New Vishay Intertechnology Space-Grade Common Mode Choke Provides EMI Filtering for GaN and SiC Switching Applications

Rhea-AI Summary

Vishay (NYSE: VSH) introduced the SGCM05339, a space-grade surface-mount common mode choke for GaN and SiC switching, power converters, and solar panel inverters. The device features a nanocrystalline core, overmolded ruggedized construction, and outgassing compliance per ASTM-E595.

The SGCM05339 supports heat-rating currents up to 14.43 A, continuous operation from -55 °C to +130 °C, dielectric withstand of 1000 VRMS, insulation resistance ≥ 10 GΩ, and selectable screening to MIL and EEE standards. Samples and production quantities are available with lead times of 8 to 12 weeks.

Positive

• Heat-rating current up to 14.43 A
• Continuous operating range -55 °C to +130 °C
• Dielectric withstand voltage of 1000 VRMS

Negative

• Typical lead times of 8–12 weeks
• DC resistance up to 0.1318 Ω per winding

News Market Reaction – VSH

-1.07%

3 alerts

-1.07% News Effect

+12.5% Peak Tracked

-10.2% Trough Tracked

-$26M Valuation Impact

$2.40B Market Cap

0.0x Rel. Volume

On the day this news was published, VSH declined 1.07%, reflecting a mild negative market reaction. Argus tracked a peak move of +12.5% during that session. Argus tracked a trough of -10.2% from its starting point during tracking. Our momentum scanner triggered 3 alerts that day, indicating moderate trading interest and price volatility. This price movement removed approximately $26M from the company's valuation, bringing the market cap to $2.40B at that time.

Data tracked by StockTitan Argus on the day of publication.

Key Figures

Heat rating current: up to 14.43 A Operating temperature range: -55 °C to +130 °C Dielectric withstand voltage: 1000 VRMS +5 more

8 metrics

Heat rating current up to 14.43 A Space-grade common mode choke SGCM05339

Operating temperature range -55 °C to +130 °C Continuous operating temperature for SGCM05339

Dielectric withstand voltage 1000 VRMS SGCM05339 insulation specification

Insulation resistance 10 GΩ at 500 VDC Minimum insulation resistance for SGCM05339

Lead time 8 to 12 weeks Samples and production quantities availability

Inductance per winding 320 µH to 10 400 µH Device specification table for SGCM05339

Common mode impedance 540 Ω to 3600 Ω Typical common mode impedance range

DC resistance per winding 0.0029 Ω to 0.1318 Ω Maximum DC resistance per winding

Market Reality Check

Price: $16.65 Vol: Volume 959,422 is 0.51x t...

low vol

$16.65 Last Close

Volume Volume 959,422 is 0.51x the 20-day average, indicating lighter-than-normal trading before this news. low

Technical Shares at $17.68 are trading above the 200-day MA of $16.20, but remain 19.64% below the 52-week high of $22.00 and 70.82% above the 52-week low of $10.35.

Peers on Argus

VSH was up 1.73% pre-news. Peers were mixed: DIOD +0.38%, POWI +0.80%, SYNA -1.7...

VSH was up 1.73% pre-news. Peers were mixed: DIOD +0.38%, POWI +0.80%, SYNA -1.78%, SIMO roughly flat at -0.02%, SMTC down -4.85%. With no peers in the momentum scanner and mixed directions, this points to stock-specific rather than sector-wide factors.

Historical Context

5 past events · Latest: Mar 04 (Positive)

Pattern 5 events

Date	Event	Sentiment	Move	Catalyst
Mar 04	Product launch (LED)	Positive	-0.9%	Launch of compact tricolor RGB LED with high intensity and wide color range.
Feb 25	Product launch (optocouplers)	Positive	+2.5%	Industrial-focused phototransistor optocouplers with low forward current and high isolation.
Feb 18	Product launch (resistors)	Positive	+3.8%	Ultra-compact thick film chip resistors reducing PCB area while maintaining reliability.
Feb 12	Dividend declaration	Positive	-2.6%	Quarterly cash dividend of $0.10 per share announced for common stockholders.
Feb 11	Product launch (resistors)	Positive	+4.3%	Sulfur-resistant thick film chip resistors with long-term stability for automotive and industrial use.

