Semtech Expands RClamp Platform

CAMARILLO, CA, Feb 24, 2020 – Semtech Corp., a leading supplier of high performance analog and mixed-signal semiconductors and advanced algorithms, announced the latest addition to its RClamp platform. The four-line, 5V RClamp0504FB offers robust electrostatic discharge (ESD) protection and superior surge immunity in an industry standard six lead SC-70 package. This transient voltage suppression (TVS) array offers extensive interface protection versatility with its differentiated performance and small form factor, enabling use in data ports for industrial, Internet of Things (IoT) and telecommunication applications.

Semtech RClamp (Graphic: Business Wire)

Exceeding industry standards for ESD immunity, the RClamp0504FB offers a 28A Ipp surge rating and is housed in a compact SC-70 package. This footprint presents hardware designers PCB space savings and the familiarity of an established multi-line package. The RClamp0504FB offers an extremely low typical capacitance of 1.1pF, making the device well suited for use in high speed differential interfaces.

“As silicon transceivers continue to scale to smaller geometries, the vulnerability of present day microelectronic devices to overvoltage and surge threats is among the highest it has been in the industry’s history,” said Timothy Puls, product marketing director for Semtech’s Protection Products Group. “The RClamp0504FB is an extremely flexible device that gives hardware engineers an outstanding, versatile solution for protecting a broad range of data interfaces from some of the harshest ESD and surge threats.”

Key Features of the RClamp0504FB

  • Transient protection for high-speed data lines to: IEC 61000-4-2 (ESD) ±30kV (contact), ±24kV (air); IEC 61000-4-4 (EFT) 40A (5/50ns); IEC 61000-4-5 (lightning) 28A (8/20μs)
  • 5V bi-directional working voltage protection
  • High surge capability: 28A (tp=8/20μs)
  • Protects 4 I/O lines
  • Low capacitance (1.1 pF typical)
  • SC-70 package
  • Pb-free and RoHS/WEEE compliant

Pricing and Availability

The RClamp0504FB (order code: RClamp0504FB.TCT) is available immediately in production quantities. Semtech offers comprehensive design assistance, including field- and factory-based support. Data sheets, volume pricing and delivery quotes, as well as evaluation kits and samples, are available by contacting

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.

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