Vishay Intertechnology ESD Protection Diode Passes IEEE 10BASE-T1S Compliance Tests

Rhea-AI Summary

Vishay (NYSE:VSH) announced the VETH100A1DD1 ESD protection diode passed IEEE 10BASE-T1S compliance tests and meets all three OPEN Alliance EMC Test Specifications for ESD protection devices.

The DFN1006-packaged device supports 10BASE-T1S, 100BASE-T1, and 1000BASE-T1, and offers capacitance below 1 pF, suitable for automotive multidrop and point-to-point Ethernet architectures.

AI-generated analysis. Not financial advice.

Positive

• Passed IEEE 10BASE-T1S compliance testing
• Supports 10BASE-T1S, 100BASE-T1, 1000BASE-T1 standards
• Capacitance 1 pF, preserving 10BASE-T1S signal integrity
• Available in DFN1006 package for compact designs

Negative

• No financial figures or commercial launch timing disclosed
• Test reports available only upon request, not published publicly

News Market Reaction – VSH

+4.58%

3 alerts

+4.58% News Effect

+$202M Valuation Impact

$4.62B Market Cap

0.1x Rel. Volume

On the day this news was published, VSH gained 4.58%, reflecting a moderate positive market reaction. Our momentum scanner triggered 3 alerts that day, indicating moderate trading interest and price volatility. This price movement added approximately $202M to the company's valuation, bringing the market cap to $4.62B at that time.

Data tracked by StockTitan Argus on the day of publication.

Key Figures

Cable length: 25 meters Data rate: 10 Mbit/s Capacitance: Below 1 pF

3 metrics

Cable length 25 meters Maximum 10BASE-T1S twisted-pair cable length

Data rate 10 Mbit/s Nominal data rate for 10BASE-T1S standard

Capacitance Below 1 pF VETH100A1DD1 capacitance vs 10BASE-T1S test specification

Peers on Argus

VSH gained 4.97% with elevated volume. Several peers in semiconductors (e.g., DI...

1 Down

VSH gained 4.97% with elevated volume. Several peers in semiconductors (e.g., DIOD +2.27%, SYNA +2.29%, POWI +4.64%, SIMO +2.78%, SMTC +3.05%) also rose, while momentum scanner flagged only QRVO -8.30% on the downside.

Historical Context

5 past events · Latest: Apr 29 (Positive)

Pattern 5 events

Date	Event	Sentiment	Move	Catalyst
Apr 29	Product introduction	Positive	+4.0%	Launch of thin film metallized submount platform for high-speed optical modules.
Apr 22	Product launch	Positive	-1.3%	Introduction of 200 V FRED Pt ultrafast rectifiers in new DFN6546A package.
Apr 15	Product launch	Positive	+2.7%	New IHLP1212-EZ-1Z inductor offering high current and compact footprint.
Apr 14	Earnings date	Neutral	+2.7%	Announcement of timetable to report and discuss fiscal Q1 2026 results.
Apr 14	Customer award	Positive	+1.3%	Third consecutive Excellent Supply Chain Award from key automotive customer.

Pattern Detected

Recent product and corporate news often coincided with modest positive moves, with one product launch showing a negative reaction despite constructive content.

Recent Company History

Over the past month, Vishay issued multiple product introductions and corporate updates, including thin film submounts on Apr 29, ultrafast rectifiers on Apr 22, and a compact IHLP inductor on Apr 15. An earnings date announcement and a recurring automotive supply chain award also appeared in mid-April. Most of these news items saw positive 24-hour price reactions between roughly 1%–4%, suggesting incremental news has often been received constructively.

Regulatory & Risk Context

Short Interest: 9.94%

Short Interest

9.94% of shares outstanding

as of 2026-05-29 Days to cover: 1.7

Market Pulse Summary

This announcement confirms that Vishay’s VETH100A1DD1 diode meets IEEE 10BASE-T1S compliance and all...

Analysis

This announcement confirms that Vishay’s VETH100A1DD1 diode meets IEEE 10BASE-T1S compliance and all three OPEN Alliance EMC test specifications, extending its fit across 10BASE-T1S, 100BASE-T1, and 1000BASE-T1 architectures. It reinforces Vishay’s role in automotive Ethernet protection solutions as the stock trades near its 52-week high. In assessing impact, investors may watch how this device features in design wins, alongside upcoming first quarter results on May 13, 2026.

