 2 mm SMD Trimming Potentiometer CD143A-SR05LC - Steering/TVS Diode Array Series Packaging Information The surface mount product is packaged in an 8 mm x 4 mm tape and reel format per EIA-481 standard. P 0 P 1 d T E Index Hole 120 ° F D2 W A D1 D P B Trailer ....... ....... End C Device ....... ....... ....... ....... Leader ....... ....... 10 pitches (min.) 10 pitches (min.) W1 Start DIMENSIONS: MM (INCHES) Direction of Feed Item Symbol SOT-143 Carrier Width A 2.80 ± 0.15 (0.110 ± 0.006) Carrier Length B 3.25 ± 0.15 (0.128 ± 0.006) Carrier Depth C 1.25 ± 0.15 (0.049 ± 0.006) Sprocket Hole d 1.50 ± 0.10 (0.059 ± 0.004) Reel Outside Diameter D 178 ± 2 (7.008 ± 0.079) Reel Inner Diameter D1 Feed Hole Diameter D2 13.0 ± 0.20 (0.512 ± 0.008) Sprocket Hole Position E 1.75 ± 0.10 (0.069 ± 0.004) Punch Hole Position F 3.50 ± 0.10 (0.138 ± 0.004) Punch Hole Pitch P 4.00 ± 0.10 (0.157 ± 0.004) Sprocket Hole Pitch P0 4.00 ± 0.20 (0.157 ± 0.008) Embossment Center P1 2.00 ± 0.10 (0.079 ± 0.004) Overall Tape Thickness T 0.20 ± 0.10 (0.008 ± 0.004) Tape Width W 8.00 ± 0.20 (0.315 ± 0.008) Reel Width W1 Quantity per Reel -- 50.0 MIN. (1.969) Asia-Pacific: Tel: +886-2 2562-4117 Fax: +886-2 2562-4116 EMEA: Tel: +36 88 520 390 Fax: +36 88 520 211 The Americas: Tel: +1-951 781-5500 Fax: +1-951 781-5700 www.bourns.com 14.4 MAX. (0.567) 3,000 REV. 03/15 Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications.