Amphenol RF 901-170 SMA to TNC Coaxial Adapter Equivalent & Substitute Parts

Part Overview

The Amphenol RF 901-170 is an active coaxial adapter connector that converts between SMA Plug (Male Pin) and TNC Jack (Female Socket) configurations. This adapter operates at 50 Ohms impedance and supports frequencies up to 11 GHz, making it suitable for RF and microwave applications requiring series conversion between SMA and TNC connector types. The part is ROHS3 compliant and maintains an operating temperature range of -65°C to 165°C. Equivalent substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when specific packaging or performance requirements necessitate alternative selection.

Substiute Parts

901-170

Amphenol RFIn Stock: 782901-170 Datasheet

Current PartRFQ

4294

Pomona ElectronicsIn Stock: 10364294 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 901-170 are qualified based on strict electrical and mechanical parameter alignment. The following criteria determine substitution eligibility:

Mandatory Matching Parameters:

• Adapter Series: SMA to TNC
• Adapter Type: Plug to Jack
• Center Gender: Female to Male
• Convert From: SMA Plug, Male Pin
• Convert To: TNC Jack, Female Socket
• Impedance: 50 Ohms
• Dielectric Material: Polytetrafluoroethylene (PTFE)
• Fastening Type: Threaded, Threaded
• Operating Temperature Range: -65°C to 165°C
• RoHS Status: ROHS3 Compliant

Allowable Variations:

• Frequency Maximum: Substitute parts may exceed the main part specification (11 GHz minimum requirement)
• Mounting Type: May differ based on application requirements
• Packaging: May vary (Bulk vs. standard packaging)
• Body Material and Finish: May differ while maintaining electrical performance
• Center Contact Material: May vary (Beryllium Copper or equivalent)
• Manufacturer: Different manufacturers acceptable if all electrical and mechanical parameters align

The Pomona Electronics 4294 meets all mandatory matching parameters and qualifies as a direct substitute for the Amphenol RF 901-170.

Parameter Comparison

Engineering Selection Recommendations

Both the Amphenol RF 901-170 and Pomona Electronics 4294 are active products with ROHS3 compliance and identical core electrical specifications. Selection between these parts is based on the following engineering considerations:

Amphenol RF 901-170 Selection Criteria:

• Primary sourcing option with established inventory (684 Pcs in stock)
• REACH Affected status requires compliance verification in regulated markets
• Suitable for applications requiring standard SMA to TNC conversion within 11 GHz frequency range

Pomona Electronics 4294 Selection Criteria:

• Extended frequency capability (12.4 GHz) provides margin for high-frequency applications
• Free Hanging (In-Line) mounting type accommodates applications requiring flexible positioning
• Bulk packaging option available for high-volume requirements
• REACH Unaffected status simplifies compliance documentation in certain markets
• Higher inventory availability (1020 Pcs in stock) supports rapid procurement

Both parts maintain identical operating temperature ranges (-65°C to 165°C), impedance (50 Ohms), and dielectric materials (PTFE), ensuring functional equivalence in standard RF applications. The Pomona Electronics 4294 offers enhanced frequency performance and alternative mounting configuration without compromising electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the Pomona Electronics 4294 directly replace the Amphenol RF 901-170 in existing designs?

A: Yes. Both parts share identical adapter series (SMA to TNC), center gender configuration (Female to Male), impedance (50 Ohms), operating temperature range (-65°C to 165°C), and dielectric material (PTFE). The Pomona Electronics 4294 exceeds the frequency specification (12.4 GHz vs. 11 GHz) and maintains ROHS3 compliance, making it a direct electrical and mechanical substitute.

Q: What is the significance of the frequency difference between the two parts?

A: The Amphenol RF 901-170 operates to 11 GHz, while the Pomona Electronics 4294 operates to 12.4 GHz. This difference reflects the maximum rated frequency for each adapter. Applications operating below 11 GHz are compatible with both parts. Applications requiring operation between 11 GHz and 12.4 GHz require the Pomona Electronics 4294.

Q: How does the mounting type difference affect substitution?

A: The Amphenol RF 901-170 mounting type is not specified, while the Pomona Electronics 4294 is specified as Free Hanging (In-Line) with Straight style. Free Hanging (In-Line) mounting indicates the adapter is designed for direct connection between cable-terminated connectors without additional mechanical support. This configuration is standard for coaxial adapter connectors and does not restrict substitution in typical RF applications.

Q: Are there compliance differences between these parts?

A: Both parts are ROHS3 compliant and share identical ECCN (EAR99) and HTSUS (8536.69.4010) classifications. The Amphenol RF 901-170 is REACH Affected, while the Pomona Electronics 4294 is REACH Unaffected. Applications subject to REACH regulations should verify compliance requirements with the appropriate regulatory authority.

Q: What packaging options are available?

A: The Amphenol RF 901-170 packaging is not specified in the standard configuration. The Pomona Electronics 4294 is available in Bulk packaging. Bulk packaging typically accommodates high-volume procurement and may require verification of minimum order quantities.

Q: Do both parts use identical center contact materials?

A: The Amphenol RF 901-170 specifies Beryllium Copper for the center contact material. The Pomona Electronics 4294 specifies Beryllium Copper and Brass. Both materials are acceptable for 50 Ohm RF applications and maintain electrical equivalence. The specific material composition may vary by manufacturing lot.

Q: What is the operating temperature range for both adapters?

A: Both the Amphenol RF 901-170 and Pomona Electronics 4294 operate across an identical temperature range of -65°C to 165°C, ensuring thermal compatibility in applications spanning industrial and military temperature specifications.