How do circular connectors work?

Circular connectors transmit signals, data, or power between devices through multiple conductive contact pins arranged in a circular pattern. They ensure reliable connection through locking structures (thread, bayonet, push-pull) and environmental sealing to resist dust, water, and vibration.

Do you support OEM/ODM customization?

Yes. We offer complete OEM/ODM customization, including:Pin configuration,Cable length & material (PVC/PUR/Shielded),Shell material (metal/plastic),Waterproof rating (IP67/IP68),Shielding & EMC requirements,Special structure design according to customer applications.

What certifications do your products have?

CE / RoHS,IP67 / IP68 Waterproof test,EMC shielding test,ISO 9001 factory system certified.

M5 Aviation Plug Flange Mount PCB Waterproof Connector 3 4 Pin

Name: M5 Aviation Plug Flange Mount PCB Waterproof Connector 3 4 Pin
Brand: Shenzhen Sta Electronic Co., Ltd
SKU: 2113506002

Guangdong, ChinaShenzhen Sta Electronic Co., Ltd

US$1.40

1 Piece

Product specifications

Connector

Product profile

Customization

Available

Interface Type

Male Female

Operating Frequency

High Frequency

Model NO.

M5 PCB Socket

Gender

Male Female

Certification

RoHS, CE, ISO9001, UL

Application

Power

Contact Resistance

3.8mΩ

Contact Material

Brass/Phosphorus Copper Gold-Plated

Surface Treatment

Brass/Phosphorus Copper Gold-Plated

Housing

Brass Nickel-Plated/Zinc Alloy Nickel-Plated

Terminal Material

Copper Galvanized

3 4 Pin

Rated Current

Feature

Shield/ Unshield

Waterproof Grade

IP67

Insulation Impedance

≥100MΩ

Durability

More Than 500 Cycles

Applicable Temperature

-25ºC~+80ºC

Insulator Material

PA+GF/TPU

Housing Material

Brass Nikel Plated

Molding Material

TPU/PVC

Rated Voltage

60V

Contact Impedance

≤3MΩ

Waterproof Level

IP65/ IP67

Socket

PCB, Front Mount Solder Type, Back Mount Solder

Transport Package

PE Bag/Paper Box

Specification

Length 1M 2M 3M

Trademark

STA

Origin

China

Production Capacity

50000piece/Year

Key features

The STA M5 PCB socket is a compact and high-performance connector designed for direct mounting on printed circuit boards.

Available in 3-pin and 4-pin male and female configurations, it supports both front and back panel installation, providing flexible design options for various devices.

With an IP67-rated sealing structure and gold-plated contacts, this M5 connector socket ensures stable signal transmission and excellent durability.

Ideal for industrial automation, sensors, and measurement instruments, it offers reliable connectivity in compact electronic assemblies.

Company profile

Importers and ExportersFlexible CustomizationQuality Assurance

Shenzhen Sta Electronic Co., Ltd

Guangdong, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableNearest Port: ShenzhenAverage Response Time: ≤5.67hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CIF, DAP, DDP

AI-Powered supplier vetting

SummaryThe supplier operates in electronic component development and sales, with import/export authorization and 16 years of export experience. It offers broad customization and OEM services for well-known brands, maintains inventory capability, and reports quality assurance, two production lines, and lead times within 15 workdays in both peak and off-peak seasons. However, no management-system certification, written complaint-handling or corrective-action procedures, overseas agents, overseas warehouses, overseas showrooms, or offline trade-show participation are reported. Financial credibility cannot be reliably established because the supplied financial records show zero values for revenue, costs, profit, margins, and current ratios. Innovation resources appear limited, with one R&D engineer and no available SDK.

CertificationsThe supplier reports no certification for management systems and no approved supplier list. Although quality assurance is stated to exist, the absence of reported management-system certification means certification holding is not demonstrated.

After-Sales capabilityThe supplier has inventory capability and lists training among its overseas service offerings, but reports no overseas warehouse, showroom, agent, or branch. It also has no written complaint-handling, corrective/preventive-action, or service-capability assessment procedures, limiting evidence of a structured after-sales system.

R&D capabilityThe supplier reports one R&D engineer and no available SDK. It does provide technical development services, but the limited stated R&D staffing and lack of SDK evidence do not demonstrate strong innovation capability.

Production capacityThe supplier operates two production lines, has inventory capability, reports quality assurance, and states peak- and off-season lead times within 15 workdays. However, it has no valid manufacturing-capacity contract with related subcontractors and no written service-capability assessment procedures, so production capacity is supported but incompletely documented.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. It also reports OEM service for well-known brands, providing direct evidence of broad customization capability.

Product Q&A

Q:What are the types of industrial connectors?

Industrial connector types include: power (PIN type) / data USB. TYPE C / signal (RJ45 fiber optic) customizable connectors. Which type do you specifically need to use, and I will give you a precise recommendation.

Q:What types of connectors does STA provide?

We offer a full range of industrial connectors, including M Series Circular Connectors M5 /M8 /M12/ M16 /M23/ M40,Waterproof IP67/ IP68 Connectors,Aviation Plug Industrial Circular Connectors,RF Coaxial Connectors,Push-pull Metal Connectors.Customized OEM/ODM Cable Assembly Solutions.

Q:Can you provide samples for testing?

Yes. We provide free or low-cost samples depending on the product model.Shipping cost may be borne by the customer.

Q:What industries do your connectors serve?

Our products are widely used in:Industrial automation & factory machinery,Robotics & smart manufacturing,Rail transportation & heavy equipment,Medical devices & instrumentation,Communication & wireless systems,Smart agriculture & outdoor equipment,New energy & EV equipment.

Q:5.Do your connectors follow international standards?

Yes. Our connectors comply with:IEC / DIN standards,EU circular connector standard,MIL-DTL specifications (for MIL series).