AMPHENOL RF 31-321-RFX Coaxial Bnc Straight Crimp Plug Male 45 31-320-RFX Pin

( Brand: Amphenol Rf ), ( Manufacturer Part Number: 31-321-RFX ), ( Type: Coaxial Connector Kit ), ( Color: Silver ), ( Connector A: Coaxial Bnc ), ( Output Voltage: 1.5 V ), ( Also Known As: 031-321-rfx, 031321rfx )

Review AMPHENOL RF Lot Of 45 New Coaxial Bnc Straight Crimp Plug Male Pin

The **Amphenol RF 31-321-RFX 45 31-320-RFX Coaxial BNC Straight Crimp Plug (Male Pin)** is a high-performance, precision-engineered connector designed for demanding RF and microwave applications where reliability, signal integrity, and durability are paramount. This robust BNC-style crimp plug is part of Amphenol RF s **RFX series**, a line of connectors optimized for superior performance across a broad frequency spectrum, making it an ideal choice for test and measurement equipment, military/aerospace systems, industrial automation, and high-speed data transmission applications. Constructed from **high-strength brass with a gold-plated (24 " minimum) contact interface**, this connector ensures minimal signal loss and excellent resistance to corrosion, even in harsh environmental conditions. The **male pin design** provides a secure, repeatable connection when mated with a female BNC socket, while the **crimp-style construction** guarantees a tight, vibration-resistant fit that maintains signal fidelity under mechanical stress. The **45-degree angled pin** further enhances its suitability for compact or space-constrained installations, reducing interference and improving cable management in dense panel layouts. With a **frequency range extending up to 4 GHz** (and beyond with proper cable selection), this connector delivers consistent impedance (typically **50 **), low return loss, and high power handling capabilities, making it well-suited for applications requiring stable RF performance. Whether used in laboratory setups, field deployments, or industrial automation, the **31-321-RFX and 31-320-RFX** connectors offer a perfect balance of mechanical robustness and electrical precision, ensuring dependable performance in both temporary and permanent installations. Their **crimp-on design** also simplifies assembly, allowing for quick and efficient termination without the need for soldering, while the **durable nylon or brass housing** provides resistance to abrasion and environmental contaminants. For engineers and technicians demanding the highest standards in RF connectivity, these Amphenol RF connectors represent a trusted, long-lasting solution for maintaining signal integrity in critical applications.

### **Pros and Cons of Buying Amphenol RF 31-321-RFX and 31-320-RFX Coaxial BNC Straight Crimp Plugs (Male Pin)**

1. **High-Quality Construction** Amphenol RF is a well-known manufacturer in RF and coaxial connectors, known for durability and reliability in demanding applications. These connectors are designed for professional use, ensuring long-term performance.

2. **Reliable Performance in RF Applications** The **RFX series** is optimized for high-frequency signals, making it suitable for test equipment, broadcast, and industrial RF systems where signal integrity is critical.

3. **Crimp-On Design** The **straight crimp plug** design allows for easy installation on pre-crimped cables, reducing the need for soldering and minimizing signal loss at the connection point.

4. **BNC Compatibility** The **BNC (Bayonet Neill-Concelman) male pin** ensures compatibility with a wide range of BNC-based equipment, making these connectors versatile for various applications.

5. **Resistant to Environmental Factors** The connectors are often constructed with materials that resist corrosion, moisture, and temperature fluctuations, improving longevity in harsh environments.

6. **Standardized and Trusted Industry Solution** Amphenol RF connectors are widely used in professional RF, telecommunications, and test equipment, meaning they are easily replaceable and supported by technical resources.

7. **Cost-Effective for Bulk Use** While individual connectors may seem expensive, purchasing in bulk can be cost-effective for long-term projects or high-volume applications.

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1. **Higher Upfront Cost** Compared to generic or lower-end connectors, Amphenol RF products are more expensive, which may be a barrier for budget-conscious buyers or small-scale projects.

2. **Requires Proper Crimping Tools** Since these are **crimp-on connectors**, improper crimping can lead to poor signal integrity or connector failure. Users must invest in quality crimping tools and ensure proper installation techniques.

3. **Not Ideal for Frequent Connections/Disconnections** While durable, BNC connectors are not designed for repeated mating/unmating (unlike some modular connectors). Frequent use may lead to wear and eventual failure.

4. **Limited Color Coding** Unlike some other connectors, these Amphenol RF BNC plugs do not come in multiple color options, which may be a drawback for cable management in complex setups.

5. **Potential for Counterfeit Products** Due to their popularity, there is a risk of purchasing counterfeit or low-quality knockoffs, which may fail prematurely or degrade signal quality.

6. **Not Plug-and-Play for All Devices** While BNC is widely supported, some modern equipment may prefer alternative connectors (e.g., SMA, TNC), requiring additional adapters.

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The **Amphenol RF 31-321-RFX and 31-320-RFX coaxial BNC straight crimp plugs** are **excellent choices for professional RF applications** where reliability, signal integrity, and durability are critical. They are well-suited for **test equipment, broadcast, industrial RF systems, and high-frequency signal transmission** where generic connectors may fail.

However, they come with **higher costs, the need for proper crimping tools, and limitations in frequent mating/unmating**. If budget is a concern, alternatives like **high-quality generic BNC connectors** (from reputable brands) may offer similar performance at a lower cost though with slightly reduced longevity.

- You are working in a **professional RF environment** where reliability is non-negotiable.

- You have **proper crimping tools** and experience in cable preparation.

- You need **long-term durability** in demanding conditions.

- You require **standardized, high-performance connectors** for critical applications.

- You are on a **tight budget** and can find equally reliable generic BNC connectors.

- You need **frequent connections/disconnections** (consider SMA or modular connectors instead).

- You are unsure about **proper crimping techniques** (training or hiring a professional may be necessary).

For most **serious RF applications**, these Amphenol RF connectors are a **strong, well-supported choice** worth the investment. For casual or budget-limited use, a **reputable generic BNC connector** (from brands like **Molex, U.FL, or LEMO**) may suffice. Always verify the **source** to avoid counterfeit products.

Details:

Each connector is also in an individual bag. NEW LOT OF 45 AMPHENOL BNC MALE CRIMP CONNECTORS model 31-320, Amphenol 31-320-RFX RF Coaxial BNC, Straight Crimp Plug Male Pin.

part #: 31321 prices

• $9.99-$25.00

specifications coaxcabl:

• brand: Amphenol Rf
• mpn: 31-321-rfx
• type: Coaxial Connector Kit
• color: Silver
• connector a: Coaxial Bnc
• output voltage: 1.5 V
• also known as: 031-321-rfx, 031321rfx

returns coaxcabl:

• policy: No Returns

shipping coaxcabl:

• transit: 5-9 Days
• carrier: FedEx
• class: Economy
• cost: $8.62
• type: Calculated
• service: FedEx Ground Economy

seller coaxcabl:

• # reviews: 25
• rating: 100.0%
• city: Napa, California

payments coaxcabl:

• credit card: Diners-club
• other
• wallet: Paypal

general coaxcabl:

• condition: New
• Radio Communication > Parts Accessories > Coax Cables Connectors

offer coaxcabl:

• started: March 19, 2026
• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 1

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