How to Choose the Right Electrical Connectors

3 min read

Connectors are connecting components used in electronics and communications devices to transmit power and signals. They allow precision instruments and small electronic components that cannot be directly soldered to be powered safely and efficiently. Connectors that join devices to devices include LAN cables, conversion adapters, coaxial, rectangular, and those used for wiring inside of machinery like board-to-board connectors and IC sockets.

MISUMI offers an endless variety of electrical connectors from trusted manufacturers that ensure optimal operational performance and increased system longevity. There are several criteria to consider when choosing connector components.

What are your connector characteristics?

1 – Current Rating – Amps per circuit- a measure of the amount of current that can be passed through the mated terminal.

2 – Connector Size – Number of Circuits per square inch AKA Circuit Density – number of contacts to carry the power demands of your application.

3 – Wire Size- Wire Gauge – important in instances when the current rating is near the maximum for the chosen connector family.

4 – Signal Type- analog, digital, or a combination – impacts the connector type, pinout, and wiring.

5 – Operating Voltage- ranges 250V – 600V, RMS values, AC and DC- Measure of the amount of current that can flow through the mating terminal and is stated in amps per circuit.

6 – Space Constraints & Engagement Force – Determines the size and weight of terminal connectors in accordance with the space available to them. Consider the frequency of connecting, disconnecting, and ability to connect the two halves in difficult-to-reach areas or the degree of stress to which the connectors are subjected.

7 – Environmental and Temperature Range – Electrical connectors are often used in extreme conditions such as High temperature, vibration, shock, dust, or liquids.  Some connectors feature environmental sealing options that can protect against breakage in harsh washdown measures used in medical and food applications.

8 – Housing and Terminal Materials, Plating – Most electrical connectors are made of Nylon Plastic because of their lightweight high durability, and resistance to flammability.   

9 – Cost, Availability, and Manufacturer – MISUMI offers electrical connectors from top brand manufacturers such as Murrelektronik, Binder, Monoprice, Nanaboshi, Takachi, Molex, DDK, JST, Weidmuller, and MISUMI.  Due to our buying power, marketplace strength, and existing relationships with worldwide distributors we can offer very competitive pricing to save your company money and time.

BONUS! 10 – Configure, Quote, and Order- Log on to MISUMI’s website to view our extensive inventory and product choices. Each application for electrical connectors is unique due to design, functionality, and cost constraints. MISUMI makes it easy to configure, quote and order the correct Electrical Connector or Connector Accessory for your discerning requirements.  

If you need additional electrical support, please contact our team at

About the Author

Pete Oleinik

Pete works as a Technical Sales Analyst for the Electronics department at MISUMI. He has over 35 years of experience in the manufacturing, automation, and telecommunications industry, and is not only familiar with electronic components but servo motors and machine tools as well.

2 thoughts on “How to Choose the Right Electrical Connectors

  1. This is something great information you have shared with the readers. Thanks for sharing explanatory information about electrical connectors, and their features. This is a nice write-up article.

Leave a Reply

Your email address will not be published.


You may also like these