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EClamp2455K
ESD/EMI Protection
for SIM Card
PROTECTION PRODUCTS - EMIClamp TM
Description
The EClamp TM 2455K is combination EMI filter and line
termination device with integrated TVS diodes for use on
SIM Card interfaces on cellular phones and other por-
table electronics. This state-of-the-art device utilizes
solid-state silicon-avalanche technology for superior
clamping performance and DC electrical characteristics.
The device consists of three circuits that include series
impedance matching resistors for proper termination of
the SIM card interface. Termination resistor value of
100 Ohms is included on the RST and Data lines and 47
Ohms on the CLK line. TVS diodes are also included on
each line for ESD protection in excess of ±15kV (air
discharge) and ±8kV (contact discharge) per IEC 61000-
4-2, level 4. An additional TVS diode connection is
included for protection of the voltage (Vcc) bus.
The EClamp2455K is in a 8-pin, RoHS/WEEE compli-
ant, SLP1713P8 package. It measures 1.7 x 1.3 x
0.50mm. The leads are spaced at a pitch of 0.4mm
and are finished with lead-free NiPdAu. The small
package makes it ideal for use in portable electronics
such as cell phones and digital still cameras.
Pin Configuration
PRELIMINARY
Features
Bidirectional EMI/RFI filter with integrated TVS
for ESD protection
ESD protection to IEC 61000-4-2 (ESD) Level 4,
±15kV (air), ±8kV (contact)
TVS working voltage: 5V
Termination Resistors: 100 Ohms & 47 Ohms
Capacitance: 20pF (Typical at VR = 0V)
Protection and filtering for four lines
Solid-state technology
Mechanical Characteristics
SLP1713P8 8-pin package
RoHS/WEEE Compliant
Nominal Dimensions: 1.7 x 1.3 x 0.50 mm
Lead Pitch: 0.4mm
Lead finish: NiPdAu
Marking: Marking Code
Packaging: Tape and Reel per EIA 481
Applications
SIM Card
Cell Phone
PDAs and Smartphones
Package Configuration
1.70
1 2
RST Out
CLK Out
Data Out
NC
1
4
Gnd
8
5
RST In
CLK In
Data In
Vcc
1.30
0.40 BSC
0.50
Pin Identification and Configuration
(Top Side View)
8 Pin SLP package (Bottom Side View)
Nominal Dimensions in mm
Revision 03/27/2007
1
www.semtech.com
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