Amphenol RF 901-295 Coaxial Connector Adapter: Equivalent & Substitute Parts

Part Overview

The Amphenol RF 901-295 is an SMA Jack to N Jack coaxial connector adapter designed for RF applications requiring 50-ohm impedance matching between SMA and N series connectors. This adapter features female-to-female center gender configuration and operates across a frequency range up to 12.4 GHz with an operating temperature range of -65°C to 165°C.

The 901-295 maintains active product status with 773 units in current inventory. Substitute parts are identified for applications requiring alternative connector configurations, different manufacturers, or specific compliance certifications while maintaining core RF performance parameters.

Substiute Parts

901-295

Amphenol RFIn Stock: 836901-295 Datasheet

Current PartRFQ

1057377-1

TE Connectivity AMP ConnectorsIn Stock: 8851057377-1 Datasheet

SimilarRFQ

4299

Pomona ElectronicsIn Stock: 36914299 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 901-295 are identified based on the following critical parameters that determine functional equivalency:

Primary Substitution Criteria:

• Adapter series conversion (SMA to N)
• Impedance rating (50 Ohms)
• Frequency capability (up to 12.4 GHz minimum)
• Operating temperature range (-65°C to 165°C minimum)
• Dielectric material (PTFE)
• Center contact plating (Gold)
• Mounting configuration (Free Hanging, In-Line, Straight)

Substitute Classification:

Direct Equivalent (Identical Electrical and Mechanical Parameters): The Pomona Electronics 4299 provides direct equivalency to the 901-295, matching all critical RF performance parameters, impedance specification, frequency rating, temperature range, and material composition. Both parts feature jack-to-jack adapter configuration with female-to-female center gender.

Functional Alternative (Different Connector Gender Configuration): The TE Connectivity AMP Connectors 1057377-1 provides SMA-to-N series conversion but with plug-to-jack adapter type and male-to-female center gender configuration. This part operates within the same frequency and impedance class but requires different mating connector types than the 901-295.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: Amphenol RF 901-295

The 901-295 is the recommended primary component for new designs and applications. It maintains active product status with ROHS3 compliance, providing the highest level of regulatory assurance for current and future manufacturing requirements. The part is in active production with adequate inventory availability.

Direct Substitute: Pomona Electronics 4299

The Pomona Electronics 4299 serves as a direct functional equivalent to the 901-295. Both parts share identical electrical specifications (50-ohm impedance, 12.4 GHz frequency rating), mechanical configuration (jack-to-jack, female-to-female center gender), and material composition (PTFE dielectric, gold-plated contacts). The 4299 maintains active product status with RoHS compliance and offers higher inventory availability (3612 units). Selection between the 901-295 and 4299 depends on manufacturer preference, supply chain considerations, and packaging requirements (bulk packaging for 4299).

Alternative Consideration: TE Connectivity AMP Connectors 1057377-1

The TE Connectivity 1057377-1 is classified as obsolete and does not provide direct equivalency to the 901-295. The connector gender configuration differs (plug-to-jack with male-to-female center gender versus jack-to-jack with female-to-female), requiring different mating connector types. Critical electrical parameters including impedance and operating temperature are not specified for this part. The obsolete status and missing parameter documentation make this part unsuitable for new applications or as a primary substitute.

Frequently Asked Questions (FAQ)

Q: Can the Pomona Electronics 4299 be used as a direct replacement for the Amphenol RF 901-295?

A: Yes. The Pomona Electronics 4299 provides direct functional equivalency. Both parts feature identical adapter type (jack-to-jack), center gender configuration (female-to-female), impedance rating (50 ohms), frequency capability (12.4 GHz), operating temperature range (-65°C to 165°C), and dielectric material (PTFE). The parts are mechanically and electrically interchangeable for applications requiring SMA-to-N series conversion.

Q: What is the key difference between the 901-295 and the TE Connectivity 1057377-1?

A: The primary difference is connector gender configuration. The 901-295 features jack-to-jack adapter type with female-to-female center gender, while the 1057377-1 features plug-to-jack adapter type with male-to-female center gender. These different configurations require different mating connector types and are not interchangeable. Additionally, the 1057377-1 is obsolete and lacks specified impedance and operating temperature documentation.

Q: Are there packaging differences between the 901-295 and the Pomona Electronics 4299?

A: The Pomona Electronics 4299 is supplied in bulk packaging, while the Amphenol RF 901-295 packaging specification is not detailed in the provided documentation. Bulk packaging may affect handling, storage, and component management procedures depending on application requirements and assembly processes.

Q: Do all substitute parts meet the same compliance standards as the 901-295?

A: The Pomona Electronics 4299 meets RoHS compliance and REACH requirements equivalent to the 901-295. The TE Connectivity 1057377-1 is RoHS compliant and REACH affected but is classified as obsolete. For applications requiring ROHS3 compliance specifically, the Amphenol RF 901-295 is the only part meeting this higher standard.

Q: What frequency range should be considered when selecting a substitute?

A: The 901-295 and Pomona Electronics 4299 both support operation up to 12.4 GHz. The TE Connectivity 1057377-1 does not specify a maximum frequency rating. For applications operating at or near 12.4 GHz, the frequency specification must be confirmed before part selection.

Q: Are there temperature range considerations for substitute selection?

A: The 901-295 and Pomona Electronics 4299 both operate across -65°C to 165°C. The TE Connectivity 1057377-1 does not specify an operating temperature range. Applications requiring operation across the full -65°C to 165°C range should use either the 901-295 or 4299.