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

SKU: POLOLU-2446 Brand: Pololu

These top-entry screw terminal blocks have a pitch of 3.5 mm (0.138″). Each block has two 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.

$3.30 AUD, inc GST

$3.00 AUD, exc GST

Available with a lead time
Expect dispatch between Dec 31 and Jan 03

Quantity Discounts:

10-25 $2.88 (exc GST)
25+ $2.79 (exc GST)

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 Pololu's boards:

Details for item #2446

This product is a four-pack of 3.5mm-pitch, two-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 mO
Wire gauge: 24-18 AWG
Wire strip length: 5 mm

Other terminal block options

Pololu 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 Pololu's 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.

Screwless (spring) terminal, available in side- and top-entry orientations with pitches of 0.1" and 0.2":

Alternatives available with variations in these parameter(s):pins spacing orientationSelect 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):pinsSelect variant…

People often buy this product together with:

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: 3-Pin, 3.5 mm Pitch, Side Entry (4-Pack)

Dimensions

Pins:	2
Spacing:	3.5 mm

General specifications

Wire gauge:	24-18 AWG
Current rating:	10 A¹
Voltage rating:	125 V¹
Contact resistance:	20 mO
Wire strip length:	5 mm
Terminal type:	screw
Orientation:	top entry

Notes:

1: UL rating.

Product Comments

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