TE Connectivity 227755-3 BNC Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 227755-3 is a BNC Connector Jack, Female Socket rated for 50 Ohms impedance with panel mount solder cup termination. This component is classified as Obsolete, necessitating identification of active equivalent and substitute parts for ongoing design and procurement requirements. The connector features bayonet lock fastening, extended insulation, and operates across a temperature range of -65°C to 165°C with a maximum frequency rating of 4 GHz.

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
Number of Ports	1
Operating Temperature	-65°C ~ 165°C
Voltage Rating	500 V
Mating Cycles	500

Substitute Part Grouping Explanation

Substitution of the 227755-3 is determined by strict equivalence across the following critical 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), Frequency - Max (4 GHz), Number of Ports (1), Operating Temperature (-65°C ~ 165°C), and Voltage Rating (500 V).

Substitute parts are grouped into two categories:

Direct Manufacturer Equivalents (TE Connectivity AMP Connectors): Parts 5227755-3, 227755-1, 227755-2, 5227755-1, 5227169-5, 5227169-7, and 5227169-8 maintain all critical electrical and mechanical parameters. These parts differ in center contact plating material (Silver, Tin, or Gold), dielectric material composition (PBT or PTFE), shield termination method (Solder Tag or Solder), and regulatory compliance status (RoHS Compliant, ROHS3 Compliant, or RoHS non-compliant).

Parametric Equivalent (TE Connectivity AMP Connectors): Part 1-1337448-0 (Greenpar Series) maintains all critical parameters with variations in body material (Brass vs. Zinc), dielectric material (PTFE vs. PBT), and included accessories (4 pcs vs. 3 pcs).

Similar Manufacturer Alternative (Amphenol RF): Part 031-4890-1 provides cross-manufacturer substitution with equivalent electrical and mechanical specifications. This part features Beryllium Copper center contact material, Brass body material, and Silver finish, with documented insertion loss of 0.2dB.

Obsolete Reference (TE Connectivity AMP Connectors): Part 227169-7 is classified as Obsolete and is included for historical reference only.

Parameter Comparison

Part Number	Manufacturer	Product Status	Center Contact Plating	Body Material	Dielectric Material	Shield Termination	RoHS Status	Inventory (Pcs)
227755-3	TE Connectivity AMP	Obsolete	Silver	Zinc	PBT	Solder Tag	RoHS non-compliant	852
5227755-3	TE Connectivity AMP	Active	Gold	Zinc	PBT	Solder	ROHS3 Compliant	1068
1-1337448-0	TE Connectivity AMP	Active	Gold	Brass	PTFE	Solder Tag	RoHS Compliant	1042
227755-1	TE Connectivity AMP	Active	Tin	Zinc	PBT	Solder Tag	RoHS non-compliant	4813
227755-2	TE Connectivity AMP	Active	Gold	Zinc	PBT	Solder Tag	RoHS non-compliant	1085
5227169-5	TE Connectivity AMP	Active	Tin	Zinc	PBT	Solder Tag	RoHS Compliant	1830
5227169-7	TE Connectivity AMP	Active	Gold	Zinc	PBT	Solder Tag	ROHS3 Compliant	643
5227169-8	TE Connectivity AMP	Active	Gold	Zinc	PTFE	Solder Tag	RoHS Compliant	1695
5227755-1	TE Connectivity AMP	Active	Tin	Zinc	PBT	Solder Tag	ROHS3 Compliant	952
031-4890-1	Amphenol RF	Active	Silver	Brass	PTFE	Solder	ROHS3 Compliant	1015
227169-7	TE Connectivity AMP	Obsolete	Gold	Not specified	Not specified	Solder Tag	Not applicable	799

Engineering Selection Recommendations

For RoHS Compliance Requirements:

When RoHS compliance is mandated, select from active parts with RoHS Compliant or ROHS3 Compliant status. Part 5227755-3 provides direct manufacturer equivalence with ROHS3 Compliant certification and active product status. Alternative options include 1-1337448-0 (RoHS Compliant, Greenpar Series), 5227169-5 (RoHS Compliant), 5227169-8 (RoHS Compliant), 5227755-1 (ROHS3 Compliant), 5227169-7 (ROHS3 Compliant), and 031-4890-1 (ROHS3 Compliant, Amphenol RF).

For Direct TE Connectivity AMP Connectors Sourcing:

Part 5227755-3 is the primary active equivalent with identical manufacturer lineage. This part maintains all critical electrical and mechanical parameters while providing ROHS3 Compliant status and active product availability. Part 227755-1 offers the highest inventory availability (4813 pcs) among TE Connectivity options, though it carries RoHS non-compliant status.

