RClamp0821P Datasheet

RClamp0821P
Ultra-Low Capacitance
1-Line ESD protection
PROTECTION
PRODUCTS - RailClamp
PROTECTION PRODUCTS
Description
Features
The RailClamp family is a series of ultra low capacitance
Transient Voltage Suppressors (TVS) designed to protect
high speed data interfaces. This series has been specifically designed to protect sensitive components which are
connected to high-speed data and transmission lines
from overvoltage caused by ESD (electrostatic discharge),
CDE (Cable Discharge Events), and EFT (electrical fast
transients).
The RClampTM0821P has a maximum capacitance of
only 0.50pF. This allows it to be used on circuits
operating in excess of 3GHz without signal attenuation. They may be used to meet the ESD immunity
requirements of IEC 61000-4-2, Level 4 (±15kV air,
±8kV contact discharge).
‹ Transient protection for data lines to
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IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (tp = 5/50ns)
Cable Discharge Event (CDE)
Ultra-small package (1.0 x 0.6 x 0.5mm)
Protects one data or I/O line
Low capacitance: 0.3pF typical
Low clamping voltage
Low operating voltage: 8.0V
Solid-state silicon-avalanche technology
Mechanical Characteristics
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The RClamp0821P is in a 2-pin, RoHS/WEEE compliant,
SLP1006P2 package measuring 1.0 x 0.6 x 0.5mm.
The leads are spaced at a pitch of 0.65mm and feature
a lead-free finish. Each device will protect one highspeed line operating at 8 volts. It gives the designer the
flexibility to protect single lines in applications where
arrays are not practical. The combination of small size,
low capacitance, and high ESD surge capability makes
them ideal for use in applications such as cellular
phones and digital video interfaces.
SLP1006P2 package
Molding compound flammability rating: UL 94V-0
Marking: Marking code
Packaging : Tape and Reel
Lead Finish: NiPdAu
RoHS/WEEE Compliant
Applications
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Dimensions
Cellular Handsets & Accessories
Digital Visual Interface (DVI)
Display Port
MDDI Ports
USB Ports
PCI Express
Serial ATA
Schematic & PIN Configuration
1.0
0.60
0.65
0.50
Maximum Dimensions (mm)
Revision 08/30/2007
SLP1006P2 (Bottom View)
1
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RClamp0821P
PROTECTION PRODUCTS
Absolute Maximum Rating
Rating
Symbol
Value
Units
Peak Pulse Power (tp = 8/20µs)
Ppk
100
Watts
Peak Pulse Current (tp = 8/20µs)
IPP
4
A
ESD per IEC 61000-4-2 (Air)
ESD per IEC 61000-4-2 (Contact)
VESD
+/- 15
+/- 8
kV
TJ
-55 to +125
°C
TSTG
-55 to +150
°C
Operating Temperature
Storage Temperature
Electrical Characteristics (T=25oC)
Parameter
Symbo l
Conditions
Minimum
Typical
Maximum
Units
8
V
Reverse Stand-Off Voltage
VRWM
Reverse Breakdown Voltage
V BR
It = 1mA
Reverse Leakage Current
IR
VRWM = 8V, T=25°C
1
µA
Clamp ing Voltage
VC
IPP = 1A, tp = 8/20µs
20
V
Clamp ing Voltage
VC
IPP = 4A, tp = 8/20µs
25
V
Junction Cap acitance
Cj
0.50
pF
 2007 Semtech Corp.
VR = 0V, f = 1MHz
2
10
V
0.30
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RClamp0821P
PROTECTION PRODUCTS
Typical Characteristics
Non-Repetitive Peak Pulse Power vs. Pulse Time
Power Derating Curve
110
10
90
% of Rated Power or I PP
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
75
100
125
150
Normalized Capacitance vs. Reverse Voltage
Clamping Voltage vs. Peak Pulse Current
2
30
f = 1 MHz
25
1.5
20
CJ(VR) / CJ(VR=0)
Clamping Voltage - VC (V)
50
Ambient Temperature - TA (oC)
Pulse Duration - tp (µs)
15
10
Waveform
Parameters:
tr = 8µs
td = 20µs
5
1
0.5
0
0
0
1
2
3
Peak Pulse Current - IPP (A)
4
0
5
1
ESD Clamping
(8kV Contact per IEC 61000-4-2)
2
3
Reverse Voltage - VR (V)
4
5
Insertion Loss S21
CH1 S21
LOG
6 dB / REF 0 dB
1: -.09200 dB
900 MHz
2: -.16970 dB
1.8 GHz
1
2
34
3: .00910 dB
2.5 GHz
0 dB
4: -.11980 dB
2.7 GHz
-6 dB
-12 dB
-18 dB
-24 dB
-30 dB
-36 dB
1
MHz
START. 030 MHz
 2007 Semtech Corp.
3
10
MHz
100
MHz
3
1
GHz GHz
STOP 3000. 000000 MHz
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RClamp0821P
PROTECTION PRODUCTS
Applications Information
Device Connection Options
Equivalent Circuit Diagram
These low capacitance TVS diodes are designed to
provide common mode protection for one high-speed line
or differential protection for one line pair. The device is
bidirectional and may be used on lines where the signal
polarity is positive and negative.
