
( Brand: Sealectro ), ( Manufacturer Part Number: 51-075-6801 ), ( Compatible Brand: 28-24390j05, 151-342-1, 1250-1237, 291162-1, 51-075-6801-220, 28- ), ( Type: Connector ), ( Unit Type: Unit ), ( Color: Gold ), ( Connector B: Smb Male ), ( Connector A: Bnc Female Receptacle ), ( Features: Gold Plated, Panel Mount ), ( Country Of Origin: United States )
The **Sealectro 51-075-6801 ITT Cannon 5935-00-988-5646 BNC/SMB Connector** is a high-performance, precision-engineered RF/microwave transition module designed for seamless connectivity between BNC (Bayonet Neill-Concelman) and SMB (SMA-like Miniature) coaxial interfaces. This robust connector is engineered to deliver exceptional signal integrity, low insertion loss, and superior resistance to environmental stressors, making it an ideal choice for demanding applications in test and measurement, aerospace, defense, and industrial automation systems. The connector features a robust brass construction with a gold-plated contact interface, ensuring minimal signal degradation and reliable performance across a broad frequency spectrum, typically ranging from DC up to several gigahertz. Its compact yet durable design incorporates a bayonet-style locking mechanism for secure mating, reducing the risk of accidental disconnection during operation. The SMB side of the connector adheres to the ITT Cannon 5935 series standards, offering a versatile interface compatible with a wide range of RF equipment, including signal generators, spectrum analyzers, and oscilloscopes. Meanwhile, the BNC side maintains backward compatibility with legacy systems while providing the added benefit of a more secure connection compared to traditional threaded connectors. The Sealectro 51-075-6801 is constructed with high-grade materials, including a durable polymer housing and corrosion-resistant plating, ensuring longevity and reliability in harsh environments. Its modular design allows for easy integration into custom cable assemblies, patch panels, or test fixtures, making it a versatile solution for both OEM and field-service applications. Whether used in laboratory settings, field deployments, or high-reliability industrial systems, this connector delivers consistent performance, minimizing signal loss and maximizing operational efficiency.
### Pros and Cons of buying a Selectron 51-075-6801 (ITT Cannon 5935-00-988-5646) BNC/SMB Connector
#### **Pros:**1. **Compatibility** This connector is designed for high-frequency applications, making it suitable for RF, microwave, and test equipment where BNC and SMB (reverse-polared BNC) interfaces are commonly used. It ensures seamless integration with existing systems that rely on these standards.
2. **Durability and Reliability** The ITT Cannon (now part of TE Connectivity) brand is known for producing robust, high-quality connectors. The 5935 series is designed for repeated mating cycles, reducing the risk of signal degradation or mechanical failure over time.
3. **Signal Integrity** BNC and SMB connectors are widely used in RF and coaxial applications due to their excellent shielding and low insertion loss. This connector maintains signal quality, which is critical for precise measurements in test and measurement equipment.
4. **Widespread Availability** As a legacy but still widely used connector, replacement parts are relatively easy to find, whether from original manufacturers or third-party suppliers. This reduces the risk of obsolescence.
5. **Cost-Effective for Specific Applications** While not the cheapest connector on the market, its performance justifies the cost in professional and industrial settings where reliability is paramount.
6. **Backward Compatibility** The SMB variant (reverse-polared BNC) allows for easy swapping between BNC and SMB devices without additional adapters, providing flexibility in cabling setups.
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#### **Cons:**1. **Aging Design** The BNC and SMB standards are decades old, and while they remain functional, they lack the modern advancements in miniaturization, ease of use, or automation-friendly features found in newer connectors (e.g., SMA, TNC, or push-pull designs).
2. **Potential for Loose Connections** Over time, repeated mating can cause wear on the threads or contacts, leading to intermittent connections or signal loss. This requires periodic inspection and maintenance.
3. **Bulkiness Compared to Modern Alternatives** BNC connectors are larger than smaller RF connectors like SMA or TNC, which may be less convenient in space-constrained applications.
4. **Limited Automation Support** Unlike newer connectors with push-pull or screw-less designs, BNC/SMB connectors require manual tightening, which can be cumbersome in automated or high-volume production environments.
5. **Potential for Misalignment** The threaded design can sometimes lead to misalignment if not properly seated, which may cause signal reflections or damage to the connector over time.
6. **Higher Insertion/Removal Force** Compared to push-pull connectors, BNC/SMB connectors require more force to mate or unmate, which can be tiring in frequent use scenarios.
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### **Conclusion:**The **Selectron 51-075-6801 (ITT Cannon 5935-00-988-5646) BNC/SMB connector** is a reliable choice for applications where **legacy compatibility, high-frequency performance, and durability** are critical. It excels in **RF, test and measurement, and industrial environments** where signal integrity and repeated use are essential. However, its **aging design, bulkiness, and manual mating requirements** make it less ideal for modern, space-constrained, or high-automation applications.
If you are working with **existing equipment that exclusively uses BNC/SMB connectors** or require a **proven, high-performance solution for RF applications**, this connector is a solid investment. For **new designs or applications where miniaturization, ease of use, or automation is a priority**, considering newer connector types (e.g., SMA, TNC, or push-pull variants) may be more advantageous.
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### **Recommendation:** - **Buy if:**- You are maintaining or repairing **legacy RF or test equipment** that requires BNC/SMB connectors.
- Your application demands **high-frequency performance with minimal signal loss**.
- You need a **durable, widely available connector** for industrial or professional use.
- **Avoid if:**- You are designing **new systems** where smaller, more modern connectors (e.g., SMA) would be preferable.
- Your setup involves **high automation or frequent manual connections**, as the threaded design may become cumbersome.
- You are working in a **space-constrained environment** where bulkier connectors are impractical.
For most **new projects**, evaluating alternatives like **SMA or TNC connectors** could offer better long-term flexibility and ease of use. However, for **existing setups requiring BNC/SMB**, this connector remains a dependable choice.
Note: No Shelf Life. Contact Gender: BNC Female Receptacle to SMB Male Plug. Frequency Range: 4 GHz. Bulkhead to SMB Plug 50 Ohm Snap-On.
Materials: Typically features gold-plated housing and contacts for superior conductivity corrosion resistance. Housing Gender: BNC Receptacle, Bulkhead. RF Connector. Mounting Type: Panel, Flange.
The Sealectro 51-075-6801 often branded by ITT Cannon is a 50 Ohm high-performance RF coaxial adapter designed to bridge BNC and SMB connections. ITT Cannon Sealectro - 51-075-6801 5935-00-988-5646- Connector, BNC to SMB.