Proven Reliability for Demanding Aerospace Applications
Product Overview
The Military Aviation Connector J599 Series 26FF11SN stands as a testament to proven reliability within the esteemed J599 connector family. Engineered to deliver uncompromising performance in extreme conditions, this connector exemplifies aviation connector with military grade quality. Designed for rigorous military and aerospace environments, it provides a robust, sealed interconnection solution that ensures secure signal and power transmission where failure is not an option. As a military connector for aviation use, its design prioritizes durability, environmental resistance, and long-term reliability, making it a trusted choice for critical system interfaces.
Product Features & Advantages
The J599 26FF11SN distinguishes itself through a combination of rugged design and precision engineering:
- Proven J599 Series Heritage: Benefits from the field-proven reliability and standardization of the J599 (MIL-DTL-38999) series, ensuring compatibility and interchangeability within established military systems—a key advantage over custom or commercial general aviation plugs.
- Advanced Environmental Sealing: Features triple-redundant sealing (interface, insert, and rear) providing superior protection against moisture, dust, and fluids, with performance maintained from sea level to high-altitude conditions.
- High-Reliability Contact System: Equipped with precision aviation grade terminals that offer low and stable contact resistance, ensuring consistent electrical performance over an extended lifecycle of 100,000 mating cycles.
- Secure Coupling Mechanism: The "FF" style coupling provides a robust, vibration-resistant connection crucial for maintaining integrity in high-shock military aviation environments.
- Superior Electrical Insulation: Delivers excellent dielectric strength and high insulation resistance, preventing leakage and ensuring signal integrity in complex aerospace electrical connectors networks.
- Optimized Weight & Durability: Constructed from high-strength, lightweight materials, achieving a weight of less than 3 grams without compromising the ruggedness required for a military aviation plug.
This connector is manufactured as a true aviation type military spec connector plug, adhering strictly to comprehensive army aviation quality control regulations throughout production.
Technical Specifications
The J599 26FF11SN's performance is quantified by precise military connector specifications:
- Series & Configuration: J599 Series, Shell Size 26, FF Coupling Style.
- Coil Power Consumption: 0.3 to 0.43 Watts operational range.
- Contact Performance & Durability:
- Rated Load: 1 Ampere at 28V DC for 100,000 mating cycles minimum.
- Low-Level Signal Capability: Compatible with (10~50) μA at (10~50) mV signals for 100,000 cycles.
- Contact Resistance:
- Initial Value: ≤ 50 milliOhms per contact.
- Value After Life Testing: ≤ 200 milliOhms per contact.
- Dynamic Timing Parameters:
- Action Time: ≤ 4 milliseconds.
- Release Time: ≤ 4 milliseconds.
- Actuation Pulse Width: Adjustable from 10 to 50 milliseconds.
- Dielectric Withstanding Voltage:
- Standard Conditions: 500 Vr.m.s. at 50Hz.
- Low Pressure Conditions: 250 Vr.m.s. at 50Hz.
- Insulation Resistance:
- Initial: > 500 MegaOhms.
- After Endurance Testing: > 50 MegaOhms.
- Weight: Less than 3 grams (complete connector).
- Hermetic Sealing Performance: Maximum leakage rate of 1 x 10-3 Pa·cm³/s.
- Electrical Coil Rating: Specifications referenced at 25°C. Custom voltage configurations available upon request.
Application Scenarios
The rugged reliability of the J599 26FF11SN makes it suitable for diverse demanding applications:
- Military Aircraft Power Distribution: Connections within junction boxes, power panels, and between aircraft power generation systems and loads.
- Avionics & Sensor Interfaces: Reliable interconnections for navigation systems, radar interfaces, and environmental control systems requiring robust sealing.
- Engine & Auxiliary Power Unit (APU) Controls: Interfaces for engine monitoring, control units, and APU start systems in high-vibration, high-temperature zones.
- Ground Support & Armament Interfaces: Connectors for weapons pylons, external fuel tanks, and ground power/ test equipment connections.
- Naval & Military Vehicle Systems: Adapted for use in armored vehicles, naval vessels, and portable military equipment where environmental resilience is critical.
