TE Connectivity 1-647401-4 Rectangular Connector Receptacle Housing Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-647401-4 is a 14-position rectangular connector receptacle housing designed for the SL-156 series. This component functions as a female socket housing for crimp-terminated contacts with a 0.156" (3.96mm) pitch configuration. The part is classified as Active product status with full RoHS compliance and MSL Level 1 rating, indicating unlimited moisture sensitivity tolerance. Substitute parts are identified when inventory constraints, lead time requirements, or supply chain considerations necessitate alternative sourcing while maintaining full electrical and mechanical compatibility.

Substiute Parts

1-647401-4

TE Connectivity AMP ConnectorsIn Stock: 10521-647401-4 Datasheet

Current PartRFQ

1-640250-4

TE Connectivity AMP ConnectorsIn Stock: 111591-640250-4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for rectangular connector receptacle housings is determined by strict equivalence across all critical electrical and mechanical parameters. The 