PSOT03LC
thru
PSOT36LC
ULTRA LOW CAPACITANCE TVS ARRAY
105066.R6 3/07 www.protekdevices.com
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, 8/20µs - Level 1(Line-Gnd) & Level 2(Line-Line)
FEATURES
✔ ESD Protection > 40 kilovolts
✔ 500 Watts Peak Pulse Power per Line (tp=8/20µs)
✔ Low Clamping Voltage
✔ Available in 3V - 36V
✔ Ultra Low Capacitance: 5pF
✔ RoHS Compliant
MECHANICAL CHARACTERISTICS
✔ Molded JEDEC SOT-23 Package
✔ Weight 8 milligrams (Approximate)
✔ Available in Lead-Free Pure-Tin Plating(Annealed)
✔ Solder Reflow Temperature:
Pure-Tin - Sn, 100: 260-270°C
✔ Consult Factory for Leaded Device Availability
✔ Flammability Rating UL 94V-0
✔ 8mm Tape and Reel Per EIA Standard 481
✔ Marking: Marking Code
05066
PIN CONFIGURATION
SOT-23
2
3
1
查询PSOT03LC-LF-T13供应商
PSOT03LC
thru
PSOT36LC
205066.R6 3/07 www.protekdevices.com
DEVICE CHARACTERISTICS
MAXIMUM RATINGS @ 25°C Unless Otherwise Specified
Storage Temperature
SYMBOL VALUE
°C-55 to 150
UNITS
T
STG
PARAMETER
Peak Pulse Power (tp = 8/20µs) - See Figure 1
P
PP
500 Watts
MAXIMUM RATINGS @ 25°C Unless Otherwise Specified
Operating Temperature T
L
-55 to 150 °C
PA RT
NUMBER
(Note 1)
DEVICE
MARKING
MINIMUM
BREAKDOWN
VOLTAGE
(See Note 2)
@ 1mA
V
(BR)
VOLTS
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
@ IP = 1A
V
C
VOLTS
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
@8/20µs
VC @ 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
µA
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
ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless Otherwise Specified
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.
0 5 10 15 20 25 30
t - Time - µs
0
20
40
60
80
100
120
I
PP
- Peak Pulse Current - % of I
PP
TEST
WAVEFORM
PARAMETERS
tf = 8µs
td = 20µs
t
f
Peak Value I
PP
e
-t
td = t
IPP/2
FIGURE 2
PULSE WAVE FORM
0.1 1 10 100 1,000 10,000
td - Pulse Duration - µs
500W 8/20µs Waveform
10
100
1,000
10,000
P
PP
- Peak Pulse Power - Watts
FIGURE 1
PEAK PULSE POWER VS PULSE TIME
PSOT03LC
thru
PSOT36LC
305066.R6 3/07 www.protekdevices.com
GRAPHS
0 25 50 75 100 125 150
TL - Lead Temperature - °C
20
40
60
80
100
% Of Rated Power
Peak Pulse Power
8/20µs
Average Power
FIGURE 3
POWER DERATING CURVE
0
FIGURE 4
OVERSHOOT & CLAMPING VOLTAGE FOR PSOT03LC
ESD Test Pulse: 7 kilovolt, 1/30ns (waveform)
5 Volts 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 Voltage - Volts
0
4
8
12
16
FIGURE 5
TYPICAL CLAMPING VOLTAGE VS PEAK PULSE CURRENT FOR PSOT05LC
PSOT03LC
thru
PSOT36LC
405066.R6 3/07 www.protekdevices.com
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 PPP per line for an 8/20µs 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
APPLICATION NOTE
PSOT03LC
thru
PSOT36LC
505066.R6 3/07 www.protekdevices.com
SOT-23 PACKAGE OUTLINE & DIMENSIONS
COPYRIGHT © ProTek Devices 2007
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
A
L
B
S
G
3
2
1
D
H
V
J
C
K
0º - 10º
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)
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.
4. Suffix - LF = Lead-Free, Pure-Tin Plating,
i.e.,
PSOT05LC-LF-T7.
Outline & Dimensions: Rev 1 - 11/01, 06012
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