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05074
SMDA03LC
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Only One Name Means ProT ek'TionTM
SMDA24LCC
LOW CAPACIT ANCE TVS ARRA Y
APPLICA TIONS SCSI & IDE Interfaces Parallel & Serial Port Protection (RS-232) Ethernet - 10/100 Base T Test & Measurement Equipment Industrial Control: Low Voltage Sensors IEC COMPA TIBILITY (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) FEA TURES 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 in Lead-Free Versions MECHANICAL CHARACTERISTICS Molded JEDEC SO-8 Package Weight 70 milligrams (Approximate) Available in Tin-Lead or Lead-Free Pure-Tin Plating(Annealed) Solder Reflow Temperature: Tin-Lead - Sn/Pb, 85/15: 240-245C Pure-Tin - Sn, 100: 260-270C Flammability rating UL 94V-0 12mm Tape and Reel Per EIA Standard 481 Marking: Logo, Marking Code, Date Code & Pin One Defined By Dot on Top of Package
SO-8
PIN CONFIGURA TIONS
UNIDIRECTIONAL
BIDIRECTIONAL
8
7
6
5
8
7
6
5
1
2
3
4
1
2
3
4
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DEVICE CHARACTERISTICS MAXIMUM RATINGS @ 25C Unless Otherwise Specified
PARAMETER Peak Pulse Power (tp = 8/20s) - See Figure 1 Operating Temperature Storage Temperature Forward Voltage @ 50mA, 300s - Square Wave (Note 1)
Note 1: Only applies to unidirectional devices.
SYMBOL PPP TJ TSTG VF
VALUE 500 -55C to 150C -55C to 150C 1.5
UNITS Watts C C Volts
ELECTRICAL CHARACTERISTICS PER LINE @ 25C Unless Otherwise Specified
PART NUMBER (See Note 1) DEVICE MARKING RATED STAND-OFF VOLTAGE MINIMUM BREAKDOWN VOLTAGE MAXIMUM CLAMPING VOLTAGE (See Fig. 2) @ IP = 1A VC VOLTS 7.0 7.0 9.8 9.8 13.4 13.4 19.0 19.0 24.0 24.0 43.0 43.0 MAXIMUM CLAMPING VOLTAGE (See Fig. 2) MAXIMUM LEAKAGE CURRENT MAXIMUM CAPACITANCE
VWM VOLTS SMDA03LC SMDA03LCC SMDA05LC SMDA05LCC SMDA08LC SMDA08LCC SMDA12LC SMDA12LCC SMDA15LC SMDA15LCC SMDA24LC SMDA24LCC SLA SLB SLC SLD SLE SLF SLG SLH SLJ SLK SLL SLM 3.3 3.3 5.0 5.0 8.0 8.0 12.0 12.0 15.0 15.0 24.0 24.0
@ 1mA V(BR) VOLTS 4.5 4.5 6.0 6.0 8.5 8.5 13.3 13.3 16.7 16.7 26.7 26.7
@8/20s VC @ IPP 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
@VWM ID A 125 125 20 20 10 10 1 1 1 1 1 1
0V @ 1 MHz C pF 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.
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GRAPHS
FIGURE 1 PEAK PULSE POWER VS PULSE TIME
10,000
PPP - Peak Pulse Power - Watts
1,000
500W 8/20s Waveform
100
10 0.1
1
10 100 td - Pulse Duration - s
1,000
10,000
120
IPP - Peak Pulse Current - % of IPP
FIGURE 2 PULSE WAVE FORM
100 tf Peak Value IPP TEST WAVEFORM PARAMETERS tf = 8s td = 20s 80
% Of Rated Power
FIGURE 3 POWER DERATING CURVE
Peak Pulse Power 8/20s
100 80 60 40 20 0 0 5
e-t
60
40 20 Average Power 0
td = t I /2 PP
10
15 t - Time - s
20
25
30
0
25 50 75 100 125 TL - Lead Temperature - C
150
FIGURE 4 OVERSHOOT & CLAMPING VOLTAGE FOR SMDA05LC
20
5 Volts per Division
10
0
-10
-20
ESD Test Pulse: 5 kilovolt, 1/30ns (waveform)
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APPLICA TION 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) 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 is Line 2 is Line 3 is Line 4 is Pins 1-4 connected to Pin 5. connected to Pin 6. connected to Pin 7. connected to Pin 8. are connected to ground. Figure 1. Unidirectional Common-Mode Protection
LINE 1
LINE 2
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. 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.
1 2 3
GND PLANE
8
7
6
5
4
CIRCUIT BOARD LAYOUT RECOMMENDATIONS Circuit board layout is critical for Electromagnetic Compatibility (EMC) protection. The following guidelines are recommended: 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.
Figure 2. Bidirectional Common-Mode Protection
TPIN

TPIP
8
7
6
5
ETHERNET REPEATER
1
2
3
4
TPON
TPOP
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PACKAGE OUTLINE & DIMENSIONS
PACKAGE OUTLINE
-A-
SO-8
8
5 -BP
0.010" (0.25 MM) M BM
4 PL 1 4
PACKAGE DIMENSIONS
DIM 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
D G C R X 45
0 - 10 -TK
0.010" (0.25 MM) M TBS
J AS
F
8 PL
A B C D F G J K P R
NOTES
5.00 0.189 0.196 4.00 0.150 0.157 1.75 0.054 0.068 0.49 0.014 0.019 1.250 0.016 0.049 1.27 BSC 0.05 BSC 0.05 BSC 0.25 0.007 0.009 0.25 0.004 0.008 6.20 0.229 0.244 0.50 0.010 0.019
MOUNTING PAD
0.050" 0.005" 0.030" 0.005"
1. - T - = Seating Plane and Datum Surface. 2. Dimensions "A" and "B" are Datum. 3. Dimensions "A" and "B" do not include mold protrusion. 4. Maximum mold protrusion is 0.015" (0.380 mm) per side. 5. Dimensioning and tolerances per ANSI Y14.5M, 1982. 6. Dimensions are exclusive of mold flash and metal burrs. TAPE & REEL/BULK ORDERING NOMENCLATURE
0.160" 0.005"
0.245" MIN
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.
0.045" 0.005"
Outline & Dimensions: Rev 1 - 11/01, 06009
COPYRIGHT (c) ProTek Devices 2005 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.
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
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