Vishay Intertechnology Commercial and Automotive Grade Low Profile Common Mode Chokes Offer High Shock and Vibration Resistance

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Rhea-AI Summary

Vishay Intertechnology (NYSE: VSH) introduced two low profile Vishay Dale common mode chokes, the commercial ICMS2321-10 and Automotive Grade ICMS2321-1A, for high current automotive, energy, and industrial applications. The devices support heat rating currents up to 30 A, withstand 1500 VDC between coils, and operate at temperatures up to +150 °C.

Available in surface-mount and through-hole versions, they feature self-shielded, rugged construction for improved shock and vibration resistance, customizable inductance and current ratings, and are suited for DC/DC converters, high voltage inverters, EMI and high current filters. The ICMS2321-1A is AEC-Q200 qualified, and both series are RoHS-compliant, halogen-free, and offered with 12-week lead times.

Market Context

VSH's active S-3ASR shelf provided financing context for this product introduction. Recent product-n...

Analysis

VSH's active S-3ASR shelf provided financing context for this product introduction. Recent product-news outcomes were mixed, while the release quantified specifications but not demand conversion; remaining shelf capacity was not provided.

Key Figures

Heat Rating Current: up to 30 A Dielectric Withstand: 1500 VDC Operating Temperature: up to +150 °C +5 more

8 metrics

Heat Rating Current up to 30 A ICMS2321-10 and ICMS2321-1A

Dielectric Withstand 1500 VDC between coils

Operating Temperature up to +150 °C high-temperature operation

Inductance 70 µH to 480 µH device specification range

DCR Typical 1.2 mΩ to 13.4 mΩ device specification range

Common Mode Impedance 540 Ω to 3790 Ω at 1 MHz; 345 Ω to 1920 Ω at 10 MHz; 220 Ω to 410 Ω at 100 MHz device specification table

Heat Rating Current Ranges 7 A to 20 A typical; 10 A to 30 A typical device specification table

Lead Time 12 weeks samples and production quantities

Historical Context

5 past events · Latest: Aug 27 (Positive)

Pattern 5 events

Date	Event	Sentiment	24h Move	Catalyst
Aug 27	Transformer portfolio expansion	Positive	+3.5%	New customizable flyback transformers expanded Vishay's power component portfolio.
Aug 26	AI infrastructure showcase	Neutral	-2.1%	PCIM Asia demonstrations highlighted Vishay solutions for AI infrastructure and physical AI.
Aug 25	Automotive choke introduction	Positive	+3.0%	Four automotive-grade chokes targeted efficiency gains and reduced PCB space.
Aug 20	Power resistor introduction	Positive	-0.4%	RPWA 650 resistors offered higher power density and customizable configurations.
Aug 18	Proximity sensor introduction	Positive	-5.8%	VCNL36829UM delivered compact proximity sensing with low idle current and high resolution.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Pattern Detected

Recent product announcements showed mixed outcomes, with both positive and negative stock responses.

Key Terms

common mode chokes, aec-q200, dielectric withstand voltage, rohs-compliant

4 terms

common mode chokes technical

"introduced two new low profile common mode chokes for high current automotive"

Common mode chokes are passive electrical components that filter out unwanted noise or interference that appears equally on two or more conductors while allowing the intended signal or power to pass. They matter to investors because they are key parts in many electronic products and power systems; availability, cost, or design changes can affect manufacturing, product performance, regulatory compliance, and supply-chain risk for companies that make or use electronics.

aec-q200 technical

"The AEC-Q200 qualified ICMS2321-1A is well suited for use"

AEC‑Q200 is an industry standard that defines stress tests and reliability requirements for passive electronic components (such as resistors, capacitors and inductors) used in vehicles. For investors, an AEC‑Q200 qualification signals that parts are designed and tested to survive harsh automotive conditions—like temperature swings, vibration and humidity—making products more likely to win automotive contracts and reduce warranty or field‑failure risk.

dielectric withstand voltage technical

"withstand voltage between coils"

Dielectric withstand voltage is the high voltage applied between conductive parts and insulating parts of an electrical device to confirm the insulation won’t break down or leak current under stress. Think of it like briefly turning up water pressure to check pipes for leaks: it tests safety and durability of insulation. Investors care because passing or failing this test affects product safety certifications, regulatory approval, reliability, and potential liability or recall risks.

rohs-compliant regulatory

"The common mode chokes are RoHS-compliant, halogen-free"

