YB3TAX Connector Series Technical Details - Aviation Connector YB3TAX YB3TPA

YB3TAX Connector Series Technical Details: Advanced Interconnect Solutions for Demanding Environments

For procurement managers and engineering specialists in aerospace, defense, and heavy industry, selecting the right connector series requires a deep understanding of technical specifications and performance under stress. The YB3TAX Connector Series (including variants like YB3TPA) represents a high-performance, environmentally sealed circular connector family engineered to exceed the rigorous demands of modern applications. This technical deep dive provides B2B professionals with critical insights into the YB3TAX series' architecture, specifications, and optimal deployment, supporting informed decisions for systems powering Aircraft Engine controls, mission-critical avionics, and ruggedized ground equipment.

Architectural Overview: A Modern Military-Grade Design

The YB3TAX series is built upon a foundation of reliability, modularity, and environmental resistance, positioning it as a leading choice for applications where failure is not an option.

• Robust Shell System: Constructed from high-strength aluminum alloy with a superior corrosion-resistant finish (e.g., electroplated nickel or advanced anodization). The shell design incorporates anti-rotation features and provides excellent EMI/RFI shielding, embodying the resilience expected of a Military Aviation Connector.
• Modular Insert & Contact Design: Features removable, interchangeable inserts that house precision-machined contacts. Contacts are gold-plated over nickel for optimal electrical performance, low mating force, and exceptional corrosion resistance, ensuring signal integrity for sensitive High quality Aviation Engine sensor data.
• Superior Sealing Technology: Employs a multi-barrier sealing approach: a primary fluorosilicone interface O-ring for wide temperature performance, individual wire rear seals, and often shell-to-cable entry sealing. This typically achieves an IP68 or IP69K rating, protecting against high-pressure water jets and prolonged immersion—critical for harsh outdoor or wash-down environments on Trains and ground vehicles.
• Secure Coupling Mechanisms: Available in both threaded (for high-vibration, permanent installations) and advanced push-pull quick-disconnect versions. The push-pull variant offers positive locking with audible/tactile feedback and high-vibration resistance without requiring rotational space.

The Procurement Perspective: Evaluating Technical Pedigree

For global procurement, the YB3TAX series' value lies in its validated technical pedigree. Beyond the datasheet, it's crucial to verify qualification to specific MIL standards (e.g., MIL-DTL-38999), material traceability, and the manufacturer's production quality system (AS9100). This due diligence ensures the component will perform as specified throughout the lifecycle of your product.

Detailed Technical Specifications Breakdown

1. Electrical Performance Parameters

These specifications define the connector's core electrical functionality and safety margins.

1. Contact Current & Voltage Ratings: Contacts are available in multiple sizes supporting currents from 3A to 40A+. The series is rated for a working voltage of 600V AC/DC RMS or higher, accommodating both high-power and high-voltage signal applications.
2. Contact Resistance: Extremely low and stable, typically < 3 milliohms per mated pair, minimizing voltage drop and power loss in critical circuits.
3. Insulation Resistance: > 10,000 MΩ at 500 VDC, ensuring exceptional isolation between circuits and to the shell, even in high-humidity conditions.
4. Dielectric Withstanding Voltage (DWV): Capable of withstanding 1,800 Vrms for 60 seconds between contacts and from contacts to shell, providing a high safety factor against transient surges.
5. Shielding Effectiveness: Provides >100 dB of EMI/RFI shielding from 100 MHz to 10 GHz, protecting sensitive electronics from interference—a key requirement for modern Aircraft Connector applications near communication systems.

2. Mechanical & Environmental Specifications

These parameters ensure physical durability and reliability in extreme operating conditions.

• Operating Temperature Range: -65°C to +200°C. This extended high-end range is particularly suited for applications near heat sources or in high-temperature industrial settings.
• Vibration & Shock Performance: Qualified to MIL-STD-810, Method 514 and Method 516 for severe vibration and shock profiles, preventing contact discontinuity in the most demanding mobile and airborne platforms.
• Ingress Protection: Rated to IP68 (2m, 24hrs) and IP69K (high-pressure, high-temperature wash-down), making it one of the most rugged series available.
• Mating Durability: Rated for 1,000+ mating cycles (threaded) and 500+ cycles (push-pull) while maintaining all performance specifications.
• Fluid & Chemical Resistance: Seals and materials are resistant to aviation fuels, hydraulic fluids, solvents, and salt spray per MIL-STD-810, Method 509.

Primary Application Sectors and Configuration Logic

1. Aerospace & Defense: Mission-Critical Systems

The YB3TAX is engineered for the most challenging aerospace environments.

• Engine and APU Controls: Direct connections for Full Authority Digital Engine Control (FADEC) units, ignition systems, and sensors on the Aircraft Engine, where high temperature and vibration are paramount.
• Avionics & Weapon Systems: Interconnections for radar, electronic warfare pods, and flight control computers where EMI shielding and environmental sealing are non-negotiable.
• Military Ground Vehicles: Sealed connections for communication, navigation, and fire control systems in tanks and armored personnel carriers.

2. Unmanned & Robotic Systems

Providing robust, lightweight interconnects for autonomous platforms.

