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M19-4P Female Aviation Socket, PC5.0 Wire-Solder Type, Full-Tin Contact 0.3mm Thickness Red Waterproof Gasket, Cable-Gland Sleeve & Black Waterproof Gasket

Our M19-4P female aviation socket is a field-assemblable circular waterproof connector built for industrial power and signal interconnection. This 4-pin female receptacle adopts PC5.0 wire-solder termination structure, with full-tin contacts of 0.3 mm material thickness for outstanding electrical conductivity and mechanical stability.

Product Overview

Our M19-4P female aviation socket is a field-assemblable circular waterproof connector built for industrial power and signal interconnection. This 4-pin female receptacle adopts PC5.0 wire-solder termination structure, with full-tin contacts of 0.3 mm material thickness for outstanding electrical conductivity and mechanical stability. Each complete unit comes with a full plastic three-piece accessory kit, consisting of red waterproof gasket, cable-gland sleeve for cable strain relief, and black waterproof gasket, supporting on-site cable assembly without special tooling. The split plastic gland sleeve serves as cable clamping component, locking the outer cable jacket tightly to resist cable pulling force, while dual-color gaskets deliver multi-layer sealing performance against moisture and dust intrusion. Designed for cable-to-cable or cable-to-device connection, this M19-4P female aviation socket is widely deployed in automation systems, new-energy auxiliary equipment, outdoor monitoring sensors and field-installation devices. All raw materials comply with RoHS and REACH directives for global export, with consistent quality for mass production and small-batch trial orders.

Product Specifications and Parameters

Item

Technical Parameter

Part Number

112000004

Product Model

M19-4P Female Aviation Socket(OD-M19-4F-H-O-S0-0)

Pin Configuration

4 Pin Female Receptacle

Termination Type

PC5.0 Wire-Solder Type (Manual cable soldering, field assembly available)

Contact Material

Full-Tin Material, 0.3 mm material thickness

Contact Surface Finish

Tin-plated, anti-oxidation for power & signal transmission

Thread Specification

M19 standard circular connector thread

Rated Voltage

250V AC/DC

Rated Current

12A per single contact

Contact Resistance

≤10 mΩ

Insulation Resistance

≥5000 MΩ

Dielectric Withstand Voltage

1500V AC, 1 minute without breakdown

Ingress Protection Grade

IP67 (fully assembled, gaskets properly compressed, cable locked by gland sleeve)

Operating Temperature

-40℃ ~ +85℃

Mechanical Mating Cycles

≥500 times

Insulator Housing Material

High-strength flame-retardant engineering plastic, UL94-V0

Gland & Sleeve Material

High-rigidity reinforced nylon plastic

Sealing Parts

Red silicone waterproof gasket, black silicone waterproof gasket, flexible cable-gland sleeve

Applicable Cable Range

Match for multi-core industrial cables within corresponding outer diameter for M19 gland

Compliance Standard

RoHS, ISO9001 production management system

Additional parameter explanation: The 0.3 mm thick full-tin contact body provides sufficient structural strength for repeated plugging cycles. Compared with thin-wall contacts, it reduces deformation risk under vibration and thermal cycling. PC5.0 solder cup dimension is optimized for larger-gauge power cables, enabling full tin filling during soldering and avoiding cold-solder or virtual-solder risks. The three-piece plastic kit forms dual-sealing architecture: red gasket works at connector mating interface, black gasket works between housing and cable-gland sleeve, and the middle sleeve compresses cable outer jacket to realize strain relief. All gaskets maintain stable elasticity under wide temperature variation, no permanent deformation after long-time compression. IP67 performance is only achieved on condition of correct assembly; improper cable size or mis-installed gaskets will degrade waterproof performance. Users shall derate actual working current under high-temperature enclosed environment to extend connector service life.


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Product Features and Advantages

2.1 PC5.0 Wire-Solder Structure for Heavy-Duty Cable Connection

This M19-4P female socket uses PC5.0 solder-type terminals with larger solder cup opening. It adapts to relatively thick power cables frequently used in industrial field wiring. Operators can finish soldering work conveniently without special crimp tools. Solder joints can be visually inspected after welding, which greatly lowers hidden troubles from bad crimping. For field maintenance scenarios without crimping equipment, wire-solder design brings remarkable convenience. The terminal structure guarantees stable electrical connection even when cable bears pulling force.


