TE Connectivity AMP Connectors 647172-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 647172-1 is a rectangular connector header designed for through-hole mounting applications. This connector features a vertical orientation with 20 positions at 0.156" (3.96mm) pitch, shrouded design with single wall protection, and solder termination. The part operates across a temperature range of -55°C to 105°C and is rated for 600VAC applications in general purpose and industrial environments.

The 647172-1 carries an obsolete product status. Identifying equivalent and substitute parts ensures design continuity and maintains supply chain reliability for applications currently utilizing this connector.

Key Parameters

Parameter	Specification
Connector Type	Header
Contact Type	Male Pin
Number of Positions	20
Pitch - Mating	0.156" (3.96mm)
Mounting Type	Through Hole
Termination	Solder
Shrouding	Shrouded - 1 Wall
Operating Temperature	-55°C ~ 105°C
Voltage Rating	600VAC
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the 647172-1 is determined by the following critical parameters that must remain consistent:

Core Compatibility Parameters:

Connector Type: Header
Contact Type: Male Pin
Number of Positions: 20
Pitch - Mating: 0.156" (3.96mm)
Mounting Type: Through Hole
Termination: Solder
Material Flammability Rating: UL94 V-0
RoHS Status: ROHS3 Compliant

Secondary Consideration Parameters:

Shrouding configuration (affects mechanical fit and EMI protection)
Contact finish material (affects electrical performance and corrosion resistance)
Contact length specifications (affects mating depth and connector stack height)
Fastening type (affects connector retention method)

The substitute parts listed below maintain the core compatibility parameters while offering variations in shrouding, contact finish, and contact length specifications. All substitute parts are manufactured by Molex and carry active product status with confirmed inventory availability.

Parameter Comparison

Parameter	647172-1 (TE Connectivity)	0026481201 (Molex)	0026482201 (Molex)	0026482203 (Molex)	0026485201 (Molex)	0416610019 (Molex)
Connector Type	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	20	20	20	20	20	20
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
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Shrouding	Shrouded - 1 Wall	Unshrouded	Unshrouded	Shrouded - 1 Wall	Unshrouded	Unshrouded
Fastening Type	Friction Lock	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.400" (10.16mm)	0.450" (11.43mm)	0.450" (11.43mm)	0.450" (11.43mm)	0.500" (12.70mm)	0.450" (11.43mm)
Contact Length - Post	0.125" (3.18mm)	0.172" (4.37mm)	0.172" (4.37mm)	0.172" (4.37mm)	0.172" (4.37mm)	0.172" (4.37mm)
Overall Contact Length	0.650" (16.51mm)	0.750" (19.05mm)	0.750" (19.05mm)	0.750" (19.05mm)	0.820" (20.83mm)	0.750" (19.05mm)
Insulation Height	0.425" (10.80mm)	0.128" (3.25mm)	0.128" (3.25mm)	0.360" (9.14mm)	0.128" (3.25mm)	0.128" (3.25mm)
Contact Shape	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Tin	Tin	Gold	Gold	Gold	Gold
Contact Material	Copper Alloy	Brass	Brass	Brass	Brass	Brass
Insulation Material	Thermoplastic, Glass Filled	Polyester, Glass Filled	Polyester, Glass Filled	Polyester, Glass Filled	Polyester, Glass Filled	Polyester, Glass Filled
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitute: Molex 0026482203

The Molex 0026482203 provides the closest functional equivalence to the 647172-1. This part maintains shrouded configuration with single wall protection, matching the mechanical form factor of the original design. The part carries active product status with confirmed inventory of 1023 units. All compliance certifications align with the original specification: UL94 V-0 flammability rating and ROHS3 compliance.

Alternative Substitutes for Unshrouded Applications: Molex 0026481201, 0026482201, 0026485201, 0416610019

These Molex alternatives provide equivalent electrical and mechanical performance for applications where unshrouded configuration is acceptable. All parts maintain the 20-position, 0.156" pitch header format with through-hole solder termination. These options carry active product status with inventory availability ranging from 1121 to 1151 units.

Key Differences Requiring Design Review:

Shrouding: The 0026482203 maintains shrouded design. All other substitutes feature unshrouded configuration, affecting EMI performance and mechanical protection.
Contact Length: Substitute parts feature longer mating contact lengths (0.450" to 0.500") compared to the original 0.400", resulting in increased overall connector stack height.
Insulation Height: Substitute parts show reduced insulation height except for the 0026482203, which approaches the original specification at 0.360".
Contact Finish: Substitute parts offer gold-plated mating contacts versus the original tin finish, providing enhanced corrosion resistance.
Fastening Type: Substitute parts employ push-pull fastening versus the original friction lock mechanism.

All substitute parts maintain compliance with RoHS3 requirements and UL94 V-0 flammability standards. Moisture sensitivity level remains at MSL 1 (Unlimited) across all options.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0026482203 directly replace the TE Connectivity 647172-1 in existing designs?

A: The Molex 0026482203 maintains electrical and mechanical compatibility through matching pitch (0.156"), position count (20), mounting type (through-hole), and termination method (solder). The shrouded configuration aligns with the original design. However, the increased contact length (0.450" versus 0.400") and reduced insulation height (0.360" versus 0.425") require verification against PCB layout and mating connector specifications.

Q: What is the primary difference between the shrouded 0026482203 and the unshrouded alternatives?

A: The 0026482203 features single-wall shrouding identical to the original 647172-1, providing mechanical protection and EMI shielding. The unshrouded alternatives (0026481201, 0026482201, 0026485201, 0416610019) eliminate this protection, reducing overall connector height and cost. Unshrouded designs require careful PCB layout to prevent accidental contact with adjacent circuitry.

Q: How do the contact finish differences affect connector performance?

A: The original 647172-1 uses tin-plated mating contacts. All Molex substitutes employ gold plating on mating contacts, providing superior corrosion resistance and lower contact resistance. Gold-plated contacts are suitable for all applications where tin-plated contacts were previously used and offer enhanced reliability in corrosive environments.

Q: Are there compatibility concerns with the fastening type change from friction lock to push-pull?

A: The fastening mechanism change from friction lock to push-pull affects mating connector selection. Existing mating connectors designed for friction lock fastening will not function with push-pull equipped headers. Mating connector compatibility must be verified before substitution.

Q: What inventory considerations apply to these substitute parts?

A: All Molex substitute parts carry active product status with confirmed new original inventory: 0026481201 (1151 units), 0026482201 (1069 units), 0026482203 (1023 units), 0026485201 (1121 units), and 0416610019 (1148 units). The original 647172-1 shows 787 units in stock but carries obsolete status, indicating no future production.

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

A: All substitute parts maintain ROHS3 compliance and UL94 V-0 flammability rating. Moisture sensitivity level remains MSL 1 (Unlimited) across all options. REACH status for Molex parts is listed as REACH Unaffected, confirming regulatory compliance for European applications.

Q: Which substitute part offers the longest mating contact length?

A: The Molex 0026485201 provides the longest mating contact length at 0.500" (12.70mm), compared to 0.450" for most alternatives and 0.400" for the original. Extended contact length increases connector stack height and may affect PCB clearance in space-constrained applications.

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