KOA SPEER集团创立于1940年，总社位于日本长野县伊那市。KOA SPEER为全球主要芯片电阻厂。专业生产高质量、高信赖性被动组件。KOA SPEER产品涵盖电阻器，温度传感器、保险丝、压敏电阻、电感器和低温共烧陶瓷基板，广泛应用于工业、车载、医疗、通讯等。

As you search for surface mount passive components that will ensure the optimum performance of your circuit design, count on the broad line of products from KOA Speer. Our engineering teams are developing a wide range of new smaller sizes and integrated packages to accommodate higher clock speeds and product downsizing. Our world class manufacturing facilities are poised to ramp up with new designs, allowing us to take them to market with the shortest of lead times. And our sophisticated warehousing and distribution system ensures the availability of components when you need them.

KOA Corporation strives to be a world leader in the technology and operational systems of manufacturing. We design and/or modify most of our production equipment to maximize work flow, speed and accuracy. Our manufacturing programs meet the highest international standards for finished component quality with defect levels measured in parts per billion.

We have met our twin goals of continually improving efficiency and quality through a consistent, ongoing investment in technology and equipment. Among the advanced manufacturing processes we currently utilize are high speed laser trimming machines for determining resistance values, an internally developed sputtering technique for precisely controlling end termination thickness, and our photolithography process for applying the base termination to a substrate.