50 Ohm RF Connector Adapter N/SMA-KJ with Brass Body and DC-6GHz Frequency Range
N/SMA-KJ is a 50Ω straight RF adapter that connects N female to SMA male. It features a brass body with nickel-plated housing and gold-plated contacts, delivering low insertion loss, excellent VSWR, and stable signal transmission up to 11GHz. With reliable threaded coupling and durable construction, it ensures secure connection and long service life, widely used in communication systems, antennas, test equipment, telecom and various high-frequency RF applications.
| Product model | N/SMA-KJ | Contact resistance SMA |
Center contact:≤3mΩ Outer contact:≤2mΩ |
| Characteristic impedance | 50 ohm | Body material SMA |
Gold-plated brass |
| Frequency range | DC-6GHz | Body material N | Nickel-plated brass |
| Voltage standing wave ratio |
≤1.2 |
Central conductor |
500 times |
| Medium pressure resistance |
≥1000V RMS ,50Hz, at sea level |
SMA screw sleeve |
5 A |
| Dielectric constant |
≥5000MΩ |
Temperature range |
-45℃~+125℃ |
| Contact resistance N |
Center contact:≤1mΩ Outer contact:≤0.2mΩ |
Durability |
≥500 Cycles |








Packaging And Shipping
- Standard export carton
- As per customized specifications such as logo or others According to customers' requirements
- Delivery time:Within 24 hours for stocks, 3-4 weeks for mass production orders. (based on different quantities,ODM, etc.)
Q: Are you trading company or manufacturer?
A: Our company is a comprehensive manufacturer with 17 years of r&d, manufacturing and sales of aerospace and commercial RF microwave transmission components.
Q:What are the main products of your company?
A:Main products: RF coaxial connectors and adapters, RF cable assemblies, miniature rectangular electrical connectors and cable assemblies, coaxial waveguide converters and cable assemblies, glass insulator sealed connectors and other microwave products.
Q: Does your company accept customized products?
A: We accept ODM.
Q: Does your company provide free samples?
A: We support free samples with freight paid on delivery.
Q: What is the minimum order quantity of your company's products?
A: 200 pieces. The price is more expensive under 200 piece .
Q: Which logistics company does your company ship through?
A:Our company cooperates with international logistics companies DHL.UPS,FedexTX,TNT all year round to ensure our customers receive their goods quickly with the lowest shipping cost. There are also air and sea logistics.
Q: How long does it usually take to receive the goods?
A: Generally, 3-8 working days for international express, 5-8 working days for air freight.
Q:What payment methods does your company accept?
A: We accept L/C, T/T, Western Union, Trade Assurance (credit card &T/T)
Q: How long is your warranty?
A: The warranty period is three months.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
