This rugged miniature circular connector is engineered for extreme environments, offering a robust break away mechanism for quick disconnect. Waterproof when mated and unmated, it ensures reliable signal integrity and EMI shielding. Fully compatible with AMC Easy Clean systems.
The quality and structure of the cable, cabling process, and cable length are critical factors that directly influence the performance of your interconnect solution. The interface between the cabled connector and the device’s transmitter and receiver is also essential to ensure that the entire system meets your industry standards and operational requirements.
The AMC High Density A1 plug combines extremely compact size with maximum electrical performance, making it ideal for military and rugged field applications. Designed for quick-disconnect (break-away) functionality, IP68 waterproof sealing, and up to 40 contacts in a single unit, it ensures signal integrity and mechanical resilience even under the most demanding conditions. This miniature solid connector is tested to MIL standards, offering robust protection against vibration, dust, and moisture, while its color-coded mechanical keying guarantees secure and intuitive mating.
FFA 0E 1E 2E 3E Serie Ip68 Circular Push Pull Plug Aviation
The LINKHIVE FFA 0E/1E/2E/3E circular push pull plug aviation series is an outdoor-grade IP68 connector solution engineered to meet the stringent demands of defense, aerospace, medical, and industrial sectors. These IP68 connectors are deliver outstanding performance under extreme conditions.
Each FFA E series plug aviation features an inner sleeve and dual sealing rings to prevent solid or liquid ingress, making it ideal for rugged environments where water and dust protection are critical. This circular push pull plug complies with IEC 60529 IP68 standards when properly mated and IP66 otherwise.
The LINKHIVE FFA 0E/1E/2E/3E IP68 circular push pull plug is the ideal solution for mission-critical environments. Typical applications include:
Aerospace & Aviation: Used as plug aviation connectors for onboard systems, ground support units, and UAVs.
Industrial Automation: Ensures reliable signal and power connections in outdoor automation cabinets and robotic arms.
Military & Defense: Withstands shock, vibration, and weather exposure, suitable for tactical equipment and field communications.
Test & Measurement: Provides high-density signal integrity for outdoor data acquisition devices and mobile labs.
For 3D CAD files, datasheets, or sample inquiries, contact LINKHIVE. We provide tailored circular connector solutions for global industrial and aviation applications.
Half moon connectorKey Features
IP68 Sealing
Push Pull Locking System
Unipole & Multipole Support
EMC Shielding
Wide Range of Configurations
Solder, crimp, and PCB mount contacts
Rugged housing design suitable for extremely harsh working environments
Half Moon connector Diamensions
| Reference | Diamensions(mm) | ||||
| series | size | A | L1 | L2 | SW1 |
| 0E | FFA 0E | 11 | 36 | 25 | 7 |
| 1E | FFA 1E | 13 | 42 | 28 | 9 |
| 2E | FFA 2E | 16 | 52 | 36 | 13 |
| 3E | FFA 3E | 19 | 61 | 41 | 15 |
| 4E | FFA 4E | 25 | 71 | 50.5 | 19 |
Choosing the right configuration for the FFA OE/1E/2E/3E Series ensures reliability in demanding environments:
Assess Application Environment: For aviation or outdoor installations, prioritize higher contact sealing levels (IP68-rated) to resist dust, water, and vibration.
Determine Contact Count: Select the number of contacts (2–18 pins) based on your signal density and current load requirements.
Match Cable and Clamp Ø: Check the cable's outer diameter and match it to the connector’s Clamp Ø for a secure, strain-free fit.
Consider Insert Type: Opt for stepped inserts for anti-vibration locking, ensuring secure engagement in mobile or high-vibration systems.
Verify Current & Voltage Ratings: Use the contact diameter chart to confirm that the selected pins meet your system’s current-carrying capacity.
Compliance & Longevity: For aviation or mission-critical applications, ensure selected configurations meet IEC and aerospace-grade performance standards
Use the model selection tables below to quickly find the right connector.
