16‑Pin Square Aviation Connector Male, Wire‑Soldering Type | Square Circular Industrial Plug

This 16‑pin square male wire‑soldering aviation connector features 16 contact positions, fully numbered 1‑16 inside the housing for easy wiring reference. The square housing structure is optimized for panel‑fit or cable‑side male plug application. Termination method is pure wire‑soldering, suitable for on‑site assembly and small‑batch production. Standard product comes in black flame‑retardant plastic housing. Custom modifications for housing material, pin assignment and special surface treatment are available upon customer request. Every finished connector passes strict visual inspection, continuity testing and insulation resistance testing before shipment to guarantee consistent batch quality.

1.1 Structural and Material Parameters

Housing material is high‑grade flame‑retardant PA66 engineering plastic, black color, injection‑molded in one piece. The built‑in side locking lugs are integrated with housing, providing stable mating locking force and preventing accidental disconnection under vibration. The inner cavity is precision molded with clear pin‑number marks (1‑16), helping operators quickly identify each terminal during soldering work and lowering human wiring error rate. Conductive pins are high‑purity oxygen‑free copper alloy with gold‑plated contact surface for anti‑oxidation and stable conductivity. All solder terminals are enlarged to offer sufficient soldering pad area, reducing risks of cold solder joint, virtual soldering and wire falling‑off. The connector supports multi‑strand stranded copper wires. Recommended wire gauge ranges from 18AWG to 24AWG, suitable for signal‑level cables and low‑power supply wires. Recommended wire stripping length is 5‑8 mm for best soldering result. The square outline structure avoids rotation during mating and ensures correct orientation every time the plug is inserted.

1.2 Electrical Performance Parameters

Rated current per contact: 3A. Rated voltage: 250V AC/DC. Dielectric withstand voltage: 1500V AC for 1 minute without breakdown or flash‑over. Insulation resistance ≥1000 MΩ under normal ambient temperature and humidity. Contact resistance ≤5 mΩ. Gold‑plated contact surface effectively suppresses contact resistance drift caused by long‑term oxidation, dust accumulation and humidity erosion. Mechanical mating life reaches more than 1000 insertion‑withdrawal cycles. Even after repeated plug‑and‑unplug operations, electrical performance remains stable, ensuring reliable multi‑channel signal transmission. The connector is designed mainly for signal transmission and low‑current auxiliary power circuits, not for high‑current main power loops.

1.3 Mechanical Performance Parameters

Integrated side locking structure provides reliable retention force after mating. Anti‑mis‑orientation square shape prevents wrong insertion. The locking lugs can sustain repeated locking and unlocking cycles without easy fracture. The whole assembly can withstand vibration test conditions of 10‑2000 Hz, adapting to equipment working conditions with continuous mechanical vibration. Solder terminals are reinforced to resist cable pulling force, preventing terminal displacement or desoldering under cable tension. The plastic housing possesses good impact resistance against ordinary external mechanical collision.

1.4 Environmental Performance Parameters

Operating temperature range: ‑40 ℃ ~ +85℃. Storage temperature: ‑45 ℃ ~ +110 ℃. The plastic housing maintains stable physical property under wide temperature fluctuation, no cracking or deformation during cold‑hot alternation. It can work continuously under relative humidity up to 90% non‑condensing environment. The base‑version housing provides dust‑resistant and splash‑proof performance for protected indoor or semi‑outdoor installation environment. It is suggested to add external protective housing or sealing accessories if used in heavy‑dust, continuous water‑splashing outdoor scenarios. The material features anti‑aging performance, resisting slow degradation caused by long‑time indoor ambient conditions.

1.5 Soldering Process Parameters

Recommended soldering iron temperature: 240 ℃‑250 ℃. Single‑point soldering time should be controlled within 2‑4 seconds to avoid high‑temperature damage and deformation of plastic housing. Lead‑free solder wire is compatible and meets RoHS environmental‑protection requirements. Reasonable gap between adjacent solder terminals effectively reduces tin‑bridge short‑circuit risk in manual soldering work. Operators can finish wiring work with ordinary soldering iron, no special crimping tools needed. It fits both on‑site field modification and small‑volume workshop assembly.

