TE Connectivity 555140-2 Modular Connector Jack 6P4C RJ11/RJ14 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 555140-2 is a modular connector jack designed for 6-position 4-contact (6P4C) applications, commonly referenced as RJ11 or RJ14 configurations. This component features a 90-degree right-angle orientation with shielding and EMI finger protection, suitable for Category 3 rated applications. The connector utilizes through-hole solder termination and includes board lock and panel stop features for secure mounting.

The 555140-2 carries an obsolete product status, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement. The substitute part 5555140-2 provides direct functional equivalence with improved compliance characteristics and active product availability.

Substiute Parts

555140-2

TE Connectivity AMP ConnectorsIn Stock: 829555140-2 Datasheet

Current PartRFQ

5555140-2

TE Connectivity AMP ConnectorsIn Stock: 46145555140-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 555140-2 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part 5555140-2 qualifies as a direct equivalent based on the following criteria:

Electrical Parameters (Must Match):

• Connector type: Jack
• Position/contact configuration: 6P4C (RJ11, RJ14)
• Shielding specification: Shielded with EMI finger
• Category rating: Cat3
• Contact material and finish: Phosphor Bronze with Gold plating at 50.0µin thickness

Mechanical Parameters (Must Match):

• Mounting type: Through Hole
• Orientation: 90° Angle (Right)
• Termination method: Solder
• Housing material: Polybutylene Terephthalate (PBT), Polyester
• Tab direction: Down
• Features: Board Lock, Panel Stops

Environmental Parameters (Must Match):

• Operating temperature range: -40°C to 85°C
• Moisture sensitivity level: 1 (Unlimited)

The substitute part maintains complete parameter alignment with the main part across all specified dimensions, ensuring direct functional interchangeability in circuit board designs and applications.

Parameter Comparison

Engineering Selection Recommendations

The 555140-2 is classified as an obsolete product, making the 5555140-2 the appropriate selection for new designs and ongoing procurement requirements. Both parts maintain complete electrical and mechanical equivalence, ensuring direct interchangeability at the component level.

The 5555140-2 offers significant compliance advantages over the main part:

RoHS Compliance: The substitute part 5555140-2 is RoHS Compliant, whereas the 555140-2 is RoHS non-compliant. This distinction is critical for applications subject to European Union Restriction of Hazardous Substances regulations and equivalent global standards.

REACH Status: The substitute part 5555140-2 is REACH Unaffected, compared to the main part's REACH Affected status. This indicates improved regulatory positioning for supply chain and end-use applications.

Product Availability: The 5555140-2 maintains active product status with 4,585 units in stock, providing supply chain continuity. The obsolete 555140-2 carries limited inventory (722 units) and no future manufacturing support.

Packaging: The substitute part is supplied in Tray packaging, facilitating automated assembly processes and inventory management.

For all new circuit board designs, component procurement, and system integrations, the 5555140-2 is the specified selection. Existing designs utilizing the 555140-2 may transition to the 5555140-2 without circuit board modifications or electrical performance changes.

Frequently Asked Questions (FAQ)

Q: Are the 555140-2 and 5555140-2 electrically interchangeable?

A: Yes. Both parts are jack modular connectors with identical 6P4C (RJ11, RJ14) contact configurations, shielding specifications, and Category 3 ratings. Electrical performance and signal integrity characteristics are equivalent.

Q: Can the 5555140-2 be used as a direct replacement in existing circuit boards designed for the 555140-2?

A: Yes. The parts are mechanically and electrically identical. The 5555140-2 requires no circuit board layout modifications, mounting changes, or solder profile adjustments. Direct substitution is supported.

Q: What is the significance of the RoHS compliance difference between these parts?

A: The 5555140-2 is RoHS Compliant, meaning it contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, or polybrominated diphenyl ethers above specified thresholds. The 555140-2 is RoHS non-compliant. For applications subject to EU RoHS Directive 2011/65/EU or equivalent regulations, the 5555140-2 is required.

Q: Why is the 555140-2 listed as obsolete?

A: The 555140-2 has been discontinued by TE Connectivity. The 5555140-2 represents the current active product offering with identical specifications and improved compliance characteristics.

Q: Does packaging differ between these parts?

A: Yes. The 555140-2 packaging is not specified in available documentation. The 5555140-2 is supplied in Tray packaging, which is standard for automated assembly operations and high-volume procurement.

Q: Are there any temperature or environmental operating differences?

A: No. Both parts operate across the identical temperature range of -40°C to 85°C and share the same Moisture Sensitivity Level 1 (Unlimited) rating.

Q: What contact material and finish specifications apply to both parts?

A: Both parts utilize Phosphor Bronze contacts with Gold plating at 50.0µin (1.27µm) thickness, ensuring equivalent electrical conductivity, corrosion resistance, and contact reliability.

Q: Can the 5555140-2 be used in applications originally specified for the 555140-2?

A: Yes. The 5555140-2 is a direct functional equivalent. All electrical, mechanical, and environmental specifications are identical. The substitute part is suitable for all applications previously supported by the 555140-2.