Key Terms

esd protection diode, ieee 10base-t1s, open alliance emc test specifications, 10base-t1s, +4 more

8 terms

esd protection diode technical

"VETH100A1DD1 ESD protection diode, offered in the DFN1006 package, has"

An ESD protection diode is a tiny electronic component that diverts sudden static shocks or electrical surges away from sensitive circuits, like a lightning rod or shock absorber for a chip. It matters to investors because these diodes improve product reliability, reduce returns and warranty costs, and can affect manufacturing yield and regulatory compliance—factors that influence a technology maker’s costs, reputation, and long-term revenue.

ieee 10base-t1s technical

"has successfully passed IEEE 10BASE-T1S compliance testing, confirming its"

IEEE 10Base-T1S is an industry standard for sending digital data at 10 megabits per second over a single twisted pair of wires, designed to link many short-range devices—sensors, controllers and modules—on the same line in industrial, automotive and Internet-of-Things setups. Like converting a wide highway into a cost‑effective narrow lane that supports many small deliveries, it reduces wiring, power and component cost and makes it easier to add connected devices, which can expand markets for chipmakers and equipment providers.

open alliance emc test specifications technical

"meets all three OPEN Alliance EMC Test Specifications for ESD Protection"

Open Alliance EMC test specifications are a set of agreed test methods and limits used to check how automotive-grade network hardware behaves around electromagnetic noise and whether it interferes with or is affected by other electronics. For investors, these specs matter because compliance is a basic quality and regulatory requirement: passing them reduces risk of recalls, speeds adoption by carmakers, and signals that products will reliably work alongside other vehicle systems, similar to a radio that won’t be drowned out by nearby noise.

10base-t1s technical

"10BASE-T1S is an automotive data bus designed to connect at least eight"

A networking standard that sends 10 megabits per second of data over a single twisted pair of wires, designed to connect many low‑speed sensors and devices on the same line rather than running a separate cable to each one. Think of it as a communal road for small data packets—cheaper, lower‑power, and easier to install than full Ethernet for every device—so investors watch it because it can lower deployment costs and expand markets for chips, industrial equipment, and connectivity services.

100base-t1 technical

"supporting 10BASE-T1S, 100BASE-T1, and 1000BASE-T1 applications."

An industry standard for sending Ethernet data at 100 megabits per second over a single small twisted-pair cable, commonly used in cars, industrial machines, and connected devices. Investors care because it enables faster, lighter and cheaper wiring for modern electronics—like widening a single-lane road to carry more traffic—so suppliers of chips, connectors and networking equipment can gain sales as vehicles and devices add high-speed data features.

1000base-t1 technical

"supporting 10BASE-T1S, 100BASE-T1, and 1000BASE-T1 applications."

1000BASE-T1 is a technical standard that defines how to send one gigabit-per-second Ethernet data over a single twisted-pair cable, commonly used in cars and industrial equipment to connect sensors, cameras and controllers. For investors, it matters because it enables faster, lighter and cheaper wiring for complex electronic systems—similar to replacing multiple slow roads with a single high-speed lane—affecting demand for suppliers of chips, connectors and networking components.

multidrop bus topology technical

"10BASE-T1S uses a multidrop bus topology in which multiple nodes share"

A multidrop bus topology is a wiring pattern where many devices share a single communication line, similar to several houses connected along one shared road. For investors, it matters because that design lowers material and manufacturing costs and simplifies connectivity, but can create a single point of congestion or failure that affects performance and product reliability—factors that influence production cost, customer satisfaction, and supplier risk.

baseband transmission technical

"operates at a nominal data rate of 10 Mbit/s using baseband transmission"

Baseband transmission is a way of sending raw digital or analog signals over a communication medium without shifting them to a higher frequency band. Think of it as speaking directly into a pipe rather than converting your voice into a radio channel first; it is commonly used on wired networks and short-range links where the full signal occupies the medium. Investors care because baseband designs affect product performance, network costs, and compatibility—factors that influence revenue, capital spending and competitive position in communications markets.

