J30J-21TJ-D | 21-Pin Micro-D Plug Connector with Anti-Rotation Structure
The J30J-21TJ-D is a 21-pin Micro-D plug connector featuring a 3-row layout, high-reliability twist-pins, and a specialized anti-rotation structure for secure chassis alignment.
999999 in stock
Share:
Product Categories
Request a Quote
J30J-21TJ-D Three-Row High-Density Configuration for Complex Systems
The J30J-21TJ-D is a high-performance Micro-D plug connector engineered to handle high signal counts in space-constrained aerospace and advanced telemetry modules. To accommodate 21 independent contacts without extending the overall connector length, it utilizes a highly compressed 3-row pin layout. This dense physical distribution allows system designers to significantly increase signal capacity within a minimal structural envelope. It is highly effective for applications requiring simultaneous transmission of sensory data, high-frequency logic streams, and specialized grounding lines within a single interconnected interface.
Key Specifications
Shell Material | Voltage Rating | Current Rating | Operating Temp | Mating Cycles |
|---|---|---|---|---|
Aluminum alloy | ~800 VAC | 3 A | -55 °C to +125 °C | >500 |
Advanced Twist-Pin Alignment Across 21 Channels
The technological core of the J30J-21TJ-D is the precision-engineered twist-pin contact system. Each of the 21 male pins consists of elastic wire strands that form a spring-like structure. When mated with a corresponding receptacle, the twist-pins compress to establish multiple points of electrical contact against the internal socket walls. This persistent multi-point engagement prevents signal dropouts caused by mechanical shock or harmonic resonance. The high-tensile copper alloy pins feature high-purity gold plating, ensuring ultra-low contact resistance and uniform insertion forces across the entire 21-contact matrix.
Structural Anti-Rotation Mechanics for Torque Management (-D)
As signal counts increase to 21 pins, the mechanical forces required to mate and unmate the connector rise correspondingly. The J30J-21TJ-D addresses this via its integrated anti-rotation structure, designated by the ‘-D’ suffix. The mounting ears feature specialized geometry that prevents the internal locking nuts from spinning when rotational torque is applied to the jackscrews. This design allows technicians to apply strict tightening torque without using complex secondary tools, ensuring a rigid and secure lock while protecting the delicate internal contact alignments from twisting stresses.
Robust Metal Housing and Electromagnetic Compatibility
Protected by a high-tensile aluminum alloy shell, the J30J-21TJ-D delivers exceptional physical durability and excellent electromagnetic interference shielding. The casing isolates the 21-pin signal matrix from surrounding radio-frequency noise, which is critical for maintaining high signal fidelity in dense electronic racks. The metal housing is finished with advanced plating to resist corrosion, and its distinct D-shaped interface profile provides mechanical polarization. This guarantees that the plug can only be mated in the correct orientation, preventing cross-mating errors during manual maintenance.
Standardized Integration for High-Reliability Upgrades
The J30J-21TJ-D is built in strict accordance with Micro-D industry standards, ensuring total intermateability with any standard 21-pin receptacle of the same series. This high degree of compliance simplifies legacy system refits and upgrades, allowing engineering teams to replace aging hardware without reworking external chassis plates or internal wire layouts. Its dependable operation across wide temperature variations makes it a highly effective solution for UAV control units, naval instrumentation, and tactical communication arrays.
FAQ
What does the 'TJ' signify in the J30J-21TJ-D part number?
What does the 'TJ' signify in the J30J-21TJ-D part number?
The letters ‘TJ’ confirm that the connector is a plug (male type) equipped with specialized pins designed to mate with a corresponding socket receptacle.
How are the 21 contacts arranged within this Micro-D plug?
How are the 21 contacts arranged within this Micro-D plug?
To keep the connector compact, the 21 pins are arranged in a 3-row staggered layout with a 1.27mm contact pitch, maximizing spatial efficiency.
What is the mechanical benefit of the '-D' anti-rotation structure?
What is the mechanical benefit of the '-D' anti-rotation structure?
The ‘-D’ feature prevents the mounting nuts within the connector flange from spinning, allowing technicians to apply precise torque when locking the jackscrews.
How are the wires connected to the backend of this connector?
How are the wires connected to the backend of this connector?
The backend terminals are designed for manual wire termination, allowing technicians to solder custom cables directly to the 21 contacts for high routing flexibility.
Can this 21-pin plug handle high vibration environments?
Can this 21-pin plug handle high vibration environments?
Yes, the combination of multi-contact twist-pins and the anti-rotation locking structure ensures consistent signal continuity even under high mechanical shock.
Certification
- 测试文件后期要删除换成你自己的
