TE Connectivity 644613-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644613-2 is a rectangular connector header, right-angle mounted, with 2 positions at 0.156" (3.96mm) pitch. This connector is designed for through-hole solder termination in board-to-cable/wire applications. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support, maintenance, and production continuity. Active alternatives with identical or compatible electrical and mechanical specifications are available from TE Connectivity and Molex.

Substiute Parts

644613-2

TE Connectivity AMP ConnectorsIn Stock: 878644613-2 Datasheet

Current PartRFQ

3-644613-2

TE Connectivity AMP ConnectorsIn Stock: 11953-644613-2 Datasheet

DirectRFQ

0026645020

MolexIn Stock: 267550026645020 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 644613-2 is determined by strict equivalence across the following critical parameters:

Primary Matching Criteria:

• Connector type (Header)
• Contact type (Male Pin)
• Pitch - mating (0.156" / 3.96mm)
• Number of positions (2)
• Number of rows (1)
• Mounting type (Through Hole, Right Angle)
• Termination method (Solder)
• Fastening type (Friction Lock)
• Voltage rating (600VAC)
• Operating temperature range (-55°C ~ 105°C)
• Material flammability rating (UL94 V-0)

Secondary Compatibility Factors:

• Contact length - mating (0.450" / 11.43mm)
• Contact shape (Square)
• Insulation material (Thermoplastic, Glass Filled or equivalent)
• Shrouding configuration (Shrouded - 1 Wall)
• Style (Board to Cable/Wire or Board to Board)

Parts meeting all primary criteria and compatible secondary factors are classified as direct substitutes. Minor variations in contact finish composition (Tin-Lead versus Tin) and contact material (Copper Alloy versus Brass) do not preclude substitution when all electrical and mechanical parameters align.

Parameter Comparison

Engineering Selection Recommendations

TE Connectivity 3-644613-2 (Direct Substitute)

The 3-644613-2 is the primary recommended substitute for the obsolete 644613-2. Both parts are from TE Connectivity's MTA-156 series and share identical electrical and mechanical specifications. The 3-644613-2 is currently in active production status with 1099 pieces in stock. The primary distinction is regulatory compliance: the 3-644613-2 is ROHS3 compliant, whereas the original 644613-2 is RoHS non-compliant. For applications requiring RoHS compliance, the 3-644613-2 is the appropriate selection. Contact finish composition differs (Tin versus Tin-Lead), but both finishes meet the same electrical performance requirements for this connector class.

Molex 0026645020 (Cross-Manufacturer Substitute)

The Molex 0026645020 from the KK396/42492 series provides cross-manufacturer compatibility for applications where Molex connectors are acceptable. This part matches all primary substitution criteria and maintains identical pitch, position count, mounting type, and termination method. Differences exist in contact length post (0.156" versus 0.125"), insulation height (0.394" versus 0.300"), insulation material (Polyester versus Thermoplastic, Glass Filled), and contact material (Brass versus Copper Alloy). The Molex part includes a board guide feature not present in the TE Connectivity versions. Voltage and operating temperature ratings are not specified for the Molex part; verification against application requirements is necessary. The 0026645020 is ROHS3 compliant and REACH unaffected, with 26700 pieces in stock.

Regulatory and Compliance Considerations

For new designs or applications with RoHS compliance mandates, the TE Connectivity 3-644613-2 is the preferred direct substitute. For legacy systems or applications without RoHS requirements, the original 644613-2 specifications remain valid. The Molex 0026645020 is suitable for applications where cross-manufacturer sourcing is permitted and mechanical variations (post length, insulation height, material composition) do not conflict with board layout or mating connector specifications.

Frequently Asked Questions (FAQ)

Q: Can the 3-644613-2 directly replace the 644613-2 in existing designs?

A: Yes. The 3-644613-2 is electrically and mechanically equivalent to the 644613-2. Both parts share identical pitch (0.156"), position count (2), mounting type (through-hole right-angle), contact length specifications, and voltage/temperature ratings. The primary difference is regulatory status: the 3-644613-2 is ROHS3 compliant. No design modifications are required for substitution.

Q: What are the key differences between the TE Connectivity and Molex options?

A: The TE Connectivity 3-644613-2 and Molex 0026645020 both meet the core substitution criteria (pitch, positions, mounting, termination). Differences include: contact post length (0.125" TE versus 0.156" Molex), insulation height (0.300" TE versus 0.394" Molex), insulation material (Thermoplastic, Glass Filled TE versus Polyester Molex), and contact material (Copper Alloy TE versus Brass Molex). The Molex part includes a board guide feature. These differences may affect board layout compatibility and mating connector selection.

Q: Is the Molex 0026645020 suitable for applications requiring voltage and temperature specifications?

A: The Molex 0026645020 datasheet does not specify voltage rating or operating temperature range. The TE Connectivity parts specify 600VAC and -55°C to 105°C. For applications with defined voltage or temperature requirements, the TE Connectivity 3-644613-2 is the appropriate selection. Molex part suitability requires verification against application specifications and consultation of detailed product documentation.

Q: Are there packaging differences between these substitutes?

A: The 644613-2 original part number does not specify packaging. The 3-644613-2 and 0026645020 are both supplied in bulk packaging. Inventory availability differs: 3-644613-2 has 1099 pieces in stock, while 0026645020 has 26700 pieces in stock.

Q: Do contact finish differences (Tin-Lead versus Tin) affect electrical performance?

A: No. Both Tin-Lead and Tin finishes meet electrical performance requirements for this connector class. The distinction is primarily regulatory: Tin-Lead finishes are associated with RoHS non-compliant parts (644613-2), while Tin finishes are used in ROHS3 compliant parts (3-644613-2 and 0026645020). Electrical conductivity and contact resistance specifications are equivalent.

Q: What is the significance of the board guide feature on the Molex part?

A: The Molex 0026645020 includes a board guide feature not present on TE Connectivity versions. This feature aids in connector alignment during assembly but may affect board layout compatibility. Verify that existing PCB designs accommodate or do not conflict with this feature before selecting the Molex substitute.

Q: Are all three parts suitable for industrial and general-purpose applications?

A: Yes. All three parts are rated for general-purpose and industrial applications. The 644613-2 and 3-644613-2 explicitly list these applications. The Molex 0026645020 is rated for automotive, general purpose, industrial, medical, and telecommunications applications, providing broader application coverage.