RoHS-compliant means a product meets rules that limit or ban certain hazardous chemicals in electrical and electronic equipment, ensuring the item does not contain those restricted substances above set limits. For investors this matters because compliance affects a company's ability to sell in regulated markets, avoid fines and recalls, and manage production costs and supply-chain risks—similar to a food product following a recipe that omits banned ingredients to stay sellable and safe.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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09/01/2026 - 11:00 AM

Available With SMD or Through-Hole Mounting Options, Customizable Devices Offer Heat Rating Current to 30 A and High Operating Temperatures Up to +150 °C

MALVERN, Pa., Sept. 01, 2026 (GLOBE NEWSWIRE) -- Vishay Intertechnology, Inc. (NYSE: VSH) today introduced two new low profile common mode chokes for high current automotive, energy, and industrial applications. Available in both surface-mount and through-hole packages, the Vishay Dale commercial ICMS2321-10 and Automotive Grade ICMS2321-1A combine a heat rating current to 30 A with a 1500 V_DC dielectric withstand voltage between coils.

With their low profile, the devices released today offer a reduced size and volume, making them more resistant to shock and vibration, while their enhanced core design increases performance and saturation current at high temperatures up to +150 °C. Offering a self-shielded, rugged construction, the common mode chokes are ideal for DC/DC converters, high voltage inverters, EMI filters, and high current filters for noise suppression in motor control and other circuitry. The AEC-Q200 qualified ICMS2321-1A is well suited for use in automotive on-board chargers.

In addition to their surface-mount and through-hole mounting options, the ICMS2321-10 and ICMS2321-1A offer customizable inductance, impedance, DCR, and current ratings. Devices with surface-mount terminations are available in tape and reel packaging and are compatible with automated pick and place assembly for increased flexibility in board layouts. The common mode chokes are RoHS-compliant, halogen-free, and Vishay Green.

Device Specification Table:

Part number		ICMS2321-10	ICMS2321-1A
Inductance		70 µH to 480 µH
DCR typ.		1.2 mΩ to 13.4 mΩ
DCR max.		1.3 mΩ to 15.0 mΩ
Common mode impedance	@ 1 MHz	540 Ω to 3790 Ω
	@ 10 MHz	345 Ω to 1920 Ω
	@ 100 MHz	220 Ω to 410 Ω
Heat rating current typ.⁽¹⁾		7 A to 20 A
Heat rating current typ.⁽²⁾		10 A to 30 A
Leakage max.		1.7 µH to 11.5 µH
AEC-Q200		No	Yes

⁽¹⁾ DC current (A) that will cause an approximate ΔT of 40 °C
⁽²⁾ DC current (A) that will cause an approximate ΔT of 100 °C

Samples and production quantities of the ICMS2321-10 and ICMS2321-1A are available now, with lead times of 12 weeks.

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?34675 (ICMS2321-10)
http://www.vishay.com/ppg?34702 (ICMS2321-1A)

Link to product photo:
https://www.flickr.com/photos/vishay/albums/72177720335226843

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 products did Vishay (VSH) launch on September 1, 2026?

Vishay launched two low profile Vishay Dale common mode chokes, ICMS2321-10 and ICMS2321-1A, for high current applications. According to Vishay, these devices target automotive, energy, and industrial uses, featuring high operating temperatures, robust insulation, and improved resistance to shock and vibration.

What are the key electrical ratings of Vishay’s ICMS2321 common mode chokes (VSH)?

The ICMS2321-10 and ICMS2321-1A offer inductance from 70 µH to 480 µH and typical heat rating currents up to 30 A. According to Vishay, they provide 1500 VDC dielectric withstand voltage between coils, low DCR down to 1.2 mΩ, and common mode impedance up to 3790 Ω.

Is Vishay’s ICMS2321-1A common mode choke qualified for automotive use (VSH)?

Yes, the ICMS2321-1A is AEC-Q200 qualified for automotive applications. According to Vishay, this Automotive Grade device is well suited for use in on-board chargers, motor control noise suppression, DC/DC converters, and high voltage inverters requiring high reliability at elevated temperatures.

What mounting and packaging options are available for Vishay ICMS2321-10 and ICMS2321-1A (VSH)?

The ICMS2321-10 and ICMS2321-1A are available in both surface-mount and through-hole configurations. According to Vishay, surface-mount versions come in tape-and-reel packaging compatible with automated pick-and-place assembly, offering design flexibility for compact, vibration-resistant board layouts.

When will Vishay’s ICMS2321 common mode chokes be available to customers (VSH)?

Samples and production quantities of the ICMS2321-10 and ICMS2321-1A are available now. According to Vishay, current lead times are 12 weeks, enabling designers in automotive, energy, and industrial markets to begin qualification and integration into DC/DC converters, inverters, and EMI filtering designs.