SMDA03LC
thru
SMDA24LCC
1
05074.R6 4/05
www.protekdevices.com
LOW CAPACITANCE TVS ARRAY
Only One Name Means ProTek'TionTM
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)
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 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
05074
PIN CONFIGURATIONS
SO-8
1
2
4
8
3
5
6
7
1
2
4
8
3
5
6
7
UNIDIRECTIONAL
BIDIRECTIONAL
2
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SMDA24LCC
DEVICE CHARACTERISTICS
Note 1:
Only applies to unidirectional devices.
MAXIMUM RATINGS @ 25C Unless Otherwise Specified
Operating Temperature
SYMBOL
VALUE
-55
C to 150
C
C
C
-55
C to 150
C
UNITS
T
J
T
STG
PARAMETER
Storage Temperature
Peak Pulse Power (t
p
= 8/20s) - See Figure 1
P
PP
500
Watts
Forward Voltage @ 50mA, 300s - Square Wave (Note 1)
Volts
1.5
V
F
Note 1:
Part numbers with a "C" suffix are bidirectional devices, i.e., SMDA03LCC.
ELECTRICAL CHARACTERISTICS PER LINE @ 25C Unless Otherwise Specified
PART
NUMBER
(See Note 1)
DEVICE
MARKING
MINIMUM
BREAKDOWN
VOLTAGE
@ 1mA
V
(BR)
VOLTS
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
@ I
P
= 1A
V
C
VOLTS
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
@8/20s
V
C
@ I
PP
MAXIMUM
CAPACITANCE
0V @ 1 MHz
C
pF
SMDA03LC
SMDA03LCC
SMDA05LC
SMDA05LCC
SMDA08LC
SMDA08LCC
SMDA12LC
SMDA12LCC
SMDA15LC
SMDA15LCC
SMDA24LC
SMDA24LCC
SLA
SLB
SLC
SLD
SLE
SLF
SLG
SLH
SLJ
SLK
SLL
SLM
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
15
15
15
15
15
15
15
15
15
15
15
15
MAXIMUM
LEAKAGE
CURRENT
@V
WM
I
D
A
125
125
20
20
10
10
1
1
1
1
1
1
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
3
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05074.R6 4/05
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GRAPHS
0.1 1 10 100 1,000 10,000
t
d
- Pulse Duration - s
500W 8/20s Waveform
10
100
1,000
10,000
P
PP
- Peak Pulse Power - Watts
FIGURE 1
PEAK PULSE POWER VS PULSE TIME
FIGURE 4
OVERSHOOT & CLAMPING VOLTAGE FOR SMDA05LC
ESD Test Pulse: 5 kilovolt, 1/30ns (waveform)
5
V
o
lts per Division
-20
-10
0
10
20
0 25 50 75 100 125 150
T
L
- Lead Temperature - C
20
40
60
80
100
% Of Rated Power
Peak Pulse Power
8/20s
Average Power
FIGURE 3
POWER DERATING CURVE
0
0 5 10 15 20 25 30
t - Time - s
0
20
40
60
80
100
120
I
PP
- Peak Pulse Current - % of I
PP
TEST
WAVEFORM
PARAMETERS
t
f
= 8s
t
d
= 20s
t
f
Peak Value I
PP
e
-t
t
d
= t
I
PP
/2
FIGURE 2
PULSE WAVE FORM
4
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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 P
PP
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 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.
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.
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 1. Unidirectional Common-Mode Protection
5
6
7
8
1
2
3
4
LINE 4
LINE 3
LINE 2
LINE 1
GND PLANE
Figure 2. Bidirectional Common-Mode Protection
5
6
7
8
1
2
3
4
TPIN
TPIP
TPOP
TPON
ETHERNET REPEA
TER
5
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05074.R6 4/05
SMDA03LC
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SMDA24LCC
COPYRIGHT 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.
PACKAGE OUTLINE & DIMENSIONS
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
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 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.
Outline & Dimensions: Rev 1 - 11/01, 06009
A
B
C
D
F
G
J
K
P
R
4.80
3.80
1.35
0.35
0.40
1.27 BSC
0.18
0.10
5.80
0.25
5.00
4.00
1.75
0.49
1.250
1.27 BSC
0.25
0.25
6.20
0.50
0.189
0.150
0.054
0.014
0.016
0.05 BSC
0.007
0.004
0.229
0.010
0.196
0.157
0.068
0.019
0.049
0.05 BSC
0.009
0.008
0.244
0.019
DIM
MIN
MAX
MIN
MAX
MILLIMETERS
INCHES
PACKAGE DIMENSIONS
NOTES
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.
-A-
P
-B-
D
G
8
5
4
1
-T-
K
C
R X 45
J
F
0
- 10
0.010" (0.25 MM)
M
B
M
4 PL
0.010" (0.25 MM)
S
B
M
8 PL
T
A
S
PACKAGE OUTLINE
SO-8
0.030"
0.005"
0.050"
0.005"
0.160"
0.005"
0.045"
0.005"
0.245" MIN
MOUNTING PAD
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