Standard Products Guide

About Standard Products

The following standard products are available.
We provide these items at low cost, with quick delivery and reliable quality.

For customers who wish to place an order, please check the “Order standard products” box for “Type of Inquiry” on the Contact Form, enter the model name and quantity in the “Inquiry Details” field, and send it to us.
After confirming the details, we will send you an official estimate.
Products will be shipped once receipt of payment has been confirmed.

Features of Standard Products

Superior electrical characteristics
Superior functional characteristics
High heat resistance
Long service life
Low water absorbency
Low out-gassing

Bead Insulators for High Voltage Circuit Wiring

Our fine ceramic bead insulators offer excellent flexibility of form and high consistency through precision machining of the curved surfaces, and are used in all types of electrical circuits, playing an important role in various fields over many years.
As for the electrical characteristics, etc., they have been designed to be suitable for any requirements as insulators in circuits requiring high voltage wiring or high-frequency, high-voltage wiring ranging from low-frequency to radio frequency bands.

Order Sheet ・・・Discontinued when stock runs out.

Type Name	Dimensions/Tolerance							Material	Unit Price (sales tax not included) 1,000 units/lot
Type Name	φA (Outer Diameter)		φB (Inner Diameter)		C (Height)		(D)	Material	Unit Price (sales tax not included) 1,000 units/lot
A-1	2.5	±0.2	1.2	±0.15	5.0	±0.2	(1.0)	Steatite	¥18
A-2	5.0	±0.2	2.0	±0.15	5.0	±0.2	(1.6)	Alumina	¥26
A-3	6.6	±0.3	3.8	±0.2	6.4	±0.3	(2.0)	Steatite	¥28
A-4	11.0	±0.4	5.0	±0.2	11.0	±0.4	(4.0)	Steatite	¥26
A-5	2.5	±0.2	1.2	±0.15	2.5	±0.2	(1.0)	Alumina	¥26
A-6	6.6	±0.3	3.8	±0.2	6.4	±0.3	(2.0)	Alumina	¥28
A-7	2.0	±0.2	0.75	±0.15	2.5	±0.2	(0.4)	Alumina	¥22
A-8	5.0	±0.2	2.5	+0.30	5.0	±0.2	(1.6)	Alumina	¥27

We request a minimum order quantity of 1,000 units.
We request that orders be placed in increments of 1,000 unit lots.
There is an additional packaging and shipping fee (usually ¥1,500).
For standard products, the packaging and shipping fee will be waived for single orders of greater than ¥30,000. (The fee will apply to orders of exactly ¥30,000.)

Spacers

These ceramic spacers offer superior insulation and heat resistance.
They are low out-gassing, so they are widely used as components in analytical instruments such as ion sources for materials analysis equipment, as well as in vacuum equipment.

Order Sheet ・・・Discontinued when stock runs out.・・・End of production (can be made to order)

Type Name	Dimensions/Tolerance						Material	Unit Price (sales tax not included)	Order Lot
Type Name	φA		φB		C		Material	Unit Price (sales tax not included)	Order Lot
BA-1	5.0	±0.1	2.2	±0.15	2.0	±0.v	Alumina	¥480	10 units/1 lot
								¥430	20 units/2 lot
								¥390	30 units/3 lot
								¥350	40 units/4 lot
								¥320	50 units/5 lots or more
BA-2	5.0	±0.2	3.3	＋0.2 -0.05	5.0	±0.1	Alumina	¥540	10 units/1 lot
								¥490	20 units/2 lot
								¥440	30 units/3 lot
								¥400	40 units/4 lot
								¥360	50 units/5 lots or more
BA-3	7.0	±0.2	5.1	＋0.1 -0.05	2.5	±0.1	Alumina	¥600	10 units/1 lot
								¥540	20 units/2 lot
								¥490	30 units/3 lot
								¥440	40 units/4 lot
								¥400	50 units/5 lots or more
BA-4	8.3	±0.3	3.6	±0.2	1.0	±0.1	Alumina	¥680	10 units/1 lot
								¥620	20 units/2 lot
								¥560	30 units/3 lot
								¥510	40 units/4 lot
								¥460	50 units/5 lots or more
BA-5	16.0	±0.3	6.0	±0.3	3.0	±0.1	Alumina	¥720	10 units/1 lot
								¥650	20 units/2 lot
								¥600	30 units/3 lot
								¥550	40 units/4 lot
								¥500	50 units/5 lots or more
BS-1	4.0	±0.15	2.0	＋0.15 -0	1.4	±0.15	Steatite	¥420	10 units/1 lot
								¥400	20 units/2 lot
								¥380	30 units/3 lot
								¥360	40 units/4 lot
								¥330	50 units/5 lots or more
BS-2	5.5	±0.15	2.0	＋0.2 -0.01	1.0	±0.15	Steatite	Inquiry required	Can be made to order Minimum order quantity：10 units/Lot Minimum order unit：10 units Extra shipping fee less than ¥30,000
BS-3	12.0	±0.3	3.3	＋0.2 -0.05	5.0	±0.1	Steatite	Inquiry required	Can be made to order Minimum order quantity：10 units/Lot Minimum order unit：10 units Extra shipping fee less than ¥30,000

