TE Connectivity 641148-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 641148-3 is a 3-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 part is classified as obsolete, making identification of active equivalent components essential for ongoing procurement and system maintenance.

Key Parameters

Parameter	Specification
Manufacturer	TE Connectivity AMP Connectors
Series	MTA-156
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	3
Pitch	0.156" (3.96mm)
Number of Rows	1
Cable Termination	IDC
Wire Gauge	18 AWG
Contact Finish	Gold
Contact Finish Thickness	3.00µin (0.076µm)
Mounting Type	Free Hanging (In-Line)
Fastening Type	Locking Ramp
Features	Closed End
Color	Orange
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 641148-3 is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications in the following critical areas:

Electrical Parameters: Wire gauge (18 AWG), contact finish (gold with 3.00µin thickness), and connector pitch (0.156" / 3.96mm)

Mechanical Parameters: Number of positions (3), number of rows (1), connector type (receptacle), contact type (female socket), mounting configuration (free hanging in-line), and fastening mechanism (locking ramp)

Termination Specifications: IDC cable termination method and support for discrete or ribbon cable

Environmental & Compliance: ROHS3 compliance, MSL rating 1, and REACH unaffected status

The substitute part 3-641148-3 meets all these criteria and represents the active production equivalent of the obsolete 641148-3.

Parameter Comparison

Parameter	641148-3 (Obsolete)	3-641148-3 (Active)	Match
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors	✓
Series	MTA-156	MTA-156	✓
Connector Type	Receptacle	Receptacle	✓
Contact Type	Female Socket	Female Socket	✓
Number of Positions	3	3	✓
Pitch	0.156" (3.96mm)	0.156" (3.96mm)	✓
Number of Rows	1	1	✓
Cable Termination	IDC	IDC	✓
Wire Gauge	18 AWG	18 AWG	✓
Contact Finish	Gold	Gold	✓
Contact Finish Thickness	3.00µin (0.076µm)	3.00µin (0.076µm)	✓
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	✓
Fastening Type	Locking Ramp	Locking Ramp	✓
Features	Closed End	Closed End	✓
Color	Orange	Orange	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
MSL Rating	1 (Unlimited)	1 (Unlimited)	✓
Product Status	Obsolete	Active	N/A
Packaging	Standard	Bulk	Different

Engineering Selection Recommendations

The part 3-641148-3 is the direct active equivalent of the obsolete 641148-3. Both components are manufactured by TE Connectivity within the MTA-156 series and share identical electrical, mechanical, and environmental specifications. The primary distinction is product status: 641148-3 is obsolete while 3-641148-3 is in active production.

For new designs and ongoing procurement, 3-641148-3 is the appropriate selection. This part maintains full ROHS3 compliance and carries the same MSL rating of 1 (unlimited moisture sensitivity level), ensuring compatibility with standard storage and handling protocols. The active status of 3-641148-3 provides assurance of continued availability and supply chain stability.

Packaging differs between the two parts (standard versus bulk), which may affect ordering quantities and logistics but does not impact functional or mechanical compatibility.

Frequently Asked Questions (FAQ)

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

A: Yes. The 3-641148-3 is the active production equivalent of the obsolete 641148-3. All electrical, mechanical, and environmental parameters are identical, including connector pitch, contact configuration, wire gauge compatibility, and compliance certifications.

Q: What is the difference between 641148-3 and 3-641148-3?

A: The primary difference is product status. The 641148-3 is obsolete, while 3-641148-3 is actively manufactured. Packaging also differs (standard versus bulk). All functional specifications remain identical.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. Both parts are 3-position receptacle connectors with identical pitch (0.156"), contact type (female socket), termination method (IDC), and wire gauge (18 AWG). They are mechanically and electrically interchangeable.

Q: Does the packaging difference affect connector performance?

A: No. Packaging (standard versus bulk) affects only order quantities and logistics. It does not impact the connector's electrical performance, mechanical fit, or environmental ratings.

Q: Are both parts RoHS compliant?

A: Yes. Both 641148-3 and 3-641148-3 are ROHS3 compliant and carry identical MSL ratings of 1 (unlimited), meeting standard environmental and regulatory requirements.

Q: What wire gauges are compatible with these connectors?

A: Both connectors are rated for 18 AWG wire and support discrete or ribbon cable termination via IDC (Insulation Displacement Contact) method.

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