Each model includes insert layout, contact count, and recommended application, making it easy to match your requirements
Model Selection Table
Minature Size FFA 0E/1E Serie IP68 Circular Push Pull Plug Aviation Selection
| Mode | TFA.0E.302.CLA.52 | TFA.0E.303.CLA.52 | TFA.0E.304.CLA.22 | TFA.1E.302.CLA.42 | TFA.1E.303.CLA.52 | TFA.1E.304.CLA.52 | TFA.1E.305.CLA.62 | TFA.1E.306.CLA.72 |
| Inserts | Stepped Insert | Stepped Insert | Stepped Insert | Stepped Insert | Stepped Insert | Stepped Insert | Stepped Insert | Stepped Insert |
| Insert Layout |
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| Contacts | 2 contacts | 3 contacts | 4 contacts | 2 contacts | 3 contacts | 4 contacts | 5 contacts | 4 contacts |
| Cable Ø | Ø5.2 mm | Ø5.2 mm | Ø2.2 mm | Ø4.2 mm | Ø5.2 mm | Ø5.2 mm | Ø6.2 mm | Ø7.2 mm |
| Application | Aviation circular connector for compact sensors | IP68 Sealed connector for portable instruments | Watertight push pull plug for control devices | IP68 Watertight half moon connector for measuring equipment | stepped insert aviation plug connector for medical tools | Sealed Aviation circular connector for instrumentation | half moon connector for harsh environments | Push pull plug for outdoor electronic devices |
Medium Size FFA 2E Serie IP68 Circular Push Pull Plug Aviation Selection
| Mode | TFA.2E.302.CLA.27 | TFA.2E.303.CLA.32 | TFA.2E.304.CLA.42 | TFA.2E.305.CLA.52 | TFA.2E.306.CLA.62 | TFA.2E.307.CLA.72 | TFA.2E.308.CLA.82 | TFA.2E.310.CLA.87 |
| Inserts | half-circle insert | half-circle insert | half-circle insert | half-circle insert | half-circle insert | half-circle insert | half-circle insert | half-circle insert |
| Insert Layout |
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| Contacts | 2 contacts | 3 contacts | 4 contacts | 5 contacts | 6 contacts | 7 contacts | 8 contacts | 10 contacts |
| Cable Ø | Ø2.7 mm | Ø3.2 mm | Ø4.2 mm | Ø5.2 mm | Ø6.2 mm | Ø7.2 mm | Ø8.2 mm | Ø8.7 mm |
| Application | IP68 Aviation circular connector for control sensors | half moon connectorfor compact devices | Sealed connector for industrial instruments | half moon connector for portable testing tools | IP68 push pull connector for rugged applications | Watertight half moon connector for outdoor equipment | Round aviation connector for industrial sensors | High-density push pull connector for control systems |
Large Size FFA 3E Serie IP68 Circular Push Pull Plug Aviation Selection
| Mode | TFA.3E.302.CLA.42 | TFA.3E.303.CLA.57 | TFA.3E.304.CLA.72 | TFA.3E.305.CLA.87 | TFA.3E.306.CLA.97 | TFA.3E.307.CLA.11 | TFA.3E.308.CLA.42 | TFA.3E.310.CLA.57 | TFA.3E.312.CLA.12 | TFA.3E.313.CLA.13 | TFA.3E.314.CLA.97 | TFA.3E.316.CLA.11 | TFA.3E.318.CLA.97 |
| Inserts | half-moon insert | half-moon insert | half-moon insert | half-moon insert | half-moon insert | half-moon insert | half-moon insert | half-moon insert | half-moon insert | half-moon insert | half-moon insert | half-moon insert | half-moon insert |
| Contacts | 2 contacts | 3 contacts | 4 contacts | 5 contacts | 6 contacts | 7 contacts | 8 contacts | 10 contacts | 12 contacts | 13 contacts | 14 contacts | 16 contacts | 18 contacts |
| Insert Layout |
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| Cable Ø | Ø4.2 mm | Ø5.7 mm | Ø7.2 mm | Ø8.7 mm | Ø9.7 mm | Ø10.5 mm | Ø4.2 mm | Ø5.7 mm | Ø12.2 mm | Ø13.2 mm | Ø9.7 mm | Ø10.5 mm | Ø9.7 mm |
| Application | Aviation plug connector for large sensors | IP68 Sealed connector for heavy-duty instruments | Watertight half moon connector for outdoor testing tools | Aviation circular connector for rugged equipment | IP68 stepped insert aviation plug for harsh conditions | Sealed connector for large control devices | Watertight aviation plug for industrial sensors | Push pull connector for field-use instruments | Sealed connector for outdoor systems | Aviation circular connector for rugged field applications | Watertight round plug for portable devices | Push pull circular connector for control equipment | IP68 Sealed connector for instrumentation |
Q1: What materials are used in these connectors?
