TE Connectivity 644662-6 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644662-6 is a 6-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 22 AWG wire. This connector features gold-plated female socket contacts, a polarizing key, and closed-end design for secure mating with corresponding plug connectors.

The 644662-6 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and production requirements for systems utilizing this connector type. Active production alternatives within the same electrical and mechanical specifications are available to ensure design continuity and supply chain reliability.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	6
Pitch	0.156" (3.96mm)
Number of Rows	1
Mounting Type	Free Hanging (In-Line)
Cable Termination	IDC
Wire Gauge	22 AWG
Contact Finish	Gold
Contact Finish Thickness	30.0µin (0.76µm)
Features	Closed End, Polarizing Key
Series	MTA-156

Substitute Part Grouping Explanation

Substitution of the 644662-6 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in the following areas:

Electrical Parameters:

Contact type (Female Socket)
Wire gauge compatibility (22 AWG)
Contact finish and thickness (Gold, 30.0µin)

Mechanical Parameters:

Connector type (Receptacle)
Number of positions (6)
Pitch spacing (0.156" / 3.96mm)
Row configuration (1 row)
Mounting type (Free Hanging, In-Line)
Fastening type (Locking Ramp)
Cable termination method (IDC)
Polarizing key and closed-end design

Compliance Parameters:

RoHS compliance status
REACH compliance status
Moisture sensitivity level (MSL 1)

The substitute part 3-644662-6 meets all these criteria and is therefore a direct functional equivalent.

Parameter Comparison

Parameter	644662-6 (Main Part)	3-644662-6 (Substitute)
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Series	MTA-156	MTA-156
Product Status	Obsolete	Active
Connector Type	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket
Number of Positions	6	6
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	Closed End, Polarizing Key	Closed End, Polarizing Key
Contact Finish	Gold	Gold
Contact Finish Thickness	30.0µin (0.76µm)	30.0µin (0.76µm)
Color	Red	Red
RoHS Status	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99

Engineering Selection Recommendations

The 3-644662-6 is the direct substitute for the obsolete 644662-6. Both parts are manufactured by TE Connectivity and belong to the MTA-156 series with identical electrical and mechanical specifications.

Primary Advantage of 3-644662-6: The substitute part maintains active product status, ensuring continued availability and supply chain support. This is critical for applications requiring ongoing component procurement and system maintenance.

Compliance Alignment: Both parts satisfy RoHS and REACH compliance requirements. The 3-644662-6 carries RoHS Compliant status while the original part is ROHS3 Compliant; both designations confirm lead-free and hazardous substance restrictions compliance. Moisture sensitivity level remains unchanged at MSL 1, indicating unlimited shelf life under standard storage conditions.

Functional Interchangeability: The 3-644662-6 provides complete functional interchangeability with the 644662-6 across all electrical and mechanical parameters. No design modifications or circuit adjustments are required when transitioning to the substitute part.

Frequently Asked Questions (FAQ)

Q: Can the 3-644662-6 be used as a direct replacement for the 644662-6 in existing designs?

A: Yes. The 3-644662-6 is electrically and mechanically identical to the 644662-6. All contact specifications, pitch, mounting configuration, and termination method are equivalent. No design changes are necessary.

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

A: The 644662-6 is obsolete, while the 3-644662-6 is active production. The packaging differs (the substitute is supplied in bulk), but the connector itself is functionally identical.

Q: Are there any compatibility concerns with existing mating connectors?

A: No. Both parts are MTA-156 series receptacles with identical pitch (0.156"), polarizing key design, and locking ramp fastening. They mate with the same plug connectors.

Q: Does the substitute part meet the same compliance standards?

A: Yes. Both parts are RoHS compliant, REACH unaffected, and carry MSL 1 rating. The substitute maintains all regulatory and environmental compliance requirements.

Q: What wire gauge and termination method does the 3-644662-6 support?

A: The substitute part supports 22 AWG wire using IDC (Insulation Displacement Contact) termination. This matches the original part specification exactly.

Q: Is the gold contact finish thickness the same on both parts?

A: Yes. Both the 644662-6 and 3-644662-6 feature gold contact finish with 30.0µin (0.76µm) thickness, ensuring equivalent electrical performance and corrosion resistance.

Q: Can discrete wires and ribbon cables be terminated in the 3-644662-6?

A: Yes. The substitute part accommodates both discrete and ribbon cable termination through its IDC contact design, identical to the original part.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message