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05051
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Only One Name Means ProT ek'TionTM
SM16LC36C
LOW CAPACIT ANCE TVS ARRA Y
APPLICA TIONS Wireless Communication Circuits RS-422, RS-432 & RS-485 Low Voltage ASICs Ethernet - 10/100 Base T 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-Ground) & Level 2 (Line-Line) FEA TURES 500 Watts Peak Pulse Power per Line (tp=8/20s) Unidirectional & Bidirectional Configuration ESD Protection > 40 kilovolts Available in Multiple Voltage Types: 3.3V to 36V Protects Up to Eight (8) Lines LOW CAPACITANCE: 15pF RoHS Compliant in Lead-Free Versions MECHANICAL CHARACTERISTICS Molded JEDEC SO-16 Package Weight 0.15 grams (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 16mm Tape and Reel Per EIA Standard 481 Marking: Logo, Part Number, Date Code & Pin One Defined By Dot on Top of Package
SO-16
PIN CONFIGURA TIONS
16 15 14 13 12 11 10 9
UNIDIRECTIONAL CONFIGURATION
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
BIDIRECTIONAL CONFIGURATION
1
2
3
4
5
6
7
8
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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) Soldering Temperature for 10 seconds
Note 1: Only applies to unidirectional devices.
SYMBOL PPP TJ TSTG VF TL
VALUE 500 -55C to 150C -55C to 150C 1.5 265
UNITS Watts C C Volts C
ELECTRICAL CHARACTERISTICS PER LINE @ 25C Unless Otherwise Specified
PART NUMBER (Notes 1 & 2) RATED STAND-OFF VOLTAGE MINIMUM BREAKDOWN VOLTAGE @ 1mA V(BR) VOLTS MAXIMUM CLAMPING VOLTAGE (See Fig. 2) @ IP = 1 A VC VOLTS MAXIMUM CLAMPING VOLTAGE (See Fig. 2) @ 8/20s VC @ IPP MAXIMUM LEAKAGE CURRENT @VWM ID A MAXIMUM TEMPERATURE CAPACITANCE COEFFICIENT OF V(BR) @ 0V, 1 MHz C pF V(BR) mV/C
V WM VOLTS
SM16LC03 SM16LC03C SM16LC05 SM16LC05C SM16LC08 SM16LC08C SM16LC12 SM16LC12C SM16LC15 SM16LC15C SM16LC24 SM16LC24C SM16LC36 SM16LC36C
3.3 3.3 5.0 5.0 8.0 8.0 12.0 12.0 15.0 15.0 24.0 24.0 36.0 36.0
4.5 4.5 6.0 6.0 8.5 8.5 13.3 13.3 16.7 16.7 26.7 26.7 40.0 40.0
7.0 7.0 9.8 9.8 13.4 13.4 19.0 19.0 25.5 25.5 40.0 40.0 53.0 53.0
20.0V @ 35A 20.0V @ 35A 24.0V @ 42A 24.0V @ 42A 26.0V @ 30A 26.0V @ 30A 33.0V @ 21A 33.0V @ 21A 39.0V @ 15A 39.0V @ 15A 57.0V @ 10A 57.0V @ 10A 72.0V @ 7.0A 72.0V @ 7.0A
125 125 20 20 10 10 2 2 2 2 2 2 2 2
15 15 15 15 15 15 15 15 15 15 15 15 15 15
-3 -3 3 3 9 9 16 16 17 17 26 26 36 36
Note 1: Part numbers with a "C" suffix are bidirectional devices, i.e., SM16LC05C. Note 2: Unidirectional Devices Only: Do not surge from pins 16 to 1, 15 to 2, 14 to 3, 13 to 4, 12 to 5, 11 to 6, 10 to 7 and 9 to 8. PIV typically greater than 100V for each rectifier diode.
