Standex Announces Closing of Sanyu Switch Co., Ltd. Acquisition

SALEM, N.H., February 20, 2024 /PRNewswire/ — Standex International Corporation (NYSE:SXI) confirms that it has closed on its previously announced acquisition of Sanyu Switch Co., Ltd.. In its first year of ownership, the Company still expects the acquisition to be accretive to its earnings and to achieve a double-digit return on invested capital.

“Completing the acquisition of Sanyu Switch Co., Ltd. continues Standex’s portfolio strategy of focusing on higher margin businesses in faster growing markets,” said Standex Chairman and CEO David Dunbar. “We look forward to building on the legacy established by Sanyu and its employees over the last 50 years.”

About Standex
Standex International Corporation is a global multi-industry manufacturer in five broad business segments:
Electronics, Engraving, Scientific, Engineering Technologies, and Specialty Solutions with operations in the United States, Europe, Canada, Japan, Singapore, Mexico, Turkey, South Africa, India, and China. For additional information, visit the Company’s website

About Sanyu Switch Co., Ltd.
With corporate headquarters in Tokyo, Japan, Sanyu Switch Co., Ltd. designs and manufactures reed relays, test sockets, testing systems for semi-conductor and other electronics manufacturing, and other switching applications. The Company’s primary manufacturing facility is in Kumamoto, Japan. For additional information, visit the Company’s website at

SOURCE: Standex International Corporation

For further information:
Christopher Howe
Director of IR
(773) 754-5394

113D Series, The New Surface Mounting Type Relays

The 113D series Sanyu

The 113D series Sanyu released is a surface mounting-type.

The performance makes breakdown voltage 3000 VDC (between contacts to coil : 7000 VDC) .
Addition to this, high insulation 10¹²Ω is the feature.

Package size: 30.2㎜(L)×17㎜(W)×8.7㎜(H)

LINK: 113D Series

New smallest Surface Mount Relay with high RF Performance


Sanyu has released the smallest surface mount relay,

which is the successor of 2R series with High Frequency capability.

Package size:  5.95mm (L) x 3.81mm (W) x 3.6mm (H)

This new 2H WJ series is suitable for the ATE, telecommunications and wireless markets,

which require higher frequency and high density arrangement.


LINK: 2H WJ Series

New 4 Form A SMT Relay


Sanyu has released for the multi-pole surface mount relay.

The 1H-4A series is configured in small surface mount package with 4 channels.

Inside, each channel has 50Ω coaxial shield and superior RF performance.

This 4FormA configuration will also provide you higher DC current capability.


LINK: 1H-4Ax8G

New Ultra Density Form C Relay For DC Applications


The 104E-1T 1FormC(A+B) small package SIP series added new DC relay.  With “High Contact Rate”, “High Reliability” in small package, this DC Performance relay reduces pins and internal shield to optimize for DC applications.  Similar to the other 104E family, Magnetic Shield is a standard feature in this series and helps high-density small mounting area.- 10W Contact Rate / 100VDC Switching
– 11.43mm x 3.81mm Mounting Area
– Standard Magnetic Sheild

LINK: 104E-1Tx0N2

New High Density Form C in High Temperature Operating Product Line


In order to meet high density market demand, 1 Form C (SPDT) relay has been added to 6D high temperature operating series.
Since SPDT contact form allows double the density in tree-circuit.
Suitable for Load board applications and high density switching matrix.- SPDT High Density
– 5V and 12V Coil available
– Required Mounting Space: 5.08mm x 5.08mm
– Magnetic Shield

LINK: 6D-1Cx0N0-52

The Ultra Breakdown Relay


The Ultra Breakdown relay, HA702-118, is added to Sanyu high breakdown products line. The HA702-118 achieves the highest spec among this product family, 18KV breakdown voltage between contacts (max) and 15KV
switching voltage (max). In order to reduce assembly cost and difficulties, HA702-118 series adopts structure with the high breakdown signal cables protruding from the top of the relay’s surface and underneath coil lead for relay positioning and anchoring. We continue to support the fields of electrical safety-related validation, testing,inspection, and services.

– Ultra Breakdown Voltage 18.0KV Between Contacts
– Unique Assembly Design
– Switching Voltage 12.0KV

LINK: HA702-118

The latest High Breakdown Voltage Reed Relay


As the leader in high breakdown voltage reed relays, Sanyu Electric is pleased to introduce our latest series of reed relays ideally suited to meet the high standards set by industries supporting breakdown voltage measurement, ESD and automotive device testing equipment and instrumentation. We are proud to be an approved vendor within the automotive industry’s global supply chain where high quality and high reliability are a must.
LINK: High Breakdown Voltage

We have Moved

We have moved.

