Amphenol RF 901-166 Coaxial Connector Adapter: Equivalent & Substitute Parts

Part Overview

The Amphenol RF 901-166 is an active coaxial connector adapter designed to convert between BNC Jack (Female Socket) and SMA Plug (Male Pin) configurations. This adapter operates at 50 Ohms impedance with a maximum frequency rating of 4 GHz and supports operating temperatures from -65°C to 165°C. The part is RoHS3 compliant and REACH affected, with gold-plated center contacts and a beryllium copper body finished in gold and nickel. Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part's specifications, enabling direct functional replacement in applications requiring BNC-to-SMA conversion.

Substiute Parts

901-166

Amphenol RFIn Stock: 1203901-166 Datasheet

Current PartRFQ

1058083-1

TE Connectivity AMP ConnectorsIn Stock: 9071058083-1 Datasheet

DirectRFQ

4290

Pomona ElectronicsIn Stock: 17404290 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 901-166 are identified based on functional equivalence across critical electrical and mechanical parameters. The substitution logic requires alignment in the following areas:

Electrical Parameters:

• Impedance: 50 Ohms (mandatory match)
• Frequency - Max: Minimum 4 GHz capability
• Center Contact Plating: Gold
• Dielectric Material: Polytetrafluoroethylene (PTFE)

Mechanical Parameters:

• Adapter Type: Plug to Jack
• Conversion Type: Between Series (BNC to SMA)
• Center Gender: Female to Male
• Fastening Type: Bayonet Lock, Threaded
• Style: Straight
• Mounting Type: Free Hanging (In-Line)

Environmental & Compliance Parameters:

• Operating Temperature Range: Minimum -65°C to 125°C
• RoHS Status: RoHS Compliant or RoHS3 Compliant
• REACH Status: REACH Affected or REACH Unaffected
• Moisture Sensitivity Level: 1 (Unlimited)

Two substitute parts meet these criteria: TE Connectivity AMP Connectors 1058083-1 and Pomona Electronics 4290. Both provide equivalent BNC-to-SMA conversion functionality with matching impedance, connector configuration, and environmental ratings.

Parameter Comparison

Engineering Selection Recommendations

Amphenol RF 901-166 remains the primary specification when the application requires the full operating temperature range of -65°C to 165°C. This part is RoHS3 compliant and REACH affected, meeting stringent environmental standards for regulated markets.

TE Connectivity AMP Connectors 1058083-1 serves as a direct functional substitute with equivalent electrical performance at 50 Ohms and 4 GHz maximum frequency. This part operates within -65°C to 125°C, suitable for applications not requiring the extended upper temperature limit of the primary part. RoHS compliance and REACH affected status align with regulatory requirements. The stainless steel body material provides alternative corrosion resistance characteristics compared to the beryllium copper construction of the primary part.

Pomona Electronics 4290 provides enhanced frequency capability at 12.4 GHz maximum, exceeding the 4 GHz specification of the primary part. This part maintains the full -65°C to 165°C operating temperature range and is RoHS3 compliant. The REACH unaffected status indicates this part does not contain substances of very high concern, offering an alternative compliance profile. The beryllium copper body material matches the primary part's construction.

Selection between substitute parts depends on application-specific requirements for operating temperature range, frequency headroom, and regulatory compliance status. All three parts maintain 50 Ohms impedance, identical connector configurations, and PTFE dielectric materials essential for RF signal integrity.

Frequently Asked Questions (FAQ)

Q: Can TE Connectivity 1058083-1 replace Amphenol RF 901-166 in all applications?

A: TE Connectivity 1058083-1 provides electrical and mechanical equivalence for BNC-to-SMA conversion at 50 Ohms impedance. The primary difference is the operating temperature range: TE Connectivity operates to 125°C maximum versus 165°C for Amphenol RF. Applications operating within -65°C to 125°C can use this substitute without functional impact. Applications requiring sustained operation above 125°C require the Amphenol RF part.

Q: What is the frequency capability difference between the substitute parts?

A: Amphenol RF 901-166 and TE Connectivity 1058083-1 both specify 4 GHz maximum frequency. Pomona Electronics 4290 specifies 12.4 GHz maximum frequency, providing additional frequency headroom. For applications operating below 4 GHz, all three parts are functionally equivalent. Applications requiring operation above 4 GHz must use Pomona Electronics 4290.

Q: Are there compliance differences between the substitute parts?

A: All three parts are EAR99 classified and carry ECCN designation. Amphenol RF 901-166 and TE Connectivity 1058083-1 are REACH affected, indicating they may contain substances of very high concern. Pomona Electronics 4290 is REACH unaffected. RoHS compliance differs: Amphenol RF and Pomona Electronics are RoHS3 compliant, while TE Connectivity is RoHS compliant. Selection depends on specific regulatory requirements for the end application.

Q: Do the substitute parts have identical mating cycle ratings?

A: Amphenol RF 901-166 specifies 500 mating cycles. TE Connectivity 1058083-1 and Pomona Electronics 4290 do not provide mating cycle specifications in available documentation. For applications with defined mating cycle requirements, Amphenol RF 901-166 provides explicit mechanical durability data.

Q: What body material differences exist between the parts?

A: Amphenol RF 901-166 uses beryllium copper and brass with gold and nickel finish. TE Connectivity 1058083-1 uses brass and stainless steel with nickel and passivated finish. Pomona Electronics 4290 uses beryllium copper with gold and nickel finish. Stainless steel construction in TE Connectivity provides enhanced corrosion resistance in certain environmental conditions. Material selection impacts mechanical durability and environmental performance.

Q: Can these adapters be used interchangeably in existing installations?

A: All three parts maintain identical connector configurations (BNC Jack to SMA Plug), impedance (50 Ohms), and straight in-line mounting style. Physical interchangeability is confirmed. Electrical performance is equivalent within specified frequency ranges. Installation compatibility depends on application-specific temperature, frequency, and compliance requirements as detailed in the parameter comparison table.