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. 917-5320
Mfr. Part No.225678
BrandERNI
SGD6.292
Each (In a Pack of 5)
units
Vertical - 250A - - - 25 - Tin - - -
RS Stock No. 142-4113
Mfr. Part No.74650195R
SGD5.79
Each
units
Vertical - 85A - - - 9 Brass Tin - - -
RS Stock No. 165-1020
Mfr. Part No.9-55556-0
SGD3.998
Each (In a Box of 500)
units
Straight - 25A - - - - Nylon - - - -
RS Stock No. 122-4976
Mfr. Part No.7461107
SGD24.10
Each
units
Right Angle - 240A - - - 10 - Tin - - -
RS Stock No. 122-4962
Mfr. Part No.7461061
SGD17.95
Each
units
Vertical - 340A - - - 36 - Tin - - -
RS Stock No. 122-4987
Mfr. Part No.7461117
SGD28.80
Each
units
Right Angle - 340A - - - 36 - Tin - - -
RS Stock No. 163-1846
Mfr. Part No.7460719
SGD7.123
Each (In a Box of 100)
units
Vertical - 250A - - - 25 - Tin - - -
RS Stock No. 177-0051
Mfr. Part No.74651173R
SGD4.61
Each
units
Vertical - 50A - - - 4 Brass Tin - - -
RS Stock No. 162-2264
Mfr. Part No.7461120
SGD4.94
Each
units
Straight - - - - - - Brass Tin - - -
RS Stock No. 122-4982
Mfr. Part No.7461111
SGD9.84
Each
units
Right Angle - 180A - - - 16 - Tin - - -
RS Stock No. 614-2425
Mfr. Part No.7689
BrandKeystone
SGD0.665
Each (In a Bag of 10)
units
Right Angle 22 → 14 AWG 15A - Yes - 4 Brass Tin Natural 14AWG 22AWG
RS Stock No. 481-3917
Mfr. Part No.8190-3
BrandKeystone
SGD0.974
Each (In a Pack of 10)
units
Right Angle 22 → 14 AWG 15A - - - 4 Brass Nickel Black 14AWG 22AWG
RS Stock No. 163-1865
Mfr. Part No.7461098
SGD4.352
Each (In a Box of 150)
units
Vertical - 250A - - - 25 - Tin - - -
RS Stock No. 142-4029
Mfr. Part No.74650074R
SGD4.84
Each
units
Vertical - 50A - - - 4 Brass Tin - - -
RS Stock No. 122-4985
Mfr. Part No.7461114
SGD14.76
Each
units
Right Angle - 250A - - - 25 - Tin - - -
RS Stock No. 162-2138
Mfr. Part No.7461070
SGD5.12
Each
units
Straight - - - - - - Brass Tin - - -
RS Stock No. 176-9977
Mfr. Part No.7466105R
SGD4.13
Each
units
Vertical - 70A - - - - Brass Tin - - -
RS Stock No. 163-1882
Mfr. Part No.7461147
SGD2.67
Each (In a Box of 250)
units
Vertical - 180A - - - 16 - Tin - - -
RS Stock No. 163-1866
Mfr. Part No.7461099
SGD5.21
Each (In a Box of 100)
units
Vertical - 250A - - - 25 - Tin - - -
RS Stock No. 122-4981
Mfr. Part No.7461110
SGD8.64
Each
units
Right Angle - 130A - - - 9 - Tin - - -