New address:  6475 Camden Ave., Suite 103,  San Jose, CA 95120

Introducing De Facto Standard Series


The 20D-1Cx0N1-40 is one of 20D 1 Form C series. Non electrostatic shield configuration provides cost effectiveness, and design flexibility for wide range of applications including OEM designs.Key Features:

– De Facto Standard 1 Form C
– 5.0V/12.0V Coil
– Low Power Consumption / Higher Coil Resistance
– Breakdown Voltage 1500V (Between Contacts to Coil)

LINK: 20D-1C10N1-40


The 20E-2A10N0-40 is one of multi-pole reed relay series, configured as 2 Form A.Designed with De Facto Standard package and layout, provides higher density capability. High reliability and long life expectancy.Key Features:

– De Facto Standard 2 Form A
– 5.0V Coil- Low Power Consumption / Higher Coil Resistance
– 200V Switching Voltage
– Long Life Expectancy (1500 Million Operations)

LINK: 20E 2 Form A


Due to market demands of high-density with multi-pole solution, the 22D 2 Form C series is designed. Adapted non electrostatic shield structure, this relay provides De Facto Standard pin layout with multi-pole function.

Key Features:

– De Facto Standard 2 Form C
– 5.0V/12.0V Coil
– Breakdown Voltage 1000V (Between Contacts to Coil)

LINK: 22D 2 Form C


The 27D-1C12N1-40 is suitable for automated test equipment and RF requirement. Electrostatic shield is standard feature and provides superior RF characteristics in 1 Form C PCB through hole relay.

Key Features:

– De Facto Standard PCB Through Hole Package
– 5.0V Coil

– Low Power Consumption / Higher Coil Resistance

LINK: 27D 1 Form C

DCF 1.0

The 102R series comes in a small Micro SIP package with magnetic shield and internal coil suppression diode as standard features.These features allow high-density mounting and suitable for wider range of application, such as automatic test equipment, instrumentation,burn-in test, and telecommunication applications.

Key Features:

– 200V Switching Voltage
– 1.6A Carry Current
– Long Life Expectancy (1500 Million Operation)

LINK: 102R 1 Form A

Obsolete and limited availability products

Sanyu Electric, Inc. announced obsolete products, coaxial relay and attenuator, and the limited support for affected products.

Product Affected:
Coaxial Relay Series (Appendix A: Obsolete Coaxial Relays Part Number List)
Programmable Attenuator Series (Appendix B: Obsolete Attenuator Part Number List)

Key Dates:
Last Order Acceptance: November 25, 2011
Last Ship Date: March 31, 2012

Part Number Lists can be downloaded from Library page.
Please contact our sales for detail.

New 2 Form C SMT Relay for ATE Pin-Electronics


Sanyu has released for the ATE Pin-Electronics differential responsibility reed relays.
One SMT package effects assembly space saved 25% compared with Sanyu existing SMT product line.
Compared to transfer contact, our 1A + 1B contacts solution provide ultra high performance reliability and credibility.

Key Features:

  • Coil Voltage 5.0 and 12.0V
  • Reflow Oven Temperature EIA STD J-STD-020D
  • RF Performance up to 4.0GHz
  • Reliability 300 million over
  • Impedance 50Ω

LINK: 1H-2T Series

High Temperature Operating Reed Relay Catalog Available


Besides being the worldwide top leading Reed Relay Manufacturer in ATE and Instrumentation markets, Sanyu also offers great variety of products lines and has released the high temperature operating reed relay’s catalog.Technical data included:

  • Contact Resistance
  • Contact Resistance Distribution
  • Carry Current Capacity
  • Reliability Weibull Distribution Analysis
  • Coil Temperature Rise
  • Operate and Release Voltage
  • Operate/Release Voltage vs. Cycle
  • Operate/Release Voltage Distribution
  • Magnetic Interference
  • S-Parameter
  • Eye Diagram

LINK: Catalog Request
LINK: High Temperature Operate

We have moved

November 12, 2010

As of November 15, 2010, Sanyu Electric, Inc. will move to new location.

New Address:

6475 Camden Ave., Suite 100
San Jose, CA 95120
Tel: 408-269-2800
Fax: 408-269-2006

If you have any question, please contact administration.

The Latest FPC Test Connector system


In electronic devices, such as cell phones and digital cameras, flexible printed circuit boards are often used to make an electrical
connection between boards and modules in place of cables.Traditionally, connectors have been used to test the electrical properties of these components, in order to identify the need for any design or manufacturing modifications, however, because of durability issues, connectors have a very short life. SANYU proudly introduces the latest FPC Test Connector system using interposer technology(ElastechTM).By using this interposer technology(ElastechTM), our test connector achieves excellent durability, reliability and high frequency characteristics, in addition to easy maintenance and high operability.LINK: FPC Test Connector

High Insulation Resistance / High Voltage reed relay


Sanyu has release a new reed relay with 5KV breakdown Voltage and 1012 Ω Insulation resistance.
This unique structure with a standard shield achieves very low leakage at the application level. This allows for improved efficiency of test when high power demands continue to grow in switching devices and very low leakage is required for testing semiconductors.

Key Features:

  • 5KV Breakdown Voltage
  • 3.5KV Switching Capable
  • 1012 Ω Insulation Resistance

LINK: 137D Series

High Power Surface Mount 1 Form A + 1 Form B


Sanyu has announced high power miniature surface mount Reed Relay.
The 190H series relay has been developed to meet the high density trend of small packages, with higher voltages and higher current capabilities that are required for surface mount relays.