A: The connectors are made with chrome-plated brass shells for corrosion resistance and PPS high-temperature insulators, ensuring excellent mechanical strength and thermal stability.
Q2: How reliable is the sealing performance?
A: Every connector is IP68-rated, passing immersion sealing tests to guarantee dustproof and waterproof performance, even under harsh aviation or outdoor conditions.
Q3: What types of electrical tests are performed?
A: We conduct 100% continuity testing, insulation resistance checks, and high-voltage withstand testing to ensure each connector delivers safe and stable signal or power transmission.
Q4: Are there mechanical durability tests?
A: Yes, all connectors undergo mating cycle tests up to 5000 cycles as well as tensile and torsion tests on cable collets to ensure long-term durability.
Q5: Do these connectors meet international standards?
A: Absolutely. They are RoHS compliant and meet IEC/EN standards for aviation, industrial, and high-performance circular connectors.
Product main Performance
| Parameter | Specification |
|---|---|
| Type | Straight plug, Key (G/A~M), cable collet |
| Series | E Series FFA Plug |
| Shell Material | Chrome-plated brass |
| Insulation Material | PPS / PEEK / PTFE / PPSU |
| Humidity (Max) | ≤95% (at 60 °C / 140 °F) |
| Shielding | 75 dB (10 MHz), 40 dB (1 GHz) |
| Salt Spray Corrosion | 96 hr |
| Working Temperature | -40 °C ~ +200 °C |
| IP Rating | IP68 (when mated) |
| Shock Resistance | 100 g / 6 ms |
| Vibration Resistance | 15 g (10 Hz – 2000 Hz) |
| Mating Endurance | ≥5000 cycles |
| Insert Configuration | 304 |
| Contact Diameter | 0.7 mm |
| Contact Resistance | ≤6.5 mΩ |
| Rated Current | 7 A |
| Test Voltage (Contact–Contact) | 1450 V |
| Test Voltage (Contact–Shell) | 1000 V |
| Insulation Resistance | ≥5000 MΩ (600 V DC) |
| Gender | Plug aviation |
E Series half moon connector Panel Cutouts
E Series Half moon connector Cable Clamp
E Series Cable Clamp for 4E
LINKHIVE E Series watertight connectors Models
| Straight plug | Fixed socket | Fixed socket | vaccum tight/watertight socket | Free socket |
FFA |
ERA |
PSA t |
HGPt |
PCA |
FFA |
ERN |
EEP
|
PCA | |
FFA oversize |  FLA Elbow plug | |||
Linkhive Waterproof self-latching Push pull connector IP68 connector selection
Use the comparison table below to explore the four main self-latching push pull connector series in the IP68 Outdoor range and find the model best suited to your specific application needs.
K Series Outdoor keyed -Waterpfoof circular push pull connector |
E Series Outdoor keyed–- Waterpfoof circular push pull connector |
T Series Outdoor keyed– Heavy-Duty Waterproof Connectors Series |
C Series Outdoor keyed – The C Series features a slotted latching sleeve | |
| Description | LINKHIVE watertight connectors for Outdoor Harsh environments | LINKHIVE Economical watertight connectors offering reliable performance and robust sealing | LINKHIVE Rugged watertight connectors designed for high-vibration, high-impact environments with IP68 sealing. | LINKHIVE C Series metal circular connectors for outdoor and industrial applications |
| locking Mechanism |
1. just push the plug axially into the socket to lock |
2. pulling the cable or any other part will not disconnect unless the outer release sleeve is pulled. |
3. the connector is disengaged by a single pull on the release sleeve, which first releases the locking latches and then whithdraws the plug . |
|
| Locking methods | self-latching Push pull connector | self-latching Push pull connector | self-latching Push pull connector | self-latching Push pull connector |
| plug diameter | 8 sizes from ø 11 to ø 25.0 mm (plugs) | 8 sizes from ø 11 to ø 25 mm (plugs) | 8 sizes from ø 7 to ø 18.8 mm (plugs) | 7 sizes from ø 9.5 to 18mm (plugs) |
| Alignment Key | key G/A/B/C/D/E/F/J/K/L/M/Y/R | 1 (circular connector with half moon connector ) | key G/A/B/C/D/E/F/J/K/L/M/Y/R | key G/A/B/C/D/E/F/J/K/L/M/Y/R |
| length | 8 sizes from 36mm to 71mm | 8 sizes from 26 mm to 61mm | 8 sizes from 32.7 mm to 62mm | 7 sizes from 37mm to 59mm |
