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庫存編號 481-3917
製造零件編號8190-3
BrandKeystone
TWD22.10
/個 (每包:10個)
單位
Right Angle 22 → 14 AWG 15A - - - 4 Brass Nickel Black 14AWG 22AWG
RS庫存編號 614-2425
製造零件編號7689
BrandKeystone
TWD18.00
個 (以毎袋:10)
單位
Right Angle 22 → 14 AWG 15A - Yes - 4 Brass Tin Natural 14AWG 22AWG
全新
RS庫存編號 230-2036
製造零件編號74622110
TWD337.00
單位
Right Angle - 350A - - - 30 Brass - - - -
RS庫存編號 122-4975
製造零件編號7461106
TWD458.00
單位
Right Angle - 240A - - - 10 - Tin - - -
全新
RS庫存編號 230-2037
製造零件編號74663025R
TWD29.10
個 (在毎卷:1600)
單位
Right Angle - 50A - - - - Brass - - - -
全新
RS庫存編號 230-2038
製造零件編號74663025R
TWD38.10
Each (On a Tape of 10)
單位
Right Angle - 50A - - - - Brass - - - -
RS庫存編號 177-0036
製造零件編號74651174R
TWD124.00
單位
Vertical - 50A - - - 4 Brass Tin - - -
RS庫存編號 163-1853
製造零件編號7461066
TWD192.10
個 (以毎盒:250)
單位
Right Angle - 130A - - - 9 - Tin - - -
RS庫存編號 122-4976
製造零件編號7461107
TWD611.00
單位
Right Angle - 240A - - - 10 - Tin - - -
RS庫存編號 164-2186
製造零件編號1-5055323-0
TWD51.80
個 (以毎盒:1000)
單位
Straight - 25A - - - - - - - - -
RS庫存編號 163-1854
製造零件編號7461067
TWD350.60
個 (以毎盒:250)
單位
Right Angle - 180A - - - 16 - Tin - - -
RS庫存編號 163-1849
製造零件編號7461061
TWD385.70
個 (以毎盒:60)
單位
Vertical - 340A - - - 36 - Tin - - -
RS庫存編號 178-8754
BrandRS PRO
TWD2.30
個 (以毎袋:50)
單位
Straight 1 x 14 AWG, 1 x 18 AWG, 1 x 18 → 4 x 14 AWG - 1 x 14 AWG, 1 x 18AWG - 1 x 18 AWG, 4 x 14AWG - Thermoplastic - Yellow - -
RS庫存編號 122-4985
製造零件編號7461114
TWD377.00
單位
Right Angle - 250A - - - 25 - Tin - - -
RS庫存編號 176-9987
製造零件編號7466005R
TWD94.00
單位
Vertical - 70A - - - - Brass Tin - - -
RS庫存編號 122-4991
製造零件編號7461096
TWD125.00
單位
Vertical - 130A - - - 9 - Tin - - -
RS庫存編號 177-2738
製造零件編號746600330R
TWD112.00
單位
Horizontal - 50A - - - - Brass Tin - - -
全新
RS庫存編號 230-2034
製造零件編號74622108
TWD273.00
單位
Right Angle - 250A - - - 20 Brass - - - -
RS庫存編號 163-1851
製造零件編號7461063
TWD192.10
個 (以毎盒:250)
單位
Right Angle - 160A - - - 8 - Tin - - -
全新
RS庫存編號 230-2011
製造零件編號74611104
TWD332.90
個 (以毎盒:250)
單位
Right Angle - 180A - - - 16 Brass - - - -