TE Connectivity AMP Connectors 520250-9 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 520250-9 is a modular jack connector with 6 positions and 4 contacts (6p4c), configured for RJ11 and RJ14 applications. This connector features a 90° right-angle orientation, through-hole solder termination, and unshielded design rated for Category 3 performance. The part is currently classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where legacy compatibility is required.

Substiute Parts

520250-9

TE Connectivity AMP ConnectorsIn Stock: 1144520250-9 Datasheet

Current PartRFQ

A-2004-0-4-R

Assmann WSW ComponentsIn Stock: 1093A-2004-0-4-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 520250-9 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector type (Jack)
• Contact configuration (6p4c for RJ11/RJ14 compatibility)
• Mounting method (Through Hole)
• Orientation (90° Right Angle)
• Termination method (Solder)
• Shielding classification (Unshielded)
• Port and row configuration (1 port, 1 row)
• Operating temperature range (-40°C ~ 85°C)
• Contact material (Phosphor Bronze)
• Contact finish (Gold)
• Functional features (Board Lock, Panel Stops)
• Tab direction (Down)

The Assmann WSW Components A-2004-0-4-R meets all mandatory matching parameters and qualifies as a direct functional substitute. Variations in housing material composition (glass-filled versus standard PBT polyester) and contact finish thickness do not affect electrical or mechanical compatibility within the specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

The Assmann WSW Components A-2004-0-4-R is a direct functional substitute for the obsolete TE Connectivity 520250-9. Selection of the Assmann part provides the following advantages:

Product Status: The A-2004-0-4-R maintains active product status, ensuring continued availability and supply chain reliability compared to the obsolete 520250-9.

Regulatory Compliance: The Assmann substitute is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The original TE part carries undefined REACH status and non-applicable RoHS classification, reflecting its obsolete status.

Electrical and Mechanical Equivalence: All critical functional parameters match between the two parts. The housing material variation (glass-filled PBT versus standard PBT polyester) represents an enhancement in mechanical durability without affecting electrical performance or connector interface compatibility.

Contact Finish Specification: The Assmann part specifies 6.00µin (0.152µm) gold contact finish compared to the TE part's 50.0µin (1.27µm). Both finishes provide adequate corrosion resistance and electrical conductivity for Category 3 modular connector applications within the specified operating temperature range.

For new designs or system replacements, the Assmann WSW A-2004-0-4-R is the appropriate selection. For legacy system maintenance requiring exact historical specification matching, the TE Connectivity 520250-9 specifications remain available for reference.

Frequently Asked Questions (FAQ)

Q: Can the Assmann WSW A-2004-0-4-R be used as a direct replacement for the TE Connectivity 520250-9 in existing designs?

A: Yes. Both connectors share identical contact configurations (6p4c RJ11/RJ14), mounting methods (through-hole solder), orientations (90° right angle), and operating temperature ranges (-40°C ~ 85°C). The connectors are mechanically and electrically interchangeable.

Q: What is the difference in housing material between the two parts?

A: The TE Connectivity 520250-9 uses standard polybutylene terephthalate (PBT) polyester, while the Assmann WSW A-2004-0-4-R uses glass-filled PBT. Glass-filled PBT provides enhanced mechanical strength and dimensional stability. Both materials are suitable for the specified operating environment and do not affect connector interface compatibility.

Q: Does the difference in contact finish thickness affect performance?

A: No. The TE Connectivity part specifies 50.0µin (1.27µm) gold finish, while the Assmann part specifies 6.00µin (0.152µm). Both thicknesses provide adequate corrosion resistance and electrical conductivity for Category 3 modular connector applications. The difference reflects manufacturing process variations between manufacturers and does not impact functional performance.

Q: Why is the TE Connectivity 520250-9 classified as obsolete?

A: Obsolete status indicates the part is no longer in active production. The Assmann WSW A-2004-0-4-R maintains active status, ensuring continued availability for new procurements and system implementations.

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

A: The Assmann WSW A-2004-0-4-R is ROHS3 compliant and REACH unaffected. The TE Connectivity 520250-9 carries undefined REACH status and non-applicable RoHS classification due to its obsolete status. For applications requiring current regulatory compliance, the Assmann part is the appropriate selection.

Q: What is the packaging difference?

A: The TE Connectivity 520250-9 packaging is not specified in available documentation. The Assmann WSW A-2004-0-4-R is supplied in tray packaging. Packaging format does not affect connector performance or compatibility.

Q: Are both connectors suitable for Category 3 applications?

A: The TE Connectivity 520250-9 is explicitly rated for Category 3 performance. The Assmann WSW A-2004-0-4-R does not specify a category rating in available documentation but meets all physical and electrical parameters required for Category 3 modular connector applications.

Q: Can these connectors be used interchangeably in the same circuit board design?

A: Yes. Both connectors feature identical through-hole solder termination, 90° right-angle orientation, board lock and panel stop features, and down-facing tab direction. They occupy the same physical footprint and connect to identical mating plugs.