Over the past 10 years, 0.4x0.5 mm press-fit pin has become one of the most in-demand products in SM Contact portfolio. The company supplies around 100 million pins of this type per year. This small eye-of-the-needle (EON) terminal is in wide demand in the automotive industry, especially in lighting electronics, because it’s cost-effective and space-saving. It is designed to replace soldered parts on printed circuit boards (PCB) and connectors. Advantages of 0.4x0.5 mm press-fit pins: - qualified in accordance with IEC 60352-5, Press-in connections (report available on request); It proved to have required contact resistance (< 0.5 mΩ), no cracks, acceptable deformations and resistance to rapid temperature changes and climate sequences. - small size of the pin affects the price downwards; 0.4x0.5 mm Press-fit pin’s reduced cost is based on its manufacturing process. It is a drawn-wire product with no-waste of raw material, and offers a high level of customization without non-returnable investment of any kind. - suitable for Nano MQS connector family; - small pin size and distance between inserted pins allows for use in compact spaces, which is very important in the automotive industry. [gallery link="file" ids="6832,4272,6774"] Characteristics and requirements: - press-in force - less than 60 N, average 42 N; - push-out force - more than 50 N, average 73 N; - recommended PCB hole for insertion - ? 0.6 mm; - hole pitch 1.6 mm (compare with standard 0.6 mm pin pitch in 2/2.5 mm) - can be wider on request; - pin material CuNiSi - K55, hardened copper alloy with excellent spring properties and good corrosion resistance. It combines medium electrical conductivity with high strength and good relaxation behaviour. End-to-end supply Pins are supplied in plastic reels in end-to-end format. Reels are compact (? 800 mm), easy to change and rechargeable. Each contains approximately 200 000 pins. End-to-end format means you don't have to waste extra material. [gallery link="file" columns="2" size="large" ids="6902,6906"] Pin insertion equipment Assembly of 0.4x0.5 mm press-fit terminals to PCB can be efficiently accomplished with SM Contact insertion equipment and a custom-designed insertion head. Pininsert machines can feed, cut and insert a single pin in full automatic mode, with a tack time around up to 0.3 sec per pin.

Pininsert 2100 and Pininsert 2100 XL	Pininsert 3200
Semi-automatic pin insertion into the PCB. Stand-alone or inline machine for small and medium production volumes (up to 3 600 pins per hour).	Conveyor version of high-volume semi-automatic pin insertion into PCB.

Pin bending 0.4x0.5 mm press-fit pins offer various ways to process shape modifications as necessary. It’s possible to perform electrical connections at 90 degrees in order to optimise spaces. Bending module can be: - stand-alone or integrated into the machine, - with conveyor or manual loading of PCB. Bending of pins can be performed either before or after insertion into PCB:

Bending before insertion	Bending after insertion

In addition to 0.4x0.5 mm, the following press-fit pins have been in production at SM Contact for over a decade: 0.6 x 1 mm, 0.63 x 0.63 mm, 0.6 x 1.2 mm, 0.8 x 1.4 mm. Please send requests to SM Contact team smcontact@smcontact.eu