TE Connectivity AMP Connectors 644897-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 644897-4 is a rectangular connector header designed for through-hole mounting applications. This connector features a vertical 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 service applications.

Substiute Parts

644897-4

TE Connectivity AMP ConnectorsIn Stock: 809644897-4 Datasheet

Current PartRFQ

3-644897-4

TE Connectivity AMP ConnectorsIn Stock: 8773-644897-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 644897-4 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

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

Mechanical Compatibility Parameters:

• Connector type: Header
• Mounting type: Through Hole
• Shrouding configuration: Shrouded - 4 Wall
• Contact shape: Square
• Insulation material: Polyester
• Insulation color: Black

Physical Dimensions:

• Contact length - mating: 0.280" (7.11mm)
• Contact length - post: 0.140" (3.56mm)
• Overall contact length: 0.520" (13.21mm)
• Insulation height: 0.410" (10.41mm)

The substitute part 3-644897-4 maintains complete equivalence across all electrical and mechanical parameters, with the primary distinction being product status transition from obsolete to active and enhanced compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-644897-4 is the direct functional equivalent of the obsolete 644897-4. Both components share identical electrical ratings, mechanical dimensions, and performance characteristics across all critical parameters. The primary distinction is product status: the substitute part is active and carries RoHS Compliant certification with REACH Unaffected status, whereas the original part is obsolete with undefined compliance documentation.

For new designs and ongoing production applications, the 3-644897-4 is the appropriate selection. The contact finish post material differs slightly (Tin versus Tin-Lead), which reflects modern manufacturing standards and does not affect electrical or mechanical compatibility. Both parts maintain identical voltage ratings (250VAC), operating temperature ranges (-55°C ~ 105°C), and flammability ratings (UL94 V-0).

The substitute part is available in bulk packaging with confirmed inventory of 828 pieces, supporting production continuity for applications requiring the CST-100 series 4-position 0.100" pitch rectangular connector header.

Frequently Asked Questions (FAQ)

Q: Can the 3-644897-4 be used as a direct replacement for the 644897-4 in existing designs?

A: Yes. The 3-644897-4 maintains complete electrical and mechanical equivalence with the 644897-4 across all critical parameters including pitch spacing (0.100"), position count (4), voltage rating (250VAC), operating temperature range (-55°C ~ 105°C), and physical dimensions. No design modifications are required.

Q: What is the difference between the contact finish materials (Tin-Lead versus Tin)?

A: The original part uses Tin-Lead post finish, while the substitute uses Tin post finish. Both finishes provide equivalent solderability and electrical performance. The Tin finish reflects current manufacturing standards and RoHS compliance requirements.

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

A: The substitute part 3-644897-4 carries RoHS Compliant certification and REACH Unaffected status, whereas the original part has undefined compliance documentation. Both parts maintain identical UL94 V-0 flammability ratings and Moisture Sensitivity Level 1 (Unlimited) classification.

Q: What packaging formats are available for the substitute part?

A: The 3-644897-4 is supplied in bulk packaging with 828 pieces in current inventory.

Q: Are the physical dimensions identical between both parts?

A: Yes. Both parts share identical contact lengths (mating: 0.280", post: 0.140", overall: 0.520"), insulation height (0.410"), and all other mechanical specifications.

Q: What applications are these connectors suitable for?

A: Both parts are designed for general purpose and lighting applications requiring board-to-cable/wire connections with through-hole mounting.