“KOA Thermal Design Technology“ – New at the design support tools page on our website
KOA has added the new movies to the chapter “KOA Thermal Design Technology“ on the KOA website KOA website.
Summary
“Season 1” contains 3 videos with training sessions of fundamental resistor information.
=> I recommend for all to watch these 3 videos to learn a bit more about resistors and their temperature behaviour.
The videos also include fundamental information about Leaded and SMD resistors, as well as information about “Ambient Temperature & Terminal Part Temperature”, “Derating curves”, etc.
Now, new released is:
“Season 2”
This season 2 also contains 3 videos but these videos are more interesting for the design centers of our customers.
– Session 1 explains the effect of temperature decrease when attaching thermocouples to the component which temp. should be measured.
– Session 2 explains the differences of measuring with “Type-T” and “Type-K” thermocouples.
– Session 3 explains temperature measuring with IR thermography and problems with different magnification lenses.
….to be followed by more Seasons soon…..
New Information on the KOA Website (RoHS, REACH)
We would like to inform you, that KOA Corporation is now ready to offer and to promote the new, improved varistor series “NV73S”.
The NV73S has been released as a replacement for the large NV73 products (NV73 2E, NV73 2J, NV73 2L). The large NV73 products NV73 2E, NV73 2J, NV73 2L were already classified as “NRND” since 20.02.2023. The products have now been moved to the “EOL” pages at the website.
The new datasheet of the NV73S is available here, and the datasheet to the updated pages of the smaller parts of the NV73 series here. It now only shows 1J, 2A and 2B (the sizes 2E, 2J and 2L have been deleted).
Advantages of new NV73S compared to the old NV73
– Lower height dimensions
– Higher Max. Energy (J)
– Higher Max. Peak Current Ip (A)
– Improved pricing
Features and Benefits vs. Competition:
– Low voltage SMD varistor with similar performance than leaded disk varistors
– Can absorb positive and negative surges
– Lower leakage current (µA) and higher max. peak current than competition
– NV73S2E(1210) allows more than 2 times max. peak current vs. competition, providing greater surge protection and more operation. It is possible to propose a downsizing from size 1812.
– NV73S2J(1812) allows 1.5 times higher max. peak current vs. competition, providing greater surge protection and more operation.
– NV73S2L(2020) allows ~ 2 times higher max. peak current vs. competition, providing greater surge protection and more operation.
Join Us at the Arrow MultiSolution day in Ljubljana!
Do you want to visit Slovenia ? Do you want to learn about latest technologies?
Why not both — join Arrow on 20th of March alongside 20 leading suppliers in the industry. As of today, already 150 registered experts from the industry, be a part of it and register still till this Friday, March 15. 23 confirmed manufacturers of electronic components, 4 arrow development centers represented, 10 presentations. Join us on free event for one hour or whole day in Four Points by Sheraton MONS hotel, Ljubljana next Wednesday, March 20!
Join Us at the Automotive Expo & B2B Meetings in Sibiu!
We are thrilled to announce that Rayscomponent’s, a leading provider of electronic components and connectors, will be participating in the upcoming Automotive Expo & B2B Meetings, co-located with the Manufacturing Expo in Sibiu. This event will take place on March 28, 2024.
Event Details:
- Date: March 28, 2024
- Opening Hours: 9:00 – 18:00
- Venue: Redal Expo, Str. Johann Sebastian Bach, nr. 4 (Entrance B), 550227, Sibiu, Romania
Why Attend?
- Networking Opportunities: Connect with industry leaders, decision-makers, and potential partners.
- Explore New Technologies: Discover cutting-edge solutions and advancements in automotive electronics and components.
- Business Development: Explore new business opportunities and forge valuable partnerships.
- Knowledge Sharing: Attend informative sessions and workshops to stay updated on industry trends and best practices.
Visit Our Booth: Stop by the Rayscomponent booth at Stand #55 to explore our latest offerings in electronic components and connectors tailored for the automotive industry. Our team of experts will be on hand to discuss your specific requirements and how our products can add value to your projects.
Don’t Miss Out! Join us at the Automotive Expo & B2B Meetings for an immersive experience in the world of automotive technology and innovation. Register now and be a part of this exciting event!
For more information about the event, visit the official Automotive Expo & B2B Meetings website.
New Information on the KOA Website (RoHS, REACH)
We would like to inform you that KOA has updated the content of the pdf’s on the KOA website for the following topic.
Measures for environmental hazardous materials
https://www.koaglobal.com/product/common/rohs
- Certificate_of_RoHS_Compliance_Feb2024
- Certificate_of_RoHS_Compliance_exemption_Feb2024
- Certificate_of_EU_REACH_SVHC_Compliance_Feb2024
Information on “Design Support Tools” on the KOA Website
We would like to inform you that KOA has added new information to the design support tool page on the KOA website.
