New EX‑423 Evacuated Miniature Crystal Oscillator for Critical Timing in Low- and Battery-Powered Applications

Microchip Technology (Nasdaq:MCHP) introduced the EX‑423 Evacuated Miniature Crystal Oscillator (EMXO), a compact, low‑power timing device for high‑stability, high‑reliability applications.

Rhea-AI Summary

Microchip Technology (Nasdaq:MCHP) introduced the EX‑423 Evacuated Miniature Crystal Oscillator (EMXO), a compact, low‑power timing device for high‑stability, high‑reliability applications. The EX‑423 operates from 10–20 MHz, in a 13 mm x 13 mm package, and is ruggedized in an ultra‑high vacuum for thermal insulation and frequency stability.

It features a four‑point mounted quartz crystal for enhanced shock survivability and reduced g‑sensitivity, power consumption of 1W during warm‑up and 0.2W at +25°C, and targets GPS/GNSS, military radios, medical devices, seismic systems, test equipment and satellite communications.

Positive

• New EX‑423 EMXO expands Microchip’s high‑performance timing portfolio
• Low power consumption of 1W warm‑up and 0.2W at +25°C steady state
• Compact 13 mm x 13 mm package for space‑ and power‑constrained designs
• Ultra‑high vacuum sealing and four‑point crystal mount for improved stability and shock survivability
• Now commercially available, enabling near‑term design‑in for targeted applications

Negative

• None.

Argus May 14 session

+0.34% close to close 0.6x rel. volume Open Argus

Details

News Market Reaction – MCHP

On May 14, the day this news came out, MCHP closed 0.34% above the previous close.

Data tracked by StockTitan Argus for the May 14 session.

Key Figures

Package size: 13 mm x 13 mm Frequency range: 10–20 MHz Warm‑up power: 1 W +1 more

Package size

13 mm x 13 mm

Low‑profile EX‑423 EMXO package for space‑constrained designs

Frequency range

10–20 MHz

Standard operating frequency range of EX‑423

Warm‑up power

1 W

Power consumption during warm‑up of EX‑423

Steady‑state power

0.2 W at +25 °C

Power consumption in steady state for battery‑powered uses

Historical Context

5 past events · Latest: May 07

5 events

1. May 07

   Dividend announcement

   24h Move

   -2.5%

   Declared quarterly cash dividend of $0.455 per share for common stockholders.

2. May 07

   Earnings results

   24h Move

   -2.5%

   Reported strong Q4 and fiscal 2026 sales and EPS with higher Q1 guidance.

3. May 07

   Product launch

   24h Move

   -1.3%

   Introduced LAN878x/LAN888x Single Pair Ethernet PHYs with MACsec and TSN.

4. Apr 28

   Security products update

   24h Move

   -3.0%

   Expanded Trust Shield PQC‑ready root of trust and secure boot controllers.

5. Apr 27

   Capacity expansion

   24h Move

   -2.9%

   Opened new Alabama facility to increase hydrogen maser manufacturing capacity.

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

Key Terms

evacuated miniature crystal oscillator, rf performance, allan deviation, gps/gnss

4 terms

evacuated miniature crystal oscillator technical

"announced the EX‑423 Evacuated Miniature Crystal Oscillator (EMXO), a compact, low‑power"

An evacuated miniature crystal oscillator is a very small timing device that uses a vibrating crystal sealed in a vacuum to generate a stable electrical pulse used for keeping precise time in electronics. Removing air and contaminants reduces drift and noise, so the part stays accurate under temperature changes and over long periods. For investors, devices that use or supply these oscillators can signal higher product reliability and command premium pricing in markets like communications, aerospace and industrial controls — think of it as a high‑quality watch movement versus a cheap clockwork.

rf performance technical

"the EX‑423 delivers high RF performance in a low‑profile 13 mm x 13 mm package"

RF performance describes how well a device, component, or system transmits and receives radio-frequency signals, covering range, signal strength, sensitivity, interference resistance, and power efficiency. For investors, RF performance matters because it determines whether products meet customer and regulatory needs, influence market competitiveness, and affect costs and battery life—much like an engine’s reliability and fuel efficiency determine a car’s appeal and resale value.

allan deviation technical

"combines ultra‑low phase noise with tight temperature control, strong short‑term stability (Allan deviation)"

A statistical measure that shows how the variability of a time series (like prices or rates) changes when you average observations over different time windows; it is the square-root form of Allan variance. Think of it like testing how shaky a camera image gets at different exposure lengths: short windows reveal fast jitter, long windows reveal slow drift. For investors, it helps distinguish fleeting noise from persistent trends, improving risk estimates, horizon choices and algorithm calibration.

gps/gnss technical

"making it well suited for GPS/GNSS tracking, military radios, medical devices"

GPS/GNSS are networks of satellites and ground stations that tell devices their exact location and provide precise timing, like a digital map and clock in the sky. Investors care because that location and timing data enable and improve countless products and services—shipping, ride-hailing, farming, telecoms and financial trading—and can drive revenue, efficiency gains and regulatory requirements across many industries.

