PSOT03LC
thru
PSOT36LC
1
05066.R4 8/03
www.protekdevices.com
ULTRA LOW CAPACITANCE TVS ARRAY
Only One Name Means ProTek'TionTM
APPLICATIONS
Ethernet - 10/100 Base T
Cellular Phones
FireWire
Audio/Video Inputs
Portable Electronics
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-Ground) & Level 2(Line-Line)
FEATURES
ESD Protection > 40 kilovolts
500 Watts Peak Pulse Power per Line (tp = 8/20s)
Low Clamping Voltage
Available in Multiple Voltage Types Ranging from 3V to 36V
ULTRA LOW CAPACITANCE: 5pF
MECHANICAL CHARACTERISTICS
Molded JEDEC SOT-23
Weight 14 milligrams (Approximate)
Flammability rating UL 94V-0
8mm Tape and Reel Per EIA Standard 481
Device Marking: Marking Code
05066
PIN CONFIGURATION
SOT-23
2
3
1
2
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DEVICE CHARACTERISTICS
MAXIMUM RATINGS @ 25C Unless Otherwise Specified
SYMBOL
VALUE
UNITS
PARAMETER
Operating Temperature
-55
C to 150
C
C
C
-55
C to 150
C
T
J
T
STG
Storage Temperature
Peak Pulse Power - t
p
= 8/20s (See Figure 1)
P
PP
500
W
Note 1:
Positive potential is applied from pin 1 to 2; pin 2 is ground.
Note 2:
Do not test or surge from pin 2 to 1. PIV typically greater than 100V for the rectifier diode.
ELECTRICAL CHARACTERISTICS PER LINE @ 25C Unless Otherwise Specified
PART
NUMBER
(Note 1)
DEVICE
MARKING
MINIMUM
BREAKDOWN
VOLTAGE
(See Note 2)
@ 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
TYPICAL
CAPACITANCE
@0V, 1 MHz
C
pF
PSOT03LC
PSOT05LC
PSOT08LC
PSOT12LC
PSOT15LC
PSOT24LC
PSOT36LC
03L
05L
08L
12L
15L
24L
36L
4.0
6.0
8.5
13.3
16.7
26.7
40.0
7.0
9.8
13.4
19.0
24.0
43.0
51.0
10.9V @ 43.0A
13.5V @ 42.0A
16.9V @ 34.0A
25.9V @ 21.0A
30.0V @ 17.0A
49.0V @ 12.0A
76.8V @ 9.0A
5
5
5
5
5
5
5
MAXIMUM
LEAKAGE
CURRENT
@V
WM
I
D
A
125
20
10
1
1
1
1
RATED
STAND-OFF
VOLTAGE
V
WM
VOLTS
3.3
5.0
8.0
12.0
15.0
24.0
36.0
FIGURE 2
PULSE WAVE FORM
FIGURE 1
PEAK PULSE POWER VS PULSE TIME
0.01 1 10 100 1,000 10,000
t
d
- Pulse Duration - s
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
10
100
1,000
10,000
P
PP
- Peak Pulse Current - Watts
500W, 8/20s Waveform
3
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GRAPHS
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
FIGURE 4
OVERSHOOT & CLAMPING VOLTAGE FOR PSOT03LC
ESD Test Pulse: 7 kilovolt, 1/30ns (waveform)
5
V
o
lts per Division
0
10
20
30
40
0 2 4 6 8 10 12 14 16 18
I
PP
- Peak Pulse Current - Amps
V
C
- Clamping
V
oltage -
V
olts
0
4
8
12
16
FIGURE 5
TYPICAL CLAMPING VOLTAGE VS PEAK PULSE CURRENT FOR PSOT05LC
4
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APPLICATION NOTE
The PSOTxxLC Series are low capacitance TVS arrays designed to protect I/O or data lines from the damaging effects of ESD or EFT. This product
series provides unidirectional & bidirectional protection, with a surge capability of 500 Watts P
PP
per line for an 8/20s waveform and ESD protection >
40 kilovolts.
BIDIRECTIONAL COMMON-MODE CONFIGRUATION (Figure 1)
Two PSOTxxLC devices, when used in paralell, provide protection in a
common-mode configuration as depicted in Figure 1.
Circuit connectivity is as follows:
I/O Line is connected to Device 1, Pin 1.
I/O Line is connect to Device 2, Pin 2.
Device 1, Pin 2 is connected to ground.
Device 2, Pin 1 is connected to ground.
Device 1 & 2, Pin 3 is not connected.
BIDIRECTIONAL DIFFERENTIAL-MODE CONFIGRUATION (Figure
1)
In addition, two PSOTxxLC devices, when used in paralell, provide
protection in a differential-mode configuration for Ethernet applications as
depicted in Figure 2.
Circuit connectivity is as follows:
I/O Line 1 is connected to Device 1, Pin 1.
I/O Line 1 is connect to Device 2, Pin 2.
I/O Line 2 is connected to Device 1, Pin 1.
I/O Line 2 is connect to Device 2, Pin 2.
Device 1 & 2, Pin 3 is not connected.
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 - Common-Mode I/O Port Protection
3
1
2
3
1
2
I/O LINE
GND
Figure 2 - Differential-Mode Ethernet Protection
3
1
2
3
1
2
I/O 1
I/O 2
ETHERNET TRANSCEIVER
5
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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.
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 ORDERING NOMENCLATURE
1. Surface mount product is taped and reeled in accordance
with EIA-481.
2. Suffix -T7 = 7 Inch Reel - 3,000 pieces per 8mm tape,
i.e.,
PSOT05LC-T7.
3. Suffix -T13 = 13 Inch Reel - 10,000 pieces per 8mm tape,
i.e.,
PSOT05LC-T13.
Outline & Dimensions: Rev 1 - 11/01, 06012
A
L
B
S
G
3
2
1
D
H
V
J
C
K
0
- 10
A
B
C
D
G
H
J
K
L
S
V
2.80
1.20
0.89
0.37
1.78
0.013
0.085
0.45
0.89
2.10
0.45
3.04
1.40
1.11
0.50
2.04
0.100
0.177
0.60
1.02
2.50
0.60
0.1102
0.0472
0.0350
0.0150
0.0701
0.0005
0.0034
0.0180
0.0350
0.0830
0.0177
0.1197
0.0551
0.0440
0.0200
0.0807
0.0040
0.0070
0.0236
0.0401
0.0984
0.0236
DIM
MIN
MAX
MIN
MAX
MILLIMETERS
INCHES
PACKAGE DIMENSIONS
NOTES
1. Dimensioning and tolerances per ANSI Y14.5M, 1985.
2. Controlling Dimension: Inches
3. Pin 3 is the cathode (Unidirectional Only).
4. Dimensions are exclusive of mold flash and metal burrs.
PACKAGE OUTLINE
SOT-23
MOUNTING PAD
0.037" (0.95mm)
0.033" (0.85mm)
0.079" (2.00mm)
0.033" (0.85mm)
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