TE Connectivity 640440-3 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640440-3 is a 3-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 22 AWG discrete or ribbon cable. This connector features tin-lead contact finish, a closed-end design, and locking ramp fastening for secure mating.

The 640440-3 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and production requirements for legacy systems utilizing this connector configuration.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Number of Positions	3
Pitch	0.100" (2.54mm)
Number of Rows	1
Contact Type	Female Socket
Cable Termination	IDC
Wire Gauge	22 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 of the 640440-3 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

Connector type (Receptacle)
Number of positions (3)
Contact type (Female Socket)
Pitch (0.100" / 2.54mm)
Number of rows (1)
Cable termination method (IDC)
Wire gauge compatibility (22 AWG)
Wire type support (Discrete or Ribbon Cable)

Mechanical Compatibility Parameters:

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

The substitute part 3-640440-3 maintains full equivalence across all electrical and mechanical parameters. The primary distinction between the main part and its substitute is the contact finish specification and product status classification.

Parameter Comparison

Parameter	640440-3 (Main Part)	3-640440-3 (Substitute)
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Series	MTA-100	MTA-100
Connector Type	Receptacle	Receptacle
Number of Positions	3	3
Contact Type	Female Socket	Female Socket
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	22 AWG	22 AWG
Features	Closed End	Closed End
Contact Finish	Tin-Lead	Tin
Contact Finish Thickness	80.0µin (2.03µm)	80.0µin (2.03µm)
Color	Red	Red
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS Code	8536.69.8000	8536.69.8000

Engineering Selection Recommendations

The substitute part 3-640440-3 is functionally equivalent to the obsolete 640440-3 across all electrical and mechanical parameters. Selection between these parts is determined by availability and regulatory compliance requirements.

640440-3 (Obsolete):

Product status: Obsolete
RoHS compliance: ROHS3 Compliant
Contact finish: Tin-Lead
Suitable for legacy system maintenance where tin-lead contact finish is specified or required

3-640440-3 (Active):

Product status: Active
RoHS compliance: RoHS Compliant
Contact finish: Tin
Recommended for new designs and ongoing production due to active availability
Tin contact finish meets modern RoHS requirements
Significantly higher inventory availability (83,788 pcs vs. 1,123 pcs)

Both parts maintain identical moisture sensitivity level (MSL 1), export classification (EAR99), and tariff coding. The 3-640440-3 is the preferred selection for applications requiring active component sourcing and modern compliance standards.

Frequently Asked Questions (FAQ)

Q: Can the 3-640440-3 directly replace the 640440-3 in existing assemblies?

A: Yes. The 3-640440-3 maintains full electrical and mechanical equivalence to the 640440-3. Both connectors are 3-position MTA-100 series receptacles with identical pitch (0.100"), IDC termination, 22 AWG wire gauge compatibility, mounting type, and fastening mechanism. The primary difference is contact finish (tin versus tin-lead) and product status.

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

A: The 640440-3 features tin-lead contact finish, while the 3-640440-3 features tin contact finish. Both maintain the same contact finish thickness (80.0µin / 2.03µm). The tin finish in the 3-640440-3 aligns with modern RoHS compliance requirements. Both finishes are suitable for IDC termination with 22 AWG cable.

Q: Are there packaging differences between these parts?

A: The 640440-3 packaging specification is not provided. The 3-640440-3 is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Why is the 640440-3 classified as obsolete?

A: The 640440-3 is no longer in active production. The 3-640440-3 serves as the active equivalent, offering improved availability and modern compliance standards.

Q: Do both parts meet RoHS requirements?

A: Yes. The 640440-3 is ROHS3 Compliant. The 3-640440-3 is RoHS Compliant. Both meet regulatory requirements for their respective classifications.

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

A: Both the 640440-3 and 3-640440-3 have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without special moisture control requirements.

Q: Can these connectors be used with both discrete and ribbon cable?

A: Yes. Both the 640440-3 and 3-640440-3 support discrete or ribbon cable termination via IDC at 22 AWG wire gauge.

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