TE Connectivity 1-644487-4 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-644487-4 is an active rectangular connector header designed for through-hole mounting applications. This 14-position, single-row connector operates within the MTA-100 series and provides board-to-cable/wire connectivity with shrouded 4-wall construction. The connector is specified for general-purpose applications requiring friction lock fastening and solder termination. Substitute parts are identified when inventory constraints, supply chain disruptions, or procurement requirements necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

1-644487-4

TE Connectivity AMP ConnectorsIn Stock: 11751-644487-4 Datasheet

Current PartRFQ

3-644487-4

TE Connectivity AMP ConnectorsIn Stock: 8623-644487-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for rectangular connector headers is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Pitch - Mating: 0.100" (2.54mm)
• Number of Positions: 14
• Number of Rows: 1
• Contact Type: Male Pin
• Voltage Rating: 250VAC
• Operating Temperature Range: -55°C ~ 105°C

Mechanical Compatibility Parameters:

• Connector Type: Header
• Mounting Type: Through Hole
• Shrouding: Shrouded - 4 Wall
• Termination: Solder
• Fastening Type: Friction Lock
• Contact Shape: Square

Material & Compliance Parameters:

• Contact Material: Copper Alloy
• Insulation Material: Polyester
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part 3-644487-4 maintains full equivalence across all electrical, mechanical, and compliance parameters. The only variance is in the Contact Finish - Post specification, which does not affect functional interchangeability in board-to-cable/wire applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 1-644487-4 and 3-644487-4 are active products manufactured by TE Connectivity within the MTA-100 series. Selection between these parts is based on availability and procurement requirements rather than technical differentiation.

Primary Part Selection (1-644487-4):

• Current inventory: 1,083 pieces
• ROHS3 compliant
• UL94 V-0 flammability rating
• REACH unaffected
• Contact finish post: Tin-Lead

Substitute Part Selection (3-644487-4):

• Current inventory: 824 pieces
• ROHS3 compliant
• UL94 V-0 flammability rating
• REACH unaffected
• Contact finish post: Tin

Both parts satisfy identical electrical performance requirements, mechanical interface specifications, and regulatory compliance standards. The contact finish post variance (Tin-Lead versus Tin) does not affect functional interchangeability in solder termination applications. Selection should be based on supply availability and project-specific procurement policies.

Frequently Asked Questions (FAQ)

Q: Are the 1-644487-4 and 3-644487-4 electrically interchangeable?

A: Yes. Both connectors operate at 250VAC, support the same 14-position, single-row configuration with 0.100" (2.54mm) pitch, and maintain identical contact specifications for mating and post dimensions. Electrical performance is equivalent across all rated parameters.

Q: What is the difference between Tin-Lead and Tin contact finish on the post?

A: The contact finish on the post affects the solder joint formation during assembly. Tin-Lead (1-644487-4) and Tin (3-644487-4) are both acceptable post finishes for solder termination. The choice between them depends on assembly process specifications and solder alloy compatibility. Both finishes are functionally compatible with standard PCB assembly procedures.

Q: Can I use 3-644487-4 as a direct replacement for 1-644487-4 in existing designs?

A: Yes. The 3-644487-4 maintains full mechanical and electrical compatibility with the 1-644487-4. No design modifications are required. Both connectors feature identical shrouding, mounting type, contact geometry, and operating temperature range.

Q: Are both parts RoHS compliant?

A: Yes. Both the 1-644487-4 and 3-644487-4 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

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

A: Both parts have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no special moisture control requirements during storage or handling.

Q: Do these connectors require any special installation procedures?

A: Both connectors are through-hole mounted with solder termination and friction lock fastening. Standard PCB assembly procedures apply. The board guide feature aids in proper alignment during installation.

Q: What is the current rating for these connectors?

A: The current rating varies by wire gauge. Consult the wire gauge specifications and associated current tables provided in the connector datasheet for specific amperage ratings.