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Modular Connectors

When you break apart most large and complex creations, you’re left with an assortment of simpler parts. This concept is central to the idea of modular design, which uses standardized parts (or independent units) to build a more complicated structure. Modular design is common in a variety of products ranging from furniture to software to electronics.

Modular Connectors Defined

In the world of high-reliability connectors, the term “modular” identifies a family of connectors that can be tailored to a customer’s goals within some defined product parameters and limitations. For instance, the customer can build the contact arrangement from pre-existing building blocks to most closely match their application’s requirements. Modular connectors are not all created alike, but they can be divided into four major types. They are as follows:

  • Type 1: Fixed-envelope / factory-assembled
  • Type 2: Fixed-envelope / user-assembled
  • Type 3: Expandable-envelope / factory-assembled
  • Type 4: Expandable-envelope / user-assembled


Positronic offers both Type 1 and Type 3 modular connectors as defined above.

  • Type 1: Great Golden
  • Type 3: Scorpion and Low-Profile Scorpion

modular connectors
Because of its modularity, the Scorpion (which can be used as a power connector, a signal connector, or a hybrid of the two) is one of the most versatile connectors on the market. It has optional features such as PosiBand closed entry contacts, multiple power contact sizes, extreme blind mating capability, sequential mating, venting, press-fit PCB terminations, and a variety of accessories. The Low-Profile Scorpion offers similar features to its larger cousin, but in a more streamlined package. Finally, the Great Golden, a Type 1 modular connector, is a connector powerhouse. It is capable of producing up to 800 amps in a current dense 118mm-wide housing. The customer can choose one of five modules for each of the four insert positions.

Modular connectors like the Scorpion and Great Golden allow design engineers to achieve their ideal size, weight, and power (SWaP) combination by configuring these products to their liking. Be sure to check out these effective, versatile connectors from Positronic.