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Introduction
Mounting Insulators for components have
been the mainstay of a product line that can
be considered as basic hardware designed to
assist in the fabrication of more reliable assemblies.
Our Mounting Insulators have been designed
to ensure product reliability by:
1. uniformly spacing and insulating the component from the printed circuitry.
2. providing clearance to allow solder-fillet formation on double-sided printed circuit boards.
3. permitting flush cleaning of solder-flux residues.
4. allowing inspection of solder-fillets.
5. permitting improved conversion air cooling.
6. helping prevent moisture entrapment due to condensation.
7. reducing the effect of shock and vibration by providing a secure, permanent mounting base.
8. protecting the component from overheating during soldering by increasing the effective lead length between the component and the printed circuit board.
Mounting
Insulators
Our extensive line of insulators, though designed specifically for capacitors, diodes, resistors, DIPS, relays, and transistors, can also be used to mount other components such as trim potentiometers, LEDS, integrated circuits, etc.
Generally all of the products on this site are
molded using high temperature Liquid
Crystal Polymer (Vectra®), however,
there are several parts that are molded of Diallyl
Phthalate. The part numbers in this
site must be suffixed 'D' or 'V' in order to
be complete. The letter is in reference to the
material from which the parts are molded; i.e.
D=Diallyl Phthalate or V=Vectra®.
Diallyl Phthalate Properties
Diallyl Phthalate is a flame-resistant glass-fibre filled material conforming to ASTM D5948, Type SDG-F.
Mechanical
Compressive Strength. . . . . . . . . . . . . 25,000 psi
Flexural Strength. . . . . . . . . . . . . . . . .11,000 psi
Flexural Modulus. . . . . . . . . . . . . . . . .1.4 x 106 psi
Izod Impact Strength. . . . . . . . . . . . . . 0.85 ft. lb./in.
Tensile Strength. . . . . . . . . . . . . . . . . 8,500 psi
Heat Distortion. . . . . . . . . . . . . . . . . . 365°F (185°C)
Heat Resistance, Continuous. . . . . . . .400-450°F (204-232°C)
Thermal Expansion
Linear Coefficient per Degree
Centigrade (25° to 70°C). . . . . . . . . . . 34 x 10-6
Thermal Conductivity,
Cal/sec/cm2/cm/°C. . . . . . . . . . . . . . .6.9 x 10-4
Specific Gravity. . . . . . . . . . . . . . . . . .1.84 to 1.91
Water Absorption,
48 hrs @ 50°C. . . . . . . . . . . . . . . . . . . 0.35%
Flame Resistance,
Heated coil. . . . . . . . . . . . . . . . . . . . . (FTMS-406,2023.2)
Ignition time. . . . . . . . . . . . . . . . . . . . .>90 seconds
Burning time. . . . . . . . . . . . . . . . . . . . <90 seconds
UL Listing. . . . . . . . . . . . . . . . . . . . . . 94 V0
Electrical
Arc Resistance. . . . . . . . . . . . . . . . . . .130 sec.
Dielectric Strength . . . . . . . . . . . . . . . . 350V/MIL
Dielectric Constant. . . . . . . . . . . . . . . . 3.8 @ 1 MHz
Dissipation Factor. . . . . . . . . . . . . . . . . 0.012 @ 1MHz
Volume Resistance,
Megohms. . . . . . . . . . . . . . . . . . . . . . . as is 107 plus
30 days @ 100% R.H.
@ 70°C. . . . . . . . . . . . . . . . . . . . . . . . .40,000
Surface Resistance,
Megohms. . . . . . . . . . . . . . . . . . . . . . . as is 107 plus
30 days @ 100% R.H.
@ 70°C. . . . . . . . . . . . . . . . . . . . . . . . .150,000
LCP
(Vectra®) Properties
High temperature Liquid Crystal Polymer (LCP)
plastic exhibits excellent mechanical strength
and dimensional stability, high dielectric strength
and low coefficient of thermal expansion. Provided
in a standard off-white color or black, it can be used
continuously at 280°C (536°F), has a
melt point of 335°C (635°F), is inherently
flame retardant and meets the flammability requirements
of UL 94V-O.
Mechanical Properties
Compressive Strength. . . . . . . . . . . . . . . . 20,000 psi
Flexural Strength. . . . . . . . . . . . . . . . . . . . 32,000 psi
Flexural Modulus . . . . . . . . . . . . . . . . . . . 2.1 x 106 psi
Izod Impact Strength . . . . . . . . . . . . . . . . 3.9 ft. lb./in.
Shear Strength . . . . . . . . . . . . . . . . . . . . . 17,800 psi
Tensile Strength . . . . . . . . . . . . . . . . . . . . 30,000 psi
Elongation.. . . . . . . . . . . . . . . . . . . . . . . . 1.7%
Heat Distortion. . . . . . . . . . . . . . . . . . . . . 536°F (280°C) @ 264 psi
Coefficient of Linear Thermal Expansion
-50°C to 200°C, Flow direction . . . . . . . . 1 cm/cm°C x10-6
Specific Gravity . . . . . . . . . . . . . . . . . . . . 1.62
Water Absorption, to equilibrium. . . . . . . . 0.04%
Flammability. . . . . . . . . . . . . . . . . . . . . . . UL94 V-0 @ 0.031 thick
Electrical Properties
Arc Resistance . . . . . . . . . . . . . . . . . . . . . 130 sec.
Dielectric Strength Short Term. . . . . . . . . . 1050V/mil (1/6 in.)
Dielectric Constant . . . . . . . . . . . . . . . . . . 3.7 @ 1 MHz
Dissipation Factor. . . . . . . . . . . . . . . . . . . 0.03 @ 1MHz
Volume Resistance . . . . . . . . . . . . . . . . . . 1014 (ohm/cm)
Vectra® is a registered
trademark of Hoechst Celanese Corporation.
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