PCB terminal blocks, or printed circuit board terminal blocks, are insulted devises that secure two or more wires together and mount onto printed circuit boards (PCBs). The devises are modular in shape. Electrical connections are made with screw and spring clamps, insulation displacement and tab terminals. The terminal blocks are usually mounted onto PCBs horizontally, vertically, or at a 45 degree angle.

Important performance standards to remember when considering PCB terminal blocks are voltage rating, current rating, and operating temperature. You may also want to consider the number of contacts, contact pitch and conductor size. You must access the termination options of PCB terminal blocks to ensure you choose the correct type. To select the PCB terminal block that fits your needs, consider the following:

1. Screw clamps can be used with fuse holders, electronic component holders, signal conditioning modules, as well as surge protection modules among other devises.

2. Spring clamps are best for top-entry connections and small wire applications. Spring clamps are not as popular as screw clamps.

3. For more specialized needs you may consider insulation displacement connections or tab terminals, also known as spade or blade terminals.

Action Steps
The best contacts and resources to help you get it done

Request sample PCB terminal blocks before purchasing

Working with PCB Terminal Blocks requires the use of the appropriate type to ensure the job is correctly completed. If you are unsure about the exact type of PCB terminal block your business requires, request a sample and check it out before purchasing any products.

I recommend: Check out the products at EuroComp, where you can browse PCB terminal blocks, as well as, request quotes and samples before making your final purchasing decision. You may also consider Curtis Industries, where you can browse products and make a request for engineered samples that meet your specifications.

Purchase PCB terminal blocks online

Ensure that your business finds the appropriate PCB terminal block by browsing through a directory of manufacturers that are ready to meet your needs. Look at websites that provide users not only with a list of suppliers and sellers but also with comments, recommendations, and ratings to gain a better understanding of the company you are purchasing from and the products it produces.

I recommend: View a list of PCB terminal block manufacturers, distributors, and service companies at ThomasNet, an industrial destination website where you can take advantage of company profiles and catalogs, company comparisons, and communication with colleagues and companies. Also check out the PCB terminal blocks at OKW Electronics, which features Camden products online to be sold in the US and Canada.

Purchase PCB terminal block accessories online

Whether you are starting from scratch or know exactly what you are looking for, purchasing PCB terminal block accessories is often necessary. To make sure your business has everything you need, browse product directories and buy online to save time.

I recommend: Purchase PCB terminal block accessories at Automation Systems Interconnect, an international manufacturer and supplier of electrical and electronic components used in automation applications. You may also be interested in On-line Electronics, a specialty-stocking distributor of terminals and accessories that offers value-added design, production, stocking, and delivery solutions for your business.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  While there are many manufacturers and suppliers of PCB terminal blocks on the web, make sure you read consumer and product reviews to guarantee you choose the appropriate company before purchasing terminal blocks, accessories, and tools. Different companies have different order, delivery, and customer service accommodations that may or may not be what your business is looking for.