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 162-1775
製造零件編號7462810
HK$35.644
個 (以毎盒:1000)
單位
Straight - 70A - - - - Brass Tin - - -
RS庫存編號 176-9869
製造零件編號74651173R
HK$19.85
個 (在毎卷:350)
單位
Vertical - 50A - - - 4 Brass Tin - - -
RS庫存編號 162-2264
製造零件編號7461120
HK$26.67
單位
Straight - - - - - - Brass Tin - - -
全新
RS庫存編號 203-2512
製造零件編號3RK1902-4BA00-5AA0
BrandSiemens
HK$128.57
單位
Straight 20 → 30 AWG 4A 30AWG Yes 20AWG 5 Polyamide - - - -
RS庫存編號 142-4064
製造零件編號74650173R
HK$36.20
單位
Vertical - 50A - - - 4 Brass Tin - - -
RS庫存編號 142-4029
製造零件編號74650074R
HK$31.22
單位
Vertical - 50A - - - 4 Brass Tin - - -
RS庫存編號 162-1763
製造零件編號7461122
HK$25.24
個 (以毎盒:1000)
單位
Straight - - - - - - Brass Tin - - -
RS庫存編號 122-5148
製造零件編號7466214R
HK$22.53
單位
Horizontal - 50A - - - - - Tin - - -
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 163-1855
製造零件編號7461068
HK$65.228
個 (以毎盒:75)
單位
Right Angle - 250A - - - 25 - Tin - - -
RS庫存編號 163-1868
製造零件編號7461101
HK$34.74
個 (以毎盒:350)
單位
Right Angle - 100A - - - 6 - Tin - - -
RS庫存編號 162-2168
製造零件編號7461126
HK$32.41
單位
Straight - - - - - - Brass Tin - - -
RS庫存編號 717-6595
製造零件編號5055557-4
HK$38.62
單位
Straight - 25A - - - - Nylon - - - -
RS庫存編號 122-4965
製造零件編號7461097
HK$25.85
單位
Vertical - 240A - - - 16 - Tin - - -
RS庫存編號 163-1851
製造零件編號7461063
HK$41.59
個 (以毎盒:250)
單位
Right Angle - 160A - - - 8 - Tin - - -
RS庫存編號 176-9939
製造零件編號74651175R
HK$25.60
單位
Vertical - 50A - - - 4 Brass Tin - - -
RS庫存編號 614-2425
製造零件編號7689
BrandKeystone
HK$3.924
個 (以毎袋:10)
單位
Right Angle 22 → 14 AWG 15A - Yes - 4 Brass Tin Natural 14AWG 22AWG
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 - -
RS庫存編號 142-4079
製造零件編號74650174R
HK$34.39
單位
Vertical - 50A - - - 4 Brass Tin - - -
RS庫存編號 122-5140
製造零件編號7466004R
HK$20.16
單位
Vertical - 50A - - - - - Tin - - -