AI-generated analysis. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

VETH100A1DD1 Meets All Three OPEN Alliance EMC Test Specifications for ESD Protection Devices

MALVERN, Pa., May 06, 2026 (GLOBE NEWSWIRE) -- Vishay Intertechnology, Inc. today announced that its VETH100A1DD1 ESD protection diode, offered in the DFN1006 package, has successfully passed IEEE 10BASE-T1S compliance testing, confirming its suitability for use in automotive One-Pair Ethernet (OPEN) bus architectures.

The VETH100A1DD1 meets all three OPEN Alliance EMC Test Specifications for ESD Protection Devices, supporting 10BASE-T1S, 100BASE-T1, and 1000BASE-T1 applications. In addition to the newly completed IEEE 10BASE-T1S compliance tests, the device has also passed compliance testing for 100BASE-T1 and 1000BASE-T1, with test reports available upon request.

10BASE-T1S is an automotive data bus designed to connect at least eight nodes over a single twisted-pair cable with lengths of up to 25 meters. The standard operates at a nominal data rate of 10 Mbit/s using baseband transmission over one twisted pair, with the “S” designating short-range operation. Unlike higher-speed point-to-point automotive Ethernet links such as 100BASE-T1 and 1000BASE-T1, 10BASE-T1S uses a multidrop bus topology in which multiple nodes share the same physical medium.

Because a 10BASE-T1S network can include an ESD protection device at each node, very low capacitance is critical to maintaining signal integrity across the bus. The VETH100A1DD1 is specifically designed to meet this requirement, offering a capacitance below the 1 pF described in the 10BASE-T1S test specification, making it well suited for 10BASE-T1S applications while remaining compatible with higher-speed automotive Ethernet standards.

With its compliance across 10BASE-T1S, 100BASE-T1, and 1000BASE-T1, the VETH100A1DD1 provides designers with an ESD protection solution for a broad range of automotive Ethernet architectures, from multidrop bus systems to higher-speed point-to-point links.

Vishay manufactures one of the world’s largest portfolios of discrete semiconductors and passive electronic components that are essential to innovative designs in the automotive, industrial, computing, consumer, telecommunications, military, aerospace, and medical markets. Serving customers worldwide, Vishay is The DNA of tech.^® Vishay Intertechnology, Inc. is a Fortune 1000 Company listed on the NYSE (VSH). More on Vishay at www.Vishay.com.

The DNA of tech^® is a registered trademark of Vishay Intertechnology, Inc.

Vishay on Facebook: http://www.facebook.com/VishayIntertechnology
Vishay Twitter feed: http://twitter.com/vishayindust

Links to product datasheets:
http://www.vishay.com/ppg?86195 (VETH100A1DD1)

Link to product photo:
https://www.flickr.com/photos/vishay/albums/72177720333432999

For more information please contact:
Vishay Intertechnology
Peter Henrici, +1 408 567-8400
peter.henrici@vishay.com
 or
Redpines
Bob Decker, +1 415 409-0233
bob.decker@redpinesgroup.com

FAQ

What does Vishay's VETH100A1DD1 passing IEEE 10BASE-T1S mean for automotive Ethernet (VSH)?

It confirms the diode meets IEEE 10BASE-T1S EMC requirements and is suitable for automotive multidrop bus designs. According to the company, the device also supports 100BASE-T1 and 1000BASE-T1, enabling use across multidrop and point-to-point automotive Ethernet topologies.

What is the capacitance of the VETH100A1DD1 and why does it matter for 10BASE-T1S (VSH)?

The diode offers capacitance below 1 pF, meeting the 10BASE-T1S specification threshold. According to the company, this very low capacitance helps maintain signal integrity on shared single-pair, short-range multidrop Ethernet buses.

Which packaging does Vishay ship the VETH100A1DD1 in and is it suitable for compact automotive designs (VSH)?

The device is offered in a DFN1006 package, suitable for space-constrained layouts. According to the company, the small package supports integration into automotive node designs needing low-profile ESD protection.

Are test reports for VETH100A1DD1 compliance available to engineers evaluating VSH parts?

Yes, compliance test reports are available upon request from the company. According to the company, reports cover 10BASE-T1S, 100BASE-T1, and 1000BASE-T1 compliance testing for the device.

Can the VETH100A1DD1 be used across different automotive Ethernet speeds and topologies (VSH)?

Yes, the diode supports 10BASE-T1S multidrop and 100BASE-T1/1000BASE-T1 point-to-point links. According to the company, its compliance across standards provides designers flexibility for varied automotive Ethernet architectures.