RClamp0524S
RailClamp®
Low Capacitance TVS Diode Array
PROTECTION PRODUCTS
Description
Features
RailClamps® are low capacitance TVS arrays designed
to protect high speed data interfaces. This series has
been specifically designed to protect sensitive components which are connected to data and transmission
lines from overvoltage caused by ESD (electrostatic
discharge), CDE (Cable Discharge Events), and EFT
(electrical fast transients).
The unique design incorporates two identical circuits.
Each circuit is comprised of surge rated, low capacitance steering diodes and a TVS diode in a single
package. During transient conditions, the steering
diodes direct the transient current to ground. The
internal TVS diode clamps the transient voltage to a
safe level. The RClamp0524S has a low maximum
capacitance of only 5pF per line. Each device will
protect up to four data lines. The dual circuits make it
ideal for applications like power over Ethernet (PoE)
where each signal pair sits at a different potential.
The RClampTM0524S is in a 6-pin, RoHS/WEEE compliant, SOT-23 package. The leads are finished with leadfree matte tin. They may be used to meet the ESD
immunity requirements of IEC 61000-4-2, Level 4
(±15kV air, ±8kV contact discharge).
ESD protection for high-speed data lines to
Mechanical Characteristics
JEDEC SOT-23 6L package
Molding compound flammability rating: UL 94V-0
Marking : S05
Packaging : Tape and Reel
RoHS/WEEE Compliant
Applications
Package Dimensions
PoE
Monitors and Flat Panel Displays
Digital Video Interface (DVI)
10/100/1000 Ethernet
Notebook Computers
Equivalent Circuit and PIN Configuration
1.6
1
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
Array of surge rated diodes with internal TVS Diode
Small package saves board space
Protects four I/O lines
Low capacitance: 5pF maximum
Low clamping voltage
Low operating voltage: 5.0V
Solid-state silicon-avalanche technology
2.8
2
2.9
1.0
6 Pin SOT-23 package
Nominal Dimensions in mm
Revision 04/24/2008
SOT-23 6L (Top View)
1
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RClamp0524S
PROTECTION PRODUCTS
Absolute Maximum Rating
R ating
Symbol
Value
Units
Peak Pulse Power (tp = 8/20μs)
Pp k
150
Watts
ESD per IEC 61000-4-2 (Air)
ESD per IEC 61000-4-2 (Contact)
VESD
15
8
kV
Lead Soldering Temperature
TL
260 (10 sec.)
°C
Operating Temperature
TJ
-55 to +125
°C
TSTG
-55 to +150
°C
Storage Temperature
Electrical Characteristics (T=25oC unless otherwise specified)
Parameter
Symbol
Conditions
Reverse Stand-Off Voltage
VRWM
Pin 2 or 4 to Pin 3
Pin 5 or 6 to Pin 1
Reverse Breakdown Voltage
V BR
It = 1mA
Pin 2 or 4 to Pin 3
Pin 5 or 6 to Pin 1
Reverse Leakage Current
IR
VRWM = 5V, T=25°C
Pin 2 or 4 to Pin 3
Pin 5 or 6 to Pin 1
1
μA
Clamp ing Voltage
VC
IPP = 1A, tp = 8/20μs
Pin 2 or 4 to Pin 3
Pin 5 or 6 to Pin 1
15
V
Clamp ing Voltage
VC
IPP = 1A, tp = 8/20μs
Pin 3 to Pin 2 or 4
Pin 1 to Pin 5 or 6
2
V
Clamp ing Voltage
VC
IPP = 6A, tp = 8/20μs
Pin 2 or 4 to Pin 3
Pin 5 or 6 to Pin 1
24
V
Clamp ing Voltage
VC
IPP = 6A, tp = 8/20μs
Pi n 2 to Pi n 4
Pi n 5 to Pi n 6
26
V
Junction Cap acitance
Cj
VR = 0V, f = 1MHz
Pin 2 or 4 to Pin 3
Pin 5 or 6 to Pin 1
5
pF
VR = 0V, f = 1MHz
Pi n 2 to 4
Pi n 5 to 6
© 2008 Semtech Corp.
2
Minimum
Typical
Maximum
Units
5
V
6
V
1.5
pF
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RClamp0524S
PROTECTION PRODUCTS
Typical Characteristics
Non-Repetitive Peak Pulse Power vs. Pulse Time
Power Derating Curve
10
110
90
% of Rated Power or PI P
Peak Pulse Power - PPP (kW)
100
1
0.1
80
70
60
50
40
30
20
10
0
0.01
0.1
1
10
100
0
1000
25
50
Pulse Waveform
125
80
70
Clamping Voltage -VC (V)
90
e-t
60
50
40
td = IPP/2
30
20
20
Line to Line
15
Line to Gnd
10
Waveform
Parameters:
tr = 8µs
td = 20µs
5
10
0
0
0
5
10
15
20
25
30
0
1
2
Time (µs)
3
2.5
CJ(VR) / CJ(VR=0)
2
1.5
1
Waveform
Parameters:
tr = 8µs
td = 20µs
0.5
0
0
1
2
3
4
5
6
7
6
1.5
1.4
1.3
1.2
1.1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
7
f = 1 MHz
0
Peak Pulse Current (A)
© 2008 Semtech Corp.