“Revision of an international standard related to rated power of resistors“ has now been released on the KOA website.
This page describes the revision of IEC60115-8 published in August in which KOA has been taking leadership to include the concept of terminal part temperature specification in the standard.
Here you can find the link:
https://www.koaglobal.com/design_support_tools
https://www.koaglobal.com/design_support_tools/Revision-of-terminal-temperature-regulations?sc_lang=en
PON KOA-23-01
KOA Europe regrets to announce the obsolescence of KOA´s “Chip Inductor LPC* series”.
- Affected product: Chip Inductor Series LPC*
- KOA part number: LPC4045, LPC4235 , LPC4545*.
Please observe that the following product is discontinued due to aging facilities and difficulties in procuring materials (EOL request from supplier). Thus increased risk of production continuation due to these factors.
- Effective Date of the obsolescence: 20th December 2026
- Last time buy: 20th December 2024
- Date of last shipment: 20th June 2027.
New Technical Notes on “Design Support Tools” on the KOA Website
We would like to inform you that KOA has added a new technical note to the “Design support tools” page on the KOA website.
All technical notes can be found here:
https://www.koaglobal.com/design_support_tools/tech_notes?sc_lang=en
WN73H – new resistor series
We would like to inform you, that KOA Corporation is now ready to offer and to promote the new resistor series “WN73H” to the market.
WN73H – Wide Terminal Thin Film Chip Resistors
- WN73H1J (size 0306)
- WN73H2B (size 0612)
Attached is the new datasheet and the link to the website:
https://www.koaglobal.com/-/media/Files/KOA_Global/EN/product/commonpdf/wn73h.pdf?la=en
Webinar “Lithium-Ionen-Kondensatoren in der Anwendung”
Our distribution partner GVA – Power Electronics Experts regularly organizes webinars for engineers, technicians and professional buyers. We at Jianghai Europe have already contributed our expertise on numerous topics. In line with the serial shortie of this newsletter issue, we would like to draw your attention today to the next webinar date at GVA with our participation:
Date: 12.10.2023 · 10:00 Uhr
Topic: “Lithium-Ionen-Kondensatoren in der Anwendung: Hohe Energie- und Leistungsdichte bei geringem Volumen und Gewicht”
Speaker: Alexander Schedlock, Jianghai Europe Electronic Components GmbH
Language: German
Registration: Click here to register on the GVA site
LiC of the 3rd Generation: Higher Energy at the same design
The switch to fluctuating energy sources such as wind and solar is also leading to an increase in demand for energy storage systems and intelligent energy management. The reason for the increasing use of capacitors instead of chemical battery systems is based on the unbeatable advantages of the supposedly “old” capacitor technology.
Under the general name of „Energy-C“, Jianghai has been developing and manufacturing EDLC and LiC products for more than 10 years already. In response to the increasing demand, Jianghai has continuously intensified its research and development investment in the field of lithium-ion capacitor technology. For instances, significant progress in energy density has been achieved through further optimization of electrode materials, electrode formula, electrode as well as electrolyte and additive ratio: Compared with earlier products, the energy density of radial-type lithium-ion capacitors has been almost doubled, while retaining the technological advantages of long life, rapid charging and discharging, and a wide operating temperature range. Would you like to learn more? Then please feel free to contact:
Alexander Schedlock
Your expert for Energy-C
Telephone: 0049 21 51 65 20 88-63 or e-mail: a.schedlock@jianghai-europe.com
Info on our website on the topic of Energy-C you will find HERE.
KOA will stop the production LA73 series:
KOA Europe regrets to announce the obsolescence of KOA´s “Chip varistor NV73DS*series”
Please observe that the following product is discontinued according to the dates and terms represented in this obsolesce notice.
Please observe that the following products are discontinued according to the dates and terms represented in this obsolescence notice.
ADAM TECH – Temperature Sensor Cables
We are thrilled to announce that ADAM TECH has Temperature Sensor Cable Assemblies.
Application
- Climate control devices
- Consumer products such as ATMs and printers
- Home appliances such as refrigerators and ovens
- Automation
Integrating the existing sensor cable, we add 4 SKU this year, and expand it into a new product line. Following introduction is for NPI 4 SKU:
Adam Tech P/N
- P/N: CA-TS-001
- P/N: CA-TS-002
- P/N: CA-TS-003
- P/N: CA-TS-004
Adam Tech Web: The Temperature Sensor Cable series has been uploaded to our website. You can find the details here.
