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The Ultimate Space-Saving Solution for High-Density Interconnects
This specialized RG174 coaxial cable assembly bridges the gap between standard test equipment and ultra-miniaturized systems. Featuring a robust BNC Male connector on one end and a precision 10-32 UNF (M5) Microdot Male Plug on the other, this pigtail jumper is designed for applications where space is at a premium and signal integrity is non-negotiable. Ideal for PCB probing, medical sensors, and aerospace subsystems, it provides a reliable 50 Ohm path for frequencies up to 3 GHz.
Feature | Specification |
Product Type | BNC Male to 10-32 UNF Microdot Male |
Cable Model | RG174 / RG174/U |
Impedance | 50 Ohm |
Center Conductor | 20 AWG Solid Copper |
Dielectric | Polyethylene (PE) |
Shielding | 95% Tinned Copper Braid |
Jacket | PVC (Standard), FEP/Silicone options available |
Operating Voltage | 750 Vrms |
Frequency Range | DC to 3 GHz |
VSWR | ≤ 1.30:1 (Typical) |
Temperature Range | -55°C to +105°C (PVC), -55°C to +200°C (FEP) |
RoHS Status | Compliant |
1. RG174: The Balance of Flexibility & Performance
While RG178 is common in micro-coax, RG174 offers a superior balance. It is slightly thicker than RG178, providing better shielding effectiveness and lower loss, yet remains thin enough (2.49mm OD) for tight routing in medical devices and dense electronics.
2. 10-32 UNF (M5) Microdot Interface
The 10-32 UNF thread (commonly known as M5) is the industry standard for miniature RF connections.
Secure Locking: Prevents accidental disconnection in high-vibration environments (e.g., industrial machinery).
Low Profile: The Microdot head is only a few millimeters high, allowing direct mounting on crowded PCBs without obstructing nearby components.
3. BNC: The Universal Test Standard
The BNC Male connector ensures compatibility with 90% of laboratory equipment, spectrum analyzers, and signal generators. This combination eliminates the need for bulky adapter stacks, reducing signal loss and potential failure points.
Medical Electronics: Connecting disposable patient sensors, endoscopic cameras, and internal probes to monitoring equipment.
Aerospace & Defense: Wiring in UAV avionics, radar modules, and cockpit instrumentation where weight and space are critical.
High-Speed Data Acquisition: PCB testing and probing in R&D labs, especially for high-frequency digital signals.
Industrial IoT: Linking compact wireless modules (LoRa, Zigbee) to external antennas or control boards.
Precision Termination Process:
Laser Trimming: Ensures precise stripping of the jacket and dielectric without nicking the center conductor.
Solder & Crimp: The BNC uses a double-crimp (ferrule and strain relief) for mechanical strength. The Microdot utilizes a gas-tight solder connection for low resistance.
100% Testing: Every single cable is tested on a Vector Network Analyzer (VNA) to verify Return Loss and Insertion Loss metrics.
Traceability:
Each batch is serialized, and test data is archived to meet ISO 9001 standards, providing full traceability for your quality assurance needs.
Standard Packaging: Individually poly-bagged to prevent connector damage.
Labeling: Clear labels indicate cable type, length, and batch code.
Carton: Packed in sturdy export cartons suitable for international shipping (ISTA 3A certified).
Lead Time: Standard lead time is 7-10 working days after order confirmation.
Q1: What is the difference between 10-32 UNF and M5?
A: They are the same thing. 10-32 UNF refers to the thread specification (10 threads per inch, Unified National Fine), while M5 refers to the metric diameter (5mm). In the RF connector industry, "Microdot" usually implies the 10-32 UNF thread.
Q2: Can I get this cable with a straight Microdot instead of an angled one?
A: Yes. While the 90-degree (right-angle) Microdot is standard for PCB mounting, we offer Straight (0-degree) Microdot configurations for specific housing designs. Please specify your requirement during the inquiry.
Q3: Is RG174 suitable for outdoor use?
A: The standard PVC jacket is for indoor use. For outdoor or high-temperature environments (e.g., engine bays), we recommend the FEP (Teflon) jacketed version, which is UV resistant and rated up to 200°C.
Q4: What is the minimum order quantity (MOQ)?
A: As an OEM manufacturer, our standard MOQ is 100 pieces. However, we offer sample pricing for prototyping and testing purposes.
This BNC to Microdot pigtail is not just a wire; it is an engineered signal path. By combining the rugged reliability of RG174 with the precision of Microdot technology, we deliver a product that ensures your high-frequency signals arrive intact, every time.
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