Pattern Detected

Recent product announcements have often seen positive price reactions, but there are occasional divergences where favorable news coincided with short-term declines.

Recent Company History

Over the last few months, Vishay has repeatedly expanded its component portfolio with new LEDs, optocouplers, and thick film resistors, often targeting automotive and industrial markets. Several of these launches on Feb 11, Feb 18, and Feb 25 2026 coincided with gains, while the RGB LED news on Mar 4 2026 saw a modest decline. A $0.10 quarterly dividend declared on Feb 12 2026 also preceded a short-term pullback. Today’s space-grade common mode choke fits this pattern of incremental product-line expansion.

Market Pulse Summary

This announcement adds a space-grade common mode choke to Vishay’s portfolio, aimed at GaN and SiC p...

Analysis

This announcement adds a space-grade common mode choke to Vishay’s portfolio, aimed at GaN and SiC power designs that demand EMI control and reliability. With currents up to 14.43 A, operation from -55 °C to +130 °C, and compliance with standards like ASTM-E595 and MIL-PRF-27, it targets aerospace and defense markets. In context of other recent product launches and a steady dividend, investors may watch for evidence of design wins, adoption in power systems, and how it complements Vishay’s broader discrete and passive components strategy.

Key Terms

common mode choke, emi, sic, dc/dc converters, +2 more

6 terms

common mode choke technical

"introduced a new space-grade, surface-mount common mode choke designed to provide"

A common mode choke is a small magnetic component made of paired coils that blocks or reduces unwanted electrical noise on power or signal lines while letting the desired current pass. Think of it as a traffic controller that keeps disruptive interference from wandering into sensitive parts of an electronic device. For investors, it matters because its presence affects product reliability, compliance with regulatory limits on electromagnetic interference, manufacturing cost and supply-chain risk for companies that build electronic equipment.

emi technical

"common mode choke designed to provide EMI filtering and noise suppression in"

An EMI is a UK tax-advantaged employee share option plan that lets a company grant executives and staff the right to buy shares at a preset price after a vesting period. It matters to investors because it aligns employees’ incentives with company performance—like giving key workers a stake in the business—while potentially diluting existing shareholders and changing future earnings per share when options are exercised.

sic technical

"ideal for GaN and SiC switching applications, where sharp edges develop in"

Sic is a short notation placed immediately after a quoted word or passage to show the text is reproduced exactly as it appeared in the original source, even if it contains a typo, odd phrasing, or factual error. For investors, it signals that any mistake or unusual wording came from the original speaker or document, not from the publisher—like an editor saying “this is how it was said,” which helps with accuracy, responsibility, and legal clarity.

dc/dc converters technical

"used in low profile, high current power supplies; DC/DC converters in distributed"

A dc/dc converter is an electronic device that changes one direct-current voltage level to another—raising or lowering the voltage so electronic components and batteries get the right power. For investors, its efficiency, size and reliability matter because better converters improve product battery life, reduce heat and material costs, and can make devices more competitive, affecting manufacturing costs, margins and market adoption.

astm-e595 regulatory

"Outgassing compliant per ASTM-E595, the device released today is available"

ASTM E595 is an industry standard test that measures how much volatile material a solid product releases when heated in a vacuum, commonly used for parts destined for spacecraft, optics, or other sensitive equipment. Investors should care because passing this test demonstrates that materials won’t emit contaminants that could foul delicate systems or violate contract and regulatory requirements, reducing risk of costly fixes, delays, or rejected shipments—think of it like checking whether a new paint gives off fumes that would spoil a sealed, high-precision room.

mil-prf-27 regulatory

"including MIL-PRF-27, Grade 5, Product Level T, Temperature Class S; MIL-STD-981"

A U.S. military performance specification for certain lubricating greases used on aircraft and military equipment, defining required properties, tests and quality levels. For investors, MIL-PRF-27 matters because products or suppliers certified to this spec are eligible for defense contracts and can win or retain government business; think of it as an official recipe and quality checklist buyers use when choosing parts and suppliers.