FIND THE RIGHT COMPONENT FASTER – Product search by order code or parameters
With our “series finder”, you can find the Jianghai capacitors you need for your application even faster. Either by searching directly for the order code you know. Or by entering important key data for your desired product and getting a list of the possible series. Try it out and let us know what you think of it.
Technical Training
If Jianghai capacitors may be interesting for your application, we offer extensive training for your team at the desired product group. Our experienced Technical Sales Team has the expertise that we are happy to share. If you are interested, please contact us.
TECH TALK CAPACITOR – Electric Capacitor Bus
As an environmentally friendly alternative to classic combustion engines, electric and hybrid drives in buses represent one of today’s e-mobility solutions. These systems rely on classic, electrochemical batteries to store the electric drive energy. Depending on the battery technology used, there are other issues in addition to the typical range question,
such as the charging concept, weight, volume requirements and, in particular, safety. Especially the last point is of great importance in the field of passenger transport. In contrast to many manufacturers who rely solely on battery technologies, Jianghai is taking a new approach: Instead of ever larger batteries, Jianghai is proposing the use of supplementary capacitor modules in buses…
» Technical memo read on (PDF)
Large Radials & Snap-Ins for Heat Pumps
A topic that is currently dominating the public debate has of course long since reached the market for capacitors: heat pump technology. From our perspective, it shows that developers are no longer just relying on classic snap-in products, but are increasingly asking for large radial components for installation in heat pumps. No wonder, since the radials are many times cheaper and just as effective thanks to the capacity-volume product. Jianghai manufactures radial electrolytic capacitors in dimensions of up to 22 x 41 or 18 x 60 in mass production – and can deliver quickly! Are you interested? Then we look forward to your questions!
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New Technical Notes on “Design Support Tools” on the KOA Website
We would like to inform you that KOA has added a new technical note to the design support tool page on the KOA website.
https://www.koaglobal.com/design_support_tools/tech_notes.
“KOA Thermal Design Technology“ – New at the design support tools page on our website
KOA has added the new chapter “KOA Thermal Design Technology“ to the design support tool page on the KOA website.
A wide range of knowledge on thermal design of electronic devices such as trends, the temperature management of components and the measurement technology is offered by an expert. We are now releasing Season 1, containing 3 video training sessions with fundamental information.
KOA Product or Process Change Notification:
Today we would like to inform you about a PCN for addition of production site for our TLR2B, TLR3A series (Metal Plate Chip) series. Affected product: TLR2B, TLR3A series (Metal Plate Chip)
KOA part number: TLR2B*, TLR2BN*, TLR2BW*, TLR2BP*, TLR3A*, TLR3AW*, TLR3AP*, TLR3APS* series
Customer part number: On request.
Description of change: In addition to the current production base “East Wing factory” the following
plants will be added “Nakanoto factory no sho).
Current: KOA Corp. (East Wing factory )
New: KOA Corp. (East Wing factory ) and KASHIMA KOA DENKO CO.LTD (Nakanoto factory)
Reason for the change:
1. Increased production capacity
2. BCP (Business Continuity Plan)
Effective Date of the change: 01.04.2023
Start shipping from new factory upon approval from customer.
Product identification: Depends on Lot number.
Identification by product appearance can not be done
Sample availability: Available on request
Quality and reliability: In this PCN, manufacturing facilities, operation method and management method are manufactured by the same manufacturing process. In addition, since the material and structure of the product are exactly the same, it does not affect the characteristics of the product.
HVD P08 – Thin Film Network Resistors for High Voltage Divide:
KOA Corporation has updated the datasheet of the above mentioned series on our global webpage.
The old version of our current HVD (24pin) was moved from “Products” to the “End of life product information” information page. Currently, there is no tentative EOL Date for Q24 products of HVD.
=> In case of new designs, the new HVDP08 is recommended, even if it has the same or even better specification than the old HVDQ24.
The number of terminals was changed from 24 pins to 8 pins. (P/N: HVDP08)
The resistance value range (11.5MΩ or less) of the existing HVDQ24 (24 pin) is also supported by the new HVDP08
High-voltage voltage divider circuits of xEV (BMS, DC / DC converter, inverter)
Especially for high-precision voltage detection applications
– Quality samples for R-values up to 51MΩ are available
– Final production review for mass production is scheduled for “End of October 2022”
Here you can find the datasheet.
PCN KOA-22-008 BxRV series add production site:
We would like to inform you about a PCN for an additional production site of our BGRV series, BSRV series and BWRV series.
Description of change: Add production site.
