TE Connectivity AMP Connectors 644894-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 644894-4 is a rectangular connector header designed for through-hole, right-angle mounting applications. This connector features a 4-position configuration with 0.100" (2.54mm) pitch spacing, suitable for board-to-cable/wire connections in general purpose and lighting applications. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure ongoing component availability for production and repair operations.

Substiute Parts

644894-4

TE Connectivity AMP ConnectorsIn Stock: 1000644894-4 Datasheet

Current PartRFQ

3-644894-4

TE Connectivity AMP ConnectorsIn Stock: 11463-644894-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 644894-4 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Pitch spacing: 0.100" (2.54mm)
• Number of positions: 4
• Contact type: Male Pin
• Voltage rating: 250VAC
• Operating temperature range: -55°C ~ 105°C

Mechanical Compatibility Parameters:

• Connector type: Header
• Mounting type: Through Hole, Right Angle
• Termination method: Solder
• Shrouding configuration: Shrouded - 4 Wall
• Contact shape: Square
• Insulation material: Polyester
• Insulation height: 0.313" (7.95mm)
• Contact length - mating: 0.280" (7.11mm)
• Contact length - post: 0.130" (3.30mm)

Compliance Parameters:

• Material flammability rating: UL94 V-0
• Moisture sensitivity level: 1 (Unlimited)

The substitute part 3-644894-4 maintains full equivalence across all critical electrical and mechanical parameters while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-644894-4 is a direct functional equivalent to the obsolete 644894-4 and is suitable for replacement in all applications where the original part was specified.

Basis for Substitution:

1. Electrical Equivalence: Both parts maintain identical electrical characteristics including 250VAC voltage rating, 0.100" (2.54mm) pitch spacing, and -55°C to 105°C operating temperature range.

2. Mechanical Equivalence: All mechanical dimensions, mounting configurations, and contact geometries are identical between the main part and substitute.

3. Product Status Advantage: The substitute part 3-644894-4 carries Active product status, ensuring continued availability and manufacturing support, whereas the main part 644894-4 is classified as Obsolete.

4. Compliance Enhancement: The substitute part carries ROHS3 Compliant certification and defined REACH Unaffected status, compared to the main part's undefined compliance status. This provides superior regulatory documentation for modern manufacturing environments.

5. Contact Finish Compatibility: The substitute employs Tin finish (lead-free) in place of Tin-Lead finish on both mating and post contacts. Tin finish is a recognized lead-free alternative that maintains electrical and mechanical performance equivalence while supporting environmental compliance requirements.

6. Inventory Availability: The substitute part demonstrates higher inventory levels (1110 Pcs versus 902 Pcs), supporting consistent supply chain access.

Frequently Asked Questions (FAQ)

Q: Can 3-644894-4 be used as a direct replacement for 644894-4 in existing designs?

A: Yes. The 3-644894-4 is a direct functional equivalent with identical electrical and mechanical specifications. All dimensional, pitch, position count, and performance parameters are equivalent. The substitute is suitable for direct replacement in all applications where 644894-4 was originally specified.

Q: What is the difference between the Tin-Lead finish on 644894-4 and the Tin finish on 3-644894-4?

A: The main part uses Tin-Lead contact finish, while the substitute uses Tin (lead-free) finish. Tin is a recognized lead-free alternative that maintains equivalent electrical conductivity and mechanical performance. This change reflects modern environmental compliance standards and does not affect functional compatibility.

Q: Why is 644894-4 listed as Obsolete?

A: The 644894-4 is classified as Obsolete by the manufacturer. The active equivalent 3-644894-4 is available for new designs and replacement applications, ensuring continued access to this connector configuration.

Q: Are there any packaging differences between these parts?

A: The main part 644894-4 has unspecified packaging, while the substitute 3-644894-4 is available in Bulk packaging. Both parts are identical in form, fit, and function; packaging differences do not affect electrical or mechanical performance.

Q: What compliance certifications does the substitute part carry?

A: The substitute part 3-644894-4 carries ROHS3 Compliant certification and REACH Unaffected status. Both parts maintain UL94 V-0 material flammability rating and EAR99 export classification. The substitute offers enhanced regulatory documentation compared to the main part.

Q: Are the operating temperature ranges identical?

A: Yes. Both 644894-4 and 3-644894-4 operate across the identical temperature range of -55°C to 105°C, ensuring thermal performance equivalence across all environmental conditions.

Q: Can these connectors be used interchangeably in lighting applications?

A: Yes. Both parts are rated for General Purpose and Lighting applications with identical 250VAC voltage ratings and UL94 V-0 flammability certification, supporting direct interchangeability in these application categories.

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

A: Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or use.