Our 16‑pin square male wire‑soldering aviation connector combines high‑density multi‑pin layout, square anti‑misplug structure and convenient field‑soldering termination, solving many practical pain points in multi‑channel signal connection projects. Compared with circular multi‑pin connectors, its square form factor saves installation space and provides anti‑rotation positioning. Wire‑soldering structure brings high flexibility for engineering site wiring, equipment refitting and after‑sales maintenance work. Clear pin‑number marking inside cavity greatly reduces wiring mistakes. Reliable locking mechanism prevents plug loosening under vibration. This product offers balanced performance and competitive cost for multi‑signal interconnection demands of industrial equipment.

2.1 High‑Density 16‑Pin Compact Square Layout

16 signal channels are integrated inside one compact square housing. It realizes multi‑group signal input‑output interconnection without using multiple separate low‑pin‑count connectors. Square shape provides physical anti‑mis‑insertion function, avoiding wrong‑angle mating. Internal printed pin numbers 1‑16 help engineers quickly confirm each signal definition during wiring, debugging and later maintenance. The compact outline saves cabinet and device internal space, supporting miniaturized equipment structural design.

2.2 Convenient Wire‑Soldering Field Termination Without Special Tooling

Different from crimp‑style connectors which require expensive crimping dies and hydraulic tools, this solder‑type male plug can be assembled just by standard soldering iron. It is extremely suitable for project site wiring, equipment renovation work, prototype debugging and small‑batch production. Maintenance technicians can replace cables or re‑wire on site without sending equipment back to factory. This largely shortens construction cycle and lowers tool‑investment cost for system integrators and engineering customers. Enlarged solder pads help operators get stable soldering quality and lower defective rate of manual assembly.

2.3 Secure Lock‑in Structure for Anti‑Vibration Application

Two integrated side locking lugs form firm mechanical retention after mating. When the connected device works under vibration environment, the connector will not loosen or drop off accidentally. Reinforced solder terminals resist cable pulling tension, lowering the risk of intermittent signal failure caused by cable tugging. Gold‑plated contact pins maintain stable signal transmission quality for long‑term running, resisting oxidation and surface corrosion under normal industrial ambient conditions.

2.4 Strict Quality Control & Compliance for Global Export

Raw‑material plastic is halogen‑free flame‑retardant engineering material. Finished products comply with RoHS standards for worldwide export. Every batch undergoes sampling inspection for appearance, continuity, insulation resistance and mechanical locking performance. Stable batch‑to‑batch quality reduces product failure rate in end‑customer equipment and decreases after‑sales pressure for system manufacturers. Besides standard version, we can support customized requests such as modified pin assignment, special housing color and matching female counterpart development.

This 16‑pin square male wire‑soldering aviation connector is mainly oriented toward multi‑channel signal transmission and low‑voltage auxiliary power interconnection occasions. It is widely adopted in industrial automation control devices, mechanical equipment control modules, sensor combination systems, intelligent instrument equipment, new‑energy auxiliary control units and special‑purpose machinery.

3.1 Industrial Automation & Control Equipment

Used for signal interconnection between control main‑boards and distributed I/O modules, multi‑sensor combination groups and peripheral actuators. The 16‑pin high‑density design can transmit multiple switching signals and analog signals at one time. Soldering‑type structure is convenient for prototype debugging and on‑site equipment modification. Anti‑vibration locking structure adapts to production‑line working environment.

3.2 Intelligent Instrument & Testing Devices

Applied in multi‑channel testing instruments and analytical equipment, realizing connection between internal circuit board and external sensor harness. Square anti‑misplug structure prevents wrong plug‑in during test operation, ensuring test‑data reliability. Clear pin‑number marking brings convenience for instrument production debugging and after‑sales repair work.

