Y50X18-08TJ5L2 | 8-Pin High-Strength Bayonet Plug with 5L2 Backshell
Y50X12-08TJ5L2 is a GJB standard circular plug featuring 8 pin contacts and a size 18 shell. Equipped with an enhanced 5L2 backshell for superior strain relief and “X” series environmental sealing.
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Engineering Superiority of the Size 18 Y50X18-08TJ5L2
The Y50X18-08TJ5L2 is a heavy-duty interconnect component designed for systems that demand a balance of high power capacity and extreme mechanical endurance. The size 18 shell is a robust housing that offers significantly more internal volume and structural thickness than smaller shell sizes, allowing it to withstand the rigorous physical demands of heavy industrial machinery and military-grade electronic grids. The TJ designation identifies this as a plug assembly featuring pin (male) contacts, making it the primary interface for delivering power or command signals from a cable assembly to an equipment port.
Central to its mechanical performance is the three-point bayonet coupling mechanism, which ensures a vibration-proof connection with a quick 120-degree turn. This model is specifically paired with the 5L2 backshell, an upgraded version of the standard cable accessory. The 5L2 backshell features a more aggressive clamping system and a refined internal sealing structure, providing the necessary strain relief for larger or more rigid cables. This architecture ensures that the mechanical stress of cable movement is completely isolated from the internal terminations, preserving the electrical integrity of the 8-pin interface throughout its operational lifespan.
Key Specifications
Shell Material | Voltage Rating | Current Rating | Operating Temp | Ingress Protection | Mating Cycles | Keying & Polarization | Coupling |
|---|---|---|---|---|---|---|---|
Aluminum alloy | ~1000 VAC | ~40 A | -55 °C to +150 °C | IP67 | 500 | N | Quick bayonet coupling |
8-Pin Arrangement and Electrical Integrity
The 18-08 insert arrangement of the Y50X18-08TJ5L2 provides eight independent conductive paths within the size 18 dielectric housing. Each pin is machined from a high-conductivity copper alloy and treated with premium gold plating. This finish is essential for maintaining a low-resistance electrical path and preventing surface oxidation, even in humid or corrosive atmospheres. The increased pin spacing inherent in the size 18 layout allows for higher voltage ratings and effectively eliminates the risk of crosstalk or electrical leakage, making it suitable for both mission-critical data and substantial power distribution.
The internal insulation is constructed from advanced dielectric polymers with high thermal stability. These materials are selected for their ability to maintain their physical shape under the heat generated by electrical loads, ensuring that the 8-pin layout remains perfectly aligned for consistent mating cycles. For engineers managing multi-channel sensor arrays or high-torque motor controls, the Y50X18-08TJ5L2 provides a reliable gateway that ensures consistent performance across a diverse range of electrical parameters.
"X" Series Environmental Resilience and EMI Shielding
As an “X” series enhanced environmental connector, the Y50X18-08TJ5L2 is designed to maintain a hermetic-like barrier against the elements. The plug incorporates a comprehensive sealing system, including high-resilience interfacial seals and rear grommets that protect the contact area from moisture, dust, and particulate ingress. The 5L2 backshell further bolsters this protection at the cable exit, creating a secondary seal that prevents humidity from migrating into the equipment housing. This level of environmental hardening is vital for deployments in maritime zones, desert climates, or unpressurized aviation compartments.
Electromagnetic compatibility (EMC) is a standard feature of the metallic aluminum alloy shell. When the Y50X18-08TJ5L2 is utilized with shielded cabling and the 5L2 backshell, it forms an effective Faraday cage that attenuates external electromagnetic interference (EMI) and radio frequency interference (RFI). The shell finish—typically nickel or olive drab chromate—provides an additional layer of corrosion resistance, protecting the functional life of the bayonet lugs and ensuring that the connector remains easy to operate even after prolonged exposure to salt spray and industrial chemicals.
Strategic Integration in Modern Industrial Grids
The versatility of the Y50X18-08TJ5L2 makes it a strategic asset for system integrators in the aerospace, energy, and industrial automation sectors. In heavy industrial automation, its robust 5L2 strain relief is ideal for multi-axis robotic systems where cables are subject to repetitive flexing and high-velocity movement. In the defense sector, the GJB-compliant design ensures full intermateability with existing size 18-08 infrastructure, enabling a cost-effective path for system hardening and technological upgrades.
Whether it is integrated into a robotic power unit, a high-fidelity telemetry system, or a ruggedized field communication hub, the Y50X18-08TJ5L2 delivers performance that far exceeds standard commercial interconnects. Its combination of mechanical strength, environmental resilience, and electrical precision provides the confidence needed for mission-critical deployments. By selecting this advanced size 18 variant with the 5L2 backshell, engineering teams are investing in a long-term solution that minimizes maintenance overhead and maximizes system reliability in the most challenging environments.
FAQ
What is the difference between the 2L2 and 5L2 backshell?
What is the difference between the 2L2 and 5L2 backshell?
The 5L2 backshell is a reinforced version that offers a more robust cable clamping mechanism and improved internal sealing, making it better suited for heavier cables and more intense mechanical stress environments.
Can the Y50X18-08TJ5L2 handle both power and signal?
Can the Y50X18-08TJ5L2 handle both power and signal?
Yes, the 8-pin arrangement and size 18 shell provide the necessary spacing and dielectric strength to handle low-frequency signal transmission alongside standard power loads.
Is the TJ pin configuration safe for all cable ends?
Is the TJ pin configuration safe for all cable ends?
TJ denotes pin (male) contacts. While commonly used for power delivery, engineers must ensure the mating receptacle (ZK/Socket) is used on the “live” side to prevent accidental contact with exposed pins when unmated.
How does the gold plating affect the connector's lifespan?
How does the gold plating affect the connector's lifespan?
The gold plating prevents oxidation and ensures low contact resistance, allowing the Y50X18-08TJ5L2 to maintain its electrical performance over thousands of mating and unmated cycles.
Is this model compatible with other Y50 series hardware?
Is this model compatible with other Y50 series hardware?
Yes, it is fully intermateable with any Y50 series receptacle that features a size 18 shell, a matching 8-socket (female) arrangement, and a standard three-point bayonet interface.
Certification
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