TE Connectivity 521471-1 Quick Connect Female Crimp Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 521471-1 is a 0.187" (4.75mm) Quick Connect Female 14-18 AWG Crimp Connector with full insulation, designed for free-hanging in-line and right-angle mounting applications. This connector is part of the Ultrapod series and features a fully insulated angled 90° flag terminal configuration.

The 521471-1 carries an Obsolete product status. Identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades where this connector type is specified.

Key Parameters

Parameter	Value
Tab Width	0.187" (4.75mm)
Tab Thickness	0.020" (0.51mm)
Wire Gauge	14-18 AWG
Gender	Female
Terminal Type	Angled - 90°, Flag
Insulation Type	Fully Insulated
Mounting Type	Free Hanging (In-Line), Right Angle
Termination Method	Crimp
Insulation Diameter	0.110" ~ 0.150" (2.79mm ~ 3.81mm)
Contact Material	Brass
Series	Ultrapod
RoHS Status	RoHS Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 521471-1 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications for:

Tab width: 0.187" (4.75mm)
Tab thickness: 0.020" (0.51mm)
Wire gauge range: 14-18 AWG
Gender: Female
Terminal type: Angled 90° flag configuration
Insulation: Fully insulated
Mounting type: Free hanging in-line and right-angle
Termination: Crimp connection
Insulation diameter range: 0.110" ~ 0.150" (2.79mm ~ 3.81mm)
Contact material: Brass
Series: Ultrapod
RoHS compliance: Required
MSL rating: 1 (Unlimited)

The 521471-2 meets all these criteria and is classified as the manufacturer-recommended substitute.

Parameter Comparison

Parameter	521471-1 (Main Part)	521471-2 (Substitute)
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Category	Terminals	Terminals
Series	Ultrapod	Ultrapod
Product Status	Obsolete	Active
Tab Width	0.187" (4.75mm)	0.187" (4.75mm)
Tab Thickness	0.020" (0.51mm)	0.020" (0.51mm)
Wire Gauge	14-18 AWG	14-18 AWG
Gender	Female	Female
Terminal Type	Angled - 90°, Flag	Angled - 90°, Flag
Insulation Type	Fully Insulated	Fully Insulated
Mounting Type	Free Hanging (In-Line), Right Angle	Free Hanging (In-Line), Right Angle
Termination Method	Crimp	Crimp
Insulation Diameter	0.110" ~ 0.150" (2.79mm ~ 3.81mm)	0.110" ~ 0.150" (2.79mm ~ 3.81mm)
Contact Material	Brass	Brass
Contact Finish	Not specified	Tin
Color	Natural	Natural
RoHS Status	RoHS Compliant	RoHS Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS Code	8536.90.4000	8536.90.4000
Packaging	Not specified	Tape & Reel (TR)

Engineering Selection Recommendations

The 521471-2 is the direct substitute for the obsolete 521471-1. Both parts are manufactured by TE Connectivity AMP Connectors within the Ultrapod series and share identical electrical and mechanical specifications across all critical parameters.

The primary distinction is product status: the 521471-1 is obsolete while the 521471-2 is active. The 521471-2 is available in Tape & Reel packaging, which is standard for production environments. Both parts maintain RoHS compliance and identical MSL ratings.

The 521471-2 includes a tin contact finish, whereas the contact finish specification for the 521471-1 is not provided in the available documentation. This finish enhancement on the substitute part provides improved corrosion resistance and solderability characteristics while maintaining full electrical and mechanical compatibility.

For applications currently specified with 521471-1, direct substitution with 521471-2 is appropriate without design modification.

Frequently Asked Questions (FAQ)

Q: Are the 521471-1 and 521471-2 electrically and mechanically interchangeable?

A: Yes. Both parts share identical tab width (0.187"), tab thickness (0.020"), wire gauge range (14-18 AWG), terminal type (angled 90° flag), insulation type (fully insulated), and mounting configuration (free hanging in-line and right-angle). All critical electrical and mechanical parameters are equivalent.

Q: What is the difference between these two parts?

A: The 521471-1 is obsolete while the 521471-2 is active. The 521471-2 is supplied in Tape & Reel packaging and includes a tin contact finish. All functional specifications remain identical.

Q: Can I use 521471-2 in place of 521471-1 in existing designs?

A: Yes. The 521471-2 is the manufacturer-recommended substitute and maintains full compatibility with applications designed for the 521471-1.

Q: What packaging is available for the substitute part?

A: The 521471-2 is supplied in Tape & Reel (TR) packaging, which is standard for automated assembly and production environments.

Q: Are both parts RoHS compliant?

A: Yes. Both the 521471-1 and 521471-2 are RoHS compliant and carry identical MSL ratings of 1 (Unlimited).

Q: What wire gauge range does this connector support?

A: Both parts support 14-18 AWG wire gauges with an insulation diameter range of 0.110" to 0.150" (2.79mm to 3.81mm).

Q: Is the tin finish on the 521471-2 a functional difference?

A: The tin contact finish on the 521471-2 provides enhanced corrosion resistance and solderability. This is an improvement over the unspecified finish on the 521471-1 and does not affect electrical or mechanical compatibility.

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