TE Connectivity 1-647401-3 Rectangular Connector Receptacle Housing Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-647401-3 is a 13-position rectangular connector receptacle housing designed for the SL-156 series. This component functions as a female socket housing for crimp-terminated contacts in free-hanging, in-line applications. The part is Active in product status and RoHS Compliant, making it suitable for current production environments. Substitute parts are identified when inventory constraints, lead time requirements, or procurement preferences necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	13
Pitch	0.156" (3.96mm)
Number of Rows	1
Mounting Type	Free Hanging (In-Line)
Contact Termination	Crimp
Fastening Type	Locking Ramp
Insulation Material	Polyamide (PA), Nylon
Operating Temperature Range	-55°C ~ 105°C
Color	Natural
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 1-647401-3 are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

Connector Type and Contact Configuration: Receptacle housing with female socket contacts
Position Count and Pitch: 13 positions at 0.156" (3.96mm) spacing
Mounting and Termination: Free hanging in-line mounting with crimp contact termination
Fastening Mechanism: Locking ramp fastening type
Material and Environmental Specifications: Polyamide nylon insulation, operating temperature range of -55°C to 105°C, and MSL 1 rating
Compliance Standards: RoHS compliance status

The substitute part 1-640250-3 meets all these criteria and is therefore classified as a parametric equivalent within the SL-156 series rectangular connector family.

Parameter Comparison

Parameter	1-647401-3 (Main Part)	1-640250-3 (Substitute)	Match Status
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors	Identical
Category	Rectangular Connectors	Rectangular Connectors	Identical
Series	SL-156	SL-156	Identical
Connector Type	Receptacle	Receptacle	Identical
Contact Type	Female Socket	Female Socket	Identical
Number of Positions	13	13	Identical
Pitch	0.156" (3.96mm)	0.156" (3.96mm)	Identical
Number of Rows	1	1	Identical
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Identical
Contact Termination	Crimp	Crimp	Identical
Fastening Type	Locking Ramp	Locking Ramp	Identical
Color	Natural	Natural	Identical
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Identical
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	Identical
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
RoHS Status	RoHS Compliant	ROHS3 Compliant	Equivalent
Product Status	Active	Active	Identical
Packaging	Bulk	Bulk	Identical

Engineering Selection Recommendations

Both the TE Connectivity 1-647401-3 and 1-640250-3 are Active products suitable for current production applications. The 1-640250-3 substitute part offers higher inventory availability (1505 pieces versus 956 pieces), which may provide procurement advantages in high-volume or time-sensitive applications.

The RoHS compliance difference (RoHS Compliant versus ROHS3 Compliant) indicates that the substitute part meets the more recent ROHS3 standard, which encompasses additional restricted substances. This represents an equivalent or superior compliance posture for applications requiring adherence to current environmental regulations.

Both parts are MSL 1 rated, indicating unlimited moisture sensitivity protection, and both operate across the identical temperature range of -55°C to 105°C. The electrical and mechanical specifications are fully equivalent, confirming direct interchangeability in circuit designs and assemblies.

Frequently Asked Questions (FAQ)

Q: Can the 1-640250-3 be used as a direct replacement for the 1-647401-3 in existing designs?

A: Yes. The 1-640250-3 is a parametric equivalent with identical electrical and mechanical specifications, including connector type, position count, pitch, mounting configuration, and operating temperature range. Direct substitution is supported without design modification.

Q: Are there any differences in contact compatibility between these two parts?

A: No. Both parts are 13-position receptacle housings with female socket contacts designed for crimp termination. They accept identical contact types and configurations within the SL-156 series.

Q: What is the significance of the different RoHS compliance designations?

A: The 1-640250-3 carries ROHS3 compliance, which represents the current iteration of RoHS standards with expanded substance restrictions. This is equivalent to or exceeds RoHS Compliant status and does not create compatibility issues. Both parts are suitable for applications requiring RoHS compliance.

Q: Do these parts require any special handling or storage considerations?

A: Both parts carry MSL 1 (Unlimited) ratings, indicating they do not require moisture-sensitive device handling procedures. Standard component storage practices are appropriate for both parts.

Q: Are contacts included with these housing parts?

A: No. Both the 1-647401-3 and 1-640250-3 are housing-only components. Contacts must be sourced separately and crimped into the housing according to TE Connectivity specifications.

Q: What is the pitch specification and why is it important?

A: Both parts feature a 0.156" (3.96mm) pitch, which defines the center-to-center spacing between contact positions. This specification is critical for mechanical alignment and must match the mating connector and PCB layout.

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