• High-End UAV/UAS: As a premium Aviation Connector for Drone solution, it is used for payload (EO/IR, LiDAR), propulsion, and datalink interfaces on tactical and MALE/HALE (Medium/High Altitude Long Endurance) drones.
• Industrial & Hazardous Environment Robotics: Connectors for robotic arms in painting, welding, and explosive ordinance disposal (EOD) applications requiring IP69K wash-down capability.

3. Transportation & Heavy Industry

Extreme reliability for safety-critical ground applications.

• Railway Rolling Stock: Onboard control systems for Train propulsion, braking, and doors, exposed to constant vibration, moisture, and temperature swings.
• Off-Highway & Agricultural Vehicles: Connectors for engine management, transmission control, and implement interfaces in dusty, wet, and high-vibration conditions.
• Energy Sector: Connections within wind turbines, offshore oil platforms, and mining equipment.

Industry Trends: Smart, Lightweight, and Data-Enabled

The connector industry is rapidly evolving, and series like YB3TAX are at the forefront:

• Integrated Sensor Technology: Development of "smart connectors" with embedded sensors for real-time monitoring of mating state, temperature, and moisture ingress, enabling predictive maintenance for critical systems.
• Advanced Lightweight Materials: Incorporation of titanium and advanced composites for shells in weight-sensitive aerospace and UAV applications, without compromising strength or shielding.
• Hybridized Power & High-Speed Data: Evolution of insert designs to incorporate contacts capable of transmitting both high power (for actuators) and high-speed data (for sensors/cameras) within the same ruggedized shell, simplifying system architecture.

5 Critical Technical Evaluation Points for Russian Procurement

Russian technical procurement applies a meticulous, standards-driven assessment for such components:

1. Full GOST-R Certification with IAC AR Endorsement: Requirement for official certification proving the series meets all relevant GOST standards (e.g., GOST 22613, GOST R 50462) and holds approval from the Interstate Aviation Committee (IAC AR) for aviation use, with all documents in Russian.
2. Material Certificates from Approved Domestic Sources: For state contracts, preference for connectors using base materials (aluminum, copper) sourced from CIS-region suppliers with full Russian-language mill certificates and traceability documentation.
3. Arctic-Grade Low-Temperature Validation: Beyond standard -65°C, demand for test reports showing functional integrity (seal elasticity, plasticizer-free inserts, crack resistance) at temperatures down to -70°C or lower, with successful mating/unmating cycles at these extremes.
4. Compatibility with Specialized Russian Test Equipment: Verification that the connector's dimensions and coupling thread are compatible with standard Russian military and aviation test fixtures and mating adapters used in quality control labs.
5. Lifecycle Cost Analysis & Long-Term Support Contract: A formal analysis of total cost of ownership, including expected maintenance intervals (seal replacement), and a guaranteed long-term (15-25 year) support agreement covering spare parts availability and technical assistance.

Installation, Maintenance, and Compliance Guidelines

Best-Practice Installation Procedure

1. Contact Preparation: Use calibrated, tool-specific crimping equipment. Perform pull-force verification on sample crimps to ensure they meet MIL-STD-1344, Method 2036 requirements.
2. Insert Assembly: Insert contacts into the insulator using the correct guide and tool, verifying full seating with a depth gauge.
3. Seal Inspection & Lubrication: Inspect all O-rings for imperfections. Apply a thin film of specified fluorosilicone grease if recommended.
4. Harness Integration: Install the appropriate strain relief backshell, ensuring the cable clamp is correctly torqued to prevent wire pull.
5. Final Mating: For threaded versions, torque the coupling nut to the specified value (e.g., 1.5-2.0 Nm) using a torque wrench. For push-pull, listen for the definitive click.

YM's Integrated Engineering and Manufacturing Capability

The YB3TAX series is a product of YM's vertically integrated manufacturing ecosystem. Our dedicated high-rel connector facility features automated plating lines for consistent gold thickness and advanced injection molding for high-temperature inserts. Our in-house environmental qualification lab subjects samples to extreme tests, including thermal shock from -65°C to +200°C and prolonged IP68 immersion. This level of control ensures every connector meets its published technical details. Our R&D team's recent innovation in composite-overmold sealing for the cable entry has increased the pull-out strength and environmental performance of the YB3TAX, a technology that benefits our entire range of sealed connector solutions for harsh environments.

Frequently Asked Questions (FAQ)

Q1: What is the key difference between the YB3TAX and YB3TPA variants?

A: The suffix typically denotes specific configuration details. "TAX" often indicates a specific insert arrangement, shell material, or plating finish. "TPA" likely refers to a different insert layout or a variant with a specific accessory (like a certain backshell). The core shell and performance specifications are identical. It is essential to consult YM's configuration guide or datasheet to select the exact variant matching your required pin-out and accessories.

Q2: Is the YB3TAX series suitable for use in high-pressure wash-down areas (IP69K)?

A: Yes, specifically qualified variants are. The YB3TAX series is designed to meet IP69K, which involves exposure to high-pressure (80-100 bar) high-temperature water jets from close range. If your application requires this level of protection, you must specify the IP69K-qualified version, which will have specific seal compounds and assembly validations to guarantee performance under that extreme condition.