TE Connectivity 5221185-2 BNC Connector Plug 75 Ohm Crimp Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 5221185-2 is a BNC connector plug with male pin configuration, designed for 75 ohm coaxial cable applications. This connector features crimp termination for both center contact and shield, free hanging (in-line) mounting, and bayonet lock fastening. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations where BNC 75 ohm crimp connectors are required.

Key Parameters

Parameter	Value
Connector Style	BNC
Connector Type	Plug, Male Pin
Impedance	75 Ohms
Contact Termination	Crimp
Shield Termination	Crimp
Mounting Type	Free Hanging (In-Line)
Fastening Type	Bayonet Lock
Frequency - Max	2 GHz
Voltage Rating	500 V
Operating Temperature	-55°C ~ 85°C
Mating Cycles	500
Number of Ports	1
Housing Color	Silver
Center Contact Material	Brass
Body Finish	Nickel
Center Contact Plating	Gold
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 5221185-2 is determined by strict adherence to the following critical parameters:

Core Electrical Parameters:

Connector Style: BNC
Connector Type: Plug, Male Pin
Impedance: 75 Ohms
Contact Termination: Crimp
Shield Termination: Crimp
Fastening Type: Bayonet Lock
Number of Ports: 1

Core Mechanical Parameters:

Mounting Type: Free Hanging (In-Line)
Housing Color: Silver
Center Contact Plating: Gold
Body Finish: Nickel

Performance Parameters:

Voltage Rating: 500 V
Mating Cycles: 500

Substitute parts are grouped into two categories:

Parametric Equivalent: TE Connectivity 5413589-2 matches all core electrical and mechanical parameters with identical specifications across impedance, termination methods, fastening, and material composition.

Similar Manufacturers: Amphenol RF (031-80108, 112955-11) and Switchcraft Inc. (HP75BNC12X, HP75BNC1X, HP75BNC7X, HP75BNC9X) provide BNC 75 ohm crimp plug connectors that satisfy the core electrical requirements and mechanical form factor. These alternatives differ in frequency capability, operating temperature range, dielectric material, and cable group compatibility, but maintain functional equivalence for 75 ohm BNC crimp applications.

Parameter Comparison

Parameter	5221185-2 (Main)	5413589-2 (TE Connectivity)	031-80108 (Amphenol RF)	112955-11 (Amphenol RF)	HP75BNC12X (Switchcraft)	HP75BNC1X (Switchcraft)	HP75BNC7X (Switchcraft)	HP75BNC9X (Switchcraft)
Manufacturer	TE Connectivity	TE Connectivity	Amphenol RF	Amphenol RF	Switchcraft Inc.	Switchcraft Inc.	Switchcraft Inc.	Switchcraft Inc.
Connector Style	BNC	BNC	BNC	BNC	BNC	BNC	BNC	BNC
Connector Type	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin
Impedance	75 Ohms	75 Ohms	75 Ohms	75 Ohms	75 Ohms	75 Ohms	75 Ohms	75 Ohms
Contact Termination	Crimp	Crimp	Crimp	Crimp	Crimp	Crimp	Crimp	Crimp
Shield Termination	Crimp	Crimp	Crimp	Crimp	Crimp	Crimp	Crimp	Crimp
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Fastening Type	Bayonet Lock	Bayonet Lock	Bayonet Lock	Bayonet Lock	Bayonet Lock	Bayonet Lock	Bayonet Lock	Bayonet Lock
Frequency - Max	2 GHz	2 GHz	4 GHz	6 GHz	Not Specified	Not Specified	Not Specified	Not Specified
Housing Color	Silver	Silver	Silver	Silver	Silver	Silver	Silver	Silver
Center Contact Material	Brass	Brass	Brass	Brass	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy
Body Material	Zinc Die Cast	Brass	Phosphor Bronze	Brass	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy
Body Finish	Nickel	Nickel	Nickel	Nickel	Nickel	Nickel	Nickel	Nickel
Center Contact Plating	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Operating Temperature	-55°C ~ 85°C	-55°C ~ 85°C	-65°C ~ 165°C	-65°C ~ 165°C	-65°C ~ 165°C	-65°C ~ 165°C	-65°C ~ 165°C	-65°C ~ 165°C
Voltage Rating	500 V	500 V	500 V	500 V	500 V	500 V	500 V	500 V
Mating Cycles	500	500	500	500	500	500	500	500
Product Status	Obsolete	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: TE Connectivity 5413589-2

The TE Connectivity 5413589-2 is the parametric equivalent to the 5221185-2. This part maintains identical electrical specifications (75 ohm impedance, 2 GHz maximum frequency, 500 V voltage rating) and mechanical configuration (BNC plug, crimp termination, free hanging mounting, bayonet lock fastening). Both parts are classified as obsolete; however, 5413589-2 maintains full RoHS compliance and is currently in stock with 936 pieces available. This part is the direct functional replacement for legacy system maintenance.

