TE Connectivity 640442-8 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640442-8 is an 8-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 26 AWG discrete or ribbon cable. This connector features tin-lead contact finish, a closed-end design, and free-hanging or right-angle mounting configuration with locking ramp fastening.

The 640442-8 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and production requirements for legacy systems utilizing this connector specification.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution eligibility for the 640442-8 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Connector type (Receptacle)
Number of positions (8)
Pitch (0.100" / 2.54mm)
Number of rows (1)
Contact type (Female Socket)
Cable termination method (IDC)
Wire gauge (26 AWG)
Wire type (Discrete or Ribbon Cable)
Mounting type (Free Hanging / Right Angle)
Fastening type (Locking Ramp)
Features (Closed End)
Series designation (MTA-100)

The substitute part 3-640442-8 maintains complete equivalence across all mandatory parameters. Differences in contact finish material (tin versus tin-lead) and product status (active versus obsolete) do not affect mechanical or electrical compatibility within the specified application parameters.

Parameter Comparison

Parameter	640442-8 (Main Part)	3-640442-8 (Substitute)
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Series	MTA-100	MTA-100
Connector Type	Receptacle	Receptacle
Number of Positions	8	8
Pitch	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	1	1
Contact Type	Female Socket	Female Socket
Cable Termination	IDC	IDC
Wire Gauge	26 AWG	26 AWG
Wire Type	Discrete or Ribbon Cable	Discrete or Ribbon Cable
Mounting Type	Free Hanging (In-Line), Right Angle	Free Hanging (In-Line), Right Angle
Fastening Type	Locking Ramp	Locking Ramp
Features	Closed End	Closed End
Contact Finish	Tin-Lead	Tin
Contact Finish Thickness	80.0µin (2.03µm)	80.0µin (2.03µm)
Color	Blue	Blue
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The 3-640442-8 serves as the direct active-production equivalent to the obsolete 640442-8. Both connectors are manufactured by TE Connectivity within the MTA-100 series and maintain identical mechanical and electrical specifications across all functional parameters.

Product Status Consideration: The 640442-8 is obsolete, while the 3-640442-8 is active. Selection of the active substitute part ensures access to current manufacturing inventory and ongoing supplier support.

Compliance Consideration: The 640442-8 is RoHS non-compliant, while the 3-640442-8 is ROHS3 compliant. Applications subject to RoHS3 regulatory requirements must utilize the 3-640442-8 substitute.

Contact Finish Consideration: The 640442-8 features tin-lead contact finish, while the 3-640442-8 features tin contact finish. Both maintain identical contact finish thickness (80.0µin / 2.03µm). The tin finish of the substitute part is compatible with standard IDC termination processes and does not affect connector performance within the specified 26 AWG wire gauge application.

Frequently Asked Questions (FAQ)

Q: Are the 640442-8 and 3-640442-8 mechanically interchangeable?

A: Yes. Both connectors share identical pitch (0.100" / 2.54mm), position count (8), row configuration (1 row), mounting type (free hanging / right angle), and fastening mechanism (locking ramp). They are mechanically interchangeable within the same application.

Q: Are the 640442-8 and 3-640442-8 electrically compatible?

A: Yes. Both connectors are rated for 26 AWG wire gauge, support IDC termination with discrete or ribbon cable, and maintain identical contact finish thickness (80.0µin / 2.03µm). They are electrically compatible within the specified application parameters.

Q: What is the difference between tin-lead and tin contact finish?

A: The 640442-8 uses tin-lead contact finish, while the 3-640442-8 uses tin contact finish. Both finishes are applied at identical thickness (80.0µin / 2.03µm) and are compatible with IDC termination processes. The tin finish of the substitute part does not affect connector performance or reliability.

Q: Why is the 640442-8 classified as obsolete?

A: The 640442-8 is no longer in active production. The 3-640442-8 is the current active equivalent from TE Connectivity and is recommended for new designs and ongoing production support.

Q: Does the RoHS compliance difference affect substitution?

A: The 640442-8 is RoHS non-compliant, while the 3-640442-8 is ROHS3 compliant. Applications subject to RoHS3 regulatory requirements must use the 3-640442-8. For applications without RoHS3 requirements, both parts are functionally equivalent.

Q: Can the 3-640442-8 be used as a direct replacement in legacy systems?

A: Yes. The 3-640442-8 maintains complete mechanical and electrical equivalence to the 640442-8 across all functional parameters. It is suitable for direct replacement in legacy systems utilizing the original 640442-8 specification.

Q: What packaging is available for the 3-640442-8?

A: The 3-640442-8 is supplied in bulk packaging, with 1555 pieces currently in stock as new original inventory.

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