05074 SMDA03LC thru SMDA24LCC LOW CAPACITANCE TVS ARRAY APPLICATIONS SCSI & IDE Interfaces Parallel & Serial Port Protection (RS-232) Ethernet - 10/100 Base T Test & Measurement Equipment Industrial Control: Low Voltage Sensors IEC COMPATIBILITY (EN61000-4) 61000-4-2 (ESD): Air - 15kV, Contact - 8kV 61000-4-4 (EFT): 40A - 5/50ns 61000-4-5 (Surge): 12A, 8/20s - Level 1(Line-Gnd) & Level 2(Line-Line) SO-8 FEATURES 500 Watts Peak Pulse Power per Line (tp=8/20s) Unidirectional & Bidirectional Configurations Available in Multiple Voltage Types Ranging From 3V to 24V Protects Up to Four (4) Lines ESD Protection > 40 kilovolts Low Capacitance: 15pF RoHS Compliant MECHANICAL CHARACTERISTICS Molded JEDEC SO-8 Weight 70 milligrams (Approximate) Available in Lead-Free Pure-Tin Plating(Annealed) Solder Reflow Temperature: Pure-Tin - Sn, 100: 260-270C Consult Factory for Leaded Device Availability Flammability Rating UL 94V-0 12mm Tape and Reel Per EIA Standard 481 Marking: Marking Code, Logo, Date Code & Pin One Defined By Dot on Top of Package PIN CONFIGURATIONS UNIDIRECTIONAL 05074.R8 3/08 BIDIRECTIONAL 8 7 6 5 8 7 6 5 1 2 3 4 1 2 3 4 1 www.protekdevices.com SMDA03LC thru SMDA24LCC DEVICE CHARACTERISTICS MAXIMUM RATINGS @ 25C Unless Otherwise Specified PARAMETER SYMBOL VALUE UNITS PPP 500 Watts C Peak Pulse Power (tp = 8/20s) - See Figure 1 Operating Temperature Storage Temperature Forward Voltage @ 50mA, 300s - Square Wave (See Note 1) TL -55 to 150 TSTG -55 to 150 C VF 1.5 Volts Note 1: Only applies to unidirectional devices. ELECTRICAL CHARACTERISTICS PER LINE PART NUMBER (See Notes 1) SMDA03LC SMDA03LCC SMDA05LC SMDA05LCC SMDA08LC SMDA08LCC SMDA12LC SMDA12LCC SMDA15LC SMDA15LCC SMDA24LC SMDA24LCC DEVICE MARKING SLA SLB SLC SLD SLE SLF SLG SLH SLJ SLK SLL SLM @ 25C Unless Otherwise Specified RATED STAND-OFF VOLTAGE MINIMUM BREAKDOWN VOLTAGE MAXIMUM CLAMPING VOLTAGE (See Fig. 2) MAXIMUM CLAMPING VOLTAGE (See Fig. 2) MAXIMUM LEAKAGE CURRENT MAXIMUM CAPACITANCE (See Note 2) V WM VOLTS @ 1mA V(BR) VOLTS @ IP = 1A VC VOLTS @8/20s VC @ IPP @VWM ID A @0V, 1 MHz C pF 3.3 3.3 5.0 5.0 8.0 8.0 12.0 12.0 15.0 15.0 24.0 24.0 4.5 4.5 6.0 6.0 8.5 8.5 13.3 13.3 16.7 16.7 26.7 26.7 7.0 7.0 9.8 9.8 13.4 13.4 19.0 19.0 24.0 24.0 43.0 43.0 10.9V @ 43.0A 10.9V @ 43.0A 13.5V @ 42.0A 13.5V @42.0A 16.9V @ 34.0A 16.9V @ 34.0A 25.9V @ 27.0A 25.9V @ 27.0A 30.0V @ 17.0A 30.0V @ 17.0A 49.0V @ 12.0A 49.0V @ 12.0A 125 125 20 20 10 10 1 1 1 1 1 1 15 15 15 15 15 15 15 15 15 15 15 15 Note 1: Part numbers with a "C" suffix are bidirectional devices, i.e., SMDA03LCC. 05074.R8 3/08 2 www.protekdevices.com SMDA03LC thru SMDA24LCC GRAPHS FIGURE 1 PEAK PULSE POWER VS PULSE TIME PPP - Peak Pulse Power - Watts 10,000 500W 8/20s Waveform 1,000 100 10 0.1 10 100 td - Pulse Duration - s 1,000 10,000 FIGURE 2 PULSE WAVE FORM 120 FIGURE 3 POWER DERATING CURVE 100 tf 100 TEST WAVEFORM PARAMETERS tf = 8s td = 20s Peak Value IPP 80 e-t 60 40 td = t I /2 PP 20 Peak Pulse Power 8/20s 80 % Of Rated Power IPP - Peak Pulse Current - % of IPP 1 60 40 20 Average Power 0 0 0 5 10 15 t - Time - s 20 25 0 30 25 50 75 100 125 TL - Lead Temperature - C 150 FIGURE 4 OVERSHOOT & CLAMPING VOLTAGE FOR SMDA05LC 5 Volts per Division 20 10 0 -10 -20 ESD Test Pulse: 5 kilovolt, 1/30ns (waveform) 05074.R8 3/08 3 www.protekdevices.com SMDA03LC thru SMDA24LCC APPLICATION NOTE The SMDAxxLC & SMDAxxLCC Series are TVS arrays designed to protect I/O or data lines from the damaging effects of ESD, EFT and other types of surges. This product series provides both unidirectional and bidirectional protection, with a surge capability of 500 Watts PPP per line for an 8/20s waveform and ESD protection > 