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| IA NT Features Applications Lead free as standard RoHS compliant* ESD protection Protects 2 lines Ethernet - 10/100/1000 Base T Firewire and USB Portable electronics Video/Graphic Cards *R oH S CO M PL 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. I/O 2 3 I/O 4 GND 1 REF Electrical and Thermal Characteristics (@ TA = 25 C Unless Otherwise Noted) Parameter Peak Pulse Power (tp = 8/20 s)1 Peak Pulse Current (tp = 8/20 s) Operating Temperature Storage Temperature Forward Surge Rating (10 mA, 50 s @ 25 C) Symbol PPP IPP TJ TSTG VF Value 300 30 -55 C to 150 C -55 C to 150 C 1.0 Unit W A C C V Parameter Breakdown Voltage Minimum @ 2 A Working Peak Voltage2 Snap-Back Voltage Minimum @ 50 mA Clamping Voltage Maximum @ IP = 1 A Clamping Voltage Maximum @ IP Leakage Current @ VWM 2 Capacitance Typical @ 0 V, 1 MHz 4 2,3 2,3 2 Symbol VBR VWM VSB VC VC ID CJ CD143A-SR2.8 3.0 2.8 2.8 5.0 8.5 @ 5 A 1.0 4.5 CD143A-SR3.3 3.5 3.3 3.3 7.0 15 @ 10 A Unit V V V V V A pF 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, Pin 3 to Pin 4, Pin 2 to Pin 4. *RoHS Directive 2002/95/EC Jan 27 2003 including Annex 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. A A B Dimensions 2.80 - 3.04 (0.110 - 0.12) 1.78 - 2.03 (0.070 - 0.080) 2.11 - 2.48 (0.083 - 0.098) 1.20 - 1.39 (0.047 - 0.055) 0.39 - 0.50 (0.015 - 0.020) 0.79 - 0.93 (0.031 - 0.037) 0.08 - 0.15 (0.003 - 0.006) 0.46 - 0.60 (0.018 - 0.024) 0.84 - 1.14 (0.033 - 0.045) 0.72 - 0.83 (0.028 - 0.033) 0.013 - 0.10 (0.0005 - 0.004) B C D D C G E H F G H F E I DIMENSIONS: MM (INCHES) I J J K K Recommended Pad Layout This is the footprint recommended for this SOT-143 device. Block Diagram The device block diagram below includes the pin names and basic electrical connections associated with each channel. 2.85 (0.112) 2.00 (0.079) 4 GND 1 REF 0.85 (0.033) 1.90 (0.075) 1.80 (0.071) 1.05 (0.041) 2.75 (0.108) I/O 2 3 I/O Typical Part Marking 0.85 (0.033) CD143A-SR2.8 ..............................................................................2A CD143A-SR3.3 ..............................................................................3A 1.20 (0.047) 0.80 (0.031) 0.85 (0.033) DIMENSIONS: 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 Peak Pulse Power vs Pulse Time 10,000 PPP - Peak Pulse Current (W) Pulse Wave Form IPP - Peak Pulse Current (% of IPP) 120 100 80 60 40 20 0 td = t|IPP/2 tt Test Waveform Parameters tt = 8 s td = 20 s et 1,000 300 W, 8/20 s Waveform 100 10 0.01 1 10 100 1,000 10,000 0 5 10 15 20 25 30 td - Pulse Duration (s) t - Time (s) How To Order CD 143A - SR 2.8 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) 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 E Index Hole T 120 F W B D2 D1 D P Trailer A Device C Leader W1 Start End ....... ....... ....... ....... ....... ....... ....... ....... 10 pitches (min.) 10 pitches (min.) Direction of Feed Item Carrier Width Carrier Length Carrier Depth Sprocket Hole Reel Outside Diameter Reel Inner Diameter Feed Hole Diameter Sprocket Hole Position Punch Hole Position Punch Hole Pitch Sprocket Hole Pitch Embossment Center Overall Tape Thickness Tape Width Reel Width Quantity per Reel Symbol A B C d D D1 D2 E F P P0 P1 T W W1 -- 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) Reliable Electronic Solutions 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. COPYRIGHT(c) 2005, BOURNS, INC. LITHO IN U.S.A. IPA0524 10/05 |
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