2.2 0.3 mm Full-Tin Contacts for Mechanical Robustness

Contacts adopt full-tin material with 0.3 mm wall thickness. Thick-body contacts possess better rigidity and anti-deformation capability. In continuous-vibration workshop or mobile equipment, contacts will not deform or shift caused by frequent mating and mechanical shock. Tin-plated surface provides good anti-oxidation performance for general industrial environment, balancing reliable performance and competitive cost for mass-volume projects. It supports mixed transmission of power supply and control signal inside one connector.


2.3 Complete 3-Piece Kit: Dual-gasket + Cable-gland Sleeve

Every finished M19-4P female aviation socket is supplied with complete three-piece accessories: red waterproof gasket, cable-gland strain-relief sleeve and black waterproof gasket, no extra spare-part purchasing required.

  • Red waterproof gasket: seals the mating surface between male and female connector bodies, block dust and splash water from connection interface.
  • Black waterproof gasket: forms secondary sealing between connector housing and gland assembly, prevent moisture creeping along thread gap.
  • Cable-gland sleeve: acts as cable clamping component. When tightening outer thread nut, the sleeve shrinks and tightly grips cable outer sheath. It transfers cable pulling force onto connector housing instead of solder joints, effectively protecting soldered points from tension damage.

Multi-layer sealing plus strain-relief function is the core advantage of this field-installable aviation socket. Even if the cable is accidentally dragged in practical use, internal solder joints will not suffer stress fracture.


2.4 IP67 Waterproof & Dust-proof for Harsh Field Environment

With correct assembly of red gasket, black gasket and cable-gland sleeve, the whole connector assembly reaches IP67 protection level. It resists rain splash, outdoor dew, workshop dust, oil mist and humid air. Dual-gasket structure creates redundant sealing, lowering failure probability caused by single-gasket aging. It avoids circuit short-circuit, pin corrosion and signal discontinuity induced by moisture intrusion, ideal for outdoor equipment and damp factory floors.


2.5 Field-assembly, Easy On-site Installation & Maintenance

This M19-4P female aviation socket supports on-site cable assembly. Technicians can bring loose connector parts to project site, solder cables on location and finish gland locking. It is different from pre-molded over-molded cables, which cannot be reworked once damaged. When cable is worn on-site, users only need to disassemble this connector, re-solder cable and reassemble the three-piece kit, saving replacement cost for whole cable harness. Reinforced nylon plastic gland parts feature high toughness, crack-resistance during repeated tightening.


2.6 Wide Temperature Adaptability & Certified for Global Export

Insulator and sealing components sustain working range from-40℃ low-temperature cold condition up to +105℃ high-temperature environment. It fits outdoor winter cold climate as well as summer high-heat cabinet surroundings. All raw materials pass RoHS and REACH compliance test, qualified for export to European, Southeast Asian and other overseas markets. Under ISO9001 quality management system, each batch undergoes sampling test covering contact resistance, insulation property, waterproof performance and mechanical life before shipment, reducing after-sales risk for equipment manufacturers. Standard model is in stock for fast delivery; modification service is available for special requirements.

Application Scenarios

The M19-4P female aviation socket with PC5.0 wire-solder terminals and plastic three-piece kit is widely used for field wiring connections in many industries, especially for projects requiring on-site assembly and high waterproof performance.

Industrial Automation Equipment

Used for field wiring of assembly-line sensors, distributed control modules, test jigs and conveying machinery. Cable-gland sleeve protects solder joints from pulling force generated by machine vibration. Dual-gasket sealing adapts dusty and oily workshop atmosphere. Field-assembly feature brings great convenience for on-site debugging and equipment retrofitting.

Outdoor Monitoring & Field Detection Instruments

Applied for outdoor sensor boxes, environmental monitoring stations, field data collection devices and roadside intelligent terminals. IP67 multi-layer sealing defends against rain, dew and sand dust. Field-installable design allows technicians to assemble connectors after laying cables on location.

