TE Connectivity 227755-2 BNC Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 227755-2 is a BNC connector jack (female socket) rated for 50 ohms impedance, designed for panel mount applications with solder cup termination. This connector operates across a frequency range up to 4 GHz and supports a voltage rating of 500 V. The part is currently active in production with 1085 pieces in stock.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative compliance certifications are required, or when packaging and material specifications need adjustment for specific application requirements.

Key Parameters

Parameter	Specification
Connector Style	BNC
Connector Type	Jack, Female Socket
Impedance	50 Ohms
Contact Termination	Solder Cup
Mounting Type	Panel Mount
Mounting Feature	Bulkhead - Rear Side Nut
Fastening Type	Bayonet Lock
Frequency - Max	4 GHz
Voltage Rating	500 V
Operating Temperature	-65°C ~ 165°C
Mating Cycles	500

Substitute Part Grouping Explanation

Substitution of BNC connector jacks is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

Connector style (BNC)
Connector type (Jack, Female Socket)
Impedance (50 Ohms)
Contact termination (Solder Cup)
Mounting type (Panel Mount)
Mounting feature (Bulkhead - Rear Side Nut)
Fastening type (Bayonet Lock)
Maximum frequency (4 GHz)
Voltage rating (500 V)
Mating cycles (500)

Variable Parameters Allowing Substitution:

Center contact material (Phosphor Bronze, Beryllium Copper)
Center contact plating (Gold, Tin, Silver)
Body material (Zinc, Brass, Zinc Die Cast)
Dielectric material (PBT, PTFE, POM Acetal, Fluoropolymer)
Shield termination method (Solder Tag, Solder)
Operating temperature range (within or exceeding -65°C ~ 165°C)
Manufacturer (TE Connectivity AMP Connectors, Amphenol RF, Radiall USA)
RoHS compliance status
Packaging configuration

Parts are grouped as direct equivalents when all mandatory parameters match. Parametric equivalents share all mandatory parameters but differ in material composition or compliance certifications. Similar parts meet functional requirements but originate from alternative manufacturers.

Parameter Comparison

Part Number	Manufacturer	Connector Type	Impedance	Contact Termination	Center Contact Material	Center Contact Plating	Body Material	Dielectric Material	Operating Temperature	Voltage Rating	Mating Cycles	Product Status	RoHS Status
227755-2	TE Connectivity AMP	Jack, Female Socket	50 Ohms	Solder Cup	Phosphor Bronze	Gold	Zinc	PBT	-65°C ~ 165°C	500 V	500	Active	RoHS non-compliant
5227755-2	TE Connectivity AMP	Jack, Female Socket	50 Ohms	Solder Cup	Phosphor Bronze	Gold	Zinc	PBT	-65°C ~ 165°C	500 V	500	Active	ROHS3 Compliant
1-1337448-0	TE Connectivity AMP	Jack, Female Socket	50 Ohms	Solder Cup	Phosphor Bronze	Gold	Brass	PTFE	-65°C ~ 165°C	500 V	500	Active	RoHS Compliant
227755-1	TE Connectivity AMP	Jack, Female Socket	50 Ohms	Solder Cup	Phosphor Bronze	Tin	Zinc	PBT	-65°C ~ 165°C	500 V	500	Active	RoHS non-compliant
5227169-5	TE Connectivity AMP	Jack, Female Socket	50 Ohms	Solder Cup	Phosphor Bronze	Tin	Zinc	PBT	-65°C ~ 165°C	500 V	500	Active	RoHS Compliant
5227169-8	TE Connectivity AMP	Jack, Female Socket	50 Ohms	Solder Cup	Phosphor Bronze	Gold	Zinc	PTFE	-65°C ~ 165°C	500 V	500	Active	RoHS Compliant
031-4890-1	Amphenol RF	Jack, Female Socket	50 Ohms	Solder Cup	Beryllium Copper	Silver	Brass	PTFE	-65°C ~ 165°C	500 V	500	Active	ROHS3 Compliant
227169-7	TE Connectivity AMP	Jack, Female Socket	50 Ohms	Solder Cup	Phosphor Bronze	Gold	Not specified	Not specified	-65°C ~ 165°C	500 V	500	Obsolete	Not applicable
31-221-RFX	Amphenol RF	Jack, Female Socket	50 Ohms	Solder Cup	Phosphor Bronze	Gold	Zinc Die Cast	POM Acetal	Not specified	500 V	500	Active	ROHS3 Compliant
5227716-3	TE Connectivity AMP	Jack, Female Socket	50 Ohms	Solder Cup	Phosphor Bronze	Gold	Zinc	Fluoropolymer	-55°C ~ 85°C	500 V	500	Obsolete	RoHS Compliant
R141572000W	Radiall USA, Inc.	Jack, Female Socket	50 Ohms	Solder Cup	Beryllium Copper	Gold	Brass	PTFE	-65°C ~ 165°C	500 V	100	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent - Preferred for Replacement:

The part 5227755-2 is the direct equivalent of 227755-2 with identical electrical and mechanical specifications. The primary distinction is ROHS3 compliance certification. Selection of 5227755-2 is appropriate when RoHS compliance is required for the application or when regulatory requirements mandate compliant components.