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GRAPHS
FIGURE 1 PEAK PULSE POWER VS PULSE TIME
IPP - Peak Pulse Current - % of IPP
10,000
PPP - Peak Pulse Power - Watts
120 100 80 60 40 20 0 tf
FIGURE 2 PULSE WAVE FORM
Peak Value IPP TEST WAVEFORM PARAMETERS tf = 8s td = 20s
1,000
500W 8/20s Waveform
e-t
100
td = t I /2 PP
10 0.1
1
10 100 td - Pulse Duration - s
1,000
10,000
0
5
10
15 t - Time - s
20
25
30
FIGURE 3 POWER DERATING CURVE
100 80
% Of Rated Power
FIGURE 4 OVERSHOOT & CLAMPING VOLTAGE FOR SM16LC05
40
Peak Pulse Power 8/20s
5 Volts per Division
30
60
20
40 20 Average Power 0 0 25 50 75 100 125 TL - Lead Temperature - C 150
10
0
ESD Test Pulse: 25 kilovolt, 1/30ns (waveform)
FIGURE 5 INSERTION LOSS - SM16LC12
FIGURE 6 RETURN LOSS - SM16LC12
20 db
10 db per Division 10 db per Division
20 db
Ref 0 db
Ref 0 db
-20 db
-20 db
-50 db 100 MHz per Division 05051.R10 4/05 3
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APPLICA TION NOTE
The SM16LC & SM16LCxxC 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 unidiretional and bidirectional protection, with a surge capability of 500 Watts PPP per line for an 8/20s waveform and ESD protection > 40kV. BIDIRECTIONAL COMMON-MODE CONFIGURATION (Figure 1) Ideal for RS-485 applications, the SM16LCxxC Series provides up to eight (8) lines of protection in a common-mode configuration as depicted in Figure 1. This low capacitance series allows the transceiver or telecommunications circuit to operate safely without significant signal distortion. Circuit connectivity is as follows: Lines 1 is connected to Pin 9. Line 2 is connected to Pin 10. Line 3 is connected to Pin 11. Line 4 is connected to Pin 12. Line 5 is connected to Pin 13. Line 6 is connected to Pin 14. Line 7 is connected to Pin 15. Line 8 is connected to Pin 16. Pins 1-8 are connected to ground. CIRCUIT BOARD LAYOUT RECOMMENDATIONS
LINE 5
Figure 1. Birectional Common-Mode Protection
TRANSCEIVER D LINE 1 LINE 2 LINE 3 D LINE 4
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.
R
LINE 6 LINE 7
R
LINE 8
16
15
14
13
12
11
10
9

1
2
3
4
5
6
7
8
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.
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PACKAGE OUTLINE & DIMENSIONS
PACKAGE OUTLINE
-A-
SO-16
16
9
-B- P 1 8
0.010" (0.25 MM)
M BM
8 PL
PACKAGE DIMENSIONS
DIM MILLIMETERS MIN MAX 9.80 3.80 1.35 0.35 0.40 1.27 BSC 0.19 0.10 5.80 0.25 INCHES MIN MAX
G C 0 - 7 -TK 16 PL
0.010" (0.25 MM) M TBS
M
R X 45
D AS
F
J
A B C D F G J K P R
NOTES
0.393 10.00 0.386 4.00 0.150 0.157 0.068 1.75 0.054 0.49 0.014 0.019 1.25 0.016 0.049 1.27 BSC 0.05 BSC 0.05 BSC 0.25 0.008 0.009 0.009 0.25 0.004 6.20 0.229 0.244 0.50 0.010 0.019
MOUNTING PAD
0.050" TYP 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 protrusions. 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 16mm tape, i.e., SM16LC05-T7. 3. Suffix-T13 = 13 Inch Reel - 2,500 pieces per 16mm tape, i.e., SM16LC05-T13. 4. Suffix - LF = Lead-Free, Pure-Tin Plating, i.e., SM16LC05C-LF-T7. 5. No Suffix = Product Shipped in Tubes of 48 pcs per Tube.
0.045" 0.005"
Outline & Dimensions: Rev 1 - 11/01, 06007
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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