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N Connector

Your Leading N Connector Supplier

 

Zhenjiang Tongda Electronic Co., Ltd., founded in 1989, is a professional manufacturer of RF connectors, surge protectors, RF cables, adapters, and die-cast parts. With 26,680 m² of facilities and advanced CNC and testing equipment, we provide high-quality products that meet ISO9001, TS16949, ISO14000 and RoHS standards. Tongda serves global markets, including North America and Europe, and is a trusted supplier for leading telecom companies. We focus on innovation, stable quality, and customer-oriented service.

 

 
First 123 Last
 
Why Choose Us?

Rich experience

With decades of experience in RF connectors and related components, Tongda provides mature technologies, stable production processes, and reliable product performance to meet international standards.

Advanced equipment

Equipped with nearly 100 sets of high-precision machinery—such as Brother machining centers, CNC lathes, and automated cutting machines—and comprehensive testing equipment including PIM testers, network analyzers, and environmental test chambers, ensuring strict quality control.

Strong R&D capability & innovation

Cooperating with Southeast University and Jiangsu University, Tongda has established an RF Connector Research Center and received 58 national patents, including 18 invention patents, demonstrating strong technological innovation capability.

Our services

We provide full-cycle service: Customers receive smooth communication, fast processing, and dependable assistance from order to delivery and beyond.

 

 

Types of N Connector
 

By impedance

50 ohm n type connector
Is the most common and standard type N connector impedance type. It is suitable for most wireless and RF applications and provides reliable signal transmission and matching performance. It performs well in applications with a frequency range of 0-11 GHz.

75 ohm n type connector
This is a special type of n-connector impedance used for certain applications, such as video and broadcast equipment. Connectors that use 75 ohms need to ensure that the cables and equipment they are connected to also have the same 75 ohm impedance to ensure signal transmission compatibility and performance.

By connector

N Type Female Connector
The N-type female connector has a center hole and an internal thread for connecting to the corresponding N-type male head.

N Type Male Connector
The Type N male connector has a plug and an external thread for connecting to the corresponding type N female.

N-type Flanged Connector
The N-type flanged connector is bolted and flanged to the device or panel to provide a stable connection.

N-type PCB connector
The N-type PCB connector is designed to be mounted on a printed circuit board (PCB) to provide convenient connectivity.

N-type angle connector
The N-type angle connector has a 90-degree bend design and is suitable for situations where space is limited or corner connections are required

 

 

Applications of N-type Connector：

 

 

 

Telecommunications: Used in base stations, repeaters, and antenna systems

 
 

Communication system: RF signal transmission in cellular base stations.

 
 

Medical equipment: RF testing in medical imaging systems.

 
 

Test and measurement equipment: Provides reliable connections for spectrum analyzers, network analyzers, and other RF testing devices.

 
 

Aerospace and military: Due to their rugged design and high performance, they are often employed in demanding military and aerospace applications.

 
 

Broadcasting: Connecting antennas and transmission lines.

 

 

RF Connector N Female Bulkhead Panel Mount N-50KFD-33-3-1

Dive Deeper into SMA vs. N-Type：

 

 

These two connectors serve quite different purposes, largely dictated by their physical characteristics: 

Size and ruggedness:

N-Type connectors are significantly larger and more robust than SMAs. The larger size allows for thicker conductors and dielectric, contributing to better power handling and mechanical strength. The N-Type coupling nut (5/8-24 thread) is also much larger than the SMA’s (1/4-36 thread).

Power handling:

Due to their larger size and construction, N-Type connectors can typically handle considerably higher average and peak power levels than SMAs. This makes them suitable for transmitter outputs, base station antennas, and industrial applications. Trying to put high power through an SMA can cause overheating or breakdown. I’ve seen SMAs melt under power levels an N-Type wouldn’t even notice.

Frequency range:

Standard N-Type connectors are commonly rated up to 11 GHz. Precision N-Type variants can operate reliably up to 18 GHz. Standard SMA connectors, conversely, are typically rated up to 18 GHz. So, for frequencies between 11 GHz and 18 GHz, either a precision N-Type or an SMA could be chosen based on other factors like power and size.

Weather resistance:

Many N-Type connectors incorporate a gasket or O-ring seal within the coupling mechanism, providing better resistance to moisture and dust ingress compared to typical SMAs. This makes them a preferred choice for outdoor installations.

Impedance:

Both SMA and N-Type are predominantly 50-ohm connectors, essential for matching in most RF systems. However, 75-ohm versions of N-Type connectors also exist (often used in cable TV or video systems), so it’s important to verify the impedance. SMA is almost exclusively 50 ohms.

 

Here’s a comparison:

 

Feature

SMA Connector

N-Type Connector

Size

Small

Large

Ruggedness

Moderate

High

Power Handling

Lower

Higher

Max Frequency

~18 GHz

~11 GHz (Std), ~18 GHz (Prec.)

Weatherproof

Generally Not (unless specific)

Often Yes (with gasket)

Coupling

1/4-36 Thread

5/8-24 Thread

Applications

Internal modules, Test, Low Pwr

Base Stations, High Pwr, Outdoor

 

Product Parameters

 

Impedance

50Ω

Frequency Range

0-6GHz

Working Voltage

≤1000V

VSWR

≤1.15@2.5GHz,≤1.25@6GHz

Insulation Resistance

≥5000mΩ

Withstanding Voltage

2500V

Center Contact Resistance

≤1mΩ

Outer Contact Resistance

≤1mΩ

Center Contact Retention Force

≥0.56N

Durability

500 cycles

 

 

Customization process

 

 

productcate-554-422

 

 

Packing&Shipping

 

 

productcate-500-400
productcate-500-400

 

 

Our Certificate

 

 

productcate-1-1

 

 

FAQ

 

 

Q: How does the type N connector differ from other common connectors such as BNC and SMA?

A: N-type connectors have a higher frequency range and better performance than BNC and SMA connectors and are suitable for higher frequency applications.

Q: How to select the correct type and specification of N-type connectors?

A: Consider the frequency range, cable type, performance requirements, interface type, and special requirements. Refer to the supplier’s specification sheet and product description, or consult a professional or supplier for more advice and help.

Q: What are the common failures and troubleshooting methods?

A: Common failures of type N connectors include loose connections, corrosion, and damage. Troubleshooting methods include checking connections for fastening, cleaning connectors, and replacing damaged connectors. Ensure that the stability and cleanliness of the connector can effectively solve common failure problems.

Q: The N-type connector is suitable for those coaxial cables?

A: The N-type connector is suitable for many different types of coaxial cables, including common coaxial cables such as RG-58, RG-59, RG-6, and LMR series. They are commonly used in wireless communications, television antennas, RF devices, and other applications that require high-frequency transmission.

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