New-Energy Auxiliary Equipment

Suitable for small-scale energy-storage peripheral modules, photovoltaic auxiliary signal wiring and distributed power-supply units. Thick PC5.0 solder terminals support relatively higher-current power transmission. Waterproof structure prevents dew from penetrating into connection points, improving safety of outdoor new-energy installations.

Agricultural & Engineering Machinery

For agricultural machinery electronic modules, construction machinery auxiliary sensors and mobile vehicle-mount devices. Strong strain-relief function prevents connector failure caused by cable dragging and vehicle bumping. Wide-temperature-range performance adapts variable outdoor working conditions.

Intelligent Transportation & Road-side Terminal

Road-side traffic equipment, outdoor access-control cabinets and street-light control modules. On-site assembly helps constructors finish wiring work without prefabricated harness. Dual-gasket waterproof avoids circuit fault under long-term open-air exposure.

Non-standard Automation & Special-purpose Test Equipment

Various custom machines and testing devices. When project needs special cable length which cannot be pre-fabricated in factory, this solder-type M19-4P female aviation socket becomes an ideal solution for flexible on-site assembly.

m19 4p female aviation socket pc50 wire solder type full tin contact 03mm thickness red waterproof gasket cable gland sleeve  black waterproof gasket-4

Frequently Asked Questions (FAQ)

Q1: What accessories are included for this M19-4P female aviation socket?
A1: Each set is equipped with complete plastic three-piece kit: red waterproof gasket, cable-gland strain-relief sleeve, black waterproof gasket. All sealing and cable-clamping components are provided as standard, ready for assembly after receiving goods. Spare gaskets and sleeves can be ordered separately if you need replacement parts.

Q2: What is PC5.0 wire-solder type?
A2: PC5.0 stands for 5.0 mm solder-cup terminal specification. It is wire-solder structure for relatively thicker industrial cables. Users strip cable cores and solder wire into terminal cup manually. No crimping tool is necessary, suitable for field installation and repair work.

Q3: What does 0.3 mm full-tin contact mean?
A3: It refers to 0.3 mm material thickness of full-tin contacts. Thicker contact body delivers higher mechanical strength, anti-deformation and anti-vibration performance, for long-term stable power and signal connection in industrial equipment.

Q4: How can I reach IP67 waterproof performance?
A4: Three key points must be satisfied: first, install red and black gaskets in correct position without scratch or distortion; second, select cable matching the gland sleeve inner diameter; third, tighten thread nut properly so that sleeve compresses cable jacket and two gaskets are fully compressed. IP67 rating cannot be guaranteed under mis-assembly condition.

Q5: Can this connector be assembled on project site?
A5: Yes. It is designed for field assembly. You may disassemble the plastic three-piece kit, solder cable wires onto PC5.0 terminals, then fit red gasket, black gasket and cable-gland sleeve in sequence and tighten nut. Please take care not to damage silicone gaskets during operation.

Q6: What is rated current and do I need current derating?
A6: Single-contact rated current reaches 12A. For continuous long-time operation or high-temperature enclosed cabinet environment, please make proper current derating to protect connector and extend service life.

Q7: Can you provide customized version?
A7: Customization is supported. Available options include special cable-gland size, modified terminal specification, special gasket hardness and customized packaging. Please offer your drawing or detailed requirement, our engineering team will evaluate feasibility and provide quotation and lead-time.

Q8: Which documents can you supply for export?
A8: We can provide RoHS, and ISO9001 certificate. For other special certifications, please communicate with our sales team in advance.

Contact Us

We are specialized manufacturer of industrial circular aviation connectors, waterproof field-assembly sockets and matching wiring components. Supported by in-house R&D department, precision production lines and complete testing lab, we devote ourselves to supplying high-reliability interconnect components for global industrial customers.


Our M19-4P female aviation socket, PC5.0 wire-solder type with 0.3 mm full-tin contacts and three-piece kit (red waterproof gasket, cable-gland sleeve, black waterproof gasket), is well-accepted by customers from automation, new-energy, outdoor equipment and machinery industries. We supply both standard in-stock items and OEM & ODM custom services.


If you require dimension drawings, 3D files, sample request, bulk-order quotation, technical consultation or custom-solution support, please get in touch with our professional sales team. We promise to reply your inquiry within 24 working hours, offer professional product-selection suggestion and solve your wiring-connection challenges.

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