Description

RClamp® TVS are designed to protect sensitive

electronics from damage or latch-up due to ESD. It

offers desirable characteristics for board level protection

including fast response time, low operating and

clamping voltage, and no device degradation.

RClamp1851PQ 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 0.18 Ohms, low

peak ESD clamping voltage, and high ESD withstand

voltage (+/-17kV contact per IEC 61000-4-2). Low typical

capacitance (0.37pF at VR

=0V) minimizes harmonic

distortion on the RF signal. This device is bi-directional

and has a working voltage of 18V for use on NFC

resonator circuits without signal clipping.

RClamp1851PQ is in a 2-pin DFN package measuring

1.0 x 0.6mm with a nominal height of 0.55mm. The

small package gives the designer the flexibility to

protect single lines in applications where arrays are not

practical. The combination of small size and high ESD

surge capability makes them ideal for use in portable

applications such as cellular phones, digital cameras,

and tablet PC’s. This device is qualified to AEC-Q100 and

AEC-Q101 for automotive use.

Features

• High ESD withstand voltage: +/-17kV (contact) and

+/-20kV (air) per IEC 61000-4-2

• Protects one high speed data line

• Qualified to AEC-Q100, Grade 1 and AEC-Q101

• Low ESD clamping voltage

• Working voltage: 18V

• Low capacitance: 0.37pF Typical

• Low leakage current

• Low dynamic resistance: 0.18 Ohms Typical

• 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

• Near Field Communication (NFC) lines

• RF signal lines

• FM/DAB/Telematics/GPS antenna

• Automotive and industrial applications