TE Connectivity AMP Connectors 521785-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 521785-1 is a 2 Position Housing Connector Female Receptacle designed for 0.250" (6.35mm) Quick Connect, Disconnect applications. This component is part of the Faston series and features a natural polyamide (PA66) housing suitable for free-hanging, in-line mounting configurations. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity and ensure long-term component availability for new designs and production requirements.

Substiute Parts

521785-1

TE Connectivity AMP ConnectorsIn Stock: 1204521785-1 Datasheet

Current PartRFQ

1-521785-1

TE Connectivity AMP ConnectorsIn Stock: 64511-521785-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 521785-1 is determined by strict equivalence across the following critical parameters:

Electrical & Mechanical Compatibility Parameters:

• Terminal Type: Quick Connect, Disconnect
• Gender: Female, Receptacle
• Terminal Size: 0.250" (6.35mm)
• Number of Positions: 2
• Series: Faston
• Stacking Direction: Perpendicular
• Mounting Type: Free Hanging (In-Line)

Material & Environmental Compliance Parameters:

• Housing Material: Polyamide (PA66), Nylon 6/6
• Color: Natural
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part 1-521785-1 maintains identical specifications across all critical parameters while offering active product status and improved inventory availability. Both parts are designed for use with 0.250" (6.35mm) Quick Connects and share the same base product number (521785), confirming functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The part 1-521785-1 is the direct active equivalent for the obsolete 521785-1. Selection of the substitute part is based on the following engineering criteria:

Product Status Consideration: The original part 521785-1 carries obsolete status, which restricts long-term availability and future procurement reliability. The substitute 1-521785-1 maintains active product status, ensuring continued manufacturer support and supply chain stability.

Compliance & Certification Equivalence: Both parts maintain identical ROHS3 compliance and EAR99 export classification. The substitute part meets all regulatory requirements specified for the original component.

Functional Equivalence: All electrical and mechanical parameters are identical, including terminal type, gender, terminal size, position count, mounting configuration, and material composition. The substitute part is functionally interchangeable without design modification.

Inventory & Availability: The substitute part demonstrates significantly higher inventory availability (6400 units versus 1094 units), supporting both immediate procurement needs and long-term production planning.

Packaging Consideration: The substitute part is supplied in bulk packaging, which may require evaluation against specific receiving and handling procedures. This represents the only non-functional difference between the two parts.

Frequently Asked Questions (FAQ)

Q: Can 1-521785-1 be used as a direct replacement for 521785-1 in existing designs?

A: Yes. The substitute part 1-521785-1 is functionally identical to 521785-1 across all critical electrical and mechanical parameters. No design modification is required for direct substitution in applications currently using the obsolete part.

Q: What is the primary reason for substituting 521785-1?

A: The original part 521785-1 is classified as obsolete, which limits future availability and manufacturer support. The substitute 1-521785-1 is an active product with confirmed long-term availability and higher inventory levels.

Q: Are there any compliance differences between the two parts?

A: No. Both parts maintain identical ROHS3 compliance status, Moisture Sensitivity Level 1 (Unlimited), and export classification (EAR99). Regulatory requirements are fully equivalent.

Q: What is the difference in packaging between these parts?

A: The original part 521785-1 packaging is not specified. The substitute part 1-521785-1 is supplied in bulk packaging. Bulk packaging may require evaluation against your receiving, storage, and handling procedures.

Q: Are the terminal specifications identical?

A: Yes. Both parts feature identical terminal specifications: 0.250" (6.35mm) Quick Connect, Disconnect female receptacle terminals in a 2-position configuration with perpendicular stacking direction.

Q: Is the material composition the same?

A: Yes. Both parts use identical Polyamide (PA66), Nylon 6/6 housing material in natural color, ensuring equivalent mechanical and environmental performance.

Q: What is the inventory advantage of the substitute part?

A: The substitute part 1-521785-1 has 6400 units in stock compared to 1094 units for the obsolete part, providing significantly improved availability for both immediate and future procurement requirements.

Q: Can these parts be used interchangeably in new designs?

A: Yes. For new designs, the active substitute part 1-521785-1 is the appropriate selection, as it provides identical functionality with the advantage of active product status and improved long-term availability.