3.3 New‑Energy Auxiliary Control Modules

Suitable for signal harness connection of energy‑storage auxiliary control units, photovoltaic peripheral monitoring modules and related auxiliary signal circuits. It handles multi‑path monitoring signal transmission, meeting compact‑layout requirement of new‑energy equipment. Please note this connector is for signal and low‑current auxiliary circuits instead of high‑power main‑loop connection.

3.4 Special‑Purpose Machinery & Off‑Board Electronic Systems

Matching for engineering machinery auxiliary control harness, agricultural machinery electronic modules and other special‑purpose equipment. The anti‑vibration locking function adapts to vibration generated by mechanical operation. Field‑soldering feature facilitates field‑repair and harness replacement in machinery service scenarios.

3.5 Cabinet‑Built‑in and Indoor Industrial Devices

Commonly used inside control cabinets and indoor intelligent devices for multi‑signal internal‑external interconnection. Compact square housing helps optimize internal cabinet wiring layout. Cost‑effective performance fits mass‑production of general‑industrial intelligent terminals.

Q1: What is the termination method of this 16‑pin square male connector?

This is wire‑soldering type. Users complete cable connection by soldering wires onto terminals with soldering iron. Crimping tools are not required, suitable for field assembly and small‑batch manufacturing.

Q2: What wire gauge should I select for soldering?

Recommended wire gauge range is 18AWG‑24AWG multi‑strand copper wire, mostly for signal‑level cables and low‑current auxiliary power wires. Do not use over‑thick wires that may cause assembly difficulty or plastic‑housing thermal damage during soldering.

Q3: Is this connector suitable for high‑current power supply?

Each contact rated current is 3A. This connector is mainly designed for multi‑channel signal transmission and low‑current auxiliary power circuits. It is not recommended for high‑current main‑power loops. For high‑power application please select our larger‑size high‑current series connectors.

Q4: Does this square plug support anti‑mis‑insertion?

Yes. Its square housing outline provides orientation‑limiting function, preventing wrong‑angle mating. Meanwhile each terminal inside cavity is marked with pin number 1‑16 for wiring reference.

Q5: What working environment is this connector fit for?

Standard version is suitable for indoor, cabinet‑inside and semi‑protected semi‑outdoor environment. It can resist ordinary dust and splash. For heavy‑dust and continuous water‑immersion outdoor conditions, extra sealing accessories or protective housing shall be equipped.

Q6: Do you provide matching female counterpart connector?

Yes, we can supply matching female square connector and related accessories. Please consult our sales team for complete mating‑part information.

Q7: Do you support custom requirements?

We accept custom‑service including special pin assignment, special housing color, customized marking and non‑standard structural adjustment. Please provide detailed technical requirement for evaluation and quotation.

Q8: What about certification, lead‑time and after‑sales policy?

Standard products comply with RoHS. In‑stock standard items can be shipped in 3‑5 working days. Custom orders take 7‑15 working days based on project complexity. We provide 12‑month quality warranty and 24‑hour online technical support for product‑selection, wiring guidance and fault‑analysis.

We are a professional manufacturer specialized in various industrial circular and square aviation connectors, covering round M‑series connectors and multi‑pin square‑form‑factor connectors. We integrate connector R&D, mold‑development, injection‑molding, terminal stamping and finished‑product assembly. Strict multi‑step quality inspection runs through the whole production process, to guarantee stable quality for global industrial customers.

Our 16‑pin square male wire‑soldering aviation connector offers high‑density multi‑signal interconnection solution for automation equipment, intelligent instruments, new‑energy auxiliary systems and special‑purpose machinery. We provide standard stock product supply, free sample testing service, bulk wholesale and personalized customization. Whether you need standard‑spec parts or custom‑developed connectors for your equipment project, our team can deliver targeted interconnect solutions.

We sincerely welcome global purchasers, system integrators, equipment manufacturers and engineering partners to inquire technical specifications, request datasheets, get wholesale quotations and submit custom‑development demands. Our professional sales and technical support team supplies one‑stop services including product selection suggestion, technical‑solution discussion, application guidance and complete after‑sales support, aiming to build long‑term stable win‑win cooperation relationships with worldwide clients.