
Secure 40-way IDC PCB header from 3M. Features locking lugs & ejectors for reliable ribbon cable connections in electronics.
The 3M 40-Way IDC Header with Locking Lugs is a premium-quality PCB connector designed for secure and reliable ribbon cable connections. Its shrouded design and integrated locking lugs provide exceptional mechanical stability, ensuring the header remains firmly mated to its corresponding socket even in demanding applications. This robust construction is essential for maintaining the integrity of high pole count connections, preventing accidental disconnections that could lead to system failure or data loss.
Featuring convenient latching ejectors, this header allows for easy insertion and removal of the 40-way ribbon socket, facilitating maintenance and assembly without damaging the delicate pins. The IDC (Insulation Displacement Contact) technology enables quick, solderless terminations, streamlining the wiring process and ensuring consistent electrical performance. Engineered by 3M, a leader in connectivity solutions, this component is manufactured to exacting standards for durability and long-term reliability in industrial, commercial, and electronic prototyping environments.
Its compact form factor and robust latching mechanism make it an ideal choice for internal computer wiring, data acquisition systems, telecommunications equipment, and any application where a dependable multi-pin connection is critical. By choosing this 3M header, you are investing in a component that prioritises connection security, ease of use, and enduring performance.
Need larger quantities? Need additional quantities? Get in touch and we'll arrange it for you.

Always follow local regulations and product guidance.
Free standard delivery on US mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For defective items, contact us within 14 days for a replacement or refund.
View Full Delivery & Returns PolicyWe take the utmost care with your payment and personal details. Our website uses advanced encryption technology, including Secure Sockets Layer (SSL), to protect your information during transmission. You can verify a secure connection by looking for 'https' and a locked padlock in your browser.
Cookies enhance your shopping experience by keeping track of your cart and remembering you when you return. We also use banner advertising based on your browsing history to present products of potential interest.
Beware of phishing scams! We will never ask for personal details via email. If such information is required, we'll ask you to contact us by phone. If you receive an email requesting sensitive information, do not respond and let us know immediately.