PTVSHC1TF12VU
Uni-Directional 12V High Capacitance TVS
Description
The PTVSHC1TF12VU transient voltage suppressor is designed to replace
multilayer varistors (MLVs) in portable applications such as cell phones,
notebook computers, and PDA’s. They feature large cross-sectional area
junctions for conducting high transient currents, offer desirable electrical
characteristics for board level protection, such as fast response time, lower
operating voltage, lower clamping voltage and no device degradation when
compared to MLVs. The PTVSHC1TF12VU protects sensitive semiconductor
components from damage or upset due to electrostatic discharge (ESD) and
other voltage induced transient events. The PTVSHC1TF12VU is available in
a SOD-123FL package with working voltages of 12 volt.
SOD-123FL(Top View)
Feature
4600W Peak pulse power per line (t
P
= 8/20μs)
SOD-123FL package
Response time is typically < 1 ns
Protect one I/O or power line
Low clamping Voltage
RoHS compliant
Transient protection for data lines to IEC 61000-4-2(ESD)
±30KV(air), ±30KV(contact); IEC 61000-4-4 (EFT) 40A (5/50ns)
Pin 1
Circuit Diagram
Pin 2
Applications
Cell phone handsets and accessories
Personal digital assistants (PDA’s)
Notebooks, desktops, and servers
Portable instrumentation
Cordless phones
Digital cameras
Peripherals
MP3 players
LE-T
Marking (Top View)
Mechanical Characteristics
Lead finish:100% matte Sn(Tin)
Mounting position: Any
Qualified max reflow temperature:260℃
Device meets MSL 1 requirements
Pure tin plating: 7 ~ 17 um
Pin flatness:≤3mil
1
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Rev.06.1
Transient Voltage Suppressor
Electronics Parameter
Symbol
V
RWM
I
R
V
BR
I
T
I
PP
V
C
P
PP
C
J
PTVSHC1TF12VU
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
V
C
V
BR
V
RWM
I
F
I
V
I
R
V
F
I
T
I
PP
Electrical characteristics per line@25℃( unless otherwise specified)
Parameter
Peak Reverse Working Voltage
Breakdown Voltage
Reverse Leakage Current
Clamping Voltage
Clamping Voltage
Junction Capacitance
Symbol
V
RWM
V
BR
I
R
V
C
V
C
C
j
Conditions
Min.
Typ.
Max.
12
Units
V
V
μA
V
V
pF
I
t
=1mA
V
RWM
=12V
I
PP
=80A
I
PP
=170A
V
R
=0V
t
P
= 8/20μs
t
P
= 8/20μs
f = 1MHz
13
15
1
20
27
21
29
1500
900
1300
Absolute maximum rating@25℃
Rating
Peak Pulse Power ( t
P
= 8/20μS )
Peak Pulse Current (t
p
=8/20μs)
Lead Soldering Temperature
Operating Temperature
Storage Temperature
Symbol
P
pp
I
pp
T
L
T
J
T
STG
Value
4600
170
260 (10 sec)
-55 to 150
-55 to 150
Units
W
A
℃
℃
℃
Rev.06.1
2
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Transient Voltage Suppressor
Typical Characteristics
100
80
60
40
20
0
t
f
=8μs
100
% Of Rated Power
80
60
40
20
0
PTVSHC1TF12VU
I
PP
– Peak Pulse Current - % of
I
PP
t
P
=20μs(I
PP
/2)
0
5
10
15
t - Time -μs
20
25
30
0
25
50
75
100
125
150
T
L
– Lead Temperature -
℃
Fig 1.Pulse Waveform
35
Pulse waveform: tp=8/20us
30
25
20
15
10
5
0
0
50
100
150
I
PP
-Peak pulse current (A)
200
1000
C-Junction capacitance (pF)
1200
f=1MHz
Fig 2.Power Derating Curve
V
C
-Clamping Voltage (V)
800
600
400
200
0
0
3
6
9
V
R
-Reverse voltage (V)
12
Fig 3. Clamping voltage vs. Peak pulse current
100000
Fig 4. Capacitance vs. Reveres voltage
600
450
Peak Pulse Power (W)
10000
I
R
(nA)
1000
150
100
1
10
100
Pulse Duration(us)
1000
300
0
0
25
50
Fig 5. Non Repetitive Peak Pulse Power vs. Pulse time
Rev.06.1
3
Fig 6. Typical Leakage Current vs. Temperature
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75
100
Temperature (ºC)
125
150
Transient Voltage Suppressor
Solder Reflow Recommendation
Peak Temp=257℃, Ramp Rate=0.802deg.
℃/sec
280
PTVSHC1TF12VU
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)
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.06.1
4
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Transient Voltage Suppressor
Product dimension (SOD-123FL)
D
PTVSHC1TF12VU
e
E
H
E
C
g
A
Dim
A
C
H
E
E
D
g
e
Inches
MIN
0.037
0.002
0.146
0.063
0.106
0.022
0.031
Millimeters
MAX
0.039
0.010
0.161
0.079
0.122
0.037
0.047
Typ
0.038
0.006
0.154
0.071
0.114
0.030
0.039
MIN
0.95
0.05
3.70
1.60
2.70
0.55
0.80
Typ
0.97
0.15
3.90
1.80
2.90
0.75
1.00
MAX
1.00
0.25
4.10
2.00
3.10
0.95
1.20
1.2
2.0
1.2
1.4
Suggested PCB Layout
Unit:mm
Ordering information
Device
PTVSHC1TF12VU
Rev.06.1
Package
SOD-123FL (Pb-Free)
5
Reel
7"
Shipping
3000 / Tape & Reel
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FPGA/CPLD
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