Secondary Recommendations: Amphenol RF and Switchcraft Active Alternatives

For new designs or applications requiring extended operating temperature ranges and higher frequency capability, the following active-status alternatives are suitable:

Amphenol RF 112955-11 provides the highest frequency capability (6 GHz) among available substitutes while maintaining 75 ohm impedance, crimp termination, and bayonet lock fastening. This part supports extended operating temperature (-65°C ~ 165°C) and is ROHS3 compliant with REACH compliance status. Cable group compatibility includes RG-122, 180, 180A, 180B, 195, Belden 1855, and 1865A. Inventory availability is 2591 pieces.

Amphenol RF 031-80108 offers 4 GHz frequency capability with extended operating temperature range and ROHS3 compliance. This part is compatible with Belden 8281 cable and provides an intermediate frequency option between the original 2 GHz specification and the 6 GHz capability of 112955-11.

Switchcraft Inc. HP75BNC Series (HP75BNC12X, HP75BNC1X, HP75BNC7X, HP75BNC9X) are active-status alternatives featuring extended operating temperature (-65°C ~ 165°C), ROHS3 compliance, and copper alloy construction. These connectors are differentiated by cable group compatibility: HP75BNC12X (Belden 1855A), HP75BNC1X (Belden 8241), HP75BNC7X (Belden 1694A), and HP75BNC9X (Belden 1505A). All Switchcraft variants maintain 500 V voltage rating and 500 mating cycles.

Compliance Considerations:

All substitute parts maintain RoHS compliance (either RoHS or ROHS3 standard). The original 5221185-2 and its parametric equivalent 5413589-2 are RoHS compliant. Active alternatives from Amphenol RF and Switchcraft are ROHS3 compliant, representing current regulatory standards. REACH compliance status varies: TE Connectivity parts show vendor undefined status, Amphenol RF parts are REACH affected, and Switchcraft parts are REACH unaffected.

Frequently Asked Questions (FAQ)

Q: Can I use TE Connectivity 5413589-2 as a direct replacement for 5221185-2?

A: Yes. The 5413589-2 is a parametric equivalent with identical electrical and mechanical specifications. Both are 75 ohm BNC crimp plugs with free hanging mounting and bayonet lock fastening. The only material difference is body construction (brass versus zinc die cast), which does not affect functional performance in equivalent applications.

Q: What is the difference between the main part and the Amphenol RF alternatives?

A: The primary differences are product status and frequency capability. The original 5221185-2 and 5413589-2 are obsolete with 2 GHz maximum frequency. Amphenol RF 031-80108 provides 4 GHz capability, and 112955-11 provides 6 GHz capability. All maintain 75 ohm impedance, crimp termination, and 500 V voltage rating. Amphenol RF parts feature extended operating temperature (-65°C ~ 165°C) compared to the original -55°C ~ 85°C range.

Q: Are Switchcraft HP75BNC connectors compatible with the same cables as the original part?

A: Switchcraft HP75BNC connectors are designed for specific cable groups. The original 5221185-2 is compatible with RG-59, 59A, and 59B cables. Switchcraft variants support different cable specifications: HP75BNC12X (Belden 1855A), HP75BNC1X (Belden 8241), HP75BNC7X (Belden 1694A), and HP75BNC9X (Belden 1505A). Cable group compatibility must be verified for your specific application.

Q: What does "free hanging (in-line)" mounting mean?

A: Free hanging (in-line) mounting indicates the connector is designed to be attached directly to the cable without a panel or chassis mount. The connector hangs freely from the cable termination, suitable for applications where the connector is not mounted to a fixed structure.

Q: Why do some substitute parts have higher frequency ratings than the original?

A: Higher frequency capability results from improved dielectric materials and construction methods. Amphenol RF parts use polytetrafluoroethylene (PTFE) dielectric instead of polyethylene (PE), enabling higher frequency performance. These parts are backward compatible with lower frequency applications, making them suitable for designs requiring future frequency expansion.

Q: What is the significance of RoHS and ROHS3 compliance?

A: RoHS (Restriction of Hazardous Substances) compliance restricts the use of specific hazardous materials in electrical and electronic equipment. ROHS3 is the current version of the directive. All listed parts meet RoHS requirements. ROHS3 compliance indicates the part meets current regulatory standards and is suitable for new designs and procurement.

Q: How many mating cycles are supported by these connectors?

A: All listed parts support 500 mating cycles, indicating the connector can be mated and unmated 500 times before performance degradation. This specification applies to both the original part and all substitutes.

Q: What is the insertion loss specification, and why does it vary?

A: Insertion loss measures signal attenuation through the connector. The original 5221185-2 specifies 0.15 dB insertion loss. Amphenol RF parts specify 0.2 dB. Switchcraft parts do not provide insertion loss specifications in the available data. For applications sensitive to signal loss, the lower insertion loss of the original specification should be considered.

Q: Can I use these connectors in high-temperature environments?

A: The original 5221185-2 operates from -55°C to 85°C. Amphenol RF and Switchcraft alternatives operate from -65°C to 165°C, providing significantly extended temperature capability. For applications exceeding 85°C, Amphenol RF or Switchcraft alternatives are required.

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