TE Connectivity AMP Connectors 644613-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 644613-3 is a rectangular connector header designed for through-hole, right-angle mounting applications. This connector features a 3-position configuration with 0.156" (3.96mm) pitch spacing, suitable for board-to-cable/wire connections in general purpose and industrial applications. The part is classified as obsolete, necessitating identification of active equivalent alternatives to ensure continued design support and procurement availability.

Substiute Parts

644613-3

TE Connectivity AMP ConnectorsIn Stock: 932644613-3 Datasheet

Current PartRFQ

3-644613-3

TE Connectivity AMP ConnectorsIn Stock: 24203-644613-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 644613-3 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility:

• Pitch spacing: 0.156" (3.96mm)
• Number of positions: 3
• Contact type: Male Pin
• Voltage rating: 600VAC
• Operating temperature range: -55°C ~ 105°C

Mechanical Compatibility:

• Connector type: Header
• Mounting type: Through Hole, Right Angle
• Shrouding: Shrouded - 1 Wall
• Contact length - mating: 0.450" (11.43mm)
• Contact length - post: 0.125" (3.18mm)
• Insulation height: 0.300" (7.62mm)
• Contact shape: Square

Material & Compliance:

• Insulation material: Thermoplastic, Glass Filled
• Material flammability rating: UL94 V-0
• Contact material: Copper Alloy
• Termination: Solder
• Fastening type: Friction Lock

The substitute part 3-644613-3 maintains full equivalence across all critical parameters while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-644613-3 is a direct functional equivalent to the obsolete 644613-3. Both parts share identical electrical and mechanical specifications within the MTA-156 series rectangular connector family.

Primary Advantage of 3-644613-3: The substitute part maintains active product status with TE Connectivity, ensuring long-term availability and supply chain continuity. Current inventory of 2,402 pieces is available compared to the obsolete status of the original part.

Compliance Considerations: Both parts meet UL94 V-0 flammability requirements and maintain equivalent RoHS compliance status. The substitute part carries RoHS Compliant designation while the original carries ROHS3 Compliant designation; both satisfy modern regulatory requirements for lead-free or controlled lead content applications.

Contact Finish Difference: The original part specifies Tin-Lead contact finish, while the substitute specifies Tin finish. Both maintain identical contact finish thickness of 150.0µin (3.81µm) on mating and post surfaces. This difference reflects industry transition toward lead-free manufacturing practices and does not affect electrical or mechanical performance in standard applications.

Packaging Consideration: The substitute part is supplied in bulk packaging, whereas the original part packaging is unspecified. This distinction affects procurement and inventory management but does not impact functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can 3-644613-3 be used as a direct replacement for 644613-3 in existing designs?

A: Yes. The substitute part 3-644613-3 maintains identical electrical and mechanical specifications across all critical parameters including pitch spacing (0.156"), position count (3), mounting type (through-hole right-angle), voltage rating (600VAC), and operating temperature range (-55°C to 105°C). Functional interchangeability is confirmed.

Q: What is the significance of the contact finish change from Tin-Lead to Tin?

A: The contact finish change reflects industry-wide transition to lead-free manufacturing. Both finishes maintain identical thickness (150.0µin / 3.81µm) and provide equivalent electrical conductivity and corrosion resistance. This change does not affect connector performance in standard applications.

Q: Are there any compliance or certification differences between the two parts?

A: Both parts meet UL94 V-0 flammability requirements and maintain RoHS compliance. The original part carries ROHS3 Compliant designation while the substitute carries RoHS Compliant designation. Both satisfy current regulatory requirements for electronic component manufacturing.

Q: What is the difference between ROHS3 Compliant and RoHS Compliant designations?

A: ROHS3 refers to the third iteration of the Restriction of Hazardous Substances directive. RoHS Compliant indicates general compliance with RoHS requirements. Both designations confirm that the parts meet restrictions on hazardous substances and are suitable for modern electronic applications.

Q: Does the bulk packaging of 3-644613-3 affect its technical performance?

A: No. Packaging type affects procurement, storage, and handling procedures but does not influence electrical or mechanical performance. The connector specifications remain identical regardless of packaging format.

Q: Are both parts suitable for industrial applications?

A: Yes. Both parts are specified for general purpose and industrial applications with identical operating temperature ranges (-55°C to 105°C) and voltage ratings (600VAC).

Q: What is the current availability status of each part?

A: The original part 644613-3 is classified as obsolete. The substitute part 3-644613-3 is active with 2,402 pieces currently in stock, providing reliable long-term availability.

Q: Can these connectors be used interchangeably with other MTA-156 series components?

A: Both parts are members of the MTA-156 series and maintain compatibility with other components within this series that share the 0.156" (3.96mm) pitch specification and 3-position configuration.