TE Connectivity 644020-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644020-2 is a 2-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 24 AWG wire. This connector features gold-plated female socket contacts, a closed-end design, and is rated for discrete or ribbon cable applications.

The 644020-2 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production and field service requirements for systems utilizing this connector configuration.

Substiute Parts

644020-2

TE Connectivity AMP ConnectorsIn Stock: 1065644020-2 Datasheet

Current PartRFQ

3-644020-2

TE Connectivity AMP ConnectorsIn Stock: 26173-644020-2 Datasheet

DirectRFQ

3-644020-3

TE Connectivity AMP ConnectorsIn Stock: 55903-644020-3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 644020-2 are identified based on strict electrical and mechanical parameter alignment within the MTA-100 series. The substitution logic is organized into two categories:

Direct Equivalent Substitutes maintain all critical parameters: 2-position configuration, 0.100" pitch, IDC termination for 24 AWG wire, gold contact finish at 30.0µin thickness, closed-end design, locking ramp fastening, and free hanging/right angle mounting. These parts differ only in product status (active versus obsolete) and packaging configuration.

Similar Series Substitutes share the same series designation, connector type, contact type, pitch, mounting type, fastening type, cable termination method, wire gauge, contact finish specifications, and compliance certifications. However, these parts differ in the number of positions, making them suitable only for applications where position count flexibility is acceptable.

Key parameters determining substitution eligibility:

• Series: MTA-100
• Connector Type: Receptacle
• Contact Type: Female Socket
• Pitch: 0.100" (2.54mm)
• Cable Termination: IDC
• Wire Gauge: 24 AWG
• Contact Finish: Gold at 30.0µin
• Fastening Type: Locking Ramp
• Features: Closed End

Parameter Comparison

Engineering Selection Recommendations

3-644020-2 (Direct Equivalent Substitute)

The 3-644020-2 is the primary substitute for the obsolete 644020-2. This part maintains identical electrical and mechanical specifications across all critical parameters: 2-position configuration, 0.100" pitch, IDC termination for 24 AWG wire, gold contact finish at 30.0µin thickness, closed-end design, and locking ramp fastening. The 3-644020-2 carries active product status and is available in bulk packaging with higher inventory levels (2512 units), ensuring supply chain continuity. Both parts are RoHS compliant and carry MSL 1 rating. Selection of the 3-644020-2 is appropriate for direct replacement in applications currently utilizing the 644020-2.

3-644020-3 (Similar Series Substitute)

The 3-644020-3 is a similar series substitute suitable for applications where connector position count can be modified. This part shares all electrical and mechanical characteristics with the main part except for the number of positions (3 instead of 2). The 3-644020-3 maintains the same series designation, pitch, termination method, wire gauge, contact finish specifications, and compliance certifications. This substitute is applicable only when system design permits accommodation of an additional contact position. The 3-644020-3 is active and available with the highest inventory level (5501 units).

Frequently Asked Questions (FAQ)

Q: Can the 3-644020-2 be used as a direct replacement for the 644020-2?

A: Yes. The 3-644020-2 is a direct equivalent substitute. Both parts share identical specifications for connector type, contact type, number of positions, pitch, mounting type, fastening type, cable termination method, wire gauge, contact finish, and compliance ratings. The primary difference is product status: the 644020-2 is obsolete while the 3-644020-2 is active.

Q: What is the difference between the 3-644020-2 and 3-644020-3?

A: The 3-644020-2 and 3-644020-3 differ in the number of positions: the 3-644020-2 has 2 positions while the 3-644020-3 has 3 positions. All other electrical and mechanical parameters are identical, including pitch, termination method, wire gauge, and contact finish specifications.

Q: Can the 3-644020-3 be used in place of the 644020-2?

A: The 3-644020-3 can be used only if the application design permits modification to accommodate an additional contact position. The 3-position configuration is not a direct replacement for the 2-position 644020-2 and requires circuit design evaluation.

Q: What does IDC termination mean?

A: IDC (Insulation Displacement Contact) termination is a cable connection method where the connector contacts pierce through the wire insulation to establish electrical contact. This method is used with discrete or ribbon cable and does not require wire stripping prior to termination.

Q: Are all substitute parts RoHS compliant?

A: Yes. The 644020-2, 3-644020-2, and 3-644020-3 are all RoHS compliant. All parts carry MSL 1 (Unlimited) moisture sensitivity level rating.

Q: What is the contact finish thickness specification?

A: All parts in this comparison maintain a gold contact finish thickness of 30.0µin (0.76µm), ensuring consistent electrical performance and corrosion resistance across all substitute options.

Q: Does packaging type affect electrical or mechanical compatibility?

A: No. The 644020-2 is supplied in standard packaging while the 3-644020-2 and 3-644020-3 are supplied in bulk packaging. Packaging type does not affect electrical or mechanical compatibility; it pertains only to order quantity and handling considerations.