Screw Terminals

What is a Screw Terminal?


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 122-5139
製造零件編號7466003R
HK$21.22
單位
Vertical - 50A - - - - - Tin - - -
RS庫存編號 141-8488
製造零件編號74650094R
HK$21.73
個 (在毎卷:600)
單位
Vertical - 85A - - - 8 Brass Tin - - -
RS庫存編號 163-1866
製造零件編號7461099
HK$34.74
個 (以毎盒:100)
單位
Vertical - 250A - - - 25 - Tin - - -
RS庫存編號 176-9866
製造零件編號74651175R
HK$16.179
個 (在毎卷:300)
單位
Vertical - 50A - - - 4 Brass Tin - - -
RS庫存編號 163-1883
製造零件編號7461148
HK$58.36
個 (以毎盒:500)
單位
Vertical - 130A - - - 8 - Tin - - -
RS庫存編號 163-1871
製造零件編號7461104
HK$67.09
個 (以毎盒:200)
單位
Right Angle - 160A - - - 8 - Tin - - -
RS庫存編號 176-9860
製造零件編號7466205R
HK$12.759
個 (在毎卷:500)
單位
Vertical - 70A - - - - Brass 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 122-4953
製造零件編號7460553
HK$40.24
單位
Vertical - 240A - - - 10 - Tin - - -
RS庫存編號 917-5355
製造零件編號225686
BrandERNI
HK$89.176
/個 (每包:5個)
單位
Vertical - 360A - - - 36 - Tin - - -
RS庫存編號 163-1881
製造零件編號7461117
HK$131.014
個 (以毎盒:50)
單位
Right Angle - 340A - - - 36 - Tin - - -
RS庫存編號 122-4951
製造零件編號7460305
HK$20.73
單位
Vertical - 160A - - - 8 - Tin - - -
RS庫存編號 177-0051
製造零件編號74651173R
HK$25.60
單位
Vertical - 50A - - - 4 Brass Tin - - -
RS庫存編號 163-1876
製造零件編號7461111
HK$41.59
個 (以毎盒:250)
單位
Right Angle - 180A - - - 16 - Tin - - -
RS庫存編號 178-8752
BrandRS PRO
HK$0.216
個 (以毎袋:100)
單位
Straight 3 x 20 → 3 x 16 AWG - 3 x 20AWG - 3 x 16AWG - Thermoplastic - Blue - -
RS庫存編號 141-8492
製造零件編號74650195R
HK$23.53
個 (在毎卷:400)
單位
Vertical - 85A - - - 9 Brass Tin - - -
RS庫存編號 141-8489
製造零件編號74650173R
HK$21.73
個 (在毎卷:450)
單位
Vertical - 50A - - - 4 Brass Tin - - -
RS庫存編號 163-1862
製造零件編號7461095
HK$20.79
個 (以毎盒:250)
單位
Vertical - 180A - - - 16 - Tin - - -
RS庫存編號 917-5320
製造零件編號225678
BrandERNI
HK$49.998
/個 (每包:5個)
單位
Vertical - 250A - - - 25 - Tin - - -
RS庫存編號 122-4994
製造零件編號7461383
HK$20.73
單位
Vertical - 180A - - - 16 - Tin - - -