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SM16LC03
05051
Only One Name Means ProTek’Tion™
LOW CAPACITANCE TVS ARRAY
APPLICATIONS
✔ Wireless Communication Circuits
✔ RS-422, RS-432 & RS-485
✔ Low Voltage ASICs
✔ Ethernet - 10/100 Base T
IEC COMPATIBILITY (EN61000-4)
✔ 61000-4-2 (ESD): Air - 15kV, Contact - 8kV
✔ 61000-4-4 (EFT): 40A - 5/50ns
✔ 61000-4-5 (Surge): 12A, 8/20µs Level 1 (Line-Ground) & Level 2 (Line-Line)
FEATURES
✔ 500 Watts Peak Pulse Power per Line (tp=8/20µs)
✔ 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
✔ ✔
thru
SM16LC36C
SO-16
MECHANICAL CHARACTERISTICS
✔ Molded JEDEC SO-16 Package
✔ Weight 0.15 grams (Approximate)
✔ 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
PIN CONFIGURATIONS
11
12
5
6
11
12
UNIDIRECTIONAL
CONFIGURATION
BIDIRECTIONAL
CONFIGURATION
15
16
1
2
15
16
13
14
3
4
13
14
10
9
78
10
9
1
3
2
105051.R7 8/03 www.protekdevices.com
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4
6
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DEVICE CHARACTERISTICS
MAXIMUM RATINGS @ 25°C Unless Otherwise Specified
SM16LC03
thru
SM16LC36C
PARAMETER
Peak Pulse Power (tp = 8/20µs) - See Figure 1
Operating Temperature
Storage Temperature
Forward Voltage @ 50mA, 300µs - Square Wave (Note 1) Volts1.5V
Note 1: Only applies to unidirectional devices.
SYMBOL VALUE
P
PP
T
J
T
STG
F
500 Watts
-55°C to 150°C
-55°C to 150°C
ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless Otherwise Specified
PA RT
NUMBER
(Notes 1 & 2)
SM16LC03
SM16LC03C
SM16LC05
SM16LC05C
SM16LC08
SM16LC08C
SM16LC12
SM16LC12C
SM16LC15
SM16LC15C
SM16LC24
SM16LC24C
SM16LC36
SM16LC36C
Note 1: Part numbers with a “C” suffix are bidirectional devices, i.e., SM16LC05C.
Note 2:
greater than 100V for each rectifier diode.
Unidirectional Devices Only:
RATED
STAND-OFF
VOLTAGE
V
WM
VOLTS
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
MINIMUM
BREAKDOWN
VOLTAGE
@ 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
40.0
40.0
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
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
@ IP = 1 A
V
C
VOLTS
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
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
@ 8/20µs
@ I
V
C
PP
23.0V @ 43A
23.0V @ 43A
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
MAXIMUM
LEAKAGE
CURRENT
@V
WM
I
D
µA
125
125
20
20
10
10
2
2
2
2
2
2
2
2
MAXIMUM
CAPACITANCE
@ 0V, 1 MHz
C
pF
15
15
15
15
15
15
15
15
15
15
15
15
15
15
UNITS
°C
°C
TEMPERATURE
COEFFICIENT
OF V
(BR)
θV
(BR)
mV/°C
-3
-3
3
3
9
9
16
16
17
17
26
26
36
36
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GRAPHS
SM16LC03
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SM16LC36C
10,000
1,000
100
- Peak Pulse Power - Watts
PP
P
10
0.1 1 10 100 1,000 10,000
PEAK PULSE POWER VS PULSE TIME
500W 8/20µs Waveform
t
- Pulse Duration - µs
d
FIGURE 3
POWER DERATING CURVE
FIGURE 1
100
80
60
40
% Of Rated Power
20
0
0 25 50 75 100 125 150
- Lead Temperature - °C
T
L
Peak Pulse Power
8/20µs
Average Power
FIGURE 2
120
PP
100
80
60
40
- Peak Pulse Current - % of I
20
PP
I
0
0 5 10 15 20 25 30
PULSE WAVE FORM
t
f
Peak Value I
-t
e
td = t
t - Time - µs
PP
IPP/2
FIGURE 4
OVERSHOOT & CLAMPING VOLTAGE FOR SM16LC05
40
30
20
10
5 Volts per Division
0
ESD Test Pulse: 25 kilovolt, 1/30ns (waveform)
TEST
WAVEFORM
PARAMETERS
tf = 8µs
td = 20µs
20 db
Ref 0 db
10 db per Division
-20 db
-50 db
INSERTION LOSS - SM16LC12
FIGURE 5
100 MHz per Division
RETURN LOSS - SM16LC12
FIGURE 6
20 db
Ref 0 db
10 db per Division
-20 db
-50 db
100 MHz per Division
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SM16LC03
thru
SM16LC36C
APPLICATION 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 8/20µs
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
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.
TRANSCEIVER
D
D
Figure 1. Birectional Common-Mode Protection
LINE 1
LINE 2
LINE 3
LINE 4
LINE 5
R
R
LINE 6
LINE 7
LINE 8
16
14
15
13
1112
9
10
✔ 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.
1
2
4
3
6
5
8
7
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PACKAGE OUTLINE & DIMENSIONS
SM16LC03
thru
SM16LC36C
G
16
1
0.010” (0.25 MM)
-A-
16 PL
M
0.050” TYP
0.160” ± 0.005”
0.045” ± 0.005”
PACKAGE OUTLINE
9
P
-B-
8
K
D
S
T
B
S
A
8 PL
C
-T-
0.010” (0.25 MM)
0º - 7º
M
MOUNTING PAD
M
M
B
R X 45º
0.030” ± 0.005”
0.245” MIN
SO-16
PACKAGE DIMENSIONS
MILLIMETERS
DIM MIN MAX MIN MAX
A
B
C
D
F
J
F
G
J
K
P
R
NOTES
9.80
3.80
1.35
0.35
0.40
1.27 BSC
0.19
0.10
5.80
0.25
10.00
4.00
1.75
0.49
1.25
1.27 BSC
0.25
0.25
6.20
0.50
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
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,
SM16LC05-T7.
i.e.,
3. Suffix-T13 = 13 Inch Reel - 2,500 pieces per 16mm tape,
i.e.,
SM16LC05-T13.
4. No Suffix = Product Shipped in Tubes of 37 pcs per Tube.
INCHES
0.386
0.150
0.054
0.014
0.016
0.05 BSC
0.008
0.004
0.229
0.010
0.393
0.157
0.068
0.019
0.049
0.05 BSC
0.009
0.009
0.244
0.019
COPYRIGHT © ProTek Devices 2003
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.
Outline & Dimensions: Rev 1 - 11/01, 06007
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
5 www.protekdevices.com05051.R7 8/03
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