Wire to board connectors are used to interconnect printed circuit boards (PCBs) by using connectors attached to wires. Specifications for a wire to board connector include wire-entry angle, wire size, circuits or positions, pitch or center spacing, lock to mating style, and maximum current. There are three wire-entry angle styles: vertical, right-angle, and bottom-entry. Wire size is usually measured in American wire gauge (AWG), a standard for non-ferrous wire conductor sizes. The term "gauge" refers to the wire’s diameter. The higher the gauge number, the smaller the diameter and the thinner the wire. With wire to board connectors, the number of circuits or positions may range from 1 to 120. Pitch or center spacing is measured in millimeters (mm) or inches. There are three basic lock-to-mating styles: positive, friction, and friction ramp. The maximum current or current-carrying capacity is measured in amperes (A) and ranges from 1.0 A to 50. A.
Selecting wire to board connectors requires an understanding of termination methods and PCB mounting styles. Crimp is the physical compression of a contact wire around a conductor to make an electrical and mechanical connection. Insulation displacement connectors (IDC) slice through the cable insulation to make a connection. Choices for termination method also include cage clamp, screw, tabs, and solder cups. With wire to board connectors, there are four choices for PCB mounting: through-hole technology (THT), surface mount technology (SMT), PCB edge, press-fit, and straddle. THT mounts components on a PCB by inserting component leads through holes in the board and then soldering the leads in place on the opposite side of the board. SMT adds components to a PCB by soldering component leads or terminals to the top surface of the board. SMT components have a flat surface that is soldered to a flat pad on the face of the PCB. Typically, the PCB pad is coated with a paste-like formulation of solder and flux. Press-fit and compression-style board to board connectors are also commonly available.
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Engineering Web: Wire to Board Connectors
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PCB-Board-to-Board Connectors |
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Wire to Board Connectors - 1.25mm Wire to Board Connector,... Wire to Board Connectors 1.25mm Wire to Board Connector - 1250/1251 Series Series 1250/1251 is available in straight or right angle type. |
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Alligator Clips, Test Leads, Board to Board Connector Board to Board Connectors Over 20,000 stocked pin headers and sockets, and flexible manufacturing capability to meet custom board to board or wire to See Mueller Electric Company Information |
Part Numbers for Wire to Board Connectors
| Part # | Distributor | Manufacturer | Product Category | Description |
|---|---|---|---|---|
| B03B-PAKK(LF)(SN)-ND | Digi-Key | JST Sales America Inc | Connectors | CONN 2MM WIRE TO BOARD |
| DF19-20P-1V(56)-ND | Digi-Key | Hirose Electric Co Ltd | Connectors | HEADER BOARD TO WIRE 1MM 20POS |
| 770642-1-ND | Digi-Key | Tyco Electronics Amp | Connectors | TIMER CONN TERM,REAR CARRIER |
| 329317-ND | Digi-Key | Tyco Electronics Amp | Connectors | CONN SPLICE 22-24 AWG LANCELOK |
| 16-02-0037-ND | Digi-Key | Molex/Waldom Electronics Corp | Connectors | CONN TERM MALE 22-26AWG PCB |
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