Current: KOA Electronics Yasuoka factory
New: KOA Electronics Yasuoka factory, Shanghai KOA Electronics Co., Ltd.
Reason for the change: For a stable supply.
Improvement of quality during transportation.
Effective Date of the change: 05.10.2022
Product identification: Identifiable by the manufacturing plant number indicated on the product.
Can be identified by products label the country of origin.
Sample availability: Available on request
Quality and reliability: Supporting Quality, reliability, characterization or manufacturability data are available or plan to generate to above data.
KOA has done further developments and improvements for the HSG73P series:
This HSG73P**AT series has high heat resistance up to +175°C and passed 1000 cycles of -55°C/+175°C heat shock tests (delta R less than 1% – refer to “Performance”).
The performance of temperature cycling is improved by using conductive resin as stress relaxation layer in the bottom inner electrode (suitable for high-strength-solders as well as SAC-solders).
The product is endurable up to 10% of its rated power at the maximum operating temperature of +175°C and is suitable for the applications under the harsh environment, like an integrated mechanical/electrical in-vehicle unit.
HSG73P**AT can replace other components of bigger case size, hence to reduce mounting space.
HSG73P**T is recommended in case the temperature requirement is +155°C or higher or in case the requirement of more rated power that the existing products (SG73P, etc.).
HSG73P**AT is a good choice in case of more heat shock resistance is required up to +175°C (see “rapid change of temperature characteristics” up to +175°C / 1000 cycles).
Target Applications / Examples:
Automotive: ECUs: Power control unit, gear box electronics, various sensors around the engine, Mechatronic integration of motor drive unit etc.
Industrial: Devices operated under high temperature (power modules, high temperature electronics, power supplies, measuring equipment), peripherals of power devices, excavators etc.
Here you can find the datasheet.
NRND Shunts and alternative products:
From the end of September on, KOA will not recommended for new design these parts: PSA, PSB, PSI, PSE TLR3A (1, 2, 3, 4 milliohm), TLR1E (10 milliohm) TLRH2A(10 milliohm). Here you can find the detailed overview, which KOA parts are offered as alternative.
KOA will stop the production LA73 series:
KOA Europe regrets to announce the obsolescence of Koa´s “Linear Positive Temperature Coefficient Thick Film Chip Resister “LA73”series”
Please observe that the following products are discontinued according to the dates and terms represented in this obsolescence notice.
This month KOA Europe introduces:
New High Precision Thick Film Chip Resistors from KOA – 25ppm, 0.1%, High Reliability. Here you can download the product information. Here you can download the datasheet.
This month KOA Europe introduces:
Wide Terminal and Pulse Proof Chip Resistors for Automotive from KOA. Here you can download the product information. Here you can download the: datasheet.
Notification for “Thick Film Chip Networks” of CN-series:
Please note that all KOA datasheets of our “Thick Film Chip Networks” CN-series (pages 130 to 143) are now clearly marked with the notification “End of Life – Sept 2020”
This is valid for the following series:
CN, CN-A, CN-K, CN-RT, CN-KRT, CND, CND-K, CNB
Here you can download the datasheet of CN.
This month KOA Europe introduces:
High Voltage Chip Resistors for Automotive from KOA. Here you can download the product information. Here you can download the: datasheet.
PCN 2019 D MOS2, MOS3 Series Material Marker Change:
To meet the expectations of our customers, we are continuously improving our products and manufacturing capabilities. Today we would like to inform you about a PCN for “Material Maker Change” for MOS2 and MOS3 series (Fixed Metal Film Resistors).
Further details can be found here.
SHUNT – Technical Notes from KOA:
KOA has uploaded some very interesting technical notes about shunt resistors.
- Influence of parasitic inductance in the current sensing resistors
- Voltage measurement using current sensing resistors
- Parallel mounting of current sensing resistors
You can download these documents here.
KOA will stop the production / discontinue WF** network series:
Koa Europe regrets to announce the obsolescence of Koa´s “WF**” (Thermal fuse built-in resistor) series. Please observe that the following products are discontinued according to the dates and terms represented in this obsolence notice.
You can download here the “Production Obsolete Notification Form“.
Increased power ratings for RS73 and RS73_RT components:
KOA Corporation has successfully tested and approved the RS73 and RS73_RT parts in the size 1J (0603) and now specifies higher ratings.
=> OLD: 0.125W @ +70°C ambient (+125°C terminal part temperature), 75V Max, Working Voltage
=> NEW: 0.2W @ +85°C ambient (+125°C terminal part temperature), 100V Max, Working Voltage
KOA will stop the production / discontinue CN* network series:
Due to the aging of our production equipment and the demand trend of our products, we have decided that it is difficult to introduce new resources, that is the reason why we will discontinue the production of CN* series, CN-A series, CN-K series, CN-RT series,
CN-KRT series, CND series, CND-K series and CNB series. You can download here the “Production Obsolete Notification Form“.
