Semtech Introduces New RClamp® Device for Safeguarding USB Type-C Interfaces

Semtech Introduces New RClamp® Device for Safeguarding USB Type-C Interfaces

Semtech’s new ultra-low capacitance TVS device offers industry leading ESD protection for high speed data lines

CAMARILLO, Calif., June 4, 2020Semtech Corporation (Nasdaq: SMTC), a leading supplier of high performance analog and mixed-signal semiconductors and advanced algorithms, today announced the latest addition to its RClamp® platform. The RClamp3371ZC exceeds industry immunity standards for electrostatic discharge (ESD) protection robustness while only presenting 250 femtofarads of maximum loading capacitance. Engineered as a low clamping, ultra-low capacitance transient voltage suppression (TVS) device, the RClamp3371ZC is an ideal solution for safeguarding high speed interfaces, such as USB Type-C, from common ESD threats.

As high-speed transceiver ICs implemented on ever-shrinking silicon geometries become increasingly sensitive to transient voltage spikes, the need for high performance protection circuitry is becoming even more critical. These ICs require ultra-low clamping voltage protection while also presenting a minimal loading capacitance. Based on Semtech’s FemtoClamp™ technology, the RClamp3371ZC utilizes an advanced ultra-low capacitance TVS silicon process for achieving the highest performance ESD protection for high speed data communication channels. RClamp3371ZC is housed in a very small 0201 package giving board designers key space savings and a high degree of layout flexibility.

“USB Type-C interfaces are rapidly becoming the data transfer standard for communications and handheld devices,” said Tee Lim, Product Marketing Director for Semtech’s Protection Products Group. “Semtech’s RClamp3371ZC gives the hardware design community a highly differentiated protection device optimized for safeguarding these important high speed USB data ports.”

Key Features of the RClamp3371ZC

  • Transient protection for high speed data lines to: IEC 61000-4-2 (ESD) ±17kV (air), ±10kV (contact); IEC 61000-4-4 (EFT) 40A (5/50ns); IEC 61000-4-5 (lightning) 9A (8/20μs)
  • 3.3V working voltage protection
  • Robust surge capability: 9A (tp=8/20μs)
  • Ultra-low Low capacitance (<0.25 pF max)
  • Ultra-small 0.62 x 0.32 x 0.25mm (0201) package
  • Pb-free and RoHS/WEEE compliant

Pricing and Availability

The RClamp3371ZC (order code: RClamp3371ZCTNT) is available immediately in production quantities. Semtech offers comprehensive design assistance, including field- and factory-based support. Datasheets, volume pricing and delivery quotes, as well as evaluation kits and samples are available by visiting here.

About Semtech’s Circuit Protection Products

Semtech provides reliable system-level electrostatic discharge (ESD) and electromagnetic interference (EMI) circuit protection solutions that meet the industry's toughest requirements. Semtech ESD protection diodes feature low clamping voltage, low capacitance and low leakage current to protect your system interconnects from external ESD threats. Semtech’s portfolio of circuit protection products include the RClamp®, EClamp®, µClamp®, and TClamp® families of products, among others. For more information, visit the Semtech Circuit Protection site.

About Semtech

Semtech Corporation is a leading supplier of analog and mixed-signal semiconductors for high-end consumer, computing, communications and industrial equipment. Products are designed to benefit the engineering community as well as the global community. The company is dedicated to reducing the impact it, and its products, have on the environment. Internal green programs seek to reduce waste through material and manufacturing control, use of green technology and designing for resource reduction. Publicly traded since 1967, Semtech is listed on the NASDAQ Global Select Market under the symbol SMTC. For more information, visit

Forward-Looking and Cautionary Statements

All statements contained herein that are not statements of historical fact, including statements that use the words “is becoming,” “designed to,” or other similar words or expressions, that describe Semtech Corporation’s or its management’s future plans, objectives or goals are “forward-looking statements” and are made pursuant to the Safe-Harbor provisions of the Private Securities Litigation Reform Act of 1995, as amended. Such forward-looking statements involve known and unknown risks, uncertainties and other factors that could cause the actual results of Semtech Corporation to be materially different from the historical results and/or from any future results or outcomes expressed or implied by such forward-looking statements. Such factors are further addressed in Semtech Corporation’s annual and quarterly reports, and in other documents or reports, filed with the Securities and Exchange Commission ( including, without limitation, information under the captions “Management's Discussion and Analysis of Financial Condition and Results of Operations” and “Risk Factors”. Semtech Corporation assumes no obligation to update any forward-looking statements in order to reflect events or circumstances that may arise after the date of this release, except as required by law.

Semtech, the Semtech logo and RClamp are registered trademarks or service marks, and FemtoClamp is a trademark or service mark, of Semtech Corporation or its affiliates.