We request a minimum order quantity of 10 units.
We request that orders be placed in increments of 10 units.
There is an additional packaging and shipping fee (usually ¥1,500).
For standard products, the packaging and shipping fee will be waived for single orders of greater than ¥30,000. (The fee will apply to orders of exactly ¥30,000.)

Bushings

These products have versatile applications, such as insulators for spot faces.
They are low out-gassing, so they are widely used as components in analytical instruments such as ion sources for materials analysis equipment, as well as in vacuum equipment.

Order Sheet ・・・Discontinued when stock runs out・・・End of production (can be made to order)

Type Name	Dimensions/Tolerance												Material	Unit Price (sales tax not included)	Order Lot
Type Name	φA		φB		φC		D		E		F		Material	Unit Price (sales tax not included)	Order Lot
CA-1	4.9	±0.1	3.0	±0.2	2.2	±0.2	2.0	±0.2	(0.5)		2.5	±0.2	Alumina
														¥660	10 units/1 lot
														¥600	20 units/2 lot
														¥540	30 units/3 lot
														¥490	40 units/4 lot
														¥440	50 units/5 lots or more
CA-2	7.0	±0.2	4.0	+0.05 -0.1	2.1	+0.15 -0	2.0	±0.2	(1.5)		3.5	±0.2	Alumina
														¥720	10 units/1 lot
														¥650	20 units/2 lot
														¥600	30 units/3 lot
														¥550	40 units/4 lot
														¥500	50 units/5 lots or more
CA-3	7.0	±0.3	4.9	+0 -0.25	3.1	+0.25 -0	2.0	±0.2	1.0	±0.2	(3.0)		Alumina
														¥720	10 units/1 lot
														¥650	20 units/2 lot
														¥600	30 units/3 lot
														¥550	40 units/4 lot
														¥500	50 units/5 lots or more
CA-4	8.6	±0.3	5.8	+0.05 -0.15	3.3	±0.2	2.5	±0.1	(2.3)		4.8	±0.2	Alumina
														¥920	10 units/1 lot
														¥850	20 units/2 lot
														¥800	30 units/3 lot
														¥770	40 units/4 lot
														¥700	50 units/5 lots or more
CA-5	9.0	±0.3	6.0	±0.15	3.2	±0.15	3.0	±0.2	(3.0)		6.0	±0.3	Alumina
														¥960	10 units/1 lot
														¥890	20 units/2 lot
														¥830	30 units/3 lot
														¥790	40 units/4 lot
														¥740	50 units/5 lots or more
CA-6	10.0	±0.3	7.0	±0.15	4.5	±0.2	3.6	±0.2	0.6	±0.15	(4.2)		Alumina
														¥1,080	10 units/1 lot
														¥1,000	20 units/2 lot
														¥940	30 units/3 lot
														¥910	40 units/4 lot
														¥860	50 units/5 lots or more
CS-1	8.0	±0.3	6.0	±0.3	3.4	±0.2	3.0	±0.2	(0.5)		3.5	±0.2	Steatite
														¥640	10 units/1 lot
														¥580	20 units/2 lot
														¥530	30 units/3 lot
														¥480	40 units/4 lot
														¥440	50 units/5 lots or more
CS-2	10.0	±0.3	7.0	±0.3	4.5	±0.2	4.0	±0.2	(0.6)		4.6	±0.2	Steatite
														¥740	10 units/1 lot
														¥670	20 units/2 lot
														¥610	310 units/3 lot
														¥550	40 units/4 lot
														¥500	50 units/5 lots or more
CS-3	12.0	±0.4	5.0	-0.05	3.3	±0.2	4.0	±0.2	(2.0)		6.0	±0.3	Steatite	Inquiry required	Can be made to order Minimum order quantity：10 units/Lot Minimum order unit：10 units Extra shipping fee less than ¥30,000
CS-4	12.0	±0.3	6.0	-0.05	3.3	+0.2 -0	5.0	±0.1	0.5	+0.15 -0.1	(5.5)		Steatite	Inquiry required	Can be made to order Minimum order quantity：10 units/Lot Minimum order unit：10 units Extra shipping fee less than ¥30,000
CS-5	15.0	±0.4	6.0	-0.05	3.3	+0.2 -0.1	5.0	±0.2	(2.0)		7.0	±0.3	Steatite	Inquiry required	Can be made to order Minimum order quantity：10 units/Lot Minimum order unit：10 units Extra shipping fee less than ¥30,000

