Description

RailClamp® TVS diodes are ultra low capacitance devices

designed to protect sensitive electronics from damage

or latch-up due to ESD, EFT, and EOS. They are designed

for use on high speed ports in applications such as

cell phones, notebook computers, and other portable

electronics. These devices offer desirable characteristics

for board level protection including fast response time,

low operating and clamping voltage, and no device

degradation.

RClamp®2451P is specifically designed for protection

of Near Field Communications (NFC) interfaces. It

features extremely good ESD protection characteristics

including a low typical dynamic resistance of 0.19Ω, low

peak ESD clamping voltage, and high ESD withstand

voltage (+/-10kV contact per IEC 61000-4-2). Low typical

capacitance (0.38pF at VR=0V) means that RClamp2451P

will not create harmonic distortion in the RF signal. This

device is bidirectional and has a working voltage of 24V

for use on NFC resonator circuits without signal clipping.

RClamp2451P is in a DFN 1.0 x 0.6 x 0.55mm 2-Lead

package. The combination of working voltage, low

dynamic resistance, and low capacitance makes this

device ideal for use on NFC antenna circuits, RF signal

lines, and FM antennas in portable devices.

Features

• High ESD withstand voltage: +/-10kV (contact) and

+/-18kV (air) per IEC 61000-4-2

• Able to withstand over 1000 ESD strikes per IEC

61000-4-2 Level 4

• Protects one high speed data line

• Low ESD clamping voltage

• Working voltage: +/- 24V

• Low capacitance: 0.38pF Typical

• Low leakage current

• Low dynamic resistance: 0.19Ω

• Solid-state silicon-avalanche technology

Mechanical Characteristics

• Package: DFN 1.0 x 0.6 x 0.55mm 2-Lead

• Pb-Free, Halogen Free, RoHS/WEEE compliant

• Lead Finish: Lead Free

• Marking: Marking code

• Packaging: Tape and Reel

Applications

• LoRa transceivers

• Near Field Communication (NFC) lines

• RF signal lines

• FM Antenna