BIRD 5-702-2 Connector Sma Female Rf Spin Sma.
( Brand: Bird ), ( Manufacturer Part Number: 5-702-2 ), ( Type: Sma Female Rf Connector ), ( Unit Type: Unit ), ( Color: Gold ), ( Connector B: Solder Cup, 0.2485 Od ), ( Connector A: Sma Female, 1/4 36 Uns ), ( Features: Gold Plated ), ( Country Of Origin: United States )
Review BIRD Lot Of Connector Sma. Female Rf Spin in Type
The **Bird 5-702-2 SMA Female RF Spin-In Connector** is a high-performance, precision-engineered RF (radio frequency) connector designed for demanding applications in telecommunications, broadcasting, satellite communications, and professional audio/video systems. This robust connector features a **reverse-polished SMA (SubMiniature version A) female interface**, ensuring a secure and reliable connection with minimal signal loss, making it ideal for high-frequency applications ranging from 9 kHz to 18 GHz. The **spin-in design** eliminates the need for tools, allowing for quick and easy installation by simply twisting the connector into place, which reduces installation time and minimizes the risk of damage to delicate coaxial cables. Constructed from **brass with a gold-plated contact surface**, this connector ensures exceptional conductivity and corrosion resistance, maintaining signal integrity even in harsh environments. The **threaded body** provides a tight seal, preventing moisture and debris from entering the connection, while the **smooth, rounded exterior** prevents snagging or scratching of cables during installation or removal. The **solder lug** at the base allows for secure attachment to printed circuit boards (PCBs) or other mounting surfaces, ensuring stability in fixed installations. Whether used in field deployments, studio setups, or permanent installations, the Bird 5-702-2 delivers durability, consistency, and superior RF performance, making it a trusted choice for professionals who demand reliability in their signal transmission systems.
The **Bird 5-702-2** is a **SMA female RF spin-in connector**, commonly used in RF applications such as antennas, test equipment, and signal distribution systems. Below is a detailed analysis of its pros and cons, followed by a conclusion and recommendation.
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### **Pros of the Bird 5-702-2 SMA Female Spin-In Connector**
1. **High Reliability and Durability**
The Bird 5-702-2 is a well-established, industrial-grade connector designed for harsh environments. It features a **spin-in (push-on) mechanism**, which eliminates the need for frequent tightening or loosening, reducing wear and tear over time. This makes it ideal for field applications where connectors are frequently connected and disconnected.
2. **Good RF Performance**
The connector maintains **low insertion loss** and **high return loss** across a wide frequency range (typically up to **18 GHz**, though performance varies by application). The **SMA (SubMiniature version A) design** provides a good balance between size and performance, making it suitable for many RF systems.
3. **Easy Installation and Removal**
The **spin-in feature** allows for quick and secure connections without requiring tools. This is particularly useful in field deployments where speed and ease of use are critical. The connector also has a **threaded outer shell**, which helps prevent accidental disconnections.
4. **Weatherproof and Rugged Construction**
The **solder-seal design** (when properly installed) prevents moisture ingress, making it suitable for outdoor and industrial applications. The **metal housing** provides mechanical strength, resisting vibrations and physical stress.
5. **Compatibility with Various RF Devices**
The SMA standard is widely used in **antennas, test equipment (vector network analyzers, spectrum analyzers), RF amplifiers, and coax cables**. The spin-in version is particularly popular in **field-serviceable applications**, such as cell towers, satellite links, and microwave systems.
6. **Cost-Effective for High-Volume Applications**
While not the cheapest connector on the market, the **Bird 5-702-2 is durable enough to justify its cost in long-term use**, reducing downtime and replacement costs.
7. **Backward Compatibility**
It is **thread-compatible with standard SMA connectors**, meaning it can be used with existing SMA-based systems without modification.
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### **Cons of the Bird 5-702-2 SMA Female Spin-In Connector**
1. **Higher Cost Compared to Standard SMA Connectors**
The **spin-in mechanism adds complexity** to manufacturing, making it more expensive than a basic **SMA female connector** (e.g., a standard threaded SMA). For applications where frequent disconnections are not required, a simpler SMA connector may suffice.
2. **Potential for Misalignment or Improper Installation**
The **spin-in design requires careful handling** if not fully seated, it may not provide a secure connection, leading to **signal degradation or loose connections**. Unlike threaded connectors, there is no tactile feedback to confirm a proper seal, which can be a concern for inexperienced users.
3. **Limited Frequency Range in Some Applications**
While the **Bird 5-702-2 performs well up to 18 GHz**, some high-frequency applications (e.g., **millimeter-wave systems**) may require **specialized connectors** with lower loss and better impedance control.
4. **Not Ideal for Extremely High-Power Applications**
While it handles **moderate RF power levels well**, it is **not designed for high-power applications** (e.g., **kW-level transmitters**). In such cases, **N-type or TNC connectors** may be more appropriate due to their better power-handling capabilities.