40kV. UNIDIRECTIONAL COMMON-MODE CONFIGURATION(Figure 1) Figure 1. Unidirectional Common-Mode Protection The SMDAxxLC Series provides up to four (4) lines of protection in a common-mode configuration as depicted in Figure 1. Circuit connectivity is as follows: LINE 1 LINE 2 Line 1 is connected to Pin 5. Line 2 is connected to Pin 6. Line 3 is connected to Pin 7. Line 4 is connected to Pin 8. Pins 1-4 are connected to ground. LINE 3 LINE 4 BIDIRECTIONAL COMMON-MODE CONFIGURATION (Figure 2) Ideal for Ethernet applications, SMDAxxLCC Series provides up to four (4) lines of protection in a common-mode configuration as depicted in Figure 2. 8 7 6 5 1 2 3 4 Circuit connectivity is as follows: TPIN is connected to Pin 5. TPIP is connected to Pin 6. TPON is connected to Pin 1. TPOP is connected to Pin 2. Pins 3, 4, 7 & 8 are connected to ground. CIRCUIT BOARD LAYOUT RECOMMENDATIONS GND PLANE Circuit board layout is critical for Electromagnetic Compatibility (EMC) protection. The following guidelines are recommended: Figure 2. Bidirectional Common-Mode Protection The protection device should be placed near the input terminals or connectors, the device will divert the transient current immediately before it can be coupled into the nearby traces. The path length between the TVS device and the protected line should be minimized. All conductive loops including power and ground loops should be minimized. The transient current return path to ground should be kept as short as possible to reduce parasitic inductance. Ground planes should be used whenever possible. For multilayer PCBs, use ground vias. TPIN TPIP 8 7 6 5 1 2 3 4 ETHERNET REPEATER TPON TPOP 05074.R8 3/08 4 www.protekdevices.com SMDA03LC thru SMDA24LCC SO-8 PACKAGE OUTLINE & DIMENSIONS PACKAGE OUTLINE SO-8 -A- 8 5 + 0.010 (0.25 MM) M B M 4 PL -B - P 1 G PACKAGE DIMENSIONS 4 DIM A B C D F G J K P R D C R x 45 0 - 10 -T- K 0.010 (0.25 MM) M T B S A S 8 PL + J F MILLIMETERS MIN MAX 4.80 3.80 1.35 0.35 0.40 1.27 BSC 0.18 0.10 5.80 0.25 INCHES MIN MAX 0.196 5.00 0.189 0.150 0.157 4.00 1.75 0.054 0.068 0.49 0.014 0.019 0.049 1.250 0.016 1.27 BSC 0.05 BSC 0.05 BSC 0.25 0.007 0.009 0.004 0.008 0.25 6.20 0.229 0.244 0.019 0.50 0.010 NOTES 1. 2. 3. 4. 5. 6. MOUNTING PAD 0.050 0.005 0.030 0.005 - T - = Seating Plane and Datum Surface. Dimensions "A" and "B" are Datum. Dimensions "A" and "B" do not include mold protrusion. Maximum mold protrusion is 0.015" (0.380 mm) per side. Dimensioning and tolerances per ANSI Y14.5M, 1982. Dimensions are exclusive of mold flash and metal burrs. TAPE & REEL/BULK ORDERING NOMENCLATURE 0.160 0.005 1. Surface mount product is taped and reeled in accordance with EIA-481. 2. Suffix-T7 = 7 Inch Reel - 1,000 pieces per 12mm tape, i.e. SMDA05LC-T7. 3. Suffix-T13 = 13 Inch Reel - 2,500 pieces per 12mm tape, i.e., SMDA05LC-T13. 4. Suffix - LF = Lead-Free, Pure-Tin Plating, i.e., SMDA05LC-LF-T7. 5. No Suffix = Product Shipped in Tubes of 98 pcs per Tube. 0.245 MIN 0.045 0.005 COPYRIGHT (c) ProTek Devices 2007 SPECIFICATIONS: ProTek reserves the right to change the electrical and or mechanical characteristics described herein without notice (except JEDEC). DESIGN CHANGES: ProTek reserves the right to discontinue product lines without notice, and that the final judgement concerning selection and specifications is the buyer's and that in furnishing engineering and technical assistance, ProTek assumes no responsibility with respect to the selection or specifications of such products. 05074.R8 3/08 5 ProTek Devices 2929 South Fair Lane, Tempe, AZ 85282 Tel: 602-431-8101 Fax: 602-431-2288 E-Mail: sales@protekdevices.com Web Site: www.protekdevices.com www.protekdevices.com