Vishay Intertechnology Automotive Grade Phototransistor Optocoupler Delivers High Isolation Voltage Ratings for 800 V EV Batteries

Rhea-AI Summary

Vishay (NYSE: VSH) introduced the Automotive Grade VOLA617A phototransistor optocoupler, targeting 800 V EV batteries and industrial automation. The device offers 5000 VRMS isolation voltage, VIORM of 1414 Vpeak, and VIOTM of 8000 Vpeak in a 4‑pin LSOP low profile package.

It supports DC isolation up to 1000 V, features ≥ 8 mm creepage and clearance, operates from -40 °C to +125 °C, meets dual AEC‑Q102 standards, and is RoHS-compliant and halogen-free. Samples and production quantities are available with eight‑week lead times.

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

News Market Reaction – VSH

+7.77%

56 alerts

+7.77% News Effect

+5.6% Peak Tracked

-8.0% Trough Tracked

+$614M Valuation Impact

$8.52B Market Cap

0.4x Rel. Volume

On the day this news was published, VSH gained 7.77%, reflecting a notable positive market reaction. Argus tracked a peak move of +5.6% during that session. Argus tracked a trough of -8.0% from its starting point during tracking. Our momentum scanner triggered 56 alerts that day, indicating high trading interest and price volatility. This price movement added approximately $614M to the company's valuation, bringing the market cap to $8.52B at that time.

Data tracked by StockTitan Argus on the day of publication.

What This Means

The stock moved +7.8% in the session following this news. A strong positive reaction aligns with Vis...

Analysis

The stock moved +7.8% in the session following this news. A strong positive reaction aligns with Vishay’s push into high-voltage EV components, as this Automotive Grade optocoupler targets 800 V architectures and grid‑connected chargers. Ongoing capacity investments and any future capital needs could temper enthusiasm.

Key Figures

Isolation voltage: 5000 VRMS VIORM: 1414 Vpeak VIOTM: 8000 Vpeak +5 more

8 metrics

Isolation voltage 5000 VRMS VOLA617A optocoupler specification

VIORM 1414 Vpeak Reinforced isolation working voltage rating

VIOTM 8000 Vpeak Transient overvoltage isolation rating

DC isolation capability 1000 V Maximum DC voltage the device can isolate

Creepage/clearance ≥ 8 mm Package distances for isolation safety

Collector-emitter voltage 80 V Phototransistor collector-emitter rating

Operating temperature range -40 °C to +125 °C Ambient operating conditions

Lead time 8 weeks Samples and production quantities availability

Historical Context

5 past events · Latest: Jun 23 ()

5 events

Date	Event	Sentiment	24h Move	Catalyst
Jun 23	Product launch		-8.3%	Introduced Automotive Grade ambient light sensors for automotive and industrial applications.
Jun 18	Product launch		+7.1%	Released 1.5 kV IHDV high voltage power inductors for automotive and energy systems.
Jun 16	Product launch		-5.2%	Launched Gen 7 1200 V FRED Pt hyperfast rectifiers for industrial and automotive uses.
Jun 10	Product extension		-6.7%	Expanded ILHB Automotive Grade ferrite bead series for broader EMC noise reduction.
Jun 03	Product launch		+2.4%	Introduced 200 A power module for 48 V traction inverters in light and mild-hybrid EVs.

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

Key Terms

phototransistor optocoupler, galvanic isolation, common mode transient immunity

3 terms

phototransistor optocoupler technical

"introduced a new Automotive Grade phototransistor optocoupler designed to deliver signal"

A phototransistor optocoupler is an electronic component that transfers a signal between two circuits using light instead of a direct electrical connection, acting like a light-controlled switch behind a glass wall to keep the circuits electrically isolated. For investors, it matters because it enables safer, quieter and more reliable designs in products that need isolation from high voltages or electrical noise, influencing demand in power, industrial and medical equipment supply chains.

galvanic isolation technical

"designed to deliver signal transmission with high galvanic isolation for electric vehicles"

Galvanic isolation is a design approach that keeps two electrical circuits physically separate so direct current cannot flow between them while still allowing information or power to pass via non-contact methods. Think of it like a glass window that lets light and sound through but prevents a shock if you touch one side. For investors it matters because it improves safety, reduces risk of device failures or regulatory problems, and can affect product costs and market acceptance.

common mode transient immunity technical

"while providing low coupling capacitance of 0.5 pF and high common mode transient immunity"

The ability of an electronic device or system to withstand brief, sudden voltage or electrical disturbances that appear equally on multiple conductors relative to ground. Think of it like a car’s suspension absorbing a pothole that hits both wheels at once; strong immunity means fewer malfunctions, lower recall and repair costs, and smoother regulatory approval—factors that directly affect a product’s reliability, marketability, and a company’s financial risk.