5. **Soldering Required for Permanent Installations**
For **permanent installations**, the connector must be **soldered to the PCB or cable**, which adds complexity compared to **crimp-style connectors**. This may not be ideal for **quick prototyping or field modifications**.
6. **Size and Bulkiness Compared to Miniature Connectors**
While SMA is already a compact standard, some **miniature connectors (e.g., MCX, TNC)** offer smaller form factors for space-constrained applications. However, this comes at the cost of slightly higher loss and lower power handling.
7. **Potential for Oxidation Over Time**
Like all metal connectors, the **Bird 5-702-2 can suffer from oxidation** if not properly maintained, leading to **increased contact resistance**. Regular cleaning and **anti-oxidation treatments** (e.g., gold plating on contacts) can mitigate this issue.
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### **Conclusion**
The **Bird 5-702-2 SMA female spin-in connector** is an **excellent choice for applications requiring frequent connections, durability, and reliable RF performance**. Its **spin-in mechanism reduces wear and tear**, making it ideal for **field-serviceable systems** such as antennas, test equipment, and distributed RF networks.
However, if **cost is a major concern** or if the application involves **high-frequency, high-power, or space-constrained environments**, alternative connectors (e.g., **standard SMA, N-type, or TNC**) may be more suitable.
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### **Recommendation**
- **Buy the Bird 5-702-2 if:**- You need a **durable, field-serviceable connector** with **low insertion loss**.
- Your application involves **frequent connections/disconnections** (e.g., antenna testing, field deployments).
- You require **weatherproof and rugged performance** in outdoor or industrial settings.
- You are working within the **SMA standard** and need a **spin-in solution**.
- **Consider alternatives if:**- You need **lower cost** (opt for a standard SMA connector).
- Your application involves **extremely high frequencies (>20 GHz)** or **high power (>50W)** (consider **N-type or TNC**).
- You require **miniaturization** (e.g., **MCX, U.FL** for portable devices).
- You need **quick prototyping** without soldering (e.g., **crimp-style connectors**).
For most **RF field applications**, the **Bird 5-702-2 remains a strong, reliable choice** due to its balance of **performance, durability, and ease of use**. Always ensure proper installation (full spin-in, soldering if permanent) to maximize its benefits.
Details:
Coupling Mechanism: Threaded 1/4 - 36 UNS for secure, low-attenuation connections. They are commonly used in RF, microwave, and test equipment for a secure, mechanically robust connection. SMA Sub Miniature version A connectors are semi-precision coaxial RF developed in the 1960s as a minimal connector interface for cable with screw-type coupling mechanism. Lot of 2 - BIRD 5-702-2 Connector, SMA.
SMA RP Female Male Pin, Spin-In. Free Domestic Shipping. Female RF Connector, Spin-in/Solder Type. Industries: Aerospace, defense radar, and medical devices.
These connectors feature gold-plated bodies withhold-plated contacts to ensure low signal loss and high conductivity. Proudly Made in USA. Contact: Gold Plated Beryllium Copper Ecu. Impedance: 50 Ohms.
Specifically designed for RF applications needing secure, durable connections. Material: Gold Plated Machined Brass Construction, PTFE Fluorocarbon Dielectric. Applications: The SMA connector is most commonly use din microwave systems, hand-held radio and mobile telephone antennas and, more recently, with WiFi antenna systems USB software defined dongles. An SMA Female Spin-in type connector often referred to as a spin-in or drop-in adapter/connector in specialized, sometimes older proprietary RF documentation is specific configuration of Sub Miniature version A SMA where the connector body portion it designed be threaded screwed directly into prepared housing, panel, device chassis rather than being soldered or crimped outside.
part #: 57022 price
- $22.98
specifications coaxcabl:
- brand: Bird
- mpn: 5-702-2
- type: Sma Female Rf Connector
- unit type: Unit
- color: Gold
- connector b: Solder Cup, 0.2485 Od
- connector a: Sma Female, 1/4 36 Uns
- features: Gold Plated
- country of origin: United States
general coaxcabl:
- Radio Communication > Parts Accessories > Coax Cables Connectors
- condition: New
seller coaxcabl:
- city: Mentor, Ohio
- # reviews: 4077
- rating: 100.0%
offer coaxcabl:
- availability: In Stock
- best offers: True
- options: Ship-to-home
- sold: 0
- started: February 13, 2026
payments coaxcabl:
- cash
- other
- wallet: Apple-pay
- credit card: Discover
shipping coaxcabl:
- type: Calculated
- carrier: USPS, UPS
- class: Standard, Expedited
- cost: $0.00
- service: USPS First Class, USPS Priority Mail, UPS Ground
- transit: 5-11 Days
returns coaxcabl:
- policy: Returns Accepted
- paid by: Buyer
- method: Money back
- time: 30 Days
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