Connectors 101

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Connectors are essential components in various electrical systems and play a crucial role in adequately functioning many devices and equipment. At, we understand the frustration of dealing with broken wires or bad connectors. We offer a wide range of connectors, terminals, accessories, and kits to help customers find the right parts they need quickly and easily.

This blog series will discuss different types of connectors and their various uses, helping you make an informed decision when ordering parts for your equipment. All your connector needs are covered, from Amphenol Sine to AMP CPC (CPC connector kits, too!) and AMPSEAL in this post.

How to pick the connector for you?

Connectors come in a wide range of shapes, sizes, and materials. They can be made from plastic, metal, and even fiber-optic materials. Some of the most common types of connectors include circular, rectangular, D-subminiature, and fiber-optic. Each connector type has unique features and benefits that make it ideal for specific applications. For example, circular connectors are commonly used in harsh industrial environments because they withstand high stress and vibration levels.

One of the most important factors to consider when choosing a connector is its protection rating. Protection ratings measure a connector’s ability to protect against environmental factors such as water, dust, and vibration. For example, an IP67-rated connector can withstand being submerged in water for up to 30 minutes, while an IP68-rated connector can be immersed in water for extended periods. Choosing a connector with a protection rating appropriate for the environment in which it will be used is essential.

Another factor to consider when choosing a connector is its locking mechanism. Locking mechanisms secure the connector and prevent it from coming loose during use. Some of the most common locking mechanisms include bayonet locks, screw locks, and push-pull locks. The type of locking mechanism you choose will depend on the application and the amount of force applied to the connector. For example, screw locks are ideal for applications with high vibration levels, while push-pull locks are ideal for applications with quick and easy connections.

When it comes to connecting data, fiber-optic connectors are the way to go. Fiber-optic connectors provide high-speed data transmission with low signal loss and are ideal for use in harsh industrial environments. They are also highly immune to electromagnetic interference, making them ideal for sensitive electronic systems.

When it comes to power transmission, circular connectors are a popular choice. They are commonly used in automotive, industrial, and telecommunication applications. Circular connectors are available in many sizes, from tiny micro-miniature connectors to large power connectors. They offer high reliability and can withstand harsh environmental conditions. Additionally, they can transmit high-power levels, making them ideal for use in applications such as electric vehicles.

Rectangular connectors, also known as D-sub connectors, are commonly used in computing and telecommunication applications. They offer high reliability and are available in a wide range of sizes. They are also available in both male and female configurations, making them easy to use in various applications.

Connectors are essential in connecting electrical components and devices and transmitting power and data. When choosing a connector, it’s essential to consider factors such as protection ratings, locking mechanisms, and the type of material the connector is made from. Whether you need to connect data, power, or both, a connector is available that is perfect for your needs. So, next time you need a connector, remember the information you learned in this blog post and make an informed decision about the connector you choose.

Visit our Connector Store to find the right parts for your equipment.

We have tried our best to make our best to design our connector store to be 3 things:

  1. Easy to use with built-in filters
  2. Quality pictures so you can find the right thing
  3. Have ample information to give you peace of mind that you have found what you are looking for.

We, just like you, have searched for these same items for years and struggled to find out what we need and what these are.  Now good or bad, we are all “self-taught” or have learned these from “The School of Hard Knocks”.   The good side is that we can understand a little bit easier when you as for the “diddy-bop” or “whatchamacallit”.  We have been there.

A quick overview of our connector store if you would like to go and do a little research, you may find something and give it the ole “hey! that’s what I was looking for last week!”  At least we hope so!

We have all of our connectors, terminals, accessories & kits all in one place on our main menu for you to search with ease.

From our main menu, you can choose -> Connector Store -> select a brand

Selecting a connector brand:


Amphenol Sine (A – Series & Duramate – Series)

Amphenol Sine connectors are compatible with Deutsch connectors and are manufactured by Amphenol Sine. The two series found on are the A-Series and the Duramate-Series. These connectors are interchangeable with Deutsch DT Series connectors, HDP20 Series & HD30 Series, making them a versatile option for your equipment.