Key Features:

  • 50 Watts Contact Rating and 350V Switching Capability
  • 2.8A Current Rating
  • 400V Breakdown Voltage
  • 1000 x 106 Cycle Life Expectancy

LINK: 190H Series

Miniature SPDT 3.3V Coil Drive released


Sanyu has expanded its 1H-1T series by adding 3.3V operating version. Demand of lower drive voltage,
Sanyu developed 3.3V coil drive to its SPDT surface mount series.

Key Features:

  • 3.3V Nominal Coil Voltage
  • 5 Watts Contact Rating, 50V Switching
  • 300 Million Cycles
  • 10.2 x 5.0 x 8.2mm (J-Lead)

LINK: 1H-1T Series

High Temperature Operation Capability -20˚C to +155˚C

Close-up of sunflower over sunset sky

Necessary High Temperature Operation? We always prepare and provide solutions for such requirement.
The famous question is whether you can achieve operation and unchanged electrical characteristics with higher standard of reliability under the harsh environment. Sanyu Electric, Inc. provides answers all the time, Yes.Please visit our High Temperature Operation section for details.

LINK: High Temperature Operate

Differential Signal and Common Mode Signal in Time Domain

Sanyu Electric, Inc. published the 3rd article of High Speed Signal Theory. This article is intended to illustrate further understanding of high speed signal and the differential signaling which commonly used in “multi-Gbps” technology, and to provide a guide line for application engineers avoiding any “traps” during designing process through the detail discussion of the difference between “100 ohm differential signal path” and “dual 50ohm signal path”.


1. Mode of Signal
2. Impedance and Signal Path
3. Mode Conversion

This article can be downloaded from Library page

Ultra Miniature SIP package


104E package provide approx 40% smaller mounting space than   conventional SIP package.
Even shrinking to smaller package size, still providing well-known high reliable 10W contact rate.
1 Form C (1A + 1B) function also available. Ideal for high density high reliability test board applications. See more details on SIP section.

LINK: 104E series

Miniature SPDT surface mount reed relay released


Due to meet strong market demand of “high density” capability with “higher standard of reliability”, Sanyu Electric, Inc. announced a New Single Pole Double Through(SPDT) surface mount reed relay series. This 1D-1T series, unlike conventional small SPDT surface mount relay, achieved Higher Reliability and Higher Contact Rate. Implementing our unique 1A+1B technology with the latest and sophisticated engineering aid, this 1D-1T series provides more than 1.5 times higher contact rate and more than 300 million life expectancy as same as our well known reed relay series with the same mounting space.

Key Features:

  • 5 Watts Contact Rate, 50V Switching Capable
  • 300 Million Cycle
  • 10.2 x 5.0 x 8.2mm (J-Lead)
  • Magnetic Shield as standard feature

LINK: 1D-1T series

Theoretical Aspects in Analyzing High Speed Reflection and Transmission

After receiving favorable feedback from readers on the article of the “Basic Theory for High Speed Signal”, Sanyu Electric, Inc. decided to publish the Part 2 of this article series. The article discusses the basic understanding of differences between TDR/TDT (Time Domain) and VNA measurement (Frequency Domain), and gives mathematical explanations about the fundamentals of complicated real world signal behavior analysis.


1. Analysis of Reflected and Transmitted Signals
2. Summary of Basic Mathematics
3. References

This article can be downloaded from Library page

High Density / Low Profile Technology


Ultra Density SMT:Recent trend of miniaturization and requirement of large number of channels in an application, reliable ultra miniature switching device are demanded.
Development philosophy with inherited reliability and assembly capacity of 1E Series was put into succession of the 9E Series small form factor reed relay compared with 1E-14J, the mounting area for this series achieved 30% shrinkage with the same great reliability.

The 9E Series has a long product life that is widely accepted by the ATE, telecommunications and  wireless communications markets.

LINK: Ultra Density


Low Profile SMT:1E Series was put into succession of the 1E Low Profile Series. Gull-Wing and J-Lead achieved low height of 3.6mm.  Key feature of this low profile series is maintaining same pin assignment and land patterns.
Design Engineers easily utilize current board layout data for new development and shorten development schedule of their board design. This series is already in mass production for the ATE, telecommunications, and other instrument markets with great acceptance for low height and reliability.

LINK:1E Low Profile Series

Basics for Quantitatively Working with High Speed Signal

Sanyu Electric, Inc. published and distributed the summary of “Basic Theory” for high Speed signal application designers, and as an educational material for young engineers. As a part of our social contributions to technological progress in the engineering society, Sanyu Electric, Inc. has provided our core value of research and development. This article gives explanations of the essential signal behavior at GHz/Gps bandwidth, ranging from the concepts of basic formula to basics of S-Parameter.


1. Time Speed
2. Power Transfer
3. Time and Space Signal
4. Reflection and Transmission

This article can be downloaded from Library page