| Insulator | PPS/PEEK/PTEE/PA66 | PPS/PEEK/PTEE/PA66 | PPS/PEEK/PTEE/PA66 | PPS/PEEK/PTEE/PA66 |
| Shell Material | Chrome-plated Brass | Chrome-plated Brass | Chrome-plated Brass | Chrome-plated Brass |
| Salt Spray Corrosion | 96hr | 96hr | 96hr | 96hr |
| Cable ø | 1.0 to 23.5 mm | 1.0 to 23.5 mm | 2.4 to 15 mm | 1.0 to 15 mm |
| No.of PINS | 2 to 48 | 1 to 18 | 2 to 32 | 2 to 48 |
| Contact types | Multipole Contact /Coax Contact / Fibre Optic Contact/ Fluidic Contact/ High Voltage Contact/ hybrid Contact/ Thermocouple Contact | Mono Contact/ Multipole Contact / Coax /tri-coxial /Fluidic Contact / hybrid Contact | Multipole Contact /Coax Contact / Fluidic Contact/ hybrid Contact | Multipole Contact /Coax Contact / Fluidic Contact/ hybrid Contact |
| Sealing | Silicone/Epoxy | Silicone/Epoxy | Silicone/Epoxy | Silicone/Epoxy |
| Data Protocols | USB 2.0 / Eth Cat6 | USB 2.0 / Eth Cat6 | USB 2.0 / Eth Cat6 | USB 2.0 / Eth Cat6 |
| Sealing Level | IP68 connector | IP68 connector | IP68 connector | IP68 connector |
| Temperature Range | -55°C to 250°C | -55°C to 250°C | -55°C to 250°C | -55°C to 250°C |
| Mating Cycles | > 5000 | > 5000 | > 5000 | > 5000 |
Push-pull connectors, military connectors, hybrid connectors, bayonet connectors, custom connectors, cable assembly, and etc.
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The LINKHIVE K Series FGG connector is a robust IP68 connector solution for demanding outdoor and industrial applications. Designed as a watertight brass connector, it features a full-metal housing with self-latching connectors for secure, repeatable connections in the field. As a circular push pull connector, it ensures quick mating and unmating, even in tight installation spaces, the LINKHIVE K Series offers multi-keying options, B-series insert compatibility, and reliable sealing performance under harsh weather and environmental conditions. It is the ideal solution for military, broadcast, and test & measurement systems requiring compact waterproof connectivity.
The LINKHIVE EGG 0k 1k 2 k 3k 4K Series 304 Circular Waterproof Socket and avionics connectors are ideal for connecting medical imaging equipment and ECG cables. These waterproof sockets offer excellent waterproof performance, ensuring stable transmission and safe use in medical environments. LINKHIVE medical imaging connectors are widely adopted by medical equipment manufacturers worldwide due to their superior quality and reliability. With ample stock, they meet the needs of various medical applications
Designed for demanding applications requiring compact size and watertight performance, our short metal circular connector delivers secure and reliable connections. As a waterproof connector compatible with Mini Snap B Series Style 3, it offers excellent mating stability in tight installation spaces. The compact size circular plug features a self-latching push pull connector system, ensuring fast and effortless operation even in high-vibration environments. Manufactured with precision-machined housings and strict quality control, this connector is widely used in medical devices, industrial automation, and portable instruments. High stock availability and customization options ensure fast delivery and project compatibility.
The LINKHIVE Mini G8 Snap Series B is a compact waterproof IP68 receptacle engineered for tight installation environments. Featuring a secure push pull locking system and threaded design nut, this G8 tight installation receptacle is ideal for rear panel mounting where space is limited. Fully waterproof electrical plugs and sockets it offers robust environmental protection, stable signal transmission, and reliable long-term performance. Widely used in medical equipment, military-grade electronics, and compact industrial devices, this waterproof push pull receptacle combines compact form factor with proven sealing technology. Designed for quick assembly, the tight installation receptacle with nut ensures anti-rotation and vibration resistance even in harsh environments.
