TE Connectivity AMP Connectors 331175 BNC Plug Right Angle 50 Ohm Coaxial Connector

Part Overview

The TE Connectivity AMP Connectors 331175 is a BNC connector plug with male pin configuration, designed for 50 ohm coaxial cable applications. This connector features right angle, free hanging (in-line) mounting with push-on contact termination and crimp shield termination. The 331175 is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity and ensure long-term component availability for new designs and field replacements.

Substiute Parts

331175

TE Connectivity AMP ConnectorsIn Stock: 849331175 Datasheet

Current PartRFQ

031-335

Amphenol RFIn Stock: 836031-335 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 331175 is based on electrical and mechanical compatibility within the BNC connector category. The primary substitute, Amphenol RF 031-335, maintains functional equivalence through the following critical parameters:

Electrical Compatibility: Impedance matching at 50 ohms ensures signal integrity across RF applications. Both connectors support the same voltage rating of 500 V and mating cycle specification of 500 cycles.

Mechanical Compatibility: Both connectors employ BNC plug configuration with male pin termination, bayonet lock fastening, and right angle free hanging (in-line) mounting. This ensures physical and functional interchangeability in existing installations.

Cable Compatibility: The substitute part supports the primary cable group (RG-58, 58A, 58B, 58C) specified for the original part, with extended compatibility to additional cable types (RG-141, RG-303, LMR-195, Belden B7806A, 9907).

Contact Termination Difference: The original 331175 uses push-on contact termination, while the substitute 031-335 uses crimp contact termination. Both termination methods are standard in BNC connector design and provide equivalent electrical performance when properly installed.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: Amphenol RF 031-335

The Amphenol RF 031-335 is the direct functional equivalent for the obsolete TE Connectivity 331175. Selection of this substitute is based on the following engineering criteria:

Product Status and Availability: The 031-335 maintains active product status with confirmed inventory availability (779 pcs new original in stock), ensuring reliable supply for both new production and field service applications. The original 331175 is obsolete, making the 031-335 the appropriate long-term solution.

Regulatory Compliance: The 031-335 is ROHS3 compliant and REACH affected, meeting current environmental and regulatory requirements. The original 331175 is RoHS non-compliant with undefined REACH status, presenting compliance risks for new designs and applications subject to regulatory oversight.

Electrical and Mechanical Equivalence: Both connectors maintain identical impedance (50 ohms), voltage rating (500 V), mating cycles (500), fastening type (bayonet lock), and mounting configuration (right angle, free hanging). The substitute supports all primary cable groups specified for the original part.

Performance Enhancement: The 031-335 provides superior frequency performance (4 GHz maximum versus 2.5 GHz) and extended operating temperature range (-65°C to 165°C versus -55°C to 85°C), offering enhanced capability for demanding RF applications without compromising compatibility.

Contact Termination Consideration: The transition from push-on to crimp contact termination in the substitute part requires appropriate tooling and assembly procedures. Crimp termination is standard industry practice for BNC connectors and provides equivalent electrical performance when executed to specification.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol RF 031-335 directly replace the TE Connectivity 331175 in existing installations?

A: Yes. Both connectors share identical BNC plug configuration, 50 ohm impedance, bayonet lock fastening, and right angle free hanging mounting. Physical and electrical interchangeability is confirmed for all applications within the specified operating parameters.

Q: What is the difference between push-on and crimp contact termination?

A: Push-on termination (331175) uses a sliding contact mechanism for cable connection. Crimp termination (031-335) requires mechanical deformation of a ferrule around the cable conductor. Both methods provide equivalent electrical performance in BNC connector applications when properly executed. Crimp termination is the current industry standard and offers superior long-term reliability in high-vibration environments.

Q: Does the 031-335 support the same cable types as the 331175?

A: The 031-335 supports all cable groups specified for the 331175 (RG-58, 58A, 58B, 58C) with extended compatibility to RG-141, RG-303, LMR-195, Belden B7806A, and 9907. This expanded cable compatibility provides greater flexibility in system design and field applications.

Q: What are the regulatory compliance differences between these connectors?

A: The 331175 is RoHS non-compliant with undefined REACH status. The 031-335 is ROHS3 compliant and REACH affected. For applications subject to environmental regulations or customer compliance requirements, the 031-335 is the appropriate selection.

Q: Are there frequency limitations when substituting the 031-335 for the 331175?

A: No. The 031-335 operates at 4 GHz maximum frequency, exceeding the 331175 specification of 2.5 GHz. This provides enhanced performance margin for RF applications without introducing compatibility constraints.

Q: What is the operating temperature range difference?

A: The 331175 operates from -55°C to 85°C. The 031-335 operates from -65°C to 165°C. The substitute part accommodates extended temperature extremes, suitable for aerospace, military, and industrial applications requiring broader thermal performance.

Q: Is assembly tooling different for the crimp termination used in the 031-335?

A: Yes. Crimp termination requires appropriate crimping tools and dies specific to BNC connector specifications. Standard push-on assembly tools are not compatible with crimp termination. Ensure assembly procedures and tooling are updated when transitioning from the 331175 to the 031-335.

Q: Can both connectors be used interchangeably in the same system?

A: Yes, within the same installation or system. Both connectors maintain identical electrical and mechanical specifications for the critical parameters governing BNC plug performance. Mixed use does not introduce compatibility issues.