TE Connectivity 227161-3 BNC Connector Jack Equivalent & Substitute Parts

Part Overview

The TE Connectivity 227161-3 is a BNC connector jack, female socket rated for 50 ohms impedance, designed for panel mount through-hole right-angle solder applications. This coaxial RF connector operates at frequencies up to 4 GHz with a maximum voltage rating of 500 V and supports 500 mating cycles. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for PCB-based RF applications.

Key Parameters

Parameter	Value
Connector Style	BNC
Connector Type	Jack, Female Socket
Impedance	50 Ohms
Mounting Type	Panel Mount, Through Hole, Right Angle
Contact Termination	Solder
Frequency - Max	4 GHz
Voltage Rating	500 V
Operating Temperature	-55°C ~ 85°C
Mating Cycles	500
Fastening Type	Bayonet Lock
Number of Ports	1

Substitute Part Grouping Explanation

Substitution of the obsolete TE Connectivity 227161-3 is determined by strict equivalence across the following critical parameters: connector style (BNC), connector type (jack, female socket), impedance (50 ohms), mounting configuration (panel mount, through-hole, right-angle), contact termination (solder), fastening mechanism (bayonet lock), and electrical ratings (frequency, voltage, mating cycles). Parts are grouped into three categories based on substitution relationship:

Direct Manufacturer Equivalents (TE Connectivity): Parts 5227161-3, 227161-1, 227161-7, 5227161-1, and 5227161-7 maintain identical BNC jack configuration, 50-ohm impedance, panel mount right-angle solder termination, 4 GHz frequency rating, 500 V voltage rating, and 500 mating cycles. Variations exist in center contact plating (gold versus tin), RoHS compliance status, and packaging format. These parts are functionally interchangeable within the TE Connectivity product line.

Cross-Manufacturer Direct Substitutes: Part 31-5431 (Amphenol RF) and part 364A595 (Winchester Interconnect) provide BNC jack, female socket, 50-ohm, panel mount right-angle solder configurations with identical fastening and electrical ratings. Frequency rating for 31-5431 is limited to 1 GHz. Part 364A595 extends operating temperature to -40°C ~ 165°C and includes weatherproof ingress protection.

Substitution eligibility is restricted to parts matching all mandatory parameters: BNC style, jack female socket type, 50-ohm impedance, panel mount through-hole right-angle mounting, solder termination, bayonet lock fastening, and compatible electrical ratings.

Parameter Comparison

Part Number	Manufacturer	Product Status	Connector Type	Impedance	Frequency Max	Center Contact Plating	Body Material	Dielectric Material	Operating Temperature	RoHS Status	Inventory
227161-3	TE Connectivity	Obsolete	Jack, Female Socket	50 Ohms	4 GHz	Gold	Zinc	Polymethylpentene (PMP)	-55°C ~ 85°C	RoHS non-compliant	856 Pcs
5227161-3	TE Connectivity	Active	Jack, Female Socket	50 Ohms	4 GHz	Gold	Zinc	Polymethylpentene (PMP)	-55°C ~ 85°C	ROHS3 Compliant	1142 Pcs
227161-1	TE Connectivity	Active	Jack, Female Socket	50 Ohms	4 GHz	Tin	Zinc	Polymethylpentene (PMP)	-55°C ~ 85°C	ROHS3 Compliant	825 Pcs
227161-7	TE Connectivity	Active	Jack, Female Socket	50 Ohms	4 GHz	Gold	Zinc	Polymethylpentene (PMP)	-55°C ~ 85°C	RoHS non-compliant	804 Pcs
5227161-1	TE Connectivity	Active	Jack, Female Socket	50 Ohms	4 GHz	Tin	Zinc	Polymethylpentene (PMP)	-55°C ~ 85°C	ROHS3 Compliant	1944 Pcs
5227161-7	TE Connectivity	Active	Jack, Female Socket	50 Ohms	4 GHz	Gold	Zinc	Polymethylpentene (PMP)	-55°C ~ 85°C	RoHS Compliant	7850 Pcs
31-5431	Amphenol RF	Active	Jack, Female Socket	50 Ohms	1 GHz	Gold	Zinc Die Cast	Polypropylene (PP)	-55°C ~ 85°C	ROHS3 Compliant	3708 Pcs
364A595	Winchester Interconnect	Active	Jack, Female Socket	50 Ohms	4 GHz	Gold	Brass	Polypropylene (PP)	-40°C ~ 165°C	RoHS Compliant	1104 Pcs

Engineering Selection Recommendations

Primary Recommendation: Part 5227161-7 (TE Connectivity) is the preferred direct substitute for the obsolete 227161-3. This part maintains identical electrical specifications (50 ohms, 4 GHz frequency, 500 V voltage rating, 500 mating cycles), mechanical configuration (BNC jack, female socket, panel mount right-angle solder), and material composition (zinc body, PMP dielectric). Part 5227161-7 is active in production, RoHS compliant, and available in highest inventory (7850 pcs), ensuring supply continuity and regulatory compliance for new designs.

