TE Connectivity AMP Connectors 644749-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 644749-5 is an active rectangular connector header designed for through-hole mounting applications. This unshrouded, vertical 5-position connector operates at 0.156" (3.96mm) pitch and accommodates board-to-cable/wire connections in general purpose and industrial applications. The connector features male pin contacts with tin finish, solder termination, and operates across a temperature range of -55°C to 105°C with a 600VAC voltage rating.

Substitute parts are identified to provide alternative sourcing options when the primary part number becomes unavailable or when design requirements necessitate alternative connector configurations within compatible electrical and mechanical parameters.

Substiute Parts

644749-5

TE Connectivity AMP ConnectorsIn Stock: 1757644749-5 Datasheet

Current PartRFQ

FWJ-05-01-T-S

Samtec Inc.In Stock: 1496FWJ-05-01-T-S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 644749-5 are identified based on strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 5
• Pitch - Mating: 0.156" (3.96mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole
• Termination: Solder
• Operating Temperature Range: -55°C ~ 105°C
• Voltage Rating: 600VAC minimum
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The Samtec Inc. FWJ-05-01-T-S meets all mandatory matching parameters and qualifies as a direct substitute. Both connectors share identical mating pitch, position count, operating temperature range, voltage rating, and compliance certifications. Variations in contact material (Phosphor Bronze versus Copper Alloy), insulation material (PBT versus Glass-Filled Thermoplastic), contact length specifications, and application style (Board to Board versus Board to Cable/Wire) do not preclude substitution when electrical and mechanical compatibility requirements are satisfied.

Parameter Comparison

Engineering Selection Recommendations

Both the TE Connectivity 644749-5 and Samtec FWJ-05-01-T-S connectors maintain active product status and full compliance with ROHS3 and REACH regulations. Selection between these parts is based on availability and application-specific requirements.

The TE Connectivity 644749-5 is specified for board-to-cable/wire connections and features glass-filled thermoplastic insulation with copper alloy contacts. The Samtec FWJ-05-01-T-S is configured for board-to-board applications with PBT insulation and phosphor bronze contacts, and includes push-pull fastening capability with extended voltage rating to 845VDC.

Both connectors share identical mating pitch (0.156"), position count (5), operating temperature range (-55°C to 105°C), and minimum voltage rating (600VAC). The contact post length is identical at 0.175" (4.45mm), ensuring compatible through-hole mounting and solder termination. Differences in mating contact length (0.400" versus 0.450") and overall contact length (0.700" versus 0.750") reflect design variations between manufacturers but do not prevent functional substitution when mechanical clearance permits.

Selection should account for the intended application style (board-to-cable versus board-to-board), fastening requirements, and available board space for the slightly longer overall contact length of the Samtec part.

Frequently Asked Questions (FAQ)

Q: Can the Samtec FWJ-05-01-T-S directly replace the TE Connectivity 644749-5 in all applications?

A: The Samtec FWJ-05-01-T-S qualifies as a substitute based on matching electrical and mechanical parameters including mating pitch, position count, operating temperature, voltage rating, and compliance certifications. However, the Samtec part is designed for board-to-board applications while the TE Connectivity part is specified for board-to-cable/wire connections. Application compatibility depends on the specific circuit board layout and mating connector type in the target application.

Q: What are the key differences between these two connector models?

A: The primary differences are: (1) Application style—TE Connectivity is board-to-cable/wire; Samtec is board-to-board; (2) Contact material—TE Connectivity uses copper alloy; Samtec uses phosphor bronze; (3) Insulation material—TE Connectivity uses glass-filled thermoplastic; Samtec uses PBT; (4) Fastening—Samtec includes push-pull fastening; TE Connectivity does not specify fastening type; (5) Voltage rating—Samtec extends to 845VDC while TE Connectivity is rated to 600VAC; (6) Contact length—Samtec mating contact is 0.050" longer. All other critical parameters including pitch, position count, temperature range, and compliance certifications are identical.

Q: Are both connectors RoHS compliant?

A: Yes. Both the TE Connectivity 644749-5 and Samtec FWJ-05-01-T-S are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

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

A: Both connectors carry a Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly processes.

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

A: Both connectors operate across the identical temperature range of -55°C to 105°C. Selection between them for high-temperature applications should be based on application-specific requirements regarding contact material performance, insulation material thermal stability, and mechanical clearance constraints rather than temperature rating differences.

Q: What is the voltage rating difference between these parts?

A: The TE Connectivity 644749-5 is rated for 600VAC. The Samtec FWJ-05-01-T-S is rated for 600VAC and 845VDC. For applications requiring DC voltage operation above 600V, the Samtec part provides extended voltage capability. For standard AC applications at 600VAC or lower, both parts are equivalent.

Q: Are there any packaging or inventory considerations?

A: Both connectors are supplied in bulk packaging. TE Connectivity 644749-5 has 1701 pieces in stock; Samtec FWJ-05-01-T-S has 1456 pieces in stock. Availability should be confirmed at the time of procurement.