Circuit Board Layout Recommendations for Suppression of ESD.
Good circuit board layout is critical for the suppression
of ESD induced transients. The following guidelines are
recommended:
z Place the TVS near the input terminals or connectors to restrict transient coupling.
z Minimize the path length between the TVS and the
protected line.
z Minimize all conductive loops including power and
ground loops.
z The ESD transient return path to ground should be
kept as short as possible.
z Never run critical signals near board edges.
z Use ground planes whenever possible.
 2007 Semtech Corp.
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RClamp0821P
PROTECTION PRODUCTS
Applications Information - Spice Model
I/O Line
RClamp0821P Spice Model
Table 1 - RClamp0821P Spice Parameters
 2007 Semtech Corp.
Parameter
Unit
D1 (LCRD)
D2 (LCRD)
D3 (T VS)
IS
Amp
1.0E-20
1.0E-20
2.0E-12
BV
Volt
100
100
13.7
VJ
Volt
0 .7
0.7
0.6
RS
O hm
0.458
0.89
0.8
IBV
Amp
1 E -3
1E-3
1E-3
CJO
Farad
0.4E-12
0.4E-12
56E-12
TT
sec
2.541E-9
2.541E-9
2.541E-9
M
--
0.01
0.01
0.23
N
--
1.1
1.1
1.1
EG
eV
1.11
1.11
1.11
5
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RClamp0821P
PROTECTION PRODUCTS
Outline Drawing - SLP1006P2
A
B
D
DIMENSIONS
INCHES
MILLIMETERS
DIM
MIN NOM MAX MIN NOM MAX
E
TOP VIEW
A
SEATING
PLANE
aaa C
C
A1
A
A1
b
D
E
e
L
R
N
aaa
bbb
.016 .020 .022
.000 .001 .002
.018 .020 .022
.035 .039 .043
.020 .024 .028
.026 BSC
.008 .010 .012
.002 .004 .006
2
.003
.004
0.40 0.50 0.55
0.00 0.03 0.05
0.45 0.50 0.55
0.90 1.00 1.10
0.50 0.60 0.70
0.65 BSC
0.20 0.25 0.30
0.05 0.10 0.15
2
0.08
0.10
PIN 1 ID
R
bxN
bbb
C A B
2x L
e
BOTTOM VIEW
NOTES:
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
Land Pattern - SLP1006P2
DIMENSIONS
Y
(C)
DIM
C
G
X
Y
Z
Z
G
X
INCHES
(.033)
.012
.024
.022
.055
MILLIMETERS
(0.85)
0.30
0.60
0.55
1.40
NOTES:
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
2. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY.
CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR
COMPANY'S MANUFACTURING GUIDELINES ARE MET.
 2007 Semtech Corp.
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RClamp0821P
PROTECTION PRODUCTS
Marking Code
Ordering Information
Part Number
Qty per R eel R eel Size
RClamp0821P.TCT
NN
3,000
7 Inch
Note: Lead finish is lead-free NiPdAu.
RailClamp and RClamp are marks of Semtech Corporation.
PIN 1 ID
Tape and Reel Specification
A0
B0
0.69 +/-0.10 mm
K0
1.19 +/-0.10 mm
0.66 +/-0.10 mm
Tape
Width
B, (Max)
D
D1
8 mm
4.2 mm
(.165)
1.5 + 0.1
mm - 0.0
mm (0.59
+.005
- .000)
0.8 mm
±0.25
(.031)
E
1.750±0.1
mm
(.069±.004)
F
K
(Max)
P
P0
P2
T
(Max)
W
3.5±0.05
mm
(.138±.002)
2.4 mm
(.094)
4.0±0.10
mm
(.157±.004)
4.0±0.1 mm
(.157±.004)
2.0±0.05
mm
(.079±.002)
0.4mm
(.016)
8.0 mm
+ 0.3 mm
- 0.1 mm
(.312±.012)
Contact Information
Semtech Corporation
Protection Products Division
200 Flynn Rd., Camarillo, CA 93012
Phone: (805)498-2111 FAX (805)498-3804
 2007 Semtech Corp.
7
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