TE Connectivity 644020-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644020-4 is a 4-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 part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure procurement availability for new production and field service applications.

Substiute Parts

644020-4

TE Connectivity AMP ConnectorsIn Stock: 902644020-4 Datasheet

Current PartRFQ

3-644020-4

TE Connectivity AMP ConnectorsIn Stock: 21323-644020-4 Datasheet

DirectRFQ

3-644020-5

TE Connectivity AMP ConnectorsIn Stock: 55143-644020-5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 644020-4 is determined by strict alignment of the following critical parameters:

Direct Equivalency Criteria:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (4)
• Pitch (0.100" / 2.54mm)
• Number of rows (1)
• Mounting type (Free Hanging, In-Line, Right Angle)
• Cable termination method (IDC)
• Wire gauge (24 AWG)
• Contact finish (Gold)
• Contact finish thickness (30.0µin / 0.76µm)
• Features (Closed End)
• Series (MTA-100)

Similar Part Criteria: Parts that share the same series, connector type, contact type, pitch, mounting type, cable termination, wire gauge, contact finish, and features but differ in the number of positions are classified as similar alternatives. These parts are suitable only when circuit design permits accommodation of the different position count.

Parameter Comparison

Engineering Selection Recommendations

3-644020-4 (Direct Equivalent - Recommended Primary Substitute)

The 3-644020-4 is the direct functional equivalent of the obsolete 644020-4. Both parts maintain identical electrical and mechanical specifications across all critical parameters: 4-position configuration, 0.100" pitch, IDC termination for 24 AWG wire, gold contact finish at 30.0µin thickness, and closed-end design. The 3-644020-4 is currently in active production status with ROHS3 compliance certification and significantly higher inventory availability (2079 pcs vs. 848 pcs). This part provides seamless substitution for new designs and field service applications without circuit modification.

3-644020-5 (Similar Alternative - Conditional Use)

The 3-644020-5 shares all electrical and mechanical characteristics with the main part except for position count (5 positions versus 4 positions). This part is suitable only when circuit design can accommodate the additional contact position. The 3-644020-5 maintains identical pitch, termination method, wire gauge, contact finish specifications, and mounting configuration. This part is in active production status with the highest inventory availability (5483 pcs) and is applicable to designs requiring expanded connector capacity within the MTA-100 series.

Frequently Asked Questions (FAQ)

Q: Can the 3-644020-4 be used as a direct replacement for the 644020-4?

A: Yes. The 3-644020-4 is a direct equivalent with identical electrical and mechanical specifications. Both are 4-position receptacle connectors with 0.100" pitch, IDC termination, 24 AWG wire rating, and gold contact finish. The primary difference is product status: 644020-4 is obsolete while 3-644020-4 is active production.

Q: What is the difference between the 644020-4 and 3-644020-5?

A: The 3-644020-5 has 5 contact positions instead of 4. All other specifications remain identical: same pitch (0.100"), same IDC termination method, same 24 AWG wire gauge, same gold contact finish, and same mounting configuration. The 3-644020-5 is suitable only if the circuit design permits use of the additional contact position.

Q: Are there any compliance differences between the substitute parts?

A: The 3-644020-4 carries ROHS3 certification while the original 644020-4 carries RoHS compliance. Both parts maintain MSL 1 (Unlimited) moisture sensitivity rating and EAR99 export classification. All parts share identical HTSUS code 8536.69.8000.

Q: What packaging options are available for the substitute parts?

A: The 3-644020-4 is supplied in bulk packaging. The 3-644020-5 is also supplied in bulk packaging. Both parts are available in active production with substantial inventory levels.

Q: Can the 644020-4 and 3-644020-4 be used interchangeably in existing designs?

A: Yes. The 3-644020-4 provides complete functional and mechanical interchangeability with the 644020-4. No circuit modifications, PCB changes, or cable reconfiguration are required. Both connectors accept identical IDC-terminated 24 AWG wire and maintain the same contact pitch and mounting orientation.

Q: Is the contact finish thickness identical across all three parts?

A: Yes. All three parts (644020-4, 3-644020-4, and 3-644020-5) specify gold contact finish at 30.0µin (0.76µm) thickness, ensuring consistent electrical performance and corrosion resistance.

Q: What is the significance of the MTA-100 series designation?

A: The MTA-100 series designation indicates these are all members of the same connector family, sharing the 0.100" (2.54mm) pitch standard and IDC termination methodology. This ensures mechanical and electrical compatibility within the series for applications requiring multiple position configurations.