AMP Circular Plastic Connector or AMP CPC

Connector Body 206037-2AMP AMP Circular Connectors for Commercial Signal & Power Applications

Available in 9 Different Series:  Series 1, Series 2, Series 3, Series 4, Series 5, Series 6, Mil-C-5015, Metal-Shell CPC Connectors and Miniature CPC Connectors

Recommended to add Double-Wall Heat Shrink to seal the connectors from drip and leaking.

On the other hand, AMP CPC connectors are circular plastic connectors that come in nine different series, including Series 1, 2, 3, 4, 5, 6, Mil-C-5015, Metal-Shell CPC Connectors, and Miniature CPC Connectors. These connectors are used in agriculture for planter harnesses, CANBUS cables, power cables, and power-signal combinations. To find the suitable AMP CPC connector, you need to identify the type of contacts it takes, if it takes pins or sockets, the locking type (locking ring or threads), and the number of circuits it has.

Common use in agriculture: (not limited to:)  Planter harnesses, CANBUS Cables, Power Cables, Power-Signal combination.  Popular with brands:  Ag Leader, Kinze, John Deere, Raven, Dickey-John and others.



776273-1 AMPSEAL products can be utilized in the truck, bus, construction, agriculture, special, marine and two-wheeler vehicle industries.  One great thing about the AMPSEAL connectors, they have protection rating of IP6K9K.  (See more on ratings later)  There are no special backshells required for AMPSEAL connectors.  Terminals are economical and easy to insert.  The connectors are designed to carry signal or low-voltage.  There is an amperage rating of 8-17 amps depending on the type of terminal. 

AMPSEAL connectors are popular in trucking, construction, agriculture, marine, and two-wheeler vehicles. They have an IP6K9K protection rating and don’t require special backshells, making them a durable and reliable option for your equipment.

Common use in agriculture: (not limited to) Novatel, Raven & Ag Leader GPS Receivers.




The AMPSEAL 16 connector system is targeted for off-road, heavy duty industrial, recreational and agricultural applications. This wire-to-wire and wire-to-device connector line was designed to meet the rigorous demands of an industry that requires the highest standards in performance.  Connectors are a fully assembled connector, no need for extra backshell protection or Terminal Position Assurance (TPA) and Connector Position Assurance (CPA) locking system.

Contacts/Terminals are a size 16 contact and are interchangeable with the Deutsch DT Series size 16 terminals and Amphenol-Sine A Series size 16 terminals.

The AMPSEAL 16 connection is an ideal connector substitution for the Deutsch product line in terms of seal ability and durability.  Ideal connector for: Trucks, Bus, Construction, Agriculture and every other high durability & endurance situation.  Available in: 2, 3, 4, 6, 8, and 12 circuit configuration.

Common use in the agriculture industry: (not limited to:) John Deere, Ag Leader, Raven, Case IH, New Holland, ISOBUS


AMP Mate-n-Lock


AMP Mate-N-Lock 5.0 mm Power Key Connectors are for power circuits of home appliances, especially targeting gas appliances. The connector features four kinds of keying per housing.  Connectors are available in configurations of: 2, 3, 4, 6 contacts in a Single Row connectors.  Also available in 4 & 6 contacts in a 2 Row configuration.

Connector colors identify the polarizing keys.  Available in Natural(white), Red, Blue & Yellow.

AMP Mate-N-Lock series technical specifications:  300 VAC, Current rating of 10 amp max and handles 24-16 awg wire.

Extra locks are available but not mandatory.

Common use in the agriculture industry: (not limited to:) Wire to board, controller circuit wiring

In the next issue, we’ll continue on with the rest of our connector manufacturers available in our Connector Store shown below.  If you want learn more and stay up to date, be sure to subscribe!

Now, are these all of the connectors that are out there?  No.  Are these all the connectors that you will use on your farm, home, automotive, marine, or outdoor vehicles?  Again, no.  Are these the only types of connectors & terminals that we stock or will ever carry?  I think you get the pattern here, but just in case… No.  We try our best to post correct and accurate information on each product.  However, in case you were wondering, we are human.  Therefore, humans make mistakes, unfortunately, and we try to correct those as we see them.  If you see something wrong on a product, let us know!


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