PL IA NT CO M *R oH S Features Applications RoHS compliant* Halogen free** ESD protection Protects 2 lines Low leakage current Low capacitance Ethernet - 10/100/1000 Base T Firewire and USB Portable electronics Video/Graphic Cards CD143A-SR2.8~3.3 - Steering/TVS Diode Array Series General Information The CD143A-SR2.8 and CD143A-SR3.3 devices provides ESD protection for the external ports of portable electronic devices such as cell phones, handheld electronics and personal computers. 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(R) device will meet IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT) and IEC 61000-4-5 (Surge) requirements. GND 1 I/O 2 4 REF 3 I/O Absolute Maximum Ratings (@ TA = 25 C Unless Otherwise Noted) Parameter Peak Pulse Power (tp = 8/20 s)1 Peak Pulse Current (tp = 8/20 s) Operating Supply Voltage (Vdd - Gnd) ESD per IEC 61000-4-2 (Air) (Contact) DC Voltage at any I/O Pin Operating Temperature Storage Temperature Symbol PPP IPP Vdc Value 200 12 3.8 Unit W A V Vesd 30 kV Vio TJ TSTG (Gnd - 0.50) to (Vdd + 0.5) -55 C to 125 C -55 C to 150 C V C C Electrical and Thermal Characteristics (@ TA = 25 C Unless Otherwise Noted) Parameter Breakdown Voltage Minimum @ 2 A 2 Working Peak Voltage 2 Snap-Back Voltage Minimum @ 50 mA Clamping Voltage Maximum @ IP = 1 A 2,3 Clamping Voltage Maximum @ IP 2,3 Reverse Leakage Current Maximum @ VWM 2 Forward Voltage Maximum @ 15 mA Leakage Current @ VWM 4 Capacitance Typical @ 0 V, 1 MHz 4 ESD Protection per IEC 61000-4-2 Minimum Contact Discharge Minimum Air Discharge EFT Protection per IEC 61000-4-4 @ 5/50ns Surge Protection per IEC 61000-4-5 @ 8/20s Symbol VBR VWM VSB VC VC IL Vf ID CJ ESD EFT Surge CD143A-SR2.8 3.0 2.8 2.8 5.0 8.5 @ 5 A CD143A-SR3.3 3.5 3.3 3.3 7.0 15 @ 10 A 5.0 1.0 1.0 4.5 +/-8 +/-15 40 12 Unit V V V V V uA V A pF kV A A Notes: 1. See Peak Pulse Power vs. Pulse Time. 2. From Pin 4 to Pin 1. 3. See Pulse Wave Form. 4. From Pin 1 to Pin 3, Pin 1 to Pin 2 * RoHS Directive 2002/95/EC Jan 27, 2003 including Annex. ** Bourns follows the prevailing definition of "halogen free" in the industry. 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. Customers should verify actual device performance in their specific applications. CD143A-SR2.8~3.3 - Steering/TVS Diode Array Series Product Dimensions This is a molded JEDEC SOT-143 device. It weighs approximately 35 mg and has a flammability rating of UL 94V-0. The dimensions for the packaged device are shown below. Dimensions A A 2.80 - 3.04 (0.110 - 0.12) B 1.78 - 2.03 (0.070 - 0.080) C 2.11 - 2.48 (0.083 - 0.098) D 1.20 - 1.39 (0.047 - 0.055) E 0.39 - 0.50 (0.015 - 0.020) F 0.79 - 0.93 (0.031 - 0.037) G 0.08 - 0.15 (0.003 - 0.006) 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) B D G C H E F DIMENSIONS: I J MM (INCHES) K Block Diagram Recommended Pad Layout 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. 2.85 (0.112) 1.90 (0.075) GND 1 I/O 2 4 REF 3 I/O 0.85 (0.033) 1.05 (0.041) 1.90 (0.075) 2.75 (0.108) 1.70 (0.067) Typical Part Marking 0.85 (0.033) 1.20 (0.047) 0.80 (0.031) DIMENSIONS: 0.85 (0.033) CD143A-SR2.8 ..............................................................................2A CD143A-SR3.3 ..............................................................................3A MM (INCHES) Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. CD143A-SR2.8~3.3 - Steering/TVS Diode Array Series Performance Graphs Clamping Voltage vs. Peak Pulse Current 120 Waveform Parameters tt = 8 s td = 20 s tt 100 80 Clamping Voltage (V) IPP - Peak Pulse Current (% of IPP) Pulse Wave Form et 60 40 td = t|IPP/2 20 0 5 0 10 15 20 25 12 11 10 9 8 7 6 5 4 3 2 1 0 30 Waveform Parameters tr = 8 s td = 20 s 4 5 6 7 t - Time (s) 5.0 4.5 5 4.0 4 3 2 Waveform Parameters tr = 8 s td = 20 s 0 4 5 6 7 8 9 10 11 12 13 14 15 12 13 14 15 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0.000 VDD = 3.3 V, GND = 0 V, f = 1 MHz, T = 25 C 0.825 1.650 2.475 3.300 Input Voltage (V) Typical Variation of CI/O-to-I/O vs. VIN How To Order CD 143A - SR 2.8 0.8 Common Code Chip Diode Package * 143A = SOT-143 Model SR = Steering Diode Array Repetitive Peak Reverse Voltage 2.8 = 2.8 VRWM (Volts) 3.3 = 3.3 VRWM (Volts) 0.7 0.6 Capacitance (pF) 10 11 3.5 Peak Pulse Current (A) 0.5 0.4 0.3 0.2 VDD = 3.3 V, GND = 0 V, f = 1 MHz, T = 25 C 0.1 0.0 0.000 9 Typical Variation of CIN vs. VIN 6 Input Capacitance (pF) Forward Clamping Voltage (V) Forward Clamping Voltage vs. Peak Pulse Current 1 8 Peak Pulse Current (A) 0.825 1.650 2.475 3.300 Input Voltage (V) Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. CD143A-SR2.8~3.3 - 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 ....... ....... 10 pitches (min.) ....... ....... Leader ....... ....... 10 pitches (min.) W1 Start DIMENSIONS: MM (INCHES) Direction of Feed Item Symbol Carrier Width A Carrier Length B Carrier Depth C Sprocket Hole d Reel Outside Diameter D Reel Inner Diameter D1 Feed Hole Diameter D2 Sprocket Hole Position E Punch Hole Position F Punch Hole Pitch P Sprocket Hole Pitch P0 Embossment Center P1 Overall Tape Thickness T Tape Width W Reel Width W1 Quantity per Reel -- SOT-143 2.75 0.10 (0.108 - 0.004) 3.30 0.10 (0.130 - 0.004) 1.25 0.10 (0.049 - 0.004) 1.55 0.05 (0.061 - 0.002) 178 (7.008) 50.0 Min. (1.969) 13.0 0.20 (0.512 - 0.008) 1.75 0.10 (0.069 - 0.004) 3.50 0.05 (0.138 - 0.002) 4.00 0.10 (0.157 - 0.004) 4.00 0.10 (0.157 - 0.004) 2.00 0.05 (0.079 - 0.002) 0.20 0.10 (0.008 - 0.004) 8.00 0.20 (0.315 - 0.008) 14.4 Max. (0.567) Asia-Pacific: Tel: +886-2 2562-4117 * Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 * Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 * Fax: +1-951 781-5700 www.bourns.com 3,000 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. REV. 06/11