Screw Terminal Block: 3-Pin, 3.5 mm Pitch, Top Entry (4-Pack)

Pololu item #: 2447
Brand: Generic
RoHS 3 compliant

Price break Unit price (US$)
1 2.35
10 2.12


These top-entry screw terminal blocks have a pitch of 3.5 mm (0.138″). Each block has three terminals for the stripped ends of 24 – 18 AWG wires, and units can slide together to make longer strips. They are rated for 125 V, 10 A (UL) and ship in packs of four.

Alternatives available with variations in these parameter(s): pins spacing orientation Select variant…

 Description Specs (9) Pictures (1) Resources (0) FAQs (0) On the blog (0) 

Overview

These terminal blocks have terminals that hold and release wires through the simple adjustment of a screw, allowing you to easily make temporary connections to a PCB. The 2-pin and 3-pin units each feature a ridge on one side and a slot on the other, which lets them slide and lock together to form arbitrarily long strips with a pitch of 3.5 mm or 5 mm. Each terminal block is available in two orientations: side-entry and top-entry.

The following short video gives a quick overview of how to install these terminal blocks onto our boards:

Details for item #2447

This product is a four-pack of 3.5mm-pitch, three-pin, top-entry terminal blocks. The more general dimension diagram for an XX-pin version of this screw terminal block is shown below.

Screw terminal block: 3.5 mm pitch, top entry.

  • Voltage rating (UL/IEC): 125/130 V
  • Current rating (UL/IEC): 10/10 A
  • Contact resistance: 20 mΩ
  • Wire gauge: 24-18 AWG
  • Wire strip length: 5 mm

Other terminal block options

We carry several different sizes and styles of terminal blocks in addition to these stackable screw terminal blocks; the picture below shows a side-by-side comparison:

Side-by-side comparison of our different terminal blocks with a 0.1″ male header strip for size reference. From left to right: 0.1″ screwless, 0.1″ screw, 3.5 mm screw, and 5 mm screw.

Alternatives available with variations in these parameter(s): pins spacing orientation Select variant…

  • 0.1″ screw terminal, which can be used in place of standard 0.1″male and female headers on many PCBs; the only available orientation is side-entry:

Alternatives available with variations in these parameter(s): pins Select variant…

People often buy this product together with:

Screw Terminal Block: 3-Pin, 5 mm Pitch, Top Entry (4-Pack) Screw Terminal Block: 3-Pin, 5 mm Pitch, Top Entry (4-Pack)
Screw Terminal Block: 2-Pin, 3.5 mm Pitch, Side Entry (4-Pack) Screw Terminal Block: 2-Pin, 3.5 mm Pitch, Side Entry (4-Pack)
Screw Terminal Block: 3-Pin, 3.5 mm Pitch, Side Entry (4-Pack) Screw Terminal Block: 3-Pin, 3.5 mm Pitch, Side Entry (4-Pack)

Related Products

Screw Terminal Block: 2-Pin, 5 mm Pitch, Side Entry (4-Pack)
Screw Terminal Block: 2-Pin, 5 mm Pitch, Top Entry (4-Pack)
Screw Terminal Block: 2-Pin, 3.5 mm Pitch, Side Entry (4-Pack)
Screw Terminal Block: 2-Pin, 3.5 mm Pitch, Top Entry (4-Pack)
Screw Terminal Block: 2-Pin, 0.1″ Pitch, Side Entry (4-Pack)
Screwless Terminal Block: 2-Pin, 0.1″ Pitch, Side Entry (3-Pack)
Screwless Terminal Block: 2-Pin, 0.1″ Pitch, Top Entry (3-Pack)
Screwless Terminal Block: 2-Pin, 0.2″ Pitch, Side Entry (3-Pack)
Screwless Terminal Block: 2-Pin, 0.2″ Pitch, Top Entry (3-Pack)
Wire Stripper 20-30 AWG Solid (22-32 AWG Stranded)
Wire Stripper 10-20 AWG Solid (12-22 AWG Stranded)

Related Categories

Stackable Screw Terminal Blocks
Screwless Terminal Blocks
0.1″ (2.54 mm) Screw Terminal Blocks
Connectors
Cables and Wire
Electronics Prototyping
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