Secondary Recommendation: Part 5227161-3 (TE Connectivity) provides identical specifications to 5227161-7 with ROHS3 compliance and active product status. This part differs only in packaging format (bulk) and inventory level (1142 pcs). Selection between 5227161-7 and 5227161-3 depends on packaging requirements and supply chain preferences.

Alternative with Compliance Consideration: Part 227161-7 (TE Connectivity) matches all electrical and mechanical parameters of the original 227161-3 but retains RoHS non-compliant status. This part is suitable only for applications where RoHS compliance is not mandated. Inventory availability is 804 pcs.

Cross-Manufacturer Substitutes: Part 31-5431 (Amphenol RF) is suitable for applications with frequency requirements limited to 1 GHz. This part is ROHS3 compliant and active. Part 364A595 (Winchester Interconnect) maintains 4 GHz frequency capability and RoHS compliance but operates at extended temperature range (-40°C ~ 165°C) and includes weatherproof ingress protection, making it suitable for harsh environment applications.

Compliance-Driven Selection: For applications requiring RoHS compliance, select from parts 5227161-3, 5227161-7, 5227161-1, 227161-1, 31-5431, or 364A595. For applications requiring REACH compliance, select from TE Connectivity parts 5227161-3, 227161-1, 5227161-1, 5227161-7, or 227161-7.

Frequently Asked Questions (FAQ)

Q: Can part 227161-7 be used as a direct replacement for the obsolete 227161-3?

A: Part 227161-7 is electrically and mechanically equivalent to 227161-3, maintaining identical BNC jack configuration, 50-ohm impedance, 4 GHz frequency rating, and panel mount right-angle solder termination. However, 227161-7 retains RoHS non-compliant status. Use 227161-7 only in applications where RoHS compliance is not required. For RoHS-compliant designs, select 5227161-7 or 5227161-3.

Q: What is the difference between TE Connectivity parts with the "5" prefix (5227161-x) and those without (227161-x)?

A: Parts with the "5" prefix (5227161-x series) are active production parts with RoHS compliance status. Parts without the prefix (227161-x series) are legacy parts with mixed RoHS compliance. The "5" prefix indicates updated manufacturing standards and regulatory compliance. For new designs, prioritize 5227161-x series parts.

Q: Can part 31-5431 (Amphenol RF) replace the TE Connectivity 227161-3?

A: Part 31-5431 is mechanically and electrically compatible for BNC jack, female socket, 50-ohm, panel mount right-angle solder applications. However, 31-5431 is frequency-limited to 1 GHz, compared to 4 GHz for 227161-3. Use 31-5431 only in applications with maximum frequency requirements of 1 GHz or lower.

Q: What is the significance of center contact plating differences (gold versus tin)?

A: Center contact plating affects contact resistance and corrosion resistance. Gold plating (parts 227161-3, 5227161-3, 227161-7, 5227161-7, 31-5431, 364A595) provides superior corrosion resistance and lower contact resistance. Tin plating (parts 227161-1, 5227161-1) is acceptable for standard applications but offers reduced corrosion resistance. For critical RF applications, gold-plated contacts are preferred.

Q: Is part 364A595 (Winchester Interconnect) suitable for high-temperature applications?

A: Part 364A595 operates at -40°C ~ 165°C, extending the upper temperature limit to 165°C compared to 85°C for TE Connectivity parts. This part is suitable for high-temperature environments and includes weatherproof ingress protection. Electrical specifications (50 ohms, 4 GHz, 500 V) remain equivalent to 227161-3.

Q: What packaging formats are available for substitute parts?

A: TE Connectivity parts 5227161-3, 227161-1, 227161-7, 5227161-1, and 5227161-7 are available in bulk packaging. Part 227161-3 (original) includes connector, lockwasher, and nut. Part 227161-7 also includes these accessories. Amphenol RF part 31-5431 and Winchester Interconnect part 364A595 are supplied in bulk and tray packaging respectively. Verify packaging requirements before component selection.

Q: Are all substitute parts REACH-compliant?

A: TE Connectivity parts 5227161-3, 227161-1, 5227161-1, 5227161-7, and 227161-7 are REACH-affected. Amphenol RF part 31-5431 and Winchester Interconnect part 364A595 have undefined or unspecified REACH status in provided documentation. Confirm REACH compliance status with manufacturers for applications requiring REACH certification.

Q: What is the maximum inventory availability for substitute parts?

A: Part 5227161-7 (TE Connectivity) has the highest inventory at 7850 pcs. Part 5227161-1 (TE Connectivity) has 1944 pcs. Part 31-5431 (Amphenol RF) has 3708 pcs. Part 364A595 (Winchester Interconnect) has 1104 pcs. Inventory levels support component selection based on supply chain requirements and lead time considerations.

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