Screw Terminals

A screw terminal is an electrical connector made from plated brass that enables wires to be connected directly to a PCB and consists of a metal frame and a screw. The screw terminal is secured to the PCB using mounting legs which are snapped into holes on the PCB and soldered into place. Pre-stripped wire is wrapped under the head of the screw and the screw is tightened down using a screwdriver making a secure electrical connection between the wire and the metal frame. Wires that are terminated with connectors such as spade or ring terminals are pushed into place over the screw. Screw terminals are available with a right angle or vertical mounting body orientation, different body platings and to suit a wide range of current ratings
Some screw terminals feature colour coded screws for ease of identification and to aid trouble shooting.


Benefits of Screw Terminals


• Simple to use and easy to snap into place. Only basic hand tools required
• Allow high density wire connections to PCB
• Low cost, eliminate the need for a mating connector
• When properly tightened provide an electrically secure connection
• Can be reused in the field allowing for the replacement of wires or equipment
• Can be used with solid, stranded and pre-terminated wire
• Kinked leg versions for extra retention on the PCB


Where are screw terminals used?


PCB screw terminals allow electrical signals and current to flow to and from PCBs and electrical equipment.


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Description Price Orientation Wire Size Current Rating Minimum Wire Size AWG Snap-In Maximum Wire Size AWG Number of Legs Body Material Body Plating Colour Maximum Wire Size Minimum Wire Size
RS Stock No. 122-4953
Mfr. Part No.7460553
MYR17.65
Each
units
Vertical - 240A - - - 10 - Tin - - -
RS Stock No. 162-1292
Mfr. Part No.7460553
MYR15.451
Each (In a Box of 100)
units
Vertical - 240A - - - 10 - Tin - - -
RS Stock No. 122-4967
Mfr. Part No.7461147
MYR9.09
Each
units
Vertical - 180A - - - 16 - Tin - - -
RS Stock No. 163-1882
Mfr. Part No.7461147
MYR7.93
Each (In a Box of 250)
units
Vertical - 180A - - - 16 - Tin - - -
RS Stock No. 122-4992
Mfr. Part No.7461098
MYR15.91
Each
units
Vertical - 250A - - - 25 - Tin - - -
RS Stock No. 122-4993
Mfr. Part No.7461100
MYR34.05
Each
units
Vertical - 340A - - - 36 - Tin - - -
RS Stock No. 176-9987
Mfr. Part No.7466005R
MYR9.69
Each
units
Vertical - 70A - - - - Brass Tin - - -
RS Stock No. 142-4062
Mfr. Part No.7466303R
MYR9.82
Each
units
Right Angle - 50A - - - - Brass Tin - - -
RS Stock No. 122-4954
Mfr. Part No.7461057
MYR8.60
Each
units
Vertical - 100A - - - 6 - Tin - - -
RS Stock No. 163-1846
Mfr. Part No.7460719
MYR19.866
Each (In a Box of 100)
units
Vertical - 250A - - - 25 - Tin - - -
RS Stock No. 177-0051
Mfr. Part No.74651173R
MYR11.85
Each
units
Vertical - 50A - - - 4 Brass Tin - - -
RS Stock No. 177-0017
Mfr. Part No.74651195R
MYR12.16
Each
units
Vertical - 85A - - - 9 Brass Tin - - -
RS Stock No. 122-4980
Mfr. Part No.7461068
MYR69.57
Each
units
Right Angle - 250A - - - 25 - Tin - - -
RS Stock No. 176-9939
Mfr. Part No.74651175R
MYR11.85
Each
units
Vertical - 50A - - - 4 Brass Tin - - -
RS Stock No. 142-4046
Mfr. Part No.74650094R
MYR15.08
Each
units
Vertical - 85A - - - 8 Brass Tin - - -
RS Stock No. 122-5144
Mfr. Part No.7466204R
MYR10.14
Each
units
Vertical - 50A - - - - - Tin - - -
RS Stock No. 162-2151
Mfr. Part No.7462810
MYR14.65
Each
units
Straight - 70A - - - - Brass Tin - - -
RS Stock No. 122-4975
Mfr. Part No.7461106
MYR47.53
Each
units
Right Angle - 240A - - - 10 - Tin - - -
RS Stock No. 122-4964
Mfr. Part No.7461095
MYR11.38
Each
units
Vertical - 180A - - - 16 - Tin - - -
RS Stock No. 122-4982
Mfr. Part No.7461111
MYR26.01
Each
units
Right Angle - 180A - - - 16 - Tin - - -