TE Connectivity 644611-2 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644611-2 is a shrouded rectangular connector header designed for through-hole mounting in board-to-cable/wire applications. This 2-position connector operates within the MTA-156 series and features male pin contacts with 0.156" (3.96mm) pitch spacing. The connector is classified as Active product status and is suitable for general-purpose applications requiring reliable solder termination and friction lock fastening. Substitute parts are identified when equivalent electrical and mechanical specifications are required for component procurement, inventory management, or design flexibility across manufacturing batches.

Substiute Parts

644611-2

TE Connectivity AMP ConnectorsIn Stock: 1139644611-2 Datasheet

Current PartRFQ

3-644611-2

TE Connectivity AMP ConnectorsIn Stock: 60233-644611-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 3-644611-2 is functionally equivalent to the main part 644611-2 based on the following critical parameters that determine substitution validity:

Electrical Compatibility Parameters:

• Connector Type: Header (identical)
• Contact Type: Male Pin (identical)
• Number of Positions: 2 (identical)
• Pitch - Mating: 0.156" (3.96mm) (identical)
• Voltage Rating: 600VAC (identical)
• Operating Temperature Range: -55°C ~ 105°C (identical)

Mechanical Compatibility Parameters:

• Mounting Type: Through Hole (identical)
• Shrouding: Shrouded - 1 Wall (identical)
• Termination: Solder (identical)
• Fastening Type: Friction Lock (identical)
• Contact Length - Mating: 0.450" (11.43mm) (identical)
• Contact Length - Post: 0.125" (3.18mm) (identical)
• Overall Contact Length: 0.700" (17.78mm) (identical)
• Insulation Height: 0.545" (13.84mm) (identical)
• Contact Shape: Square (identical)
• Insulation Material: Thermoplastic, Glass Filled (identical)

Material & Compliance Parameters:

• Material Flammability Rating: UL94 V-0 (identical)
• Moisture Sensitivity Level: 1 (Unlimited) (identical)
• ECCN: EAR99 (identical)
• HTSUS: 8536.69.4040 (identical)

The primary difference between the parts is the contact finish specification and packaging configuration, which do not affect functional interchangeability in standard applications.

Parameter Comparison

Engineering Selection Recommendations

Both the TE Connectivity 644611-2 and 3-644611-2 are Active product status components manufactured by TE Connectivity AMP Connectors within the MTA-156 series. Both parts maintain identical electrical and mechanical specifications, including voltage rating, operating temperature range, and physical dimensions.

The 644611-2 features Tin-Lead contact finish, while the 3-644611-2 features Tin contact finish. Both finishes meet the 150.0µin (3.81µm) thickness specification and provide equivalent electrical performance. The 3-644611-2 offers enhanced RoHS3 compliance status compared to the standard RoHS compliance of the 644611-2.

Both parts satisfy UL94 V-0 flammability requirements and maintain Moisture Sensitivity Level 1 (Unlimited), indicating no special handling requirements during storage or assembly.

The 3-644611-2 is available in Bulk packaging with higher inventory availability (5920 Pcs), while the 644611-2 is available in standard packaging with 1096 Pcs in stock. Selection between these parts should be based on packaging requirements, compliance specifications, and inventory availability for the specific application.

Frequently Asked Questions (FAQ)

Q: Are the 644611-2 and 3-644611-2 mechanically interchangeable?

A: Yes. Both parts share identical mechanical specifications including mounting type (Through Hole), shrouding configuration (Shrouded - 1 Wall), contact dimensions, and insulation height. They are directly interchangeable in board-level applications.

Q: What is the difference between Tin-Lead and Tin contact finishes?

A: The 644611-2 uses Tin-Lead contact finish, while the 3-644611-2 uses Tin contact finish. Both finishes are applied at 150.0µin (3.81µm) thickness and provide equivalent electrical conductivity and contact resistance characteristics. The Tin finish in the 3-644611-2 aligns with lead-free manufacturing standards.

Q: Do both parts meet RoHS requirements?

A: Yes. The 644611-2 is RoHS Compliant, and the 3-644611-2 is ROHS3 Compliant. Both parts satisfy regulatory requirements for restricted substances. The ROHS3 designation indicates compliance with the most current RoHS directive revision.

Q: What is the significance of the packaging difference?

A: The 644611-2 is supplied in standard packaging, while the 3-644611-2 is supplied in Bulk packaging. Bulk packaging typically accommodates higher-volume procurement and may offer cost advantages for large-scale manufacturing operations. The connector specifications remain identical regardless of packaging configuration.

Q: Can these connectors be used in high-temperature applications?

A: Both parts operate within the temperature range of -55°C to 105°C. Applications requiring operation outside this range require alternative connector designs.

Q: What is the voltage rating for these connectors?

A: Both the 644611-2 and 3-644611-2 are rated for 600VAC operation. Current rating varies by wire gauge used in the application.

Q: Are these connectors suitable for industrial applications?

A: Yes. Both parts are classified for General Purpose applications. The 3-644611-2 is additionally designated for Industrial applications. Both maintain UL94 V-0 flammability ratings and operate across extended temperature ranges suitable for industrial environments.

Q: What is the mating pitch specification?

A: Both connectors feature a 0.156" (3.96mm) mating pitch, which is the standard spacing for the MTA-156 series. This specification ensures compatibility with corresponding receptacle connectors in the same series.