TE Connectivity 641148-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 641148-4 is a 4-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 18 AWG wire. This connector features gold-plated female socket contacts, a closed-end design, and free-hanging in-line mounting with locking ramp fastening.

The 641148-4 carries an obsolete product status. Locating equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this connector configuration.

Substiute Parts

641148-4

TE Connectivity AMP ConnectorsIn Stock: 1134641148-4 Datasheet

Current PartRFQ

3-641148-4

TE Connectivity AMP ConnectorsIn Stock: 21853-641148-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 641148-4 is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must match identically for a part to function as a direct substitute:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (4)
• Pitch specification (0.156" / 3.96mm)
• Number of rows (1)
• Cable termination method (IDC)
• Wire gauge compatibility (18 AWG)
• Contact finish (Gold)
• Mounting configuration (Free Hanging In-Line)
• Fastening mechanism (Locking Ramp)
• Series designation (MTA-156)

Parts meeting these criteria are classified as direct equivalents and may be used interchangeably in applications originally designed for the 641148-4.

Parameter Comparison

Engineering Selection Recommendations

The 3-641148-4 is a direct functional equivalent to the obsolete 641148-4. All electrical and mechanical parameters are identical, ensuring pin-for-pin and form-factor compatibility.

The primary distinction between these parts is product status and regulatory compliance. The 641148-4 is obsolete and RoHS non-compliant, while the 3-641148-4 is active and ROHS3 compliant. For new designs, production continuity, or systems requiring regulatory compliance with current environmental standards, the 3-641148-4 is the appropriate selection.

Both parts share identical contact finish specifications, wire gauge compatibility, termination methodology, and mechanical mounting characteristics. No design modifications are required when transitioning from the 641148-4 to the 3-641148-4.

Frequently Asked Questions (FAQ)

Q: Can the 3-641148-4 be used as a direct replacement for the 641148-4?

A: Yes. The 3-641148-4 is electrically and mechanically equivalent to the 641148-4. All contact configurations, pitch spacing, termination methods, and mounting specifications are identical. No circuit modifications or mechanical redesign is necessary.

Q: What is the primary reason to substitute the 641148-4 with the 3-641148-4?

A: The 641148-4 is obsolete. The 3-641148-4 is an active product from the same manufacturer and series, ensuring ongoing availability and supply chain support. Additionally, the 3-641148-4 is ROHS3 compliant, meeting current environmental and regulatory requirements.

Q: Are there packaging differences between these parts?

A: The 641148-4 packaging specification is not provided in the technical data. The 3-641148-4 is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Do both connectors support the same wire gauges and termination methods?

A: Yes. Both the 641148-4 and 3-641148-4 support 18 AWG wire and IDC (Insulation Displacement Contact) termination. Both accept discrete or ribbon cable configurations.

Q: Are there any compliance or regulatory differences?

A: The 641148-4 is RoHS non-compliant. The 3-641148-4 is ROHS3 compliant. Both parts are REACH unaffected and classified under ECCN EAR99. If your application requires RoHS compliance, the 3-641148-4 is the appropriate selection.

Q: What is the contact finish specification for both parts?

A: Both connectors feature gold-plated contacts with a finish thickness of 3.00µin (0.076µm), ensuring equivalent electrical performance and corrosion resistance.