Implementing this connector reduces system vulnerability, lowers lifecycle costs through extended service intervals, and enhances operational readiness through proven reliability.
Recommended Installation Procedure
Follow these steps to ensure optimal performance of the J599 26FF11SN connector:
- Pre-Connection Inspection: Examine the aviation connector plug and mating military Aviation Socket for physical damage, cleanliness, and proper pin alignment.
- Harness Preparation: If performing field assembly, use proper aviation connector soldering techniques or certified crimping tools for aviation grade terminals. Reference appropriate wiring diagrams for pin assignments.
- Connector Alignment: Align the connector key with the socket keyway. For FF-style couplings, ensure proper initial alignment before engagement.
- Mating & Locking: Insert the plug into the socket and engage the FF coupling mechanism according to its specific operation (typically involving push and rotational locking) until a positive, secure lock is achieved.
- Post-Installation Verification: Conduct visual inspection of the locked coupling, perform electrical continuity tests, and ensure cable strain relief is properly secured.
Certifications & Compliance
The J599 26FF11SN is produced under a quality management system designed to meet the stringent requirements of military and aerospace standards. Our manufacturing processes and product testing are aligned with the core principles of relevant army aviation quality control regulations, ensuring that each connector delivers the performance, traceability, and reliability required for defense applications.
Customization Options
We offer tailored solutions within the J599 26FF11SN platform to meet specific operational needs:
- Contact Configuration: Custom pin layouts, selective population, and mixed contact types (signal, power, high-voltage) within the shell size 26 arrangement.
- Environmental & Material Options: Specialized platings (cadmium, zinc-nickel, passivation), conformal coatings, or alternative shell materials for corrosive or extreme temperature environments.
- Backshell & Accessory Variations: Different backshell styles (straight, 45°, 90°), materials (aluminum, stainless steel), and integrated conduit adapters.
- Cable Assembly Services: Complete custom harness assemblies with specified cable types, shielding, lengths, and integration of other connector types like 7 pin aviation connector or 8 pin military connector sub-assemblies.
- Identification & Documentation: Custom laser marking, part numbering, serialization, and provision of detailed installation manuals or wiring diagrams.
Production Process & Quality Assurance
Every J599 26FF11SN connector undergoes a rigorous, controlled manufacturing journey. From precision machining of shell components to automated assembly of contacts and inserts, each step is monitored. Our comprehensive quality assurance includes 100% electrical testing for critical parameters like contact resistance and insulation resistance, dimensional verification, and environmental stress testing on production samples. This ensures each military type connector meets the high-performance standards expected of aviation grade connectors in critical applications.
Frequently Asked Questions (FAQ)
- Q: What is the significance of the "FF" coupling style in the J599 26FF11SN?
A: The "FF" designation indicates a specific coupling mechanism within the J599 series, known for its robust, high-vibration resistance and reliable environmental sealing. It typically features a specific threadless push-pull or bayonet-style lock designed for quick connect/disconnect while maintaining a secure connection under stress. - Q: Is this connector backward compatible with earlier J599 series connectors?
A: The J599 26FF11SN is designed to be intermutable with other J599 Series III connectors of the same shell size (26) and coupling style (FF), ensuring compatibility within systems designed to this specification standard. - Q: What is the operational temperature range for this connector?
A: While electrical ratings are specified at 25°C, the connector is designed to operate reliably across a wide military temperature range, typically from -55°C to +125°C or higher, depending on specific material and sealing configurations. Detailed environmental specifications are available upon request. - Q: Can you supply this connector with rear-release crimp contacts for easier field maintenance?
A: Yes, we offer versions with rear-release contact systems that allow for contact insertion and removal from the rear of the connector without special tools, facilitating easier field repair and harness rework. - Q: How does the J599 series compare to newer miniature connector series for weight-sensitive applications?
A: While newer miniature series offer weight savings, the J599 series provides superior power handling, proven extreme environment performance, and higher contact density in a robust package. For applications where proven reliability under harsh conditions is paramount, the J599 series like the 26FF11SN remains the preferred choice, balancing performance with weight efficiency.
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