Walfront 40P2RRA 2.54mm Pin Header for PCB

Description

Product Overview

The Walfront 40P2RRA pin header is engineered for precision and durability in demanding electronic assemblies. Measuring 1.97 x 0.79 x 0.24 inches and weighing only 0.71 ounces, this lightweight component fits seamlessly onto dense PCB layouts without adding bulk. Each header features a 2.54mm (0.100 inch) pin spacing, the industry‑standard pitch that aligns perfectly with Raspberry Pi GPIO pins, Arduino shields, and typical breadboard rows. Constructed from high‑quality copper alloy with a gold‑plated finish, the contacts deliver low resistance and excellent corrosion resistance, ensuring a stable electric current and reliable signal transmission over the product’s lifespan. The model number 40P-2R-RA reflects its 40‑pin, dual‑row configuration, making it suitable for both single‑sided and double‑sided board designs. Certified by Walfront, a reputable manufacturer in the industrial and scientific sector, the header holds a strong sales rank in the fiber optic connector category, underscoring its popularity among engineers.

Usage

Designed for versatility, the Walfront 40P2RRA pin header excels in a variety of environments. Hobbyists building Raspberry Pi projects will appreciate the exact 2.54mm pitch that matches the Pi’s GPIO layout, enabling rapid prototyping of sensors, motor controllers, and custom HATs. In academic labs, the header serves as a reliable interface for data acquisition boards, allowing students to connect measurement modules without soldering fatigue. Professional engineers integrating the header into industrial control panels benefit from its robust construction, which tolerates repeated insertions and removals in high‑vibration settings. The low profile also makes it ideal for compact enclosures where space is at a premium, such as wearable devices or IoT gateways. Whether you are assembling a breadboard prototype, mounting a PCB into a metal chassis, or designing a modular system for field deployment, this connector provides a secure, low‑impedance pathway for power and signals.

Why Choose Us

Walfront’s commitment to quality is reflected in every aspect of the 40P2RRA pin header. Each unit undergoes rigorous testing for pin alignment, solderability, and electrical continuity, guaranteeing that you receive a component that meets exacting industry standards. The gold‑plated contacts reduce oxidation risk, extending the usable life of the header even in humid or corrosive environments. Our manufacturing process incorporates precision stamping and automated inspection, which eliminates the variability often seen in generic connectors. Additionally, the product is backed by a responsive customer support team that can assist with technical specifications, compatibility questions, and bulk order logistics. Choosing Walfront means you receive a dependable part that integrates smoothly into your design workflow, minimizes rework, and supports long‑term reliability.

Key Features

• Standard 2.54mm pitch ensures compatibility with Raspberry Pi, Arduino and breadboard systems.
• Gold‑plated copper contacts provide low resistance and superior corrosion resistance.
• Compact 40‑pin dual‑row layout fits tight PCB spaces while delivering robust mechanical support.
• Lightweight design (0.71 oz) reduces overall device weight for portable applications.
• Extensively tested for durability, guaranteeing reliable performance in industrial and hobbyist projects.

FAQ

What is the maximum current rating per pin?

The Walfront 40P2RRA pin header is rated for up to 1 A continuous current per pin, which is sufficient for most low‑power sensor and control line applications.

Can this header be soldered on both sides of a double‑sided PCB?

Yes, the dual‑row configuration is designed for through‑hole mounting on either side of a double‑sided board, allowing flexible routing and component placement.

Is the header compatible with 5 V and 3.3 V logic levels?

Absolutely. The header’s material and plating support both 5 V and 3.3 V logic, making it suitable for a wide range of microcontroller and FPGA platforms.

How does the gold plating affect long‑term reliability?

Gold plating prevents oxidation and maintains low contact resistance over time, especially in environments with high humidity or temperature fluctuations.

What packaging options are available for bulk orders?

Walfront offers anti‑static bags, bulk reels, and custom packaging solutions to meet the needs of large‑scale manufacturing and inventory management.