Planar contact with solder
View Patent ↗A method of fixing reflowable elements on electrical contacts. The method includes providing a strip having a number of electrical contacts, each contact including a contact body and a tail portion extending away from the contact body. The tail portions of the contacts are then disposed adjacent an elongate reflowable member. The elongate reflowable member is pushed onto the tail portions of the plurality of contacts. Subsequently, the elongate reflowable member is cut into a plurality of separate reflowable elements, each reflowable element corresponding to one of the tail portions. The electrical contacts with the reflowable element attached thereto are separated from the strip.
1. An electrical connector comprising:
a planar strip;
a plurality of contacts defined in the planar strip, each contact comprising:
a body portion; and
a tail portion extending from the body portion, the tail portion including a holding section disposed toward a free end of the tail portion; and
a continuous solder element partially enveloping the holding section of each contact,
wherein each holding section comprises:
a catch disposed toward a free end of the tail portion and a narrow connection section disposed between the catch and the body portion,
wherein the catch is wider than the narrow connection section.
2. The electrical connector of claim 1 , wherein the solder element, the tail portion, and the body portion each have a melting point, and wherein the melting point of the solder element is lower in temperature than the melting point of the body portion and the melting point of the tail portion.
3. The electrical connector of claim 1 , further comprising:
a tin plating that covers at least part of the tail portion.
4. The electrical connector of claim 1 , wherein the free end of the tail portion is a point, and wherein the tail portion narrows from the catch to the free end of the tail portion.
5. The electrical connector of claim 4 , wherein a portion of the tail portion from the catch to the free end of the tail portion forms an arrowhead shape.
6. The electrical connector of claim 1 , wherein each contact further comprises a spring element disposed between the body portion and the tail portion.
7. The electrical connector of claim 6 , wherein the spring element includes at least one bend.
8. The electrical connector of claim 1 , wherein the tail portion further includes a spring element disposed between the body portion and the free end of the tail portion.
9. The electrical connector of claim 8 , wherein the spring element includes at least one bend.
10. The electrical connector of claim 1 , wherein the holding sections are co-planar with one another and wherein:
the continuous solder element comprises a flux core defining an axis therethrough; and
the continuous solder element is disposed on each holding section such that the continuous solder element axis is oriented generally parallel to the plane of the holding sections.
11. The electrical connector of claim 1 , wherein:
each holding section is disposed within the continuous solder element.