Semtech Introduces New AEC-Q100 Qualified Protection Array for Automotive CAN Bus Nodes

Semtech Introduces New AEC-Q100 Qualified Protection Array for Automotive CAN Bus Nodes

Expansion of automotive ESD protection platform provides superior protection for CAN buses

CAMARILLO, Calif., Feb. 5, 2019 Semtech Corporation (Nasdaq: SMTC), a leading supplier of high performance analog and mixed signal semiconductors and advanced algorithms, today introduced a new AEC-Q100 qualified protection array for automotive CAN bus nodes. The new low capacitance 24V (Vrwm) transient voltage protection µClamp® array is optimized to safeguard automotive CAN bus nodes from electrostatic discharge (ESD) and overvoltage transient threats.

“CAN continues to be an important and prolific bus used in today’s automotive system designs,” said Tamir Reshef, Product Marketing Director for Semtech’s Protection Products Group. “The new µClamp2492SQ, with its superior ESD robustness and low clamping voltage performance, provides automotive engineers a much needed solution to safeguard CAN nodes.”

The CAN networking bus has long served as the backbone of vehicle networking and is widely used in today’s vehicles. To adequately provide ESD immunity, CAN nodes require ESD protection devices with 24V working voltage and a low ESD clamping voltage to safeguard bus nodes from the harsh electrical environment in the car. The two-line, 24V µClamp2492SQ offers a low ESD clamping voltage while minimizing loading capacitance, making it suitable for higher speed versions of CAN, including CAN 2.0 and CAN FD.

The µClamp2492SQ is housed in an industry standard SOT-23 3L package, and provides two lines of robust transient protection. The device far exceeds the IEC61000-4-2 ESD immunity standards, offering an industry-leading protection level of ±30kV air and ±30kV contact, and is qualified to Grade 1 of the AEC-Q100 Automotive Standard.

Key Features of µClamp2492SQ

  • Transient protection for high-speed data lines to: IEC 61000-4-2 (ESD) ±30kV (air), ±30kV (contact); IEC 61000-4-4 (EFT) 4kV (5/50ns); IEC 61000-4-5 (Lightning) 5A (8/20μs)
  • 24V working voltage protection
  • Protects two I/O lines
  • Low capacitance (<18pF line-to-line)
  • Industry standard SOT-23 package
  • AEC-Q100 qualified to Grade 1
  • Pb-Free and RoHS/WEEE compliant


The µClamp2492SQ (order code: µClamp2492SQTCT) 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 visiting the product page.

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

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