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 122-4990
製造零件編號7461094
HK$31.63
單位
Vertical - 130A - - - 9 - Tin - - -
RS庫存編號 163-1861
製造零件編號7461094
HK$22.051
個 (以毎盒:500)
單位
Vertical - 130A - - - 9 - Tin - - -
RS庫存編號 163-3413
製造零件編號7466113R
HK$15.158
個 (在毎卷:500)
單位
Vertical - 50A - - - - - Tin - - -
RS庫存編號 122-5145
製造零件編號7466113R
HK$21.84
單位
Vertical - 50A - - - - - Tin - - -
RS庫存編號 847-8710
製造零件編號PCSB4-3-12Y
BrandPanduit
HK$269.80
單位
Straight 14 → 10 AWG, 14 → 4 AWG - - Yes - 3 Aluminium - Natural 4AWG, 10 AWG 14AWG
RS庫存編號 481-3917
製造零件編號8190-3
BrandKeystone
HK$4.228
/個 (每包:10個)
單位
Right Angle 22 → 14 AWG 15A - - - 4 Brass Nickel Black 14AWG 22AWG
RS庫存編號 162-2133
製造零件編號7462098
HK$35.75
單位
Straight - - - - - - Brass Tin - - -
RS庫存編號 162-2136
製造零件編號7461123
HK$26.78
單位
Straight - - - - - - Brass Tin - - -
RS庫存編號 142-4012
製造零件編號74650073R
HK$32.26
單位
Vertical - 50A - - - 4 Brass Tin - - -
RS庫存編號 176-9862
製造零件編號7466005R
HK$9.348
個 (在毎卷:600)
單位
Vertical - 70A - - - - Brass Tin - - -
RS庫存編號 917-5327
製造零件編號225677
BrandERNI
HK$42.044
/個 (每包:5個)
單位
Vertical - 160A - - - 16 - Tin - - -
RS庫存編號 122-5143
製造零件編號7466203R
HK$21.22
單位
Vertical - 50A - - - - - Tin - - -
RS庫存編號 163-1856
製造零件編號7461084
HK$24.14
個 (以毎盒:150)
單位
Vertical - 160A - - - 8 - Tin - - -
RS庫存編號 122-4973
製造零件編號7461103
HK$51.70
單位
Right Angle - 160A - - - 8 - Tin - - -
RS庫存編號 163-1847
製造零件編號7461058
HK$87.344
個 (以毎盒:50)
單位
Vertical - 320A - - - 12 - Tin - - -
RS庫存編號 162-1772
製造零件編號7462096
HK$24.168
個 (以毎盒:250)
單位
Straight - - - - - - Brass Tin - - -
RS庫存編號 162-2259
製造零件編號7462095
HK$60.46
單位
Straight - - - - - - Brass Tin - - -
RS庫存編號 122-4985
製造零件編號7461114
HK$81.72
單位
Right Angle - 250A - - - 25 - Tin - - -
RS庫存編號 917-5355
製造零件編號225686
BrandERNI
HK$96.686
/個 (每包:5個)
單位
Vertical - 360A - - - 36 - Tin - - -
RS庫存編號 178-8750
BrandRS PRO
HK$0.198
個 (以毎袋:100)
單位
Straight 1 x 20 AWG, 1 x 22 → 2 x 16 AWG - 1 x 20 AWG, 1 x 22AWG - 2 x 16AWG - Thermoplastic - Grey - -