EClamp2455K
EClamp2455K is ESD/EMI Protection manufactured by SEMTECH.
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ESD/EMI Protection for SIM Card
PRELIMINARY Features
Bidirectional EMI/RFI filter with integrated TVS for ESD protection ESD protection to IEC 61000-4-2 (ESD) Level 4,
±15k V (air), ±8k V (contact) TVS working voltage: 5V Termination Resistors: 100 Ohms & 47 Ohms Capacitance: 20p F (Typical at VR = 0V) Protection and filtering for four lines Solid-state technology
PROTECTION PRODUCTS
- EMIClamp TM Description
The EClamp TM2455K is bination EMI filter and line termination device with integrated TVS diodes for use on SIM Card interfaces on cellular phones and other portable 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 ±15k V (air discharge) and ±8k V (contact discharge) per IEC 610004-2, level 4. An additional TVS diode connection is included for protection of the voltage (Vcc) bus. The EClamp2455K is in a 8-pin, Ro HS/WEEE pliant, 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 Ni Pd Au. The small package makes it ideal for use in portable electronics such as cell phones and digital still cameras.
Mechanical Characteristics
SLP1713P8 8-pin package Ro HS/WEEE pliant Nominal Dimensions: 1.7 x 1.3 x 0.50 mm Lead Pitch: 0.4mm Lead finish: Ni Pd Au Marking: Marking Code Packaging: Tape and Reel per EIA 481
Applications
SIM Card Cell Phone PDAs and Smartphones
Pin Configuration
Package Configuration
1 2
RST Out CLK Out
RST In CLK In Data In
Gnd
Data Out NC
4 5
0.40...