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

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Ruggedized in an ultra-low vacuum for enhanced thermal insulation, the EX-423 delivers stability and RF performance

CHANDLER, Ariz., May 14, 2026 (GLOBE NEWSWIRE) -- Microchip Technology (Nasdaq: MCHP) today announced the EX‑423 Evacuated Miniature Crystal Oscillator (EMXO), a compact, low‑power timing solution designed for applications that demand high stability, accuracy and long‑term reliability. Building on the company’s EX‑421 portfolio, the EX‑423 delivers high RF performance in a low‑profile 13 mm x 13 mm package for space‑ and power‑constrained designs.

Ruggedized for demanding environments, the EX‑423 is sealed in an ultra‑high vacuum designed to provide optimal thermal insulation and help improve frequency stability. Its quartz crystal uses a four‑point mount to enhance shock survivability and reduce g‑sensitivity, making it well suited for GPS/GNSS tracking, military radios, medical devices, Ocean Bottom Node (OBN) seismic systems, test and measurement equipment and satellite communications.

“When developing the EX‑423, we focused on the key parameters designers use to evaluate high‑performance reference oscillators,” said Randy Brudzinski, corporate vice president of Microchip’s frequency and time systems business unit. “Delivering this level of performance in a rugged, small footprint helps customers simplify designs without compromising timing accuracy.”

The EX‑423 combines ultra‑low phase noise with tight temperature control, strong short‑term stability (Allan deviation), fast warm‑up, and long‑term frequency stability. Operating over a standard 10–20 MHz frequency range, the device consumes 1W during warm‑up and as little as 0.2W at +25 °C in steady state, helping extend battery life while maintaining a clean, stable reference under specified operating conditions.

Microchip offers an extensive portfolio of clock and timing systems from miniature component oscillators to small plug-in timing server cards to multi-rack time scale systems. Recognized as a contributor to the world's time, Microchip's timing solutions are trusted, reliable and resilient. For more information, visit Microchip's Clock and Timing Systems web page.

Pricing and Availability

The EX-423 EMXO is now available for purchase. For more information, technical or sales support please reach out to a Microchip Sales Representative or email: VOP-Support@microchip.com.

Resources

High-res images available through Flickr or editorial contact (feel free to publish):
•    Application image: https://www.flickr.com/photos/microchiptechnology/55251594248/sizes/l  

About Microchip Technology:
Microchip Technology Inc. is a broadline supplier of semiconductors committed to making innovative design easier through total system solutions that address critical challenges at the intersection of emerging technologies and durable end markets. Its easy-to-use development tools and comprehensive product portfolio supports customers throughout the design process, from concept to completion. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support and delivers solutions across the industrial, automotive, consumer, aerospace and defense, communications and computing markets. For more information, visit the Microchip website at www.microchip.com.

Note: The Microchip name and logo and the Microchip logo are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. All other trademarks mentioned herein are the property of their respective companies.

Editorial Contact:
Kim Dutton
480-792-4386
kim.dutton@microchip.com

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What is the Microchip (MCHP) EX‑423 Evacuated Miniature Crystal Oscillator?

The EX‑423 is a compact, low‑power evacuated miniature crystal oscillator designed for demanding timing applications. According to Microchip, it targets high stability, accuracy and long‑term reliability needs in space‑ and battery‑constrained electronic systems across multiple industries.

What are the key specifications of Microchip’s (MCHP) EX‑423 EMXO?

The EX‑423 operates over a 10–20 MHz range, uses a 13 mm x 13 mm package, and consumes 1W during warm‑up and 0.2W at +25°C. According to Microchip, it combines ultra‑low phase noise, tight temperature control and strong short‑term and long‑term stability.

Which applications does the EX‑423 EMXO from Microchip (MCHP) target?

The EX‑423 is intended for GPS/GNSS tracking, military radios, medical devices, OBN seismic systems, test and measurement equipment and satellite communications. According to Microchip, its ruggedized, low‑power design suits environments requiring high stability, reduced g‑sensitivity and long‑term reliability.

How does the EX‑423 EMXO improve reliability in harsh environments for MCHP customers?

The EX‑423 is sealed in an ultra‑high vacuum and uses a four‑point crystal mount to enhance shock survivability and reduce g‑sensitivity. According to Microchip, this construction supports frequency stability and reliable timing performance in demanding, vibration‑prone or thermally challenging environments.

Is the Microchip (MCHP) EX‑423 EMXO currently available to purchase?

Yes, the EX‑423 EMXO is now available for purchase. According to Microchip, customers can obtain more information and technical or sales support through Microchip sales representatives or by emailing the provided VOP‑Support contact for clock and timing solutions.

How does the EX‑423 EMXO address power constraints in battery‑powered designs?

The EX‑423 is designed with low power consumption, using 1W during warm‑up and as little as 0.2W at +25°C steady state. According to Microchip, this helps extend battery life while maintaining a clean, stable timing reference under specified operating conditions.