Core Series Circular Connectors
for the Military and Test Industry

High-Performance Circular Connectors are Widely Used in the Various Range of Applications.

Advanced Circular Connectors Solution

INTE-AUTO has been designing and producing circular connectors since 2013. To meet the highest core series circular connector quality standard, all of our circular connector parts are made of brass, processed by precision CNC machines, contacts plated gold and outfitted with a luxurious shell pearl or black chrome plated.

You have multiple circular connectors out shell size choices from 102, 103, 1031, 104, and 105 series with a range of 2 to 37 pins. The quality of our circular connectors is attested by different industry certifying bodies as well as the many positive reviews by our customers.

Throughout the years, INTE-AUTO has continuously developed and refined our production process and management approach. Make INTE-AUTO your premier supplier and watch your business soar.

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fischer circular connector plug 102 103 104 105

Male Circular Connector

INT-S is a male circular connector type with 2 to 37 pins and outshell sizes from our 102 to 105 series.

fischer circular connector plug

SC type Circular Connector

INT-SC is a self-latching male plug circular connector with a half-shell key design and a nut for cable bend relief.

Fischer Straight circular plug connector S102 103 1031 104 105

Male Plug with Black Chrome

INTE-AUTO, not only offers pearl chrome-plated connectors but also supplies black chrome-plated connectors. A customized solution is available here.

circular connector female contacts

Circular Plug with Female Contacts

The INT-S type plug fits female contacts precisely for accuracy no matter your required application. The INTE-AUTO team provides you full technical support with a fast lead time.

circular connector plug with female contacts

Male Connector with Female Contacts

INT-SC is a circular connector plug type with female contacts, and a protective nut for cable strain relief design.

male overmolded circular connectors

Pearl Chrome Overmolded Circular Connector

INT-SS type is an over-molded circular connector with a pearl chrome-plated out shell and gold-plated contacts.

overmolded circular connector black chrome

Black Chrome Overmolded Circular Connector

INT-SS is a precision male circular connector processed through over-mold injection and is widely used for military equipment.

Fischer 90 degree plug WSO102 103 104 105 pearl chrome

Pearl Chrome Right Angle Circular Connector

INT-WSO is a right angle male cable connector with a stand nut, pearl chrome plated, available size from 102 series to 105 series.

fischer right angle WSO plug black chrome

90-degree Circular Plug with Black Chrome

INTE-AUTO helps customers to make black chrome plugs, it could be compatible with WSO102, 103, 104, 105 series connectors well.

Get Your Circular Connectors Solution Now

High End Circular Connector with Half-Shell Code Design

The Core/F Series are precision connectors that have undergone strict quality inspection and scientific management. These are smart circular connectors made by INTE-AUTO, a leading manufacturer in China.

The Core series circular connector is typically used for high-precision wind power sensors, robots, industrial design products, and military equipment.

Since the company won the government contract to supply circular connectors for the Chinese army, INTE-AUTO has stepped up their inspection by setting up a professional state-designated product testing laboratory where each connector must pass rigorous military standards and tests.

This has resulted in the safest circular connectors applicable even for your project. It has a push pull self-latching system design with a half-shell code to prevent mismatching.

Female Circular Connectors

front panel mount circular connectors

D type Female Circular Connectors

INT-D is a fixed receptacle in circular connector ranges. It can be mounted on the panel. Multi pins from 2 to 37 pins

back panel mount circular connector types

Rear Panel Mount Circular Connector

INT-DBP is a rear panel mount female circular connectors, black chrome plated for military application.

IP68 panel mount circular connector DEE type

Back Panel Mount Circular Connector

INT-DEE has type “A” standard polarity to avoid mismatching. Size from 102 to 104 series are in stock.

cable mount circular connector K type

Cable Mount Circular Connector

INT-K(Z) is a cable-mounted female circular connector in the Core Series, with a nut fit for cable bend relief.

cable mount circular connector female

Female Cable Circular Connector

INT-K is a female cable circular connector, also called “free receptacle” and “cable mount receptacle”.

dust cap for fischer circular connector

Dust Cap for Male Circular Connector

Available 0F 1F 1.5F 2F 3F series dust cover cap for Fischer Connectors, It can be reached IP50 and IP68.

circular connector dust caps

Dust Cap for Female Circular Connector

A rugged metal shell dust cap is used for protection of the unmated circular connectors in the field.

Manufacturing and Technical Details


Most frequent questions and answers

INTE-AUTO Circular Connectors are cylindrical, multi-pin electrical connectors with a push pull self-latching connection system design. They contain solder and PCB contacts and are used on electrical power devices to send data or electrical signals.

They are built with the specific purpose of withstanding, bearing, and coping with harsh conditions while flawlessly delivering data, signal, or power. They are a vastly-used product in industries and laboratories with their varying designs and applications.

Design original push pull self-latching connection system
Multipin 2 to 37 contacts
Available M9 M12 M14 M15 M18 sizes
Half-shell coding for matching
Pearl or black chrome-plated out shell
Endurance: > 5000 mating cycles.
IP50 IP66 IP67 IP68 degree
Over-molded injection and custom cable assembly

INTE-AUTO’s circular push pull interface and housing make it easy to connect and disconnect the device. The simple system allows the cable to seamlessly send signal, power, and current. The connector has a brass outshell implanted in the insulation material to help maintain alignment.

The connector has low-voltage contact and is tough, rigid, and versatile. It is well-suited for application in any industry– be it medicine, energy, communications, broadcasting, or others. The circular connector works equally well whether in a damp or dry environment.

When you need to transfer data, current, or signals between two devices, you must need a medium like a wire and a connector that should connect these two devices.

The push pull circular connectors have two external parts called plug and receptacle that allow your data to transfer between the two devices.

The receptacle is connected with the device, and the plug is connected with the cable that is connecting the two devices to make a closed data transferring path.

So the main use of push pull circular connectors is to transfer data, current, or signals between any two electronic devices.

They are efficiently used in defense and security, instrumentation, medical fields, electronics, broadcast, communication systems, aerospace, industries, transportation, and robotics.

fischer circular connectors

Figure 1 Push Pull Circular Connector

You don’t have to suffer energy, data, power, or signal loss. The circular connector design push pull self-locking circular mechanism is reliable and straightforward.

These circular connectors are cost-effective also. After it was designed by the famous brand in the 1950s, it is now almost used in every industry due to its versatility. There’s no sector where the push-pull circular connector isn’t workable.

It allows simple operations, and one has almost nothing to worry about. You can install it once and then use it for long periods. It is easy to maintain and use. The circular connector puts an end to the difficult user manuals as it is directly operatable.

Its design makes it suitable for usage as a fast push-pull self-latching connectivity solution. It creates connectivity quickly for you while being robust, sturdy, and durable. Circular connectors are easy to handle and are space-saving as well. It maintains a streamlined shape, so the aesthetics of the device aren’t affected.

They are designed to have the most lifespan at least 6000 times, so you don’t need to replace them now and then. Despite using it for years, their connectivity resistance remains the same.

The circular connectors can be used in rugged, harsh, challenging conditions. It is modified to be tough and rigid. You would not have to worry about changing your circular connectors more often.

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