RClamp2431TQ

RClamp2431TQ
Ultra-Low Capacitance
1-Line ESD protection
PROTECTION PRODUCTS - RailClamp®
Description
Features
RailClamp® TVS diodes are 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 RClamp2431TQ has a typical capacitance of only
0.35pF. This allows it to be used on Wi-Fi, RFID, and
other circuits operating in excess of 3GHz without
signal attenuation. It may be used to meet the ESD
immunity requirements of IEC 61000-4-2.
The RClamp2431TQ is in a 2-pin SLP1006P2T package
measuring 1.0 x 0.6 x 0.4mm. The leads are spaced
at a pitch of 0.65mm and feature a lead-free finish.
Each device will protect one high-speed line operating
up to 24 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 it ideal for
use in portable equipment such as cellular phones and
netbooks.
The RClamp2431TQ is qualified to AEC-Q100 Grade1
for use in Automotive environments.
‹ Transient protection for data lines to
IEC 6
1 000-4-2 (ESD)
61
IEC 6
61
1000-4-4 (EFT)
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Ultra-small package (1.0 x 0.6 x 0.4mm)
Protects one data line or one I/O pair
Low capacitance: 0.35pF (Typical)
Low clamping voltage
24V operating voltage
Solid-state silicon-avalanche technology
Qualified to AEC-Q100 Grade1 for Automotive
Mechanical Characteristics
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SLP1006P2T package
Molding compound flammability rating: UL 94V-0
Marking: Marking code
Packaging : Tape and Reel
Lead Finish: NiPdAu
Pb-Free, Halogen Free, RoHS/WEEE Compliant
Applications
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Package Dimensions
Automobile Antenna
CAN Bus Ports
Cellular Handsets & Accessories
Wi-Fi Interfaces
FeliCa / RFID
Firewire
Serial ATA
Schematic & Pin Configuration
1.0
0.60
0.65
0.40
SLP1006P2T (Bottom View)
Maximum Dimensions (mm)
Revision 11/18/2011
1
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RClamp2431TQ
PROTECTION PRODUCTS
Absolute
Maximum
Rating
Absolute
Maximum
Ratings
R ating
Symbol
Value
Units
Peak Pulse Power (tp = 8/20µs)
Pp k
100
Watts
Peak Pulse Current (tp = 8/20µs)
IP P
2
A
ESD p er IEC 61000-4-2 (Air)
ESD p er IEC 61000-4-2 (Contact)
VESD
+/- 13
+/- 8
kV
TJ
-40 to +125
°C
TSTG
-55 to +150
°C
Op erating Temp erature
Storage Temp erature
Electrical Characteristics (T=25OC unless otherwise specified)
Parameter
Symbol
Reverse Stand-Off Voltage
VRWM
Reverse Breakdown Voltage
V BR
Conditions
Minimum
It = 1mA
Typical
26.7
T=25°C
5
Maximum
Units
24
V
36
V
50
Reverse Leakage Current
IR
VRWM = 24V
Clamping Voltage
VC
IPP = 1A, tp = 8/20µs
45
V
Clamping Voltage
VC
IPP = 2A, tp = 8/20µs
50
V
Junction Capacitance
Cj
VR = 0V, f = 1MHz
© 2011 Semtech Corp.
T=125°C
2
T=25°C
T=125°C
500
0.35
0.5
1.0
nA
pF
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RClamp2431TQ
PROTECTION PRODUCTS
Typical Characteristics
Non-Repetitive Peak Pulse Power vs. Pulse Time
Power Derating Curve
120
100
% Rated Power or IPP (%)
Peak Pulse Power - P PP (kW)
1
0.1
80
60
40
20
0.01
0
0.1
1
10
Pulse Duration - tp (µs)
100
1000
0
25
50
75
100
Ambient Temperature TA (OC)
125
150
Typical Capacitance vs. Reverse Voltage
Typical Clamping Voltage vs. Peak Pulse Current
0.5
60
0.4
Capacitance - Cj (pF)
Clamping Voltage -VC (V)
TA=25OC
f = 1 MHz
40
20
O
0.3
0.2
0.1
TA=25 C
Waveform Parameters:
tr = 8us; td = 20us;
0
0
0.5
1.0
1.5
2.0
2.5
0
5
10
15
20
ESD Clamping
(8kV Contact per IEC 61000-4-2)
Insertion Loss S21
CH1 S21
200
LOG
6 dB / REF 0 dB
1: -0.03500 dB
800 MHz
Clamping Voltage (V)
O
TA = 25 C.
Waveform 1ns/60ns; 8kV peak.
Corrected for 40dB attenuation.
Measured with 50 40dB attenuator;
50 Scope Input Impedance.
150
25
Reverse Voltage - VR (V)
Peak Pulse Current - IPP (A)
5
0 dB
12
3
2: -0.02690 dB
900 MHz
4
3: -0.15840 dB
1.8 GHz
-6 dB
-12 dB
4: -0.59350 dB
2.5 GHz
100
-18 dB
-24 dB
50
-30 dB
-36 dB
0
-42 dB
0
20
40
60
80
100
-48 dB
Time (ns)
1
MHz
START . 030 MHz
© 2011 Semtech Corp.
3
10
MHz
100
MHz
3
1
GHz GHz
STOP 3000. 000000 MHz
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RClamp2431TQ
PROTECTION PRODUCTS
Typical Characteristics
Typical Junction Capacitance v Temperature
Typical Reverse Leakage Current v Temperature
1.2
5
VR = 24V
Leakage Current (nA)
VR = 0
Capacitance (pF)
0.9
0.6
0.3
4
3
2
1
0
0.0
-50
0
50
O
Temperature ( C)
100
-50
150
0
50
O
Temperature ( C)
100
150
Typical Breakdown Voltage v Temperature
Breakdown Voltage (VBR) (V)
36
IBR = 1mA
34
32
30
28
26
-50
0
© 2011 Semtech Corp.
50
Temperature (OC)
100
150
4
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RClamp2431TQ
PROTECTION PRODUCTS
Applications
Information
Applications
Information
Equivalent Circuit Diagram
Device Connection Options
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.
1
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.
© 2011 Semtech Corp.
2
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RClamp2431TQ
PROTECTION PRODUCTS
Outline Drawing - SLP1006P2T
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
.015 .016 .017
.000 .001 .002
.018 .020 .022
.035 .039 .043
.020 .024 .028
.026 BSC
.008 .010 .012
.002 .004 .006
2
.003
.004
0.37 0.40 0.43
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 - SLP1006P2T
Y
(C)
DIM
C
G
X
Y
Z
Z
G
DIMENSIONS
INCHES
MILLIMETERS
(.033)
(0.85)
.012
0.30
.024
0.60
.022
0.55
.055
1.40
X
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.
© 2011 Semtech Corp.
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RClamp2431TQ
PROTECTION PRODUCTS
Marking
Ordering Information
7T
Part Number
Working
Voltage
Qty per
Reel
Reel
Size
RClamp 2431TQ.TCT
24V
3,000
7 Inch
Note: Lead finish is lead-free NiPdAu.
RailClamp and RClamp are marks of Semtech Corporation.
Notes:
1) Marking will also include line matrix date code
2) Device is electrically symmetrical
Tape and Reel Specification
Cathode Bar Location
User Direction of feed
Device Orientation in Tape
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
© 2011 Semtech Corp.
7
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