We request a minimum order quantity of 10 units.
We request that orders be placed in increments of 10 units.
There is an additional packaging and shipping fee (usually ¥1,500).
For standard products, the packaging and shipping fee will be waived for single orders of greater than ¥30,000. (The fee will apply to orders of exactly ¥30,000.)

Collars and Bases

“There are a wide variety of applications for these products, such as separators between electrodes.
They are low out-gassing, so they are widely used as components in analytical instruments such as ion sources for materials analysis equipment, as well as in vacuum equipment.”

Order Sheet

Item Name	Type Name	Dimensions/Tolerance						Material	Unit Price (sales tax not included)	Order Lot
Item Name	Type Name	φA		φB		φC		Material	Unit Price (sales tax not included)	Order Lot
Collar	DA-1	6.2	±0.15	4.2	±0.15	2.0	±0.1	Alumina
									¥500	10 units/1 lot
									¥480	20 units/2 lot
									¥460	30 units/3 lot
									¥440	40 units/4 lot
									¥420	50 units/5 lots or more
Collar	DA-2	6.2	±0.15	4.2	±0.15	3.0	±0.1	Alumina
									¥600	10 units/1 lot
									¥570	20 units/2 lot
									¥550	30 units/3 lot
									¥530	40 units/4 lot
									¥510	50 units/5 lots or more
Base	EA-1	7.0	±0.2	5.1	+0.1 -0.05	5.5	±0.1	Alumina
									¥730	10 units/1 lot
									¥700	20 units/2 lot
									¥670	30 units/3 lot
									¥640	40 units/4 lot
									¥610	50 units/5 lots or more
Base	EA-2	7.0	±0.2	5.1	+0.1 -0.05	9.5	±0.1	Alumina
									¥780	10 units/1 lot
									¥740	20 units/1 lot
									¥710	30 units/1 lot
									¥680	40 units/4 lot
									¥650	50 units/5 lots or more

We request a minimum order quantity of 10 units.
We request that orders be placed in increments of 10 units.
There is an additional packaging and shipping fee (usually ¥1,500).
For standard products, the packaging and shipping fee will be waived for single orders of greater than ¥30,000. (The fee will apply to orders of exactly ¥30,000.)

High Voltage Circuit Lead Wire with Insulators

This product is a lead wire with standard bead insulators attached.
We can handle a wide variety of types in addition to the example products to meet your technical specifications, so please contact us if we can help you.
Our products are used by many vacuum equipment manufacturers. (Alumina is recommended for use in a vacuum.)

We can provide an estimate for lead wires with resistors for use in high voltage circuits custom made for your company.

Please check the compatibility chart below before requesting an estimate via the contact form, and clearly state the model number and quantity.
Estimated delivery time is 1-2 weeks. (Additional consultation may be required depending on your requirements)

Lead wire with crimp contacts

Lead wire without crimp contacts

About the Format

When requesting an estimate, please use the following format and include the quantity required.

