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
SGD7.01
Each
units
Vertical - 240A - - - 10 - Tin - - -
RS Stock No. 122-5147
Mfr. Part No.7466213R
SGD3.43
Each
units
Vertical - 50A - - - - - Tin - - -
RS Stock No. 917-5327
Mfr. Part No.225677
BrandERNI
SGD5.882
Each (In a Pack of 5)
units
Vertical - 160A - - - 16 - Tin - - -
RS Stock No. 717-6606
Mfr. Part No.9-55556-0
SGD5.44
Each
units
Straight - 25A - - - - Nylon - - - -
RS Stock No. 162-2108
Mfr. Part No.7460211
SGD8.94
Each
units
Straight - - - - - - Brass Tin - - -
RS Stock No. 162-1292
Mfr. Part No.7460553
SGD5.54
Each (In a Box of 100)
units
Vertical - 240A - - - 10 - Tin - - -
RS Stock No. 122-4970
Mfr. Part No.7461064
SGD15.95
Each
units
Right Angle - 240A - - - 10 - Tin - - -
RS Stock No. 163-1864
Mfr. Part No.7461097
SGD3.561
Each (In a Box of 200)
units
Vertical - 240A - - - 16 - Tin - - -
RS Stock No. 162-2118
Mfr. Part No.7461122
SGD7.46
Each
units
Straight - - - - - - Brass Tin - - -
RS Stock No. 142-4079
Mfr. Part No.74650174R
SGD5.34
Each
units
Vertical - 50A - - - 4 Brass Tin - - -
RS Stock No. 163-1859
Mfr. Part No.7461090
SGD11.62
Each (In a Box of 75)
units
Vertical - 340A - - - 20 - Tin - - -
RS Stock No. 122-4979
Mfr. Part No.7461067
SGD18.06
Each
units
Right Angle - 180A - - - 16 - Tin - - -
RS Stock No. 122-5144
Mfr. Part No.7466204R
SGD3.98
Each
units
Vertical - 50A - - - - - Tin - - -
RS Stock No. 163-1843
Mfr. Part No.7460305
SGD2.849
Each (In a Box of 250)
units
Vertical - 160A - - - 8 - Tin - - -
RS Stock No. 718-9422
Mfr. Part No.167892-2
SGD3.12
Each
units
Straight - 40A - - - - - - - - -
RS Stock No. 163-1871
Mfr. Part No.7461104
SGD10.11
Each (In a Box of 200)
units
Right Angle - 160A - - - 8 - Tin - - -
RS Stock No. 122-5146
Mfr. Part No.7466114R
SGD3.86
Each
units
Vertical - 50A - - - - - Tin - - -
RS Stock No. 122-4975
Mfr. Part No.7461106
SGD17.95
Each
units
Right Angle - 240A - - - 10 - Tin - - -
RS Stock No. 162-1753
Mfr. Part No.7461059
SGD8.177
Each (In a Box of 100)
units
Straight - 240A - - - - Brass Tin - - -
RS Stock No. 122-5140
Mfr. Part No.7466004R
SGD3.98
Each
units
Vertical - 50A - - - - - Tin - - -