AI-generated analysis. Not financial advice.

Surface-Mount Device Features a Robust Nanocrystalline Core and Overmolded, Ruggedized Construction for Reliable Performance in Harsh Environments

MALVERN, Pa., March 18, 2026 (GLOBE NEWSWIRE) -- Vishay Intertechnology, Inc. (NYSE: VSH) today introduced a new space-grade, surface-mount common mode choke designed to provide EMI filtering and noise suppression in demanding space, aerospace, and defense applications.

The Vishay Custom Magnetics SGCM05339 is ideal for GaN and SiC switching applications, where sharp edges develop in waveforms, causing radiated emissions. The common mode choke will also be used in low profile, high current power supplies; DC/DC converters in distributed power systems; and power converters for solar panels.

To withstand the harsh environments of these applications, the self-shielded device features a compact, robust nanocrystalline core and an overmolded ruggedized construction. The SGCM05339 offers high impedance at extended frequencies, supports high heat rating current capabilities of up to 14.43 A, and provides a continuous operating temperature range from -55 °C to +130 °C.

Outgassing compliant per ASTM-E595, the device released today is available with a wide range of screening options, including MIL-PRF-27, Grade 5, Product Level T, Temperature Class S; MIL-STD-981 Family-4, Class S; and EEE-INST-002. The SGCM05339 offers a dielectric withstand voltage of 1000 V_RMS, insulation resistance of 10 GΩ (minimum) at 500 V_DC, and can be customized by turn count, wire gauge, and more to meet specific application requirements.

Device Specification Table:

Part number	SGCM05339
Inductance per winding	320 µH to 10 400 µH
Common mode impedance (typ.)	540 Ω to 3600 Ω
DC resistance per winding (max.)	0.0029 Ω to 0.1318 Ω
Heat rating current (typ.)(¹)	2.02 A to 14.43 A
Peak impedance frequency	2.06 Hz to 31.74 Hz
Leakage (max.)	0.35 µH to 7.75 µH

⁽¹⁾ DC current (A) through the windings in series that will cause an approximate ΔT of 30 °C

Samples and production quantities of the new space-grade common mode choke are available now, with lead times of 8 to 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?34682 (SGCM05339)

Link to product photo:
https://www.flickr.com/photos/vishay/albums/72177720332489717/

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 is the Vishay SGCM05339 common mode choke (VSH) and its primary use?

The SGCM05339 is a space-grade common mode choke for EMI filtering in GaN and SiC switching applications. According to the company, it targets space, aerospace, defense, and high-current power converters where sharp switching edges cause radiated emissions.

What current and temperature specifications does the SGCM05339 (VSH) support?

The device supports heat-rating currents up to 14.43 A and continuous operation from −55 °C to +130 °C. According to the company, these ratings suit harsh-environment power supplies and converters used in aerospace and defense.

Which screening standards and compliances does the SGCM05339 (VSH) offer?

The SGCM05339 is available with MIL-PRF-27 Grade 5 Product Level T, MIL-STD-981 Family-4 Class S, and EEE-INST-002 screening options. According to the company, it is outgassing compliant per ASTM-E595 for space applications.

What electrical performance ranges are specified for the SGCM05339 (VSH)?

Inductance ranges from 320 µH to 10,400 µH with common-mode impedance typically 540 Ω to 3,600 Ω. According to the company, DC resistance per winding ranges from 0.0029 Ω to 0.1318 Ω depending on configuration.

When can customers obtain samples or production quantities of the SGCM05339 (VSH)?

Samples and production quantities are available now with lead times of 8 to 12 weeks. According to the company, customization by turn count and wire gauge is offered to meet specific application requirements.