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. 162-1754
Mfr. Part No.7461070
MYR10.184
Each (In a Box of 500)
units
Straight - - - - - - Brass Tin - - -
RS Stock No. 409-1909
Mfr. Part No.8189
BrandKeystone
MYR7.215
Each (In a Bag of 10)
units
45 deg - 15A - - - 4 Brass Nickel Natural - -
RS Stock No. 122-4963
Mfr. Part No.7461093
MYR19.61
Each
units
Vertical - 160A - - - 9 - Tin - - -
RS Stock No. 142-4097
Mfr. Part No.7466313R
MYR14.50
Each
units
Right Angle - 50A - - - 2 Brass Tin - - -
RS Stock No. 176-9987
Mfr. Part No.7466005R
MYR9.69
Each
units
Vertical - 70A - - - - Brass Tin - - -
RS Stock No. 122-4980
Mfr. Part No.7461068
MYR69.57
Each
units
Right Angle - 250A - - - 25 - Tin - - -
RS Stock No. 122-4985
Mfr. Part No.7461114
MYR39.06
Each
units
Right Angle - 250A - - - 25 - Tin - - -
RS Stock No. 163-1868
Mfr. Part No.7461101
MYR16.61
Each (In a Box of 350)
units
Right Angle - 100A - - - 6 - Tin - - -
RS Stock No. 162-1772
Mfr. Part No.7462096
MYR12.834
Each (In a Box of 250)
units
Straight - - - - - - Brass Tin - - -
RS Stock No. 122-4994
Mfr. Part No.7461383
MYR10.10
Each
units
Vertical - 180A - - - 16 - Tin - - -
RS Stock No. 122-4971
Mfr. Part No.7461101
MYR21.00
Each
units
Right Angle - 100A - - - 6 - Tin - - -
RS Stock No. 917-5318
Mfr. Part No.225676
BrandERNI
MYR18.24
Each (In a Pack of 5)
units
Vertical - 160A - - - 16 - Tin - - -
RS Stock No. 122-4951
Mfr. Part No.7460305
MYR10.43
Each
units
Vertical - 160A - - - 8 - Tin - - -
RS Stock No. 163-1860
Mfr. Part No.7461093
MYR13.46
Each (In a Box of 500)
units
Vertical - 160A - - - 9 - Tin - - -
RS Stock No. 122-4991
Mfr. Part No.7461096
MYR12.60
Each
units
Vertical - 130A - - - 9 - Tin - - -
RS Stock No. 176-9862
Mfr. Part No.7466005R
MYR4.56
Each (On a Reel of 600)
units
Vertical - 70A - - - - Brass Tin - - -
RS Stock No. 163-1855
Mfr. Part No.7461068
MYR37.853
Each (In a Box of 75)
units
Right Angle - 250A - - - 25 - Tin - - -
RS Stock No. 122-5147
Mfr. Part No.7466213R
MYR12.67
Each
units
Vertical - 50A - - - - - Tin - - -
RS Stock No. 122-5143
Mfr. Part No.7466203R
MYR10.13
Each
units
Vertical - 50A - - - - - Tin - - -
RS Stock No. 162-2151
Mfr. Part No.7462810
MYR25.05
Each
units
Straight - 70A - - - - Brass Tin - - -
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