Example 1：NT03-300-A2-R1-R2
(300 mm lead wire combining 0.35 sq. stranded nickel wire with A2 insulators, R1.25-3 and R1.25-4 crimp contacts)

Example 2：NT03-300-A2-0-0
(Lead wire from Example 1 without crimp contacts)

Compatibility Chart

Compatibility Chart

Lead Wire Code	Compatible Components
	Insulators		Crimp contacts
	Recommended	Production Capability	Crimp contacts
NT03 (Nickel, stranded wire)	A2(Alumina)	A3(Steatite) A6(Alumina) A8(Alumina)	R1(R1.25-3) R2(R1.25-4)
NT10 (Nickel, stranded wire)	A2(Alumina)	A3(Steatite) A6(Alumina) A8(Alumina)	R3(R2-4) R4(R2-5) R5(R2-6)
NT20 (Nickel, stranded wire)	A8(Alumina)	A2(Alumina) A3(Steatite) A6(Alumina)	R3(R2-4) R4(R2-5) R5(R2-6)
NT25 (Nickel, stranded wire)	A3(Steatite) A6(Alumina)	–	R6(R5.5-4) R7(R5.5-5) R8(R5.5-6) *Internal compatibility standard
CS20 (Copper, solid wire)	A8(Alumina)	A3(Steatite) A6(Alumina)	R6(R5.5-4) R7(R5.5-5) R8(R5.5-6)

Lead Wire Type

“The allowable current value is a reference value calculated for use in open atmosphere.
Please use a sufficiently safe current value during use, taking into account the usage conditions.”

Code	Wire Material	Solid Wire Stranded Wire	Average Value		Specifications			Expected Performance
Code	Wire Material	Solid Wire Stranded Wire	Designation	Wire Diameter (mm)	Solid Wire Diameter (mm)	Primary Twists	Secondary Twists	Allowable Current (A)
NT03	Nickel	Stranded Wire	0.35sq	1.0	0.18	7	2	5
NT10	Nickel	Stranded Wire	1.0sq	1.6	0.18	14	3	10
NT20	Nickel	Stranded Wire	2.0sq	2.1	0.18	11×6+12×1		14
NT25	Nickel	Stranded Wire	2.5sq	2.3	0.18	14	7	20
CS20	Copper	Solid Wire	2mm	2.0	2.0	1	1	35

sq: unit for the cross-sectional area of stranded wire.
Specifications: wire of the “solid wire diameter” twisted by the number of “primary twists” is twisted by the number of “secondary twists.”

Insulators

“Withstand voltage is the reference value for the dielectric strength of the lead wire and outer surface of the bead resistors in atmosphere.
It varies significantly depending on usage conditions, so please give adequate consideration to safety during use.
Alumina is recommended for use in a vacuum.
99.5% Alumina is more expensive than 93% Alumina.”

Code	Insulator Type Name	Dimensions (Average Value: mm)			Material	Expected Performance
Code	Insulator Type Name	φA (Outer Diameter)	φB (Inner Diameter)	C (Length)	Material	Withstand Voltage (kV)
A2	A-2	5.0	2.0	5.0	93% Alumina	4
A3	A-3	6.6	3.8	6.4	Steatite	–
A6	A-6	6.6	3.8	6.4	93% Alumina	4
A8	A-8	5.0	2.5	5.0	93% Alumina	3.5

High Purity Products
We can also manufacture high purity versions (99.5% Alumina) of A2, and A6.
High purity products are 93% alumina, and are both more expensive and take longer to deliver compared to steatite.
If you desire high purity, please contact us separately.

Crimp Contacts

Round Terminal (R Type): Nickel
Brazed seam
Maximum Usable Temperature: 400℃ (We do not guarantee performance.)
Depending on inventory when you place your order, the dimensions may vary slightly from those on the website.

Code	Model Number	Dimensions (mm)						Range of Compatible Electrical Wires
Code	Model Number	φd₂	B	L	φd₁	φD	t	Solid Wire (φ)	Stranded Wire (sq)
R1	R1.25-3	3.2	5.5	11.5	1.7	3.4	0.8	0.56〜1.44	0.25〜1.65
R2	R1.25-4	4.3	8.0	15.8	1.7	3.4	0.8	0.56〜1.44	0.25〜1.65
R3	R2-4	4.3	8.5	16.8	2.3	4.1	0.8	1.14〜1.82	1.04〜2.63
R4	R2-5	5.3	9.5	16.8	2.3	4.1	0.8
R5	R2-6	6.4	12.0	21.8	2.3	4.1	0.8
R6	R5.5-4	4.3	9.5	19.8	3.4	5.6	1.0	1.82〜2.89	2.63〜6.64
R7	R5.5-5	5.3	9.5	19.8	3.4	5.6	1.0
R8	R5.5-6	6.4	12.0	25.8	3.4	5.6	1.0
0	–	Without crimp contacts

Product Guide Ceramics Production Process