PL IA NT Features CO M ■ *R oH S ■ ■ ■ 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 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. GND 1 I/O 2 4 REF 3 I/O The Bourns® device will meet IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT) and IEC 61000-4-5 (Surge) requirements. Electrical and Thermal Characteristics (@ TA = 25 °C Unless Otherwise Noted) Parameter Symbol Value Unit Peak Pulse Power (tp = 8/20 µs)1 PPP 300 W Peak Pulse Current (tp = 8/20 µs) IPP 30 A Operating Temperature TJ -55 ˚C to 150 ˚C ˚C TSTG -55 ˚C to 150 ˚C ˚C VF 1.0 V Storage Temperature Forward Surge Rating (10 mA, 50 µs @ 25 °C) Parameter Symbol CD143A-SR2.8 CD143A-SR3.3 Unit VBR 3.0 3.5 V Working Peak Voltage2 VWM 2.8 3.3 V Snap-Back Voltage Minimum @ 50 mA VSB 2.8 3.3 V VC 5.0 7.0 V VC 8.5 @ 5 A 15 @ 10 A V Breakdown Voltage Minimum @ 2 µA 2 Clamping Voltage Maximum @ IP = 1 A Clamping Voltage Maximum @ IP 2,3 Leakage Current @ VWM 2 Capacitance Typical @ 0 V, 1 MHz 4 2,3 ID 1.0 µA CJ 4.5 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. Dimensions A B D E DIMENSIONS: I J 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) G C H F A 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) 2.00 (0.079) 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) 1.80 (0.071) 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 Peak Pulse Power vs Pulse Time Pulse Wave Form IPP – Peak Pulse Current (% of IPP) PPP – Peak Pulse Current (W) 10,000 1,000 300 W, 8/20 µs Waveform 100 10 0.01 120 Test Waveform Parameters tt = 8 µs td = 20 µs tt 100 80 et 60 40 td = t|IPP/2 20 0 1 10 100 1,000 10,000 0 5 10 15 20 t – Time (µs) td – Pulse Duration (µs) 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. 25 30 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 B D1 D P A Trailer C Device Leader ....... ....... ....... ....... ....... ....... ....... ....... End 10 pitches (min.) W1 Start 10 pitches (min.) 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) 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© 2005, BOURNS, INC. LITHO IN U.S.A. IPA0524 10/05