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. 142-4046
Mfr. Part No.74650094R
TWD152.00
Each
units
Vertical - 85A - - - 8 Brass Tin - - -
RS Stock No. 122-4955
Mfr. Part No.7461058
TWD455.00
Each
units
Vertical - 320A - - - 12 - Tin - - -
RS Stock No. 122-4975
Mfr. Part No.7461106
TWD410.00
Each
units
Right Angle - 240A - - - 10 - Tin - - -
RS Stock No. 162-2108
Mfr. Part No.7460211
TWD263.00
Each
units
Straight - - - - - - Brass Tin - - -
RS Stock No. 122-4990
Mfr. Part No.7461094
TWD137.00
Each
units
Vertical - 130A - - - 9 - Tin - - -
RS Stock No. 122-4968
Mfr. Part No.7461062
TWD402.00
Each
units
Right Angle - 100A - - - 6 - Tin - - -
RS Stock No. 176-9862
Mfr. Part No.7466005R
TWD50.20
Each (On a Reel of 600)
units
Vertical - 70A - - - - Brass Tin - - -
RS Stock No. 177-0051
Mfr. Part No.74651173R
TWD111.00
Each
units
Vertical - 50A - - - 4 Brass Tin - - -
RS Stock No. 717-6606
Mfr. Part No.9-55556-0
TWD207.00
Each
units
Straight - 25A - - - - Nylon - - - -
RS Stock No. 2508829679
Mfr. Part No.8196
BrandKeystone
TWD24.00
Each
units
- - - - - - - - - - - -
RS Stock No. 2509523824
Mfr. Part No.LAMA250-56-QY
BrandPanduit
TWD6,445.00
1 Pack of 25
Pack(s)
- - - - - - - - - - - -
RS Stock No. 2509523773
Mfr. Part No.LAM2A250-38-6Y
BrandPanduit
TWD4,084.00
1 Pack of 6
Pack(s)
- - - - - - - - - - - -
RS Stock No. 2509517885
Mfr. Part No.JN218-216-C
BrandPanduit
TWD2,077.00
1 Pack of 100
Pack(s)
- - - - - - - - - - - -
RS Stock No. 2509517914
Mfr. Part No.JN418-212-C
BrandPanduit
TWD3,211.00
1 Pack of 100
Pack(s)
- - - - - - - - - - - -
RS Stock No. 2509523830
Mfr. Part No.LAMA500-38-6Y
BrandPanduit
TWD4,285.00
1 Pack of 6
Pack(s)
- - - - - - - - - - - -
RS Stock No. 2509294030
Mfr. Part No.2H
TWD150.00
Each
units
- - - - - - - - - - - -
RS Stock No. 2508829663
Mfr. Part No.1209
BrandKeystone
TWD35.00
Each
units
- - - - - - - - - - - -
RS Stock No. 2509603403
Mfr. Part No.T/Y+
Brand3M
TWD5,467.00
1 Pack of 100
Pack(s)
- - - - - - - - - - - -
RS Stock No. 2509294068
Mfr. Part No.4H
TWD124.00
Each
units
- - - - - - - - - - - -
RS Stock No. 2509517908
Mfr. Part No.JN314-412-C
BrandPanduit
TWD4,010.00
1 Pack of 100
Pack(s)
- - - - - - - - - - - -