Thin Film Chip Network for automotive:
For automotive and other critical applications KOA recommend to use our RTY-series (also RTX, RNX).
Advantages of these series are:
– standard package of semiconductors (SOT-23)
– high mounting reliability
– in case of thermal shock, the lead terminals ease the mechanical stress.
Datasheet can be download here.
Updated product selection guide leaflet is available:
KOA Europe has updated the Product Selection Guide leaflet. It shows our main product portfolio with short product descriptions and it’s key characteristics. New parts are especially marked in red. You can download here the “KOA Europe Selection Guide“.
This month KOA Europe introduces:
Wide Terminal Chip Resistors from KOA in 3 New Sizes. You can download the product information as PDF file here and the datasheet as PDF here.
KOA Corporation will discontinue the production of the following product series:
BR27A – Date of Discontinuance: 2019, May 31; Last time buy date: 2018, November 30
BR36S – Date of Discontinuance: 2019, May 31; Last time buy date: 2018, November 30
LPC9040 – Date of Discontinuance: 2019, July 31; Last time buy date: 2019, January 31
LPC10065 – Date of Discontinuance: 2019, July 31; Last time buy date: 2019, January 31
LPC12065 – Date of Discontinuance: 2019, July 31; Last time buy date: 2019, January 31.
Updated Automotive Selection Guide leaflet is available:
KOA Japan has updated the content of the Automotive Selection Guide leaflet. You can download it here.
Updated shunt product selection guide leaflet is available:
KOA Japan has updated the content of the shunt product selection guide leaflet. You can download here the Current Sense Product Selection Guide.
Understanding current component shortages – and how to survive them:
Managing 700,000 parts across 27,000 suppliers at any given time provides us with unique insight into key commodity trends, strategies and shortages. Therefore, it goes without saying that it’s been an interesting few years in direct procurement.…
KOA has received the new IATF certificates:
KOA General Affair Center has just updated the information also on the KOA website.
You can find the registration numbers under the following link: http://www.koaglobal.com/corporate/iso.
PCN for “Combine marking code method”:
To meet the expectations of our customers, we are continuously improving our products and manufacturing capabilities. Today we would like to inform you about a PCN for “Combine marking code method”. Further details can be found here.
New Thick Film Chip Resistors for High Temperautre is available:
KOA’s new HRK73-series is designed for high temperature and suitable for conductive glue mounting. High reliability and high stability is achieved by the triple-layer structure of electrode. You can download here the datasheet.
New High Precision Thick Film Chip Resistors is available:
KOA’s new RS73-series is designed for high precision and high reliability applications by using thick film technology. You can download here the product information and the HSAN2P datasheet.
KOA Europe introduces:
1000V 10ppm – New High Precision High Voltage Divider from KOA. TThe new HVD – series from KOA is ideal for dividing of high voltages in EV and HEV applications. You can download here the product information and the HSAN2P datasheet.
KOA Europe introduces:
600A – New Large Current High Power Shunt from KOA. The new HS series from KOA is ideal for sensing currents up to 600 A. You can download here the product information and the HSAN2P datasheet.
KOA Europe introduces:
Pulse and Surge Proof Chip Resistors from KOA. You can download here the product information.
KOA Europe introduces:
Platinum Thin Film Temperature Sensors from KOA. You can download here the product information.
KOA Europe introduces:
Platinum Thin Film Temperature Sensors from KOA. You can download here the product information and the datasheet.
Search Distributor Inventory:
From now on you can use our part search utility to check real-time stock.
KOA Europe introduces:
New High Current Power Shunt Resistors for Automotive from KOA. For high current applications, KOA has now expanded its existing Power Shunt series by adding the PSJ2 and the PSL2. For more information you can download the product information and datasheet.
Add plating of RN731ET series electrodes to our in-house plating process
To meet the expectations of our customers, we are continuously improving our products and manufacturing capabilities. Due to an increase in RN73 production, additional plating capacity will be required. Since all other sizes of the RN73 series are already plated in-house, we will add in-house plating of the RN731ET to increase capacity. Effective date of the change is December 29. 2017.
Notice Regarding Acquisition of Equity Interests of VIA electronic GmbH by KOA Europe GmbH
KOA Corporation, through KOA Europe GmbH (KEG), which is a 100% subsidiary company of KOA Corporation, has passed a resolution to acquire an equity interest of VIA electronic GmbH (VIA). For more information click here.