Welding PCB Connector Specification Handoff

Welding pcb connector

Compact specification handoff for a welding pcb connector phrase that buyers use in three different ways. Pick the meaning before a factory substitutes a part. This is a sourcing worksheet for LinkScope Sourcing 40, an independent sourcing partner. It is not an environmental program and not a factory capability statement.

Solder joint

Many briefs say welding when they mean a soldered tail on the board. Record through-hole or surface-mount, board thickness, and alloy if the process is specified.

Welded contact

Some contacts are resistance-welded or otherwise joined inside the housing. Ask the supplier to name the joint, not to assume solder.

Welding equipment

The connector may sit on a welder control board. Then the environment, vibration, and current matter more than the word weld itself.

Open points to close or to label unknown

Termination method

Choose solder, crimp, press-fit, or a welded contact, and say if more than one may be quoted. A crimp housing with loose contacts is a different kit from a soldered header. Tail length and PCB thickness travel with solder and press-fit. Crimp adds the contact reel and the tool.

Plating callout

Write tin or gold, and if gold, a thickness such as 15 µin or 30 µin. Ask for the underplate. A flash of gold and a 30 µin deposit should not share one price line. Connector mating cycle, if required, needs the test method the supplier will cite.

Footprint lock

Pitch, positions, rows, and keying. If the part is also a 5 pin pcb connector plug or a pcb connector 01 inch header, say so. A welding pcb connector request that omits pitch invites a fine-pitch substitute.

What an alternate must show

Before you accept a substitute, require the same termination class, the same contact count, a stated plating, and a deviation list. A photograph of a similar housing is not that list. If impedance, insertion loss, or return loss is in the original drawing, the alternate must address those lines or mark them unmet.

Checks before the alternate is accepted

Still openMeaning of welding, plating thickness, pitch, sealed or open

Must matchContact count, gender, key, and the termination class you locked

May differ if labeledMaker name, housing color, packaging reel versus bag

Reject quietly mixingA lower price that drops gold thickness or drops the latch

Current rating stays conditional. Request amperes at a named temperature rise, often 20°C or 30°C on connector sheets, and the ambient the test used. Voltage rating is a separate line. Ingress protection applies only if the housing is sealed. Do not copy an IP67 sentence onto a soldered open header.

High-frequency use is uncommon for a plain welded or soldered header, but if the board is an RF path, ask for frequency range and whether VSWR or impedance is specified. If those words are absent from your drawing, leave them off the quote so suppliers do not invent a radio specification.

An OEM-coded connector may sit closer to the host maker support rules. A compatible housing may be acceptable when contact count, key, and termination class match and the deviation is written on the quote. New material and a refurbished or surplus body are not one offer: the surplus piece can fill a discontinued footprint and still lack a plating record. Accept an alternate only after those two splits are marked.

Commercial leftovers: quantity, US destination, requested timing, currency, and whether a target budget is per unit or for the whole order. Tooling, contact reels, and freight are exclusions until listed. High-end, mid-range, budget, or undecided remains a buyer preference.

Sourcing scenario: a translated drawing says welding pcb connector and the first factory quotes a crimp kit. Background is a control board repaired by solder, not by a hand crimper. Process is to reply that the termination class is solder and that crimp is an alternate only if the buyer later approves a housing change. Result is two prices that are not averaged, plus a note that the original joint method is still unconfirmed until the factory names solder alloy or a weld schedule.

The inquiry list holds the sealed and 0.100 inch names. Use this handoff when the termination word is the unresolved item. TIA-568 remains a cabling question source if the wires leave the board into a premise plant. It does not define a weld schedule.