05066
PSOT03LC
thru
Only One Name Means ProT
ek’Tion™
PSOT36LC
UL
TRA LOW CAPACIT
ANCE TVS ARRA
Y
APPLICA
TIONS
✔
Ethernet - 10/100 Base T
✔
Cellular Phones
✔
FireWire
✔
Audio/Video Inputs
✔
Portable Electronics
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, 8/20µs - Level 1(Line-Ground) & Level 2(Line-Line)
FEA
TURES
✔
ESD Protection > 40 kilovolts
✔
500 Watts Peak Pulse Power per Line (tp = 8/20µs)
✔
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
SOT-23
PIN CONFIGURA
TION
1
3
2
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PSOT36LC
DEVICE CHARACTERISTICS
MAXIMUM RATINGS @ 25°C Unless Otherwise Specified
PARAMETER
Peak Pulse Power - t
p
= 8/20µs (See Figure 1)
Operating Temperature
Storage Temperature
SYMBOL
P
PP
T
J
T
STG
VALUE
500
-55°C to 150°C
-55°C to 150°C
UNITS
W
°C
°C
ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless Otherwise Specified
PART
NUMBER
(Note 1)
DEVICE
MARKING
RATED
STAND-OFF
VOLTAGE
MINIMUM
BREAKDOWN
VOLTAGE
(See Note 2)
@ 1mA
V
(BR)
VOLTS
4.0
6.0
8.5
13.3
16.7
26.7
40.0
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
@ I
P
= 1A
V
C
VOLTS
7.0
9.8
13.4
19.0
24.0
43.0
51.0
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
MAXIMUM
LEAKAGE
CURRENT
TYPICAL
CAPACITANCE
V
WM
VOLTS
PSOT03LC
PSOT05LC
PSOT08LC
PSOT12LC
PSOT15LC
PSOT24LC
PSOT36LC
03L
05L
08L
12L
15L
24L
36L
3.3
5.0
8.0
12.0
15.0
24.0
36.0
@8/20µs
V
C
@ I
PP
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
@V
WM
I
D
µA
125
20
10
1
1
1
1
@0V, 1 MHz
C
pF
5
5
5
5
5
5
5
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.
FIGURE 1
PEAK PULSE POWER VS PULSE TIME
10,000
I
PP
- Peak Pulse Current - % of I
PP
P
PP
- Peak Pulse Current - Watts
120
100
80
60
40
20
0
t
f
FIGURE 2
PULSE WAVE FORM
Peak Value I
PP
TEST
WAVEFORM
PARAMETERS
t
f
= 8µs
t
d
= 20µs
1,000
500W, 8/20µs Waveform
e
-t
100
t
d
= t I /2
PP
10
0.01
1
10
100
t
d
- Pulse Duration - µs
1,000
10,000
0
5
10
15
t - Time - µs
20
25
30
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PSOT36LC
GRAPHS
FIGURE 3
POWER DERATING CURVE
Peak Pulse Power
8/20µs
100
80
% Of Rated Power
60
40
20
Average Power
0
0
25
50
75
100
125
T
L
- Lead Temperature - °C
150
FIGURE 4
OVERSHOOT & CLAMPING VOLTAGE FOR PSOT03LC
40
5 Volts per Division
30
20
10
0
ESD Test Pulse: 7 kilovolt, 1/30ns (waveform)
FIGURE 5
TYPICAL CLAMPING VOLTAGE VS PEAK PULSE CURRENT FOR PSOT05LC
16
V
C
- Clamping Voltage - Volts
12
8
4
0
0
2
4
6
8
10
12
I
PP
- Peak Pulse Current - Amps
14
16
18
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PSOT36LC
APPLICA
TION 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 8/20µs 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.
Figure 1 - Common-Mode I/O Port Protection
I/O LINE
1
3
2
3
2
1
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.
I/O 1
ETHERNET TRANSCEIVER
GND
Figure 2 - Differential-Mode Ethernet Protection
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.
1
3
2
I/O 2
2
3
1
✔
✔
✔
✔
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PSOT36LC
PACKAGE OUTLINE & DIMENSIONS
PACKAGE OUTLINE
SOT-23
A
L
0º - 10º
3
B
1
2
S
K
J
PACKAGE DIMENSIONS
DIM
MILLIMETERS
MIN
MAX
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
INCHES
MIN
MAX
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
V
G
C
A
B
C
D
G
H
J
K
L
S
V
D
H
MOUNTING PAD
0.037” (0.95mm)
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.
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.
0.079” (2.00mm)
0.033” (0.85mm)
0.033” (0.85mm)
Outline & Dimensions: Rev 1 - 11/01, 06012
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.
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
05066.R4 8/03
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