Parametric Equivalents - Active Production:

Parts 1-1337448-0, 227755-1, 5227169-5, and 5227169-8 are parametric equivalents sharing all mandatory functional parameters. These parts differ in material composition and compliance status:

1-1337448-0: Brass body with PTFE dielectric and RoHS compliance. Suitable for applications requiring enhanced dielectric performance and regulatory compliance.
227755-1: Tin-plated center contact with RoHS non-compliance status. Functionally equivalent to 227755-2 with alternative contact plating.
5227169-5: Tin-plated center contact with RoHS compliance and REACH affected status.
5227169-8: PTFE dielectric with gold plating and RoHS compliance. Provides improved dielectric characteristics over PBT material.

Similar Alternatives - Cross-Manufacturer Options:

Parts 031-4890-1, 31-221-RFX, and R141572000W originate from alternative manufacturers (Amphenol RF and Radiall USA) and meet all mandatory functional parameters:

031-4890-1 (Amphenol RF): Beryllium copper center contact with PTFE dielectric and ROHS3 compliance. Insertion loss specified at 0.2dB.
31-221-RFX (Amphenol RF): Zinc die cast body with POM acetal dielectric and ROHS3 compliance. Insertion loss specified at 0.2dB.
R141572000W (Radiall USA): Beryllium copper center contact with PTFE dielectric and ROHS3 compliance. Mating cycles rated at 100 cycles.

Obsolete Parts - Not Recommended:

Parts 227169-7 and 5227716-3 carry obsolete product status. Part 5227716-3 additionally specifies a reduced operating temperature range (-55°C ~ 85°C) compared to the primary part. These parts should not be selected for new designs or long-term supply requirements.

Frequently Asked Questions (FAQ)

Q: Can 5227755-2 be used as a direct replacement for 227755-2?

A: Yes. Part 5227755-2 is electrically and mechanically identical to 227755-2. The primary difference is ROHS3 compliance certification. Selection depends on regulatory requirements for your application.

Q: What is the difference between gold-plated and tin-plated center contacts?

A: Both plating options are provided in the substitute parts list. Gold plating (227755-2, 5227755-2, 5227169-8) and tin plating (227755-1, 5227169-5) are alternative finishes. Selection is based on application-specific requirements for contact resistance and environmental exposure.

Q: Are Amphenol RF and Radiall USA connectors compatible with TE Connectivity sockets?

A: Yes. Parts 031-4890-1, 31-221-RFX, and R141572000W are BNC jack connectors with identical connector style, impedance, and bayonet fastening specifications. They are mechanically and electrically compatible with standard BNC plugs.

Q: What does ROHS3 compliance mean?

A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates the component meets European Union restrictions on hazardous substances. Parts 5227755-2, 1-1337448-0, 5227169-5, 5227169-8, 031-4890-1, 31-221-RFX, and R141572000W carry this certification.

Q: Why is the operating temperature range different for 5227716-3?

A: Part 5227716-3 specifies an operating temperature range of -55°C ~ 85°C, which is narrower than the primary part's -65°C ~ 165°C range. This part is obsolete and should not be selected for new applications.

Q: What is the significance of mating cycles specification?

A: Mating cycles indicate the number of connect/disconnect operations the connector is rated to withstand. The primary part and most substitutes are rated for 500 cycles. Part R141572000W is rated for 100 cycles, indicating reduced durability for high-cycle applications.

Q: Does dielectric material affect connector performance?

A: Yes. Dielectric material influences electrical properties and temperature stability. PBT (polybutylene terephthalate) is standard in the primary part. PTFE (polytetrafluoroethylene) offers superior dielectric performance. POM acetal and fluoropolymer are alternative materials with different electrical and thermal characteristics.

Q: Can I use parts with different body materials interchangeably?

A: Yes, provided all mandatory electrical and mechanical parameters match. Body material (zinc, brass, zinc die cast) affects mechanical strength and environmental resistance but does not alter electrical compatibility when impedance and contact specifications are identical.

Q: What packaging options are available?

A: The primary part 227755-2 is supplied without specified packaging. Substitute parts are available in bulk packaging and box packaging. Packaging selection depends on order quantity and handling requirements.

Q: Is REACH compliance important for my application?

A: REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) compliance indicates compliance with European chemical regulations. Parts marked as REACH Affected (5227755-2, 1-1337448-0, 5227169-5, 5227169-8, 031-4890-1, R141572000W) meet these requirements. Selection depends on regulatory requirements for your end market.

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