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

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Device Offers Isolation Voltage of 5000 V_RMS, V_IORM of 1414 V_peak, and V_IOTM of 8000 V_peak in 4-pin LSOP Low Profile Package

MALVERN, Pa., June 25, 2026 (GLOBE NEWSWIRE) -- Vishay Intertechnology, Inc. (NYSE: VSH) today introduced a new Automotive Grade phototransistor optocoupler designed to deliver signal transmission with high galvanic isolation for electric vehicles (EV) — including emerging 800 V battery architectures — and industrial automation systems. The Vishay Semiconductors VOLA617A combines an isolation voltage of 5000 V_RMS with a V_IORM of 1414 V_peak and V_IOTM of 8000 V_peak in a 4-pin LSOP low profile package.

The device released today is ideal for grid-connected on-board chargers (OBC), DC/DC converters, battery management systems (BMS), isolated wake-up signals, and any system control with galvanic and noise isolation. While most automotive optocouplers can’t be used for battery voltages exceeding 500 V — limiting them to traditional 400 V EV platforms — the ability of the VOLA617A to isolate DC voltages up to 1000 V enables its use in next-generation high voltage EV architectures.

The VOLA617A consists of an infrared emitting diode, optically coupled to a silicon planar phototransistor detector in a low profile package with creepage and clearance distances of ≥ 8 mm. The device is available in four current transfer ratio (CTR) ranges and features a high 80 V collector-emitter voltage rating, allowing for more design flexibility.

The optocoupler operates over a wide -40 °C to +125 °C operating temperature — with a junction temperature capability up to +145 °C — while providing low coupling capacitance of 0.5 pF and high common mode transient immunity. Exceeding rigorous requirements for Automotive Grade performance and reliability, the VOLA617A’s robust package provides an extra safety margin by meeting dual AEC-Q102 qualification standards. The device is RoHS-compliant, halogen-free, and Vishay Green.

Samples and production quantities of the VOLA617A are available now, with lead times of eight 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?80342  (VOLA617A)

Link to product photo:
https://www.flickr.com/photos/vishay/albums/72177720334333031

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 product did Vishay (VSH) launch on June 25, 2026 for 800 V EV batteries?

Vishay launched the VOLA617A Automotive Grade phototransistor optocoupler designed for high-isolation signal transmission in 800 V EV battery systems. According to Vishay, it targets on-board chargers, DC/DC converters, battery management systems, and industrial automation applications requiring robust galvanic and noise isolation.

What are the key isolation ratings of Vishay’s VOLA617A optocoupler (VSH)?

The VOLA617A offers 5000 VRMS isolation voltage, VIORM of 1414 Vpeak, and VIOTM of 8000 Vpeak. According to Vishay, these ratings in a 4‑pin LSOP package support isolation of DC voltages up to 1000 V for next-generation high voltage EV architectures.

How does the Vishay VOLA617A optocoupler benefit next-generation EV architectures for VSH investors?

The VOLA617A can isolate DC voltages up to 1000 V, addressing emerging 800 V EV platforms. According to Vishay, most automotive optocouplers are limited to 500 V batteries, while this device targets grid-connected OBCs, DC/DC converters, BMS, and isolated wake-up signals.

What operating temperature range and electrical ratings does Vishay’s VOLA617A (VSH) provide?

The VOLA617A operates from -40 °C to +125 °C, with junction temperatures up to +145 °C. According to Vishay, it includes an 80 V collector-emitter rating, low 0.5 pF coupling capacitance, and high common mode transient immunity for demanding automotive and industrial environments.

Is Vishay’s VOLA617A optocoupler Automotive Grade qualified and environmentally compliant?

Yes, the VOLA617A meets dual AEC‑Q102 Automotive Grade qualification standards and is RoHS-compliant. According to Vishay, the device is halogen-free, labeled Vishay Green, and uses a robust package providing additional safety margin for high-voltage automotive and industrial designs.

When will Vishay’s VOLA617A (VSH) optocoupler be available to customers and designers?

Samples and production quantities of the VOLA617A are available now, with typical lead times of eight weeks. According to Vishay, the device targets automotive, industrial, and other markets requiring high-voltage isolation, supporting faster design-in for 800 V EV and automation systems.