3
4
5
Peak Pulse Current - IPP (A)
Normalized Capacitance vs. Reverse Voltage
Forward Voltage vs. Forward Current
Forward Voltage (V)
150
25
Waveform
Parameters:
tr = 8µs
td = 20µs
100
PP
100
Clamping Voltage vs. Peak Pulse Current
110
Percent of I
75
Ambient Temperature - TA (oC)
Pulse Duration - tp (μs)
3
1
2
3
Reverse Voltage - VR (V)
4
5
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RClamp0524S
PROTECTION PRODUCTS
Applications Information
Insertion Loss S21
Analog Cross Talk
CH1 S21
CH1 S21
LOG
LOG
20 dB /REF 0 dB
6 dB / REF 0 dB
1: -.38340 dB
800 MHz
2: -.41460 dB
900 MHz
0 dB
12
3
-6 dB
4
-12 dB
3: -1.6371 dB
1.8 GHz
4: -6.3880 dB
2.5 GHz
-18 dB
5: -7.0638 dB
2.7 GHz
-24 dB
-30 dB
-36 dB
4
1
MHz
START.
10
MHz
100
MHz
MHz
3
1
GHz GHz
START. 030 MHz
STOP 3000. 000000 MHz
STOP 3 000. 000000 MHz
ESD Clamping
(8kV Contact per IEC 61000-4-2)
Note: Data is taken with a 10x attenuator
© 2008 Semtech Corp.
4
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RClamp0524S
PROTECTION PRODUCTS
RJ45
Figure 1 - GbE Ethernet Differential Protection
Figure 2 - 10/100 Ethernet Differential Mode Protection
© 2008 Semtech Corp.
5
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RClamp0524S
PROTECTION PRODUCTS
Outline Drawing
Drawing -SOT23
- SO-8 6L
Outline
DIM
A
e1
2X E/2
A
A1
A2
b
c
D
E1
E
e
e1
L
L1
N
01
aaa
bbb
ccc
D
N
EI
1
E
2
ccc C
2X N/2 TIPS
e
B
D
aaa C
A2
SEATING
PLANE
DIMENSIONS
MILLIMETERS
INCHES
MIN NOM MAX MIN NOM MAX
.057
.035
.006
.000
.035 .045 .051
.020
.010
.009
.003
.110 .114 .122
.060 .063 .069
.110 BSC
.037 BSC
.075 BSC
.012 .018 .024
(.024)
6
10°
0°
.004
.008
.008
1.45
0.90
0.00
0.15
.90 1.15 1.30
0.25
0.50
0.08
0.22
2.80 2.90 3.10
1.50 1.60 1.75
2.80 BSC
0.95 BSC
1.90 BSC
0.30 0.45 0.60
(0.60)
6
0°
10°
0.10
0.20
0.20
A
H
A1
C
bxN
bbb
c
GAGE
PLANE
C A-B D
0.25
L
01
(L1)
SEE DETAIL
DETAIL
A
A
SIDE VIEW
NOTES:
1.
CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
2. DATUMS -A- AND -B- TO BE DETERMINED AT DATUM PLANE -H3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS
OR GATE BURRS.
Land Pattern -SOT23 6L
X
DIM
(C)
G
C
G
P
X
Y
Z
Z
Y
P
DIMENSIONS
INCHES
MILLIMETERS
(.098)
.055
.037
.024
.043
.141
(2.50)
1.40
0.95
0.60
1.10
3.60
NOTES:
1.
© 2008 Semtech Corp.
THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY.
CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR
COMPANY'S MANUFACTURING GUIDELINES ARE MET.
6
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RClamp0524S
PROTECTION PRODUCTS
Marking Codes
Ordering Information
S05
Part Number
Lead
Finish
Qty per
Reel
R eel Size
RClamp 0524S.TCT
Pb free
3,000
7 Inch
Tape and Reel Specification
User Direction of feed
A0
3.23 +/-0.05 mm
B0
K0
3.17 +/-0.05 mm
Tape
Width
B, (Max)
D
8 mm
4.2 mm
(.165)
1.5 + 0.1 mm
- 0.0 mm
1.37 +/-0.05 mm
D1
E
1.0 mm
±0.05
1.750±.10
mm
F
K
(MAX)
P
P0
P2
T(MAX)
3.5±0.05
mm
2.4 mm
4.0±0.1
mm
4.0±0.1
mm
2.0±0.05
mm
0.4 mm
W
8.0 mm
+ 0.3 mm
- 0.1 mm
Contact Information
Semtech Corporation
Protection Products Division
200 Flynn Road, Camarillo, CA 93012
Phone: (805)498-2111 FAX (805)498-3804
© 2008 Semtech Corp.
7
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