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Standard Products Guide

About Standard Products

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
Type Name Dimensions/Tolerance Material Unit Price
(sales tax not included)
1,000 units/lot
φA
(Outer Diameter)
φB
(Inner Diameter)
C
(Height)
(D)
A-1 2.5 ±0.2 1.2 ±0.15 5.0 ±0.2 (1.0) Steatite ¥14
A-2 5.0 ±0.2 2.0 ±0.15 5.0 ±0.2 (1.6) Alumina ¥23
A-3 6.6 ±0.3 3.8 ±0.2 6.4 ±0.3 (2.0) Steatite ¥23
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 ¥23
A-6 6.6 ±0.3 3.8 ±0.2 6.4 ±0.3 (2.0) Alumina ¥23
A-7 2.0 ±0.2 0.75 ±0.15 2.5 ±0.2 (0.4) Alumina ¥17
A-8 5.0 ±0.2 2.5 +0.30 5.0 ±0.2 (1.6) Alumina ¥23
  • 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.
Type Name Dimensions/Tolerance Material Unit Price
(sales tax not included)
Order Lot
φA
φB
C
BA-1 5.0 ±0.1 2.2 ±0.15 2.0 ±0.v Alumina ¥400 10 units/1 lot
¥300 20 units/2 lot
¥270 30 units/3 lot
¥250 40 units/4 lot
¥220 50 units/5 lots or more
BA-2 5.0 ±0.2 3.3 +0.2
-0.05
5.0 ±0.1 Alumina ¥450 10 units/1 lot
¥350 20 units/2 lot
¥320 30 units/3 lot
¥300 40 units/4 lot
¥250 50 units/5 lots or more
BA-3 7.0 ±0.2 5.1 +0.1
-0.05
2.5 ±0.1 Alumina ¥500 10 units/1 lot
¥400 20 units/2 lot
¥370 30 units/3 lot
¥350 40 units/4 lot
¥300 50 units/5 lots or more
BA-4 8.3 ±0.3 3.6 ±0.2 1.0 ±0.1 Alumina ¥560 10 units/1 lot
¥460 20 units/2 lot
¥430 30 units/3 lot
¥410 40 units/4 lot
¥360 50 units/5 lots or more
BA-5 16.0 ±0.3 6.0 ±0.3 3.0 ±0.1 Alumina ¥600 10 units/1 lot
¥500 20 units/2 lot
¥470 30 units/3 lot
¥450 40 units/4 lot
¥400 50 units/5 lots or more
BS-1 4.0 ±0.15 2.0 +0.15
-0
1.4 ±0.15 Steatite ¥320 10 units/1 lot
¥220 20 units/2 lot
¥190 30 units/3 lot
¥170 40 units/4 lot
¥120 50 units/5 lots or more
BS-2 5.5 ±0.15 2.0 +0.2
-0.01
1.0 ±0.15 Steatite ¥350 10 units/1 lot
¥250 20 units/2 lot
¥220 30 units/3 lot
¥200 40 units/4 lot
¥150 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.)

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
Type Name Dimensions/Tolerance Material Unit Price
(sales tax not included)
Order Lot
φA φB φC D E F
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
¥550 10 units/1 lot
¥450 20 units/2 lot
¥420 30 units/3 lot
¥400 40 units/4 lot
¥350 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
¥600 10 units/1 lot
¥500 20 units/2 lot
¥470 30 units/3 lot
¥450 40 units/4 lot
¥400 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
¥600 10 units/1 lot
¥500 10 units/2 lot
¥470 30 units/3 lot
¥450 40 units/4 lot
¥400 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
¥760 10 units/1 lot
¥660 20 units/2 lot
¥630 30 units/3 lot
¥610 40 units/4 lot
¥560 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
¥800 10 units/1 lot
¥700 20 units/2 lot
¥670 30 units/3 lot
¥650 40 units/4 lot
¥600 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
¥900 10 units/1 lot
¥800 20 units/2 lot
¥770 30 units/3 lot
¥750 40 units/4 lot
¥700 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
¥500 10 units/1 lot
¥400 20 units/2 lot
¥370 30 units/3 lot
¥350 40 units/4 lot
¥300 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
¥580 10 units/1 lot
¥480 20 units/2 lot
¥450 310 units/3 lot
¥430 40 units/4 lot
¥380 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
¥600 10 units/1 lot
¥500 20 units/2 lot
¥470 30 units/3 lot
¥450 40 units/4 lot
¥400 50 units/5 lots or more
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
¥650 10 units/1 lot
¥550 20 units/2 lot
¥520 30 units/3 lot
¥500 40 units/4 lot
¥450 50 units/5 lots or more
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
¥650 10 units/1 lot
¥550 20 units/2 lot
¥520 30 units/3 lot
¥500 40 units/4 lot
¥450 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.)

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
φA φB C
Collar DA-1 6.2 ±0.15 4.2 ±0.15 2.0 ±0.1 Alumina
¥400 10 units/1 lot
¥300 20 units/2 lot
¥270 30 units/3 lot
¥250 40 units/4 lot
¥220 50 units/5 lots or more
Collar DA-2 6.2 ±0.15 4.2 ±0.15 3.0 ±0.1 Alumina
¥480 10 units/1 lot
¥380 20 units/2 lot
¥350 30 units/3 lot
¥330 40 units/4 lot
¥280 50 units/5 lots or more
Base EA-1 7.0 ±0.2 5.1 +0.1
-0.05
5.5 ±0.1 Alumina
¥580 10 units/1 lot
¥480 20 units/2 lot
¥450 30 units/3 lot
¥430 40 units/4 lot
¥380 50 units/5 lots or more
Base EA-2 7.0 ±0.2 5.1 +0.1
-0.05
9.5 ±0.1 Alumina
¥620 10 units/1 lot
¥520 20 units/1 lot
¥490 30 units/1 lot
¥470 40 units/4 lot
¥420 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

図1

Lead wire without crimp contacts

図2

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
NT03
(Nickel, stranded wire)
A2(Alumina) A3(Steatite)
A4(Steatite)
A6(Alumina)
A8(Alumina)
R1(R1.25-3)
R2(R1.25-4)
NT10
(Nickel, stranded wire)
A2(Alumina) A3(Steatite)
A4(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)
A4(Steatite) R6(R5.5-4)
R7(R5.5-5)
R8(R5.5-6)
*Internal compatibility standard
CS20
(Copper, solid wire)
A8(Alumina) A3(Steatite)
A4(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
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
φA
(Outer Diameter)
φB
(Inner Diameter)
C
(Length)
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
A4 A-4 11.0 5.0 11.0 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, A4, 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
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
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