TE Connectivity AMP Connectors 3-644764-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-644764-2 is a rectangular connector header designed for through-hole mounting applications. This connector features a 2-position configuration with 0.156" (3.96mm) pitch spacing, suitable for board-to-cable and board-to-board interconnections in general purpose and industrial applications. The part carries an obsolete product status, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing design support and procurement requirements.

Substiute Parts

3-644764-2

TE Connectivity AMP ConnectorsIn Stock: 12433-644764-2 Datasheet

Current PartRFQ

FWJ-02-01-T-S

Samtec Inc.In Stock: 1798FWJ-02-01-T-S Datasheet

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FWJ-02-02-T-S

Samtec Inc.In Stock: 1145FWJ-02-02-T-S Datasheet

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JW-02-04-T-S-300-250

Samtec Inc.In Stock: 891JW-02-04-T-S-300-250 Datasheet

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JW-02-04-T-S-490-140

Samtec Inc.In Stock: 948JW-02-04-T-S-490-140 Datasheet

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JW-02-04-T-S-500-140

Samtec Inc.In Stock: 1199JW-02-04-T-S-500-140 Datasheet

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JW-02-04-T-S-510-140

Samtec Inc.In Stock: 1058JW-02-04-T-S-510-140 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3-644764-2 are identified based on strict alignment with the following critical parameters:

Primary Compatibility Criteria:

• Number of Positions: 2
• Pitch - Mating: 0.156" (3.96mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole
• Termination: Solder
• Operating Temperature Range: -55°C to 105°C
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories based on connector architecture:

Category 1: Standard Header Connectors (FWJ Series) Parts FWJ-02-01-T-S and FWJ-02-02-T-S maintain the core header configuration with board-to-board connectivity. These parts feature identical pitch, position count, and operating parameters. Variations in contact length and overall connector height accommodate different application stack heights.

Category 2: Flex Stack Power Connectors (JW Series) Parts JW-02-04-T-S-300-250, JW-02-04-T-S-490-140, JW-02-04-T-S-500-140, and JW-02-04-T-S-510-140 provide flexible stacking configurations with variable stack heights. These connectors maintain the 2-position, 0.156" pitch specification and through-hole solder termination while offering adjustable mating post lengths and stack heights for applications requiring vertical spacing flexibility.

All substitute parts maintain ROHS3 compliance, UL94 V-0 flammability rating, and -55°C to 105°C operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

For Active Product Status Requirement: All substitute parts (FWJ-02-01-T-S, FWJ-02-02-T-S, JW-02-04-T-S-300-250, JW-02-04-T-S-490-140, JW-02-04-T-S-500-140, JW-02-04-T-S-510-140) carry active product status from Samtec Inc., providing ongoing manufacturing support and supply chain availability compared to the obsolete 3-644764-2.

For Standard Header Applications: FWJ-02-01-T-S and FWJ-02-02-T-S are direct functional equivalents for applications requiring standard header connector geometry. Both parts maintain the 2-position, 0.156" pitch configuration with through-hole solder termination. FWJ-02-01-T-S provides a contact length of 0.450" (11.43mm) with overall connector height of 0.750" (19.05mm), while FWJ-02-02-T-S offers extended contact length of 0.500" (12.70mm) with overall height of 0.800" (20.32mm). Selection between these variants depends on required mating depth and available PCB stack space.

For Flexible Stacking Applications: The JW series connectors (JW-02-04-T-S-300-250, JW-02-04-T-S-490-140, JW-02-04-T-S-500-140, JW-02-04-T-S-510-140) accommodate applications requiring adjustable vertical spacing. These parts feature variable stack heights ranging from 0.300" (7.620mm) to 0.510" (12.954mm) with corresponding mating post lengths. Selection among JW variants is determined by required stack height and mating post length specifications for the target application.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and UL94 V-0 flammability rating, ensuring regulatory alignment with the original 3-644764-2 specification. FWJ series parts provide enhanced voltage rating specifications (600VAC, 845VDC) compared to the main part (600VAC only).

Frequently Asked Questions (FAQ)

Q: Can FWJ-02-01-T-S and FWJ-02-02-T-S be used interchangeably with the 3-644764-2?

A: Both FWJ parts maintain the critical compatibility parameters: 2-position configuration, 0.156" (3.96mm) pitch, male pin contact type, through-hole solder termination, and -55°C to 105°C operating temperature range. Selection between FWJ-02-01-T-S and FWJ-02-02-T-S depends on the specific mating contact length and overall connector height required by the application. The primary difference is contact length: FWJ-02-01-T-S provides 0.450" (11.43mm) mating contact length, while FWJ-02-02-T-S provides 0.500" (12.70mm).

Q: What is the difference between FWJ series and JW series substitutes?

A: FWJ series connectors (FWJ-02-01-T-S, FWJ-02-02-T-S) are standard header connectors with fixed geometry suitable for direct board-to-board connections. JW series connectors (JW-02-04-T-S-300-250, JW-02-04-T-S-490-140, JW-02-04-T-S-500-140, JW-02-04-T-S-510-140) are flex stack power connectors with adjustable stack heights and variable mating post lengths, designed for applications requiring flexible vertical spacing between mated components.

Q: How do I select the correct JW series variant?

A: JW series selection is determined by two parameters: stack height and mating post length. JW-02-04-T-S-300-250 provides 0.300" (7.620mm) stack height with 0.250" (6.350mm) mating post length. JW-02-04-T-S-490-140, JW-02-04-T-S-500-140, and JW-02-04-T-S-510-140 all provide 0.140" (3.556mm) mating post length with stack heights of 0.490" (12.446mm), 0.500" (12.700mm), and 0.510" (12.954mm) respectively. Choose the variant matching your application's required vertical spacing and contact engagement depth.

Q: Are there differences in contact finish between the main part and substitutes?

A: Yes. The 3-644764-2 features gold-plated mating contacts with copper alloy material. FWJ series substitutes feature tin-plated mating contacts with phosphor bronze material. JW series substitutes feature tin-plated mating contacts. These material and finish differences do not affect electrical compatibility for standard applications but may influence contact resistance characteristics and environmental corrosion resistance in specific operating conditions.

Q: Do all substitute parts meet the same compliance standards as the original part?

A: All substitute parts maintain ROHS3 compliance and UL94 V-0 flammability rating. FWJ series parts provide documented voltage ratings of 600VAC and 845VDC, exceeding the original part's 600VAC specification. Operating temperature range for FWJ series is -55°C to 105°C, matching the original part. JW series parts carry ROHS3 compliance but do not provide detailed voltage rating or temperature range specifications in the available documentation.

Q: What is the inventory status for substitute parts?

A: FWJ-02-01-T-S maintains 1,757 pieces in stock. FWJ-02-02-T-S maintains 1,117 pieces in stock. JW-02-04-T-S-300-250 maintains 877 pieces in stock. JW-02-04-T-S-490-140 maintains 921 pieces in stock. JW-02-04-T-S-500-140 maintains 1,150 pieces in stock. JW-02-04-T-S-510-140 maintains 986 pieces in stock. All substitute parts are available as new original stock.

Q: Can the 3-644764-2 be directly replaced in existing designs without modification?

A: FWJ-02-01-T-S and FWJ-02-02-T-S provide direct functional replacement for standard header applications with identical pitch and position count. Physical dimensions differ slightly, requiring verification of available PCB mounting space and mating component clearance. JW series connectors require design consideration for stack height and mating post length compatibility with the target application. Mechanical fit verification is necessary before implementation.