or Bobbins which are in use today are made of impregnated paper
materials, Laminated materials, Compression moulded types in
thermosetting materials, or injection moulded types in thermoplastic
accounts for a large part in the manufacture of bobbins for
ferrite cored transformers and small transformer with laminations.
The below table gives properties of the material suitable for
bobbins [Quote-IS: 11455 (Part1/Sec3)1985].
Y (90 0C)
A (105 0C)
paper, leatheroid, polypropylene, polyacetal, nylon.
E (120 0C)
based laminates, Nylon66
B (130 0C)
asbestor Phenolic & melamine resin bonded glass
fabric, laminates, glass filled polycarbonate
F (155 0C)
bonded glass fabric laminates, glass filled Nylon6
H (180 0C)
bonded glass fabric laminates, glass filled Nylon66
& polyamide. Polyethylene terephthalate and polybutylene
application areas of Coil formers are Inverter transformer,
Current transformer, Fly back transformer, Driver transformer,
Pulse transformer, Line filter choke, Noise suppressor, Beam
deflection systems etc.
Power inlet sockets of 250V, 10Amps Capacity are available in
UL and non UL approved plastic materials. The terminals are
made of solid brass, coates with copper flash and tin plated
as per our standard (PRDN/WI/11).
We can offer
Round or Square tags depending upon the products already developed.
The base materials of all the terminals are Phosphorous Bronze,
coated with copper flash and tin-plated as per our standard
to Solder :-
the bobbins conform to various customer specifications only
and are not our own design.
of the bobbins can be offered in both glass filled Nylon6,
Nylon66 and Polyester, both FR & Non FR grades as per
subject to change due to continuous development.
are plated for good solderability with copper flash and Tin
as per our standard. (PRDN/WI/11).
component is available off the shelf. Requirements may be ordered
by an enquiry, followed by our quote. Supplies will be made
against a mutually agreed schedule. While enquiring, please
quote our part number followed by the component name. OR Component
name and Serial No.
requirement can be developed on the basis of your specifications.
A drawing or sample will be required. To develop/quote/minimum
lead time required will be 3-6 weeks depending upon the type
of the component. We can also manufacture any other plastic
engineering components other than coil formers.