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

(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

“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

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

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,

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similar words or expressions, that describe Semtech Corporation’s or its
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Semtech Corporation to be materially different from the historical
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“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, RClamp, EClamp, µClamp, and TClamp are
registered trademarks or service marks, of Semtech Corporation and/or
its affiliates.


Ronda Grech
Semtech Corporation
(805) 250-1263

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