The MCX Female Hex Thread Mount Microstrip Connector from SIPU RF Technology delivers precision-engineered RF performance for compact, high-reliability applications. Rated for DC-6GHz with a characteristic impedance of 50Ω, this connector features a VSWR of ≤1.3 and insertion loss of ≤0.06√F(GHz)dB. With over 25 years of RF manufacturing expertise, SIPU ensures every unit meets MIL and IEC standards through military-grade production lines.
The brass outer conductor and beryllium bronze center contact are both gold-plated for superior conductivity and corrosion resistance. Designed for ≥500 mating cycles and operating temperatures from -65℃ to +125℃, this connector provides stable performance in demanding environments. Its hex thread mount enables secure, wrench-installed fixation that prevents signal instability caused by vibration or accidental disconnection.
| Parameter | Value |
|---|---|
| Model | SIPU-MCX-KYD2-2 |
| Characteristic Impedance | 50Ω |
| Frequency Range | DC-6GHz |
| VSWR | ≤1.3 |
| Insertion Loss | ≤0.06√F(GHz)dB |
| Dielectric Withstanding Voltage | 750V |
| Insulation Resistance | ≥1,000MΩ |
| Contact Resistance (Center) | ≤4.0mΩ |
| Contact Resistance (Outer) | ≤2.5mΩ |
| Mating Cycles | ≥500 |
| Operating Temperature | -65℃ to +125℃ |
| Orientation | Straight |
| Interface Gender | Female |
| Outer Conductor Material | Brass, gold plating |
| Center Conductor Material | Beryllium bronze, gold plating |
| Dielectric Material | PTFE |
The microstrip structure allows direct PCB mounting with minimal vertical clearance. This configuration reduces signal path length and insertion loss, making it ideal for high-density circuit boards in telecommunications and test equipment.
Your design teams will appreciate the reduced footprint compared to traditional SMA interfaces. The compact profile frees up valuable PCB real estate without sacrificing RF performance.
Unlike snap-on MCX connectors, the hex thread mount provides positive mechanical locking and reliable bulkhead grounding. This design prevents rotation during cable mating and resists vibration-induced disconnection.
You can install the connector using a standard wrench with precise torque control. This ensures consistent contact pressure and long-term connection stability in mobile platforms and industrial equipment.
Gold-plated brass and beryllium bronze construction delivers exceptional electrical conductivity and mechanical durability. The PTFE dielectric maintains low loss and stable performance across the full temperature range.
Each batch undergoes RoHS environmental testing and plating thickness verification. This quality control ensures your assemblies meet international compliance standards.
SIPU implements comprehensive testing protocols for every production batch of the MCX Female Hex Thread Mount Microstrip Connector. Dimensional inspection uses high-precision CMM equipment to verify thread pitch and microstrip pin co-planarity.

Electrical performance validation includes dielectric withstanding voltage testing at 750V and insulation resistance measurement exceeding 1,000MΩ. These parameters are verified using calibrated test instruments rather than VNA sweep testing.
Environmental qualification involves salt spray testing per ASTM B117 for corrosion resistance verification. Thermal shock testing confirms dielectric stability across the -65℃ to +125℃ operating range.
Mechanical integrity checks include torque testing of the hex nut and mating force verification. Each batch receives plating thickness measurement and adhesion testing to ensure coating durability.

In avionics navigation systems, the threaded mount ensures the connector remains properly seated despite constant engine vibration and thermal cycling. The MCX Female Hex Thread Mount Microstrip Connector provides reliable signal transmission in cockpit instrumentation and telemetry modules.
UAV flight control systems benefit from the secure mechanical fixation under extreme G-forces. The connector maintains signal integrity where snap-on alternatives might introduce intermittent contact or failure.
Small cell base stations utilize these connectors for internal RF routing on high-density PCBs. The compact microstrip interface supports tight integration while the hex thread mount withstands environmental stress from wind and temperature fluctuation.
Your infrastructure deployments gain from the secure external antenna interface that prevents signal degradation. The space-efficient design enables more RF channels per unit volume.
Portable ultrasound and MRI sub-modules require non-magnetic, low-loss signal transitions for high-resolution imaging. The connector's PTFE dielectric and precision microstrip launch maintain signal purity in EMI-sensitive medical environments.
The hex thread mount prevents accidental disconnection during device relocation or field use. This mechanical security is critical for maintaining diagnostic accuracy in clinical settings.

Q: Why choose hex thread mount over standard snap-on MCX?
A: The hex thread provides positive mechanical locking and bulkhead grounding, preventing accidental disconnection caused by movement or vibration. This design offers superior connection stability in mobile and high-vibration applications.
Q: What PCB pad layout do you recommend for the microstrip transition?
A: Match your trace width to the connector's pin width and adjust ground plane clearance to maintain 50Ω impedance. SIPU provides detailed footprint files with dimensional tolerances for optimal RF performance.
Q: How does panel thickness affect hex nut mounting?
A: This connector accommodates panel thicknesses from 0.8mm to 2.5mm. Exceeding this range may result in insufficient thread engagement or mechanical stress on the connector body.
Q: What plating ensures best solderability on the microstrip lead?
A: Gold plating offers excellent solderability and prevents oxidation during storage. SIPU applies controlled plating thickness verified through batch testing for consistent assembly performance.
Q: Can this connector operate beyond the 6GHz rating?
A: While rated for DC-6GHz, the design maintains acceptable VSWR for many applications up to higher frequencies. However, you should conduct application-specific testing to verify performance margins for your requirements.

Our MCX Female Hex Thread Mount Microstrip Connector's team provides technical consultation and rapid sample support.
Contact SIPU RF Technology at info@sipuconn.com
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