PTVSLC3D3V3B
Low Capacitance TVS
Description
The PTVSLC3D3V3B is a low capacitance transient voltage suppressor for
high speed data interface that designed to protect sensitive electronics
from damage or latch-up due to ESD lightning, and other voltage induced
transient events.
All pins are rated to withstand 15kV ESD pulses using the IEC61000-4-2
air discharge method, which can meet the requirement of level 4.
Feature
350W peak pulse power per line (t
P
= 8/20μs)
SOD-323 package
Replacement for MLV(0805)
Bidirectional configurations
Protects one power or I/O port
ESD protection > 15kV
Low clamping voltage
RoHS compliant
Transient protection for data lines to IEC61000-4-2(ESD)
Applications
Ethernet – 10/100/1000 base T
Cellular phones
Handheld-wireless systems
PDAs
USB interface
±30kV(air), ±30kV(contact); IEC61000-4-4 (EFT) 80A (5/50ns)
Mechanical Characteristics
Lead finish:100% matte Sn(Tin)
Mounting position: Any
Qualified max reflow temperature:260℃
Pure tin plating: 7 ~ 17 um
Pin flatness:≤3mil
Maximum Ratings and Thermal Characteristics(T
A
=25℃ unless otherwise noted)
Rating
Peak Pulse Power (t
p
=8/20μs)
Operating Temperature
Storage Temperature
Symbol
P
pp
T
J
T
STG
Value
350
-55 to +150
-55 to +150
Units
W
℃
℃
Rev.06.2
1
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Low Capacitance TVS
Electrical characteristics per line@25℃( unless otherwise specified)
Device
PTVSLC3D3V3B
PTVSLC3D3V3B
V
RWM
（V）
3.3
I
R
@ V
RWM
（μA）
1
V
BR
@ 1mA
（V）
4.0
V
C
@I
P
=1A
（V）
7.0
V
C
@I
PP
（V）
21@20A
C
j
@0V，1MHz
（pF）
3.5
I-V Curve Characteristics
Symbol
V
RWM
I
R
V
BR
I
T
I
PP
V
C
P
PP
C
J
I
F
V
F
Parameter
Peak Reverse Working Voltage
Reverse Leakage Current @ V
RWM
Breakdown Voltage @ I
T
Test Current
Maximum Reverse Peak Pulse Current
Clamping Voltage @ I
PP
Peak Pulse Power
Junction Capacitance
Forward Current
Forward Voltage @ I
F
I
PP
V
C
V
BR
V
RWM
I
T
I
R
I
PP
I
V
I
R
I
T
V
RWM
V
BR
V
C
Solder Reflow Recommendation
Peak Temp=257℃, Ramp Rate=0.802deg.
℃/sec
280
240
200
160
120
80
40
0
0
30
60
90
120
150
180
210
240
270
300
330
360
390
420
450
480
Time (sec)
Rev.06.2
2
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Low Capacitance TVS
Ratings and Characteristic Curves T
A
=25℃ unless otherwise noted
t
f
=8μs
100
80
60
40
20
0
% Of Rated Power
I
PP
100
80
60
40
20
0
I
PP
– Peak Pulse Current - % of
PTVSLC3D3V3B
t
P
=20μs(I
PP
/2)
0
5
10
15
t - Time -μs
20
25
30
0
25
50
75
100
125
T
L
– Lead Temperature -
℃
150
Fig 1.Pulse Waveform
Fig 2.Power Derating Curve
10000
40
Pulse waveform: tp=8/20us
V
C
-Clamping Voltage (V)
24
Peak Pulse Power (W)
32
1000
16
100
8
10
0
5
10
15
20
I
PP
-Peak pulse current(A)
25
30
1
10
100
Pulse Duration(us)
1000
Fig 3. Clamping voltage vs. Peak pulse current
Fig 4. Non Repetitive Peak Pulse Power vs. Pulse time
PCB Design
For TVS diodes a low-ohmic and low-inductive path to chassis earth is absolutely mandatory in order to achieve good ESD
protection. Novices in the area of ESD protection should take following suggestions to heart:
Do not use stubs, but place the cathode of the TVS diode directly on the signal trace.
Do not make false economies and save copper for the ground connection.
Place via holes to ground as close as possible to the anode of the TVS diode.
Use as many via holes as possible for the ground connection.
Keep the length of via holes in mind! The longer the more inductance they will have.
Rev.06.2
3
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Low Capacitance TVS
Product dimension (SOD-323)
PTVSLC3D3V3B
C
A
E
B
Dim
A
B
C
D
Inches
MIN
0.063
0.045
0.090
0.031
0.010
0.004
0.000
Millimeters
MIN
1.60
1.15
2.30
0.80
0.25
0.09
0.00
MAX
0.075
0.057
0.106
0.043
0.01
0.007
0.004
MAX
1.90
1.45
2.70
1.00
0.40
0.18
0.10
F
H
D
E
F
H
3.00
0.90
0.80
Suggested PCB
Layout
Unit:mm
Marking information
03C
Ordering information
Device
PTVSLC3D3V3B
Package
SOD-323 (Pb-Free)
Reel
7"
Shipping
3000 / Tape & Reel
Rev.06.2
4
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Low Capacitance TVS
PTVSLC3D3V3B
IMPORTANT NOTICE
and
are registered trademarks of
Prisemi Electronics Co., Ltd (Prisemi)
,Prisemi
reserves the right to make changes without further notice to any products herein. Prisemi makes
no warranty, representation or guarantee regarding the suitability of its products for any particular
purpose, nor does Prisemi
assume any liability arising out of the application or use of any
product or circuit, and specifically disclaims any and all liability, including without limitation
special, consequential or incidental damages. “Typical” parameters which may be provided in
Prisemi data sheets and/or specifications can and do vary in different applications and actual
performance may vary over time. All operating parameters, including “Typicals” must be
validated for each customer application by customer’s technical experts. Prisemi does not
convey any license under its patent rights nor the rights of others. The products listed in this
document are designed to be used with ordinary electronic equipment or devices, Should you
intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical
instruments, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety
devices), please be sure to consult with our sales representative in advance.
Website: http://www.prisemi.com
For additional information, please contact your local Sales Representative.
©Copyright 2009, Prisemi Electronics
is a registered trademark of Prisemi Electronics
.
All rights are reserved.
Rev.06.2
5
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