Amphenol BNC to SMA RF Adapters 242102, 242103, 242104, 242123, 242181, 901-164, 901-165, 901-166
Amphenol BNC to SMA RF adapters provide a between-series connection for RF cables, instruments and equipment that use different BNC and SMA interfaces. They are commonly used with signal generators, spectrum analyzers, antennas, RF modules, amplifiers, wireless communication equipment and industrial test systems.
The Amphenol product range includes BNC plug-to-SMA plug, BNC plug-to-SMA jack, BNC jack-to-SMA plug and BNC jack-to-SMA jack configurations. Free-hanging and bulkhead-mount models are available, together with an IP67-rated option for installations requiring a sealed panel interface.
The models listed in this article are 50-ohm, straight adapters with a maximum operating frequency of 4 GHz. However, body finish, contact material, mounting structure, temperature range and environmental rating vary by part number.
For customers purchasing a replacement adapter, the complete Amphenol part number is the most reliable search reference. Two adapters with the same connector configuration may have different materials, dimensions, temperature ratings or mounting hardware.
Technical Specifications
| Parameter | Available Specifications |
| Product Type | BNC to SMA between-series RF adapter |
| Connector Configurations | BNC plug to SMA plug, BNC plug to SMA jack, BNC jack to SMA plug, or BNC jack to SMA jack |
| Impedance | 50Ω |
| Maximum Frequency | 4 GHz |
| Orientation | Straight |
| Mounting Style | Free hanging or bulkhead |
| Body Material | Brass |
| Body Finish | Nickel or gold, depending on model |
| Contact Finish | Gold |
| Contact Material | Brass, phosphor bronze or beryllium copper, depending on model |
| Insulator Material | PTFE |
| Environmental Rating | Not rated or IP67 |
| Operating Temperature | −40°C to +85°C or −65°C to +165°C, depending on model |
| Adapter Type | Between-series |
| Product Status | Active models and selected legacy models with identified replacements |
Amphenol BNC to SMA Adapter Model Comparison
| Part Number | BNC Interface | SMA Interface | Mounting | Impedance | Max. Frequency | Body Finish | Contact Material | IP Rating | Temperature |
| 242102 | Jack | Plug | Free hanging | 50Ω | 4 GHz | Nickel | Phosphor bronze | Not rated | −40°C to +85°C |
| 901-166 | Jack | Plug | Free hanging | 50Ω | 4 GHz | Nickel | Beryllium copper | Not rated | −65°C to +165°C |
| 242103 | Plug | Jack | Free hanging | 50Ω | 4 GHz | Gold | Phosphor bronze | Not rated | −40°C to +85°C |
| 901-165 | Plug | Jack | Free hanging | 50Ω | 4 GHz | Nickel | Brass | Not rated | −65°C to +165°C |
| 242104 | Plug | Plug | Free hanging | 50Ω | 4 GHz | Nickel | Brass | Not rated | −65°C to +165°C |
| 901-164 | Plug | Plug | Free hanging | 50Ω | 4 GHz | Nickel | Brass | Not rated | −65°C to +165°C |
| 242123 | Jack | Jack | Free hanging | 50Ω | 4 GHz | Nickel | Phosphor bronze | Not rated | −40°C to +85°C |
| 242181 | Jack | Jack | Bulkhead | 50Ω | 4 GHz | Nickel | Beryllium copper | Not rated | −65°C to +165°C |
| 242181-10 | Jack | Jack | Bulkhead | 50Ω | 4 GHz | Nickel | Beryllium copper | Not rated | −65°C to +165°C |
| 901-10384 | Jack | Jack | Bulkhead | 50Ω | 4 GHz | Nickel | Beryllium copper | IP67 | −65°C to +165°C |
Legacy Model and Replacement Reference
| Part Number | Configuration | Frequency | Temperature | Product Status | Recommended Replacement |
| APH-SMAJ-BNCP | BNC Plug to SMA Jack | 4 GHz | −40°C to +85°C | Active – Not Recommended for New Design | 242103 |
Inquiry Requirements
To request a quotation for Amphenol BNC to SMA RF adapters, please provide:
Complete Amphenol part number
Required quantity
Target delivery date
Delivery country or region
BNC and SMA connector configuration
Free-hanging or bulkhead requirement
Required IP rating
Maximum operating frequency
Required operating temperature
Customer drawing or datasheet requirement
RoHS or other compliance-document requirement
Whether an alternative part number is acceptable
When the exact part number is unknown, customers can also provide:
A clear photograph of both adapter interfaces
The connector gender required on each side
Panel-mounting dimensions
Equipment or cable model
Existing manufacturer part number
Required application and frequency range
Part numbers with similar descriptions should not be treated as direct replacements until their dimensions, materials and installation requirements have been checked.
Contact Us / Request a Quote
We provide sourcing and quotation support for Amphenol BNC to SMA RF adapters used in RF testing, antenna systems, wireless communication equipment, laboratory instruments and industrial applications.
Models available for inquiry include:
242102, 242103, 242104, 242123, 242181, 242181-10, 901-164, 901-165, 901-166, 901-10384 and APH-SMAJ-BNCP.
Please send us the required Amphenol part number, quantity, delivery destination and target delivery date. We can assist with model confirmation, technical-document requests, sourcing information and quotation support.
Contact us today to request a quote for Amphenol BNC to SMA RF adapters.
DataStorageIC is a distributors for Amphenol's products. If you need to know more about or purchase the product, you can consult DataStorageIC customer service or fill out the RFQ.
