TE Connectivity 641239-8 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 641239-8 is an 8-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 26 AWG wire. This connector features gold-plated female socket contacts, a closed-end design, and supports both discrete and ribbon cable configurations with a 0.100" (2.54mm) pitch.

The 641239-8 is classified as obsolete. Identification of functionally equivalent substitute parts is necessary to support ongoing maintenance, repair, and new design requirements where this connector type is specified.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	8
Pitch	0.100" (2.54mm)
Number of Rows	1
Cable Termination Method	IDC
Wire Gauge	26 AWG
Contact Finish	Gold
Contact Finish Thickness	30.0µin (0.76µm)
Mounting Type	Free Hanging (In-Line), Right Angle
Fastening Type	Locking Ramp
Features	Closed End
Series	MTA-100

Substitute Part Grouping Explanation

Substitution of the 641239-8 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

Connector type (Receptacle)
Contact type (Female Socket)
Number of positions (8)
Pitch (0.100" / 2.54mm)
Number of rows (1)
Cable termination method (IDC)
Wire gauge compatibility (26 AWG)
Contact finish specification (Gold, 30.0µin thickness)

Mechanical Parameters:

Mounting configuration (Free Hanging, In-Line, Right Angle)
Fastening mechanism (Locking Ramp)
Closed-end design
Series designation (MTA-100)

Parts meeting all these criteria are classified as direct functional equivalents. The substitute part identified maintains complete parameter alignment with the original specification.

Parameter Comparison

Parameter	641239-8 (Original)	3-641239-8 (Substitute)
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Series	MTA-100	MTA-100
Connector Type	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket
Number of Positions	8	8
Pitch	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	1	1
Mounting Type	Free Hanging (In-Line), Right Angle	Free Hanging (In-Line), Right Angle
Fastening Type	Locking Ramp	Locking Ramp
Cable Termination	IDC	IDC
Wire Type	Discrete or Ribbon Cable	Discrete or Ribbon Cable
Wire Gauge	26 AWG	26 AWG
Features	Closed End	Closed End
Contact Finish	Gold	Gold
Contact Finish Thickness	30.0µin (0.76µm)	30.0µin (0.76µm)
Color	Blue	Blue
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	Vendor Undefined	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8536.69.8000	8536.69.8000

Engineering Selection Recommendations

The 3-641239-8 is a direct functional equivalent to the 641239-8 across all electrical and mechanical parameters. Both connectors are manufactured by TE Connectivity and belong to the MTA-100 series with identical specifications for position count, pitch, termination method, wire gauge, and contact finish.

The primary distinction between these parts is product lifecycle status and regulatory compliance:

641239-8 (Original): Classified as obsolete with RoHS non-compliant status and vendor-undefined REACH status. This part is no longer in active production.

3-641239-8 (Substitute): Classified as active product status with ROHS3 compliance and REACH unaffected status. This part is currently manufactured and supported.

For new designs, maintenance applications, and systems requiring regulatory compliance documentation, the 3-641239-8 is the appropriate selection. The substitute part maintains complete functional and mechanical compatibility while offering active product support and current regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Are the 641239-8 and 3-641239-8 mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including mounting type (Free Hanging, In-Line, Right Angle), fastening mechanism (Locking Ramp), and closed-end design. They are fully interchangeable in applications where the MTA-100 series 8-position receptacle is specified.

Q: Can the 3-641239-8 be used as a direct replacement for the 641239-8 in existing assemblies?

A: Yes. The 3-641239-8 maintains complete electrical and mechanical compatibility with the 641239-8. All contact specifications, termination methods, and dimensional parameters are identical.

Q: What is the difference between the two part numbers?

A: The primary differences are product status and regulatory compliance. The 641239-8 is obsolete and RoHS non-compliant. The 3-641239-8 is an active product with ROHS3 compliance and REACH unaffected status. The "3-" prefix in the substitute part number indicates the current production variant.

Q: Are there packaging differences between these parts?

A: The 641239-8 packaging is listed as undefined. The 3-641239-8 is supplied in bulk packaging. Both parts are available in new original condition with substantial inventory levels.

Q: What wire gauges are supported by these connectors?

A: Both connectors are specified for 26 AWG wire. They support both discrete and ribbon cable configurations through IDC termination.

Q: Do these connectors require any special handling or storage conditions?

A: Both connectors have a Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no special moisture control requirements during storage or handling.

Q: Are these connectors suitable for applications requiring regulatory compliance?

A: The 3-641239-8 is ROHS3 compliant and REACH unaffected, making it suitable for applications with regulatory compliance requirements. The 641239-8 is RoHS non-compliant and should not be used in new designs subject to RoHS regulations.

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