TE Connectivity 644467-8 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644467-8 is an 8-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 22 AWG discrete or ribbon cable. This connector features a tin-lead contact finish, feed-through design, and polarizing key for secure mating alignment.

The 644467-8 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and new design requirements where this connector type is specified or functionally required.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Number of Positions	8
Pitch	0.156" (3.96mm)
Series	MTA-156
Cable Termination Method	IDC
Wire Gauge	22 AWG
Contact Type	Female Socket
Mounting Type	Free Hanging (In-Line)
Number of Rows	1
Fastening Type	Locking Ramp
Features	Feed Through, Polarizing Key
Contact Finish Thickness	80.0µin (2.03µm)
Color	Red
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 644467-8 is determined by strict equivalence across the following critical parameters:

Connector Type & Contact Configuration: Receptacle with female socket contacts
Position Count & Pitch: 8 positions at 0.156" (3.96mm) pitch
Series Designation: MTA-156 series
Termination Method: IDC cable termination
Wire Gauge Compatibility: 22 AWG
Mounting & Fastening: Free hanging in-line with locking ramp fastening
Functional Features: Feed through and polarizing key
Contact Finish Thickness: 80.0µin (2.03µm)

The substitute part 3-644467-8 meets all these criteria. The primary difference is the contact finish material (tin versus tin-lead) and product status (active versus obsolete).

Parameter Comparison

Parameter	644467-8 (Main Part)	3-644467-8 (Substitute)
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	8	8
Pitch	0.156" (3.96mm)	0.156" (3.96mm)
Number of Rows	1	1
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)
Fastening Type	Locking Ramp	Locking Ramp
Cable Termination	IDC	IDC
Wire Type	Discrete or Ribbon Cable	Discrete or Ribbon Cable
Wire Gauge	22 AWG	22 AWG
Features	Feed Through, Polarizing Key	Feed Through, Polarizing Key
Contact Finish Thickness	80.0µin (2.03µm)	80.0µin (2.03µm)
Color	Red	Red
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active
Contact Finish	Tin-Lead	Tin
RoHS Status	RoHS non-compliant	RoHS Compliant

Engineering Selection Recommendations

The 3-644467-8 is the direct substitute for the obsolete 644467-8. Both connectors are manufactured by TE Connectivity and share identical mechanical and electrical specifications within the MTA-156 series.

Product Status Consideration: The 644467-8 is obsolete, while the 3-644467-8 is active. For new designs, maintenance programs, and long-term supply chain planning, the 3-644467-8 is the appropriate selection.

Compliance Consideration: The 3-644467-8 is RoHS compliant, whereas the 644467-8 is RoHS non-compliant. Applications subject to RoHS regulations require the 3-644467-8.

Contact Finish Difference: The 644467-8 features tin-lead plating, while the 3-644467-8 features tin plating. Both maintain the same contact finish thickness of 80.0µin (2.03µm). The tin finish of the 3-644467-8 aligns with modern manufacturing standards and RoHS compliance requirements.

Electrical & Mechanical Compatibility: The connectors are fully interchangeable in applications requiring 8-position, 0.156" pitch IDC receptacles with 22 AWG wire termination, feed-through design, and polarizing key features.

Frequently Asked Questions (FAQ)

Q: Can the 3-644467-8 directly replace the 644467-8 in existing applications?

A: Yes. The 3-644467-8 is mechanically and electrically equivalent to the 644467-8. Both connectors share identical pitch, position count, termination method, wire gauge compatibility, and functional features. The connectors are fully interchangeable.

Q: What is the primary difference between these two parts?

A: The main differences are product status and contact finish material. The 644467-8 is obsolete with tin-lead plating and RoHS non-compliant status. The 3-644467-8 is active with tin plating and RoHS compliant status. Both maintain identical contact finish thickness and electrical performance.

Q: Are there any compatibility issues with ribbon cable or discrete wire?

A: No. Both connectors support IDC termination for discrete or ribbon cable at 22 AWG. The termination method and wire gauge specifications are identical.

Q: Does the tin finish of the 3-644467-8 affect performance compared to the tin-lead finish?

A: No. Both finishes provide equivalent electrical and mechanical performance at the specified contact finish thickness of 80.0µin (2.03µm). The tin finish of the 3-644467-8 meets modern manufacturing and regulatory standards.

Q: What is the significance of the RoHS compliance difference?

A: RoHS compliance is a regulatory requirement in many markets and applications. The 3-644467-8 is RoHS compliant, making it suitable for applications subject to RoHS regulations. The 644467-8, being RoHS non-compliant, may not be acceptable in regulated environments.

Q: Are both connectors available in the same packaging?

A: The 644467-8 packaging is not specified in the available data. The 3-644467-8 is available in bulk packaging. Confirm packaging requirements with your supplier for specific application needs.

Q: What is the moisture sensitivity level for these connectors?

A: Both connectors have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without special moisture control requirements.

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