TE Connectivity AMP Connectors 55319-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 55319-1 is a 0.110" (2.79mm) Quick Connect Female 22 AWG Crimp Connector with Non-Mating End Insulation, designed for free-hanging in-line applications. This component is classified as Obsolete, necessitating identification of active equivalent and substitute parts for ongoing procurement and design requirements. The 55319-1 belongs to the Faston and PIDG series of quick-connect terminals and features brass construction with tin plating for reliable electrical performance.

Key Parameters

Parameter	Value
Manufacturer Part Number	55319-1
Manufacturer	TE Connectivity AMP Connectors
Category	Terminals
Series	Faston, PIDG
Product Status	Obsolete
Gender	Female
Tab Width	0.110" (2.79mm)
Wire Gauge	22 AWG
Termination Type	Crimp
Insulation	Non-Mating End Insulated
Contact Material	Brass
Contact Finish	Tin
Mounting Type	Free Hanging (In-Line)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the obsolete 55319-1 is determined by strict alignment of the following critical parameters:

Primary Compatibility Criteria:

Tab Width: 0.110" (2.79mm) — mechanical fit requirement
Gender: Female — connector polarity requirement
Termination: Crimp — assembly method requirement
Insulation: Non-Mating End Insulated — electrical safety requirement
Contact Material: Brass with Tin finish — electrical and corrosion resistance requirement
Mounting Type: Free Hanging (In-Line) — application form factor requirement
Series: Faston, PIDG — connector family compatibility

Secondary Compatibility Criteria:

Wire Gauge Range: Must accommodate or exceed 22 AWG specification
Tab Thickness and Length: Dimensional tolerance for mating interface
Overall Length: Physical envelope constraints
Insulation Diameter: Wire size accommodation range

The substitute parts 165619-2 and 640923-2 maintain the primary compatibility criteria while offering extended wire gauge ranges and active product status. Both substitutes are manufactured by TE Connectivity AMP Connectors within the same Faston/PIDG series.

Parameter Comparison

Parameter	55319-1 (Main Part)	165619-2 (Substitute)	640923-2 (Substitute)
Manufacturer Part Number	55319-1	165619-2	640923-2
Product Status	Obsolete	Active	Active
Gender	Female	Female	Female
Tab Width	0.110" (2.79mm)	0.110" (2.79mm)	0.110" (2.79mm)
Tab Thickness	0.016" (0.41mm)	0.032" (0.81mm)	0.020" (0.51mm)
Tab Length	0.250" (6.35mm)	0.248" (6.30mm)	0.250" (6.35mm)
Length - Overall	0.780" (19.81mm)	0.685" (17.40mm)	0.800" (20.32mm)
Wire Gauge	22 AWG	22-26 AWG	18-22 AWG
Termination	Crimp	Crimp	Crimp
Insulation	Non-Mating End Insulated	Non-Mating End Insulated	Non-Mating End Insulated
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Contact Material	Brass	Brass	Brass
Contact Finish	Tin	Tin	Tin
Series	Faston, PIDG	Faston, PIDG	Faston, PIDG
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	Not applicable	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

165619-2 Selection Criteria: The 165619-2 is an active product with ROHS3 compliance, offering extended wire gauge accommodation (22-26 AWG) while maintaining the 0.110" tab width and crimp termination. This substitute is suitable for applications where the 22 AWG specification is the minimum requirement and compatibility with finer gauge wires (24-26 AWG) is acceptable. The increased tab thickness (0.032" versus 0.016") provides enhanced mechanical robustness. The shorter overall length (0.685" versus 0.780") may require verification against physical envelope constraints in existing designs.

640923-2 Selection Criteria: The 640923-2 is an active product with ROHS3 compliance, offering extended wire gauge accommodation (18-22 AWG) while maintaining the 0.110" tab width and crimp termination. This substitute is suitable for applications where compatibility with heavier gauge wires (18-20 AWG) is required alongside the 22 AWG specification. The tab thickness (0.020") and overall length (0.800") closely match the original 55319-1 specifications. The increased insulation diameter (0.135") accommodates larger wire insulation.

Compliance Advantage: Both substitute parts carry ROHS3 compliance certification, whereas the obsolete 55319-1 has "Not applicable" status. This compliance upgrade supports modern procurement and environmental regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can 165619-2 directly replace 55319-1 in existing designs? A: The 165619-2 maintains mechanical compatibility through identical tab width (0.110") and series designation (Faston/PIDG). The extended wire gauge range (22-26 AWG) encompasses the original 22 AWG specification. However, the reduced overall length (0.685" versus 0.780") requires verification against physical envelope constraints in the application.

Q: Can 640923-2 directly replace 55319-1 in existing designs? A: The 640923-2 maintains mechanical compatibility through identical tab width (0.110"), tab length (0.250"), and series designation (Faston/PIDG). The extended wire gauge range (18-22 AWG) encompasses the original 22 AWG specification. The overall length (0.800") and tab thickness (0.020") are closely aligned with the original specifications.

Q: What is the significance of tab thickness differences between these parts? A: Tab thickness affects the contact pressure and mechanical retention within the mating connector. The 55319-1 features 0.016" thickness, 165619-2 features 0.032" thickness, and 640923-2 features 0.020" thickness. Thicker tabs provide increased mechanical robustness but may require verification of mating connector tolerance specifications.

Q: Are both substitute parts available in the same packaging as the original? A: The 55319-1 was supplied in unspecified packaging. The 165619-2 is available in Bulk packaging with 19,771 pieces in stock. The 640923-2 is available in Cut Tape (CT) packaging with 993 pieces in stock. Packaging selection depends on procurement volume and assembly process requirements.

Q: Do the substitute parts maintain the same electrical performance characteristics? A: Both substitute parts maintain identical contact material (Brass), contact finish (Tin), and Moisture Sensitivity Level (MSL 1 - Unlimited) as the original 55319-1. These parameters ensure equivalent electrical performance and environmental reliability.

Q: What is the wire gauge compatibility consideration? A: The original 55319-1 is specified for 22 AWG only. The 165619-2 accommodates 22-26 AWG (finer gauges), and the 640923-2 accommodates 18-22 AWG (heavier gauges). Selection depends on whether the application requires single-gauge or multi-gauge wire accommodation.

Q: Are there any insulation diameter constraints to consider? A: The 55319-1 specifies insulation diameter of 0.040" ~ 0.080" (1.02mm ~ 2.03mm). The 165619-2 specifies 0.043" ~ 0.083" (1.10mm ~ 2.11mm), and the 640923-2 specifies 0.135" (3.43mm). These ranges must align with the actual wire insulation dimensions used in the application.

Q: What is the RoHS compliance advantage of the substitute parts? A: The obsolete 55319-1 carries "Not applicable" RoHS status. Both substitute parts (165619-2 and 640923-2) are ROHS3 compliant, meeting current environmental and procurement regulations for restricted substances in electrical and electronic equipment.

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