TE Connectivity 641239-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 641239-2 is a 2-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 contacts, a closed-end design, and is rated for discrete or ribbon cable applications. The part is classified as obsolete, making identification of active equivalent components essential for procurement and design continuity. The substitute part 3-641239-2 provides functional equivalence with active product status and improved inventory availability.

Key Parameters

Parameter	Specification
Connector Type	Rectangular Receptacle
Number of Positions	2
Pitch	0.100" (2.54mm)
Contact Type	Female Socket
Cable Termination Method	IDC (Insulation Displacement Contact)
Wire Gauge	26 AWG
Contact Finish	Gold, 30.0µin (0.76µm)
Mounting Type	Free Hanging (In-Line), Right Angle
Fastening Type	Locking Ramp
Features	Closed End
Color	Blue
Series	MTA-100

Substitute Part Grouping Explanation

Substitution between the main part 641239-2 and the equivalent part 3-641239-2 is based on identical electrical and mechanical parameters. Both parts share the following critical specifications that determine functional interchangeability:

2-position configuration with 0.100" (2.54mm) pitch
Female socket contact type with gold plating at 30.0µin thickness
IDC termination for 26 AWG wire
Free hanging, right-angle mounting with locking ramp fastening
Closed-end design and blue color
MTA-100 series classification
ROHS3 compliance and MSL 1 rating

The primary distinction between these parts is product status and packaging. The 641239-2 is obsolete, while 3-641239-2 maintains active product status with significantly higher inventory availability (8,988 pieces versus 700 pieces).

Parameter Comparison

Parameter	641239-2 (Main Part)	3-641239-2 (Substitute)	Match Status
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors	Identical
Series	MTA-100	MTA-100	Identical
Connector Type	Rectangular Receptacle	Rectangular Receptacle	Identical
Number of Positions	2	2	Identical
Contact Type	Female Socket	Female Socket	Identical
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	Identical
Number of Rows	1	1	Identical
Mounting Type	Free Hanging (In-Line), Right Angle	Free Hanging (In-Line), Right Angle	Identical
Fastening Type	Locking Ramp	Locking Ramp	Identical
Cable Termination	IDC	IDC	Identical
Wire Type	Discrete or Ribbon Cable	Discrete or Ribbon Cable	Identical
Wire Gauge	26 AWG	26 AWG	Identical
Features	Closed End	Closed End	Identical
Contact Finish	Gold	Gold	Identical
Contact Finish Thickness	30.0µin (0.76µm)	30.0µin (0.76µm)	Identical
Color	Blue	Blue	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Identical
ECCN	EAR99	EAR99	Identical
HTSUS	8536.69.8000	8536.69.8000	Identical
Product Status	Obsolete	Active	Different
Packaging	Not specified	Bulk	Different

Engineering Selection Recommendations

The part 3-641239-2 is the direct functional equivalent of 641239-2 and is recommended for new designs and procurement activities. Selection criteria are based on the following factors:

Product Status: The 641239-2 is classified as obsolete, indicating discontinued manufacturing and limited long-term availability. The 3-641239-2 maintains active product status, ensuring continued supply chain access and manufacturing support.

Compliance and Certifications: Both parts maintain identical ROHS3 compliance, EAR99 export classification, and MSL 1 moisture sensitivity rating. No compliance trade-offs exist between the two parts.

Inventory Availability: The 3-641239-2 provides substantially higher inventory levels (8,988 pieces) compared to the 641239-2 (700 pieces), supporting both immediate procurement needs and long-term supply security.

Electrical and Mechanical Equivalence: All electrical parameters, mechanical dimensions, contact specifications, and termination methods are identical between the two parts. Direct substitution is supported without circuit or assembly modifications.

For applications currently using 641239-2, transition to 3-641239-2 is supported without design changes or performance impact.

Frequently Asked Questions (FAQ)

Q: Are 641239-2 and 3-641239-2 electrically identical?

A: Yes. Both parts are 2-position rectangular receptacle connectors with identical contact type, pitch, wire gauge rating, and gold contact finish specifications. Electrical performance and signal integrity characteristics are equivalent.

Q: Can 3-641239-2 be used as a direct replacement for 641239-2 in existing assemblies?

A: Yes. The parts share identical mechanical dimensions, mounting configurations, and IDC termination specifications. No assembly modifications or re-qualification is required.

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

A: The 641239-2 is obsolete with limited inventory (700 pieces), while 3-641239-2 is an active product with significantly higher availability (8,988 pieces). All functional specifications are identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant with identical MSL 1 ratings, ECCN EAR99 classification, and HTSUS code 8536.69.8000.

Q: Is there a packaging difference between these parts?

A: The 641239-2 packaging is not specified in available documentation. The 3-641239-2 is supplied in bulk packaging. Contact the manufacturer for specific packaging requirements for the 641239-2.

Q: Can these connectors accommodate both discrete and ribbon cable?

A: Yes. Both parts support discrete or ribbon cable termination using the IDC method at 26 AWG wire gauge.

Q: What is the pitch specification for these connectors?

A: Both parts feature a 0.100" (2.54mm) pitch, which is the standard spacing for MTA-100 series rectangular connectors.

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