For REACH Compliance:

Parts with REACH Affected status include 5227755-3, 1-1337448-0, 5227169-5, 5227169-7, 5227169-8, 5227755-1, and 031-4890-1. The original 227755-3 carries Vendor Undefined REACH status.

For Cross-Manufacturer Flexibility:

Part 031-4890-1 (Amphenol RF) provides equivalent electrical and mechanical performance with documented insertion loss of 0.2dB. This part features Beryllium Copper center contact material and Brass body construction, offering alternative material specifications while maintaining 50 Ohm impedance and 4 GHz frequency rating.

For Dielectric Material Selection:

Parts utilizing PTFE dielectric material include 1-1337448-0, 5227169-8, and 031-4890-1. Parts utilizing PBT dielectric material include 5227755-3, 227755-1, 227755-2, 5227169-5, 5227755-1, and 227169-7.

For Center Contact Plating Selection:

Gold-plated center contact options include 5227755-3, 1-1337448-0, 227755-2, 5227169-7, 5227169-8, and 227169-7. Tin-plated options include 227755-1, 5227169-5, and 5227755-1. Silver-plated options include the original 227755-3 and 031-4890-1.

Frequently Asked Questions (FAQ)

Q: Can 227755-3 be directly replaced with 5227755-3?

A: Yes. Part 5227755-3 maintains all critical electrical and mechanical parameters: BNC connector style, Jack Female Socket type, 50 Ohm impedance, solder cup termination, panel mount configuration, bayonet lock fastening, 4 GHz maximum frequency, 500 V voltage rating, and -65°C to 165°C operating temperature range. The primary differences are center contact plating (Gold vs. Silver), shield termination method (Solder vs. Solder Tag), and regulatory compliance (ROHS3 Compliant vs. RoHS non-compliant).

Q: What is the difference between Solder Tag and Solder shield termination?

A: Both termination methods provide electrical connection for the shield. Solder Tag refers to a separate tag component included with the connector for shield attachment. Solder indicates direct solder connection capability. Both methods are functionally equivalent for 50 Ohm RF applications.

Q: Is 031-4890-1 (Amphenol RF) fully compatible with 227755-3?

A: Part 031-4890-1 maintains all critical electrical and mechanical parameters required for substitution. Differences include manufacturer (Amphenol RF vs. TE Connectivity), center contact material (Beryllium Copper vs. Phosphor Bronze), body material (Brass vs. Zinc), body finish (Silver vs. Nickel), and documented insertion loss (0.2dB). These differences do not affect functional compatibility in 50 Ohm RF applications.

Q: Why does 227755-3 show Obsolete status?

A: The 227755-3 is classified as Obsolete, indicating discontinued production. Active equivalent parts are available from TE Connectivity (5227755-3, 227755-1, 227755-2, 5227755-1, 5227169-5, 5227169-7, 5227169-8, 1-1337448-0) and from Amphenol RF (031-4890-1).

Q: What is the significance of center contact plating material?

A: Center contact plating affects electrical conductivity and corrosion resistance. Silver and Gold provide superior conductivity and corrosion resistance. Tin provides adequate performance for standard applications. Selection depends on environmental conditions and application requirements.

Q: Does dielectric material affect RF performance?

A: Both PBT (Polybutylene Terephthalate) and PTFE (Polytetrafluoroethylene) dielectric materials support 50 Ohm impedance and 4 GHz frequency operation. PTFE offers superior high-frequency performance and lower dielectric loss. PBT provides cost-effective performance for standard RF applications.

Q: Are all substitute parts rated for the same operating temperature range?

A: Yes. All substitute parts listed maintain the -65°C to 165°C operating temperature range and 500 V voltage rating of the original 227755-3.

Q: What packaging options are available?

A: The original 227755-3 shows no specified packaging designation. Active equivalents are available in Bulk packaging (5227755-3, 1-1337448-0, 227755-1, 5227169-5, 5227169-7, 5227169-8, 5227755-1, 031-4890-1) and unspecified packaging (227755-2, 227169-7).

Q: How many mating cycles are supported?

A: All parts listed, including the original 227755-3 and all substitutes, support 500 mating cycles.

Q: Which substitute part has the highest inventory availability?

A: Part 227755-1 has the highest inventory availability at 4813 pieces. However, this part carries RoHS non-compliant status. For RoHS-compliant options, 5227169-5 offers 1830 pieces in inventory.

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