18V TVS device safeguards NFC & RF interfaces

Built on Semtech’s highly differentiated process technologies that achieve the industry’s lowest clamping voltages, the RClamp1851ZA features a low, typical dynamic resistance, which minimises harmonic distortion, as well as best in class, low ESD peak clamping voltage to prevent punch through failures during an ESD event. It is housed in an ultra-small, fully encapsulated package, which provides flexibility in circuit design and eases PCB layout. To extend battery life of its end-user applications, the device features low reverse leakage current - typically under 1nA.

The RClamp1851ZA offers a low insertion loss of less than 0.5dB below 5GHz operating frequency, low capacitance of 0.35pF at VR=0V and low typical dynamic resistance of 0.16Ω.

Rick Hansen, Product Marketing Director, Protection Products, Semtech, commented: “With the fast adoption of electronic payment systems on portable devices, such as smartphones and smart watches, protecting the NFC circuits on these devices ensures reliable operation and enhances user experience. The RClamp1851ZA expands Semtech’s RF protection product family and offers electronics engineers the high reliability and high performance in ESD protection that Semtech is known for.”

Supplied in a 0.6x0.3mm package with a nominal height of only 0.25mm, the RClamp1851ZA is available immediately in production quantities and is priced at $0.13 each in 15,000 unit quantities.