Head wires for diodes, rectifiers and similar
We manufacture precise
connecting wires for axial diodes, rectifiers
and other electrical components. Besides wire
sections with upset heads and double heads, we
produce pins with flanks of exacted tolerance
and canted middle sections which suppress torsion.
The dimensions and bending tolerances of our products
are confined to a very narrow range. We also supply
our head pins with galvanized surfaces. The head
wires are manufactured in quantities up to several
hundred million pieces. The preferred materials
for these types are ECu, OFCu, OFCu gal Sn, OFCu
gal Ag, copper-clad wire (CuFe 70/30) of diameters
between 0,5 — 2,0 mm.
Soldered terminal wires for electrical and electronic
Dr. Ing. F. Keller
GmbH has developed processes by which the head
region of a terminal wire is coated by spheroid
or drop-shaped solder. Complicated soldering techniques
or the application of solder points after silk
screen printing can therefore be dispensed with
when putting together complex circuits.
The prefered materials for these current wires
are Ag 99,9 or,
OFCu 3 gal Ag, with a diameter between 0,3 —
0,5 mm, and any length between 20 mm and 80 mm.
All conventional solders usually implemented in
semi-conductor technology can be used according
to the customer's wishes.
Precision pins for electronics, precision engineering,
optics and electromedicine.
In the course of
time, existing machines have been optimized and
spezialized pins have been developed in cooperation
with the customer. In many cases accuracy has
almost reached that of turned parts.
Various materials can be employed, especially,
NiFeCo, CuSn6, CuSn8, German silver, brass, Dumet
wire, mu metall, metal alloys, surface terminated
wires, diameter 0,3 — 2,0 mm.
The ends of the pins can be manufactured with
a defined bevel in order to facilitate easier
insertion of the bones into the circuit boards.