What is 2.54 mm pitch connector?

Understanding 2.54 mm Pitch Connectors

The 2.54 mm pitch connector, often referred to within the electronics industry, highlights the distance between the centers of adjacent pins or contacts in a row, which is specifically 2.54 mm. This standard pitch size is widely recognized and serves various applications in electronic devices. According to Google search results, the 2.54 mm pitch is a common standard for connectors used in breadboards and prototyping.

What does pitch mean in connectors?

Pitch in connectors refers to the spacing between the centers of two adjacent pins or contacts in a row, where the size A in illustrations represents the pitch of the connector.

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Single Row Connector

Dual Row Connector

The pitch characteristic is vital for connectors. The 2.54 mm pitch signifies that the distance between the centers of two neighboring pins or contacts in the same row measures exactly 2.54 mm.

Typical connector pitches additionally include various sizes like 0.5 mm, 1.0 mm, 1.25 mm, 1.5 mm, 2.0 mm, and 3.0 mm.

How do you measure pitch on JST connectors?

Measuring the pitch of connectors can be done effectively using a vernier caliper.

It can be challenging to gauge the distance between the centers of two adjoining circuits in the same row accurately, particularly when positioning the caliper jaws precisely. However, measuring the pitch of a connector does not strictly require centering measurements.

Let’s explore the process!

Measure the pitch of a connector housing.

For connectors in housing, instead of measuring the center points, you can gauge the edges on the same side of the two holes. For example, measure B instead of A, as in the provided illustration. Here, B equals A, revealing B as the pitch of the connector housing.

If dealing with a connector housing that holds multiple circuits, you may measure the distance between the two farthest circuits (represented as size C in the illustration) and divide this by (number of circuits - 1). For instance, with a 6-circuit connector housing, divide C by 5 to attain the connector housing's pitch.

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Measure the pitch of a connector header.

To measure a connector header, consider the outer size of two neighboring contacts and subtract the contact's width. For example, in the respective illustration, the pitch can be calculated as B minus W (pitch = B - W).

For smaller connectors with multiple circuits, measure the span of the total number of contacts, subtract the contact width, and divide by [number of contacts - 1].

For instance, if the connector header shows pitch as (C-W)/4.

Why is Pitch Important in Connectors?

Understanding the Connector Pitch

The main significance of a connector's pitch comes down to its dimensional accuracy, which affects compatibility with wires and cables. Understanding pitch ensures the successful use of connectors, helping avoid issues during assembly or installation caused by mismatches.

Common connectors often associated with pitch sizes include:

• 0.1 inches = 2.54 mm (ideal for breadboards)
• 0.05 inches = 1.27 mm

There exists a variety of pitches ranging from larger to smaller measurements:

• 1.20 mm
• 1.25 mm
• 1.50 mm
• 6 mm
• 10 mm
• 0.3 in
• 0.4 in

Connector Support from Quadrangle

Quadrangle is dedicated to supporting popular connectors utilized across various industry components and peripherals. Regular updates to our connector and crimp/terminal inventory are commonplace. Occasionally, we can accommodate new connectors using existing tooling and equipment. To verify this, purchasing sample crimps in REEL FORM (for semi-automated devices) for testing may be necessary. While Quadrangle welcomes this process, customers can also expedite it by consulting with our engineers first (providing a specification sheet). Once confirmed, customers may supply the crimps for testing (only in REEL FORM). Supplying material often streamlines this process, allowing efficient verification if we can support upcoming cable projects with a new connector series.

Contact Quadrangle Products Regarding Connectors

Reach out to learn how we can meet your cable needs. At Quadrangle, our engineers also serve as our sales team. You will engage directly with our Application Engineers to navigate seamlessly through the entirety of your cable requirements, inclusive of personalized quotes. This approach delivers an exceptional customer experience from concept development to a complete solution.

Uncertain? There’s no need to be! Many of our clients are unfamiliar with the cable procurement process. Our engineering/sales support comes at no cost! We simplify the entire experience encompassing your design and requirements, beginning with our tailored quote, continuing through purchase, and providing ongoing support throughout the product's lifecycle — assuring you and your organization that we aim to be an invaluable resource. We strive to eliminate confusion and ensure a straightforward process, resulting in a product that aligns with your satisfaction.

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