Low gas emission ceramics electrical insulation component "bushing"

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Ceramic standard product bushing

last updated：Jan 31, 2025

友玉園セラミックス

Official site

[RoHS Compliant] This is a ceramic bushing with excellent insulation and heat resistance. It is widely used as a component in analytical instruments and vacuum equipment.

As of January 2025, some product numbers have been discontinued. For the latest information, please refer to the standard products on our company website. ■□■Features■□■ ●Excellent electrical properties ●High heat resistance ●Low water absorption ●Outstanding mechanical properties ●Long lifespan ●Low gas emission ■□■In addition to the product examples, we can accommodate various shapes to match your technical specifications, so please feel free to contact us.■□■ □■□Please note.□■□ ●The minimum order quantity is "10 pieces." ●Order quantities must be in "units of 10 pieces." ●As of November 2019, CS-3, CS-4, and CS-5 have been discontinued.

Related Link - https://www.yugyokuen-ceramics.com/products/basic

Inquire About This Product

basic information

From the formulation of ceramic materials to assembly... We respond to the diverse needs of various industrial sectors with high-purity and high-precision fine ceramics products. Moreover, due to their excellent low gas emission properties, they fully demonstrate their characteristics even in special environments such as electronic analytical instruments equipped with high vacuum. Dimensions can accommodate everything from standard shapes to small, high-precision components for microelectronics circuits used in mobile devices. Our fine ceramics have been widely utilized across various fields for many years. ■□■ For more details, please download the PDF or feel free to contact us. ■□■

Price information

Prices vary depending on the quantity and lot. Orders below 30,000 yen (excluding tax) will incur an additional shipping fee of 1,500 yen.

Price range

Delivery Time

Please contact us for details

※If we have stock available, we will deliver within a few days. Please feel free to contact us first.

Applications/Examples of results

They are widely used as insulating components in general electronic measuring instruments, analytical devices, control equipment, and various parts and devices from high frequency to millimeter wave frequency bands.

Detailed information

This is a shape diagram of the bushing. Please refer to the lineup for dimensions by model number. The dimensions in parentheses are reference values.
It is a ceramic bushing. It can be used like a standard bushing. The photo shows the model number "CA-5."
The photo shows an assortment sample of our standard products. In addition to the bushings, it also includes bead insulators and spacers. These very small components are molded using a die.

Line up（8）

Model number	overview
CA-1	ΦA:4.9±0.1 ΦB:3.0±0.2 ΦC:2.2±0.2 D:2.0±0.2 E:(0.5) F:2.5±0.2 Material: Alumina
CA-2	ΦA:7.0±0.2 ΦB:4.0+0.05/-0.1 ΦC:2.1+0.15/0 D:2.0±0.2 E:(1.5) F:3.5±0.2 Material: Alumina
CA-3	ΦA:7.0±0.3 ΦB:4.9 0/-0.25 ΦC:3.1+0.25/0 D:2.0±0.2 E:1.0±0.2 F:(3.0) Material: Alumina
CA-4	ΦA:8.6±0.3 ΦB:5.8+0.05/-0.15 ΦC:3.3±0.2 D:2.5±0.1 E:(2.3) F:4.8±0.2 Material: Alumina
CA-5	ΦA:9.0±0.3 ΦB:6.0±0.15 ΦC:3.2±0.15 D:3.0±0.2 E:(3.0) F:6.0±0.3 Material: Alumina
CA-6	ΦA:10.0±0.3 ΦB:7.0±0.15 ΦC:4.5±0.2 D:3.6±0.2 E:0.6±0.15 F:(4.2) Material: Alumina
CS-1	ΦA:8.0±0.3 ΦB:6.0±0.3 ΦC:3.4±0.2 D:3.0±0.2 E:(0.5) F:3.5±0.2 Material: Steatite
CS-2	ΦA:10.0±0.3 ΦB:7.0±0.3 ΦC:4.5±0.2 D:4.0±0.2 E:(0.6) F:4.6±0.2 Material: Steatite