TE Connectivity AMP Connectors 3-644764-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-644764-5 is a rectangular connector header designed for through-hole mounting applications. This connector features a 5-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 is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain functional compatibility within the MTA-156 series specifications and broader rectangular connector category standards.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 3-644764-5 is determined by strict adherence to the following critical parameters:

Primary Compatibility Criteria:

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 minimum
Material Flammability Rating: UL94 V-0
RoHS Status: ROHS3 Compliant

Secondary Compatibility Considerations:

Voltage Rating: 600VAC or higher
Insulation Material: Thermoplastic, Polybutylene Terephthalate (PBT), or Liquid Crystal Polymer (LCP)
Contact Material: Copper Alloy or Phosphor Bronze
Shrouding: Unshrouded
Number of Rows: 1

Substitute parts from Samtec Inc. (FWJ series, HFWJ series, and JW series) meet these criteria with variations in contact length, contact finish, insulation material, and fastening mechanisms. These variations do not preclude functional substitution when application requirements align with the specified parameters.

Parameter Comparison

Parameter	3-644764-5 (TE Connectivity)	FWJ-05-01-T-S (Samtec)	FWJ-05-02-T-S (Samtec)	HFWJ-05-01-T-S (Samtec)	HFWJ-05-02-T-S (Samtec)	JW-05-04-T-S-460-140 (Samtec)
Connector Type	Header	Header	Header	Header	Header	Header Spacer
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	5	5	5	5	5	5
Pitch - Mating	0.156" (3.96mm)	0.156" (3.96mm)	0.156" (3.96mm)	0.156" (3.96mm)	0.156" (3.96mm)	0.156" (3.96mm)
Number of Rows	1	1	1	1	1	1
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	Not specified
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	Not specified
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not specified	Not specified	Not specified
Contact Length - Mating	0.400" (10.16mm)	0.450" (11.43mm)	0.500" (12.70mm)	0.450" (11.43mm)	0.500" (12.70mm)	0.140" (3.556mm) Post
Contact Length - Post	0.175" (4.45mm)	0.175" (4.45mm)	0.175" (4.45mm)	0.175" (4.45mm)	0.175" (4.45mm)	0.140" (3.556mm)
Overall Contact Length	0.700" (17.78mm)	0.750" (19.05mm)	0.800" (20.32mm)	0.750" (19.05mm)	0.800" (20.32mm)	0.690" (17.526mm)
Insulation Height	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	Not specified
Contact Shape	Circular	Square	Square	Square	Square	Not specified
Contact Finish - Mating	Gold	Tin	Tin	Tin	Tin	Tin
Contact Material	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Not specified
Insulation Material	Thermoplastic	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Not specified
Voltage Rating	600VAC	600VAC, 845VDC	600VAC, 845VDC	Not specified	Not specified	Not specified
Product Status	Obsolete	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

The Samtec FWJ-05-01-T-S and FWJ-05-02-T-S connectors provide direct functional equivalence to the TE Connectivity 3-644764-5. Both parts maintain all critical parameters including 5-position configuration, 0.156" (3.96mm) pitch, through-hole solder termination, -55°C to 105°C operating temperature range, UL94 V-0 flammability rating, and ROHS3 compliance. The FWJ series features enhanced voltage ratings (600VAC, 845VDC) compared to the original specification. Contact length variations (0.450" and 0.500" mating lengths) accommodate different application geometries while maintaining electrical and mechanical compatibility. Both parts are currently in active production status with substantial inventory availability.

Secondary Substitutes (High Compatibility with Material Upgrades):

The Samtec HFWJ-05-01-T-S and HFWJ-05-02-T-S connectors offer equivalent functionality with upgraded insulation material (Liquid Crystal Polymer) providing enhanced thermal and chemical resistance. These parts maintain the same pitch, position count, mounting type, and termination method as the original component. The HFWJ series specifies a current rating of 6.7A per contact, providing additional performance data not available for the original part. Contact length options (0.450" and 0.500") allow application-specific selection. Both HFWJ variants are active production parts with ROHS3 compliance.

Specialized Substitutes (Flex Stack Configuration):

The Samtec JW series (JW-05-04-T-S-460-140 and related variants) represents a specialized connector family with flexible stacking capability. These parts maintain the 5-position, 0.156" (3.96mm) pitch configuration and through-hole solder termination. The JW series accommodates variable stack heights through multiple part number variants (390, 430, 440, 450, 460 designations indicating stack height in thousandths of an inch). This family is suitable for applications requiring flexible interconnection or multi-level board stacking. All JW variants are active production parts with ROHS3 compliance.

Selection Criteria:

For direct replacement in existing designs: Select FWJ-05-01-T-S or FWJ-05-02-T-S based on required mating contact length.
For enhanced thermal performance: Select HFWJ-05-01-T-S or HFWJ-05-02-T-S.
For flexible stacking applications: Select appropriate JW-05-04-T-S variant based on required stack height.

All recommended substitutes are active production components with current inventory availability and full compliance with applicable regulatory standards.

Frequently Asked Questions (FAQ)

Q: Can the Samtec FWJ-05-01-T-S directly replace the TE Connectivity 3-644764-5 in existing applications?

A: The FWJ-05-01-T-S maintains compatibility across all critical parameters: 5-position configuration, 0.156" (3.96mm) pitch, through-hole solder termination, -55°C to 105°C operating temperature, UL94 V-0 flammability rating, and ROHS3 compliance. The primary differences are contact finish (tin versus gold), contact material (phosphor bronze versus copper alloy), and insulation material (PBT versus thermoplastic). These differences do not preclude functional substitution in general purpose and industrial applications. Application-specific requirements must be evaluated for contact finish and material compatibility.

Q: What is the difference between the FWJ and HFWJ series connectors?

A: Both series maintain identical electrical and mechanical specifications including pitch, position count, mounting type, and termination method. The primary distinction is insulation material: FWJ series uses Polybutylene Terephthalate (PBT), while HFWJ series uses Liquid Crystal Polymer (LCP). LCP provides superior thermal stability and chemical resistance, making HFWJ variants suitable for elevated temperature or chemically aggressive environments. The HFWJ series also specifies a current rating of 6.7A per contact.

Q: How do contact length variations affect substitution compatibility?

A: The original TE Connectivity 3-644764-5 specifies 0.400" (10.16mm) mating contact length. Samtec FWJ and HFWJ substitutes are available with 0.450" (11.43mm) or 0.500" (12.70mm) mating contact lengths. Longer contact lengths accommodate thicker mating surfaces or provide increased engagement depth. Selection must account for the specific application geometry and mating connector specifications. Shorter contact lengths are not available in the recommended substitute families.

Q: What is the purpose of the JW series stack height designations?

A: The JW series part numbers include stack height specifications (390, 430, 440, 450, 460) representing the distance in thousandths of an inch between the connector base and the mating surface. These variants enable flexible stacking of multiple connector levels on a single printed circuit board. Selection of the appropriate stack height variant depends on the specific multi-level interconnection requirements of the application.

Q: Are all recommended substitutes RoHS3 compliant?

A: All recommended substitute parts (FWJ, HFWJ, and JW series) are certified ROHS3 compliant. The original TE Connectivity 3-644764-5 is also ROHS3 compliant. This compliance status is maintained across all substitute options.

Q: What voltage ratings apply to the substitute connectors?

A: The original TE Connectivity 3-644764-5 specifies 600VAC. The Samtec FWJ and HFWJ series specify 600VAC and 845VDC, providing enhanced voltage capability. The JW series does not specify voltage ratings in the available documentation. Application voltage requirements must be verified against the specific substitute part selected.

Q: How does contact finish affect connector performance?

A: The original part specifies gold-plated mating contacts (15.0µin thickness) with tin-plated posts. Samtec substitutes specify tin-plated mating contacts and posts. Gold plating provides superior corrosion resistance and lower contact resistance, particularly in low-signal applications. Tin plating is suitable for general purpose and industrial applications with adequate contact pressure. Contact finish selection depends on application environment and signal integrity requirements.

Q: What is the Moisture Sensitivity Level (MSL) for the substitute parts?

A: The TE Connectivity 3-644764-5 specifies MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. The Samtec FWJ series specifies MSL 1 (Unlimited). The HFWJ and JW series do not specify MSL ratings in the available documentation. MSL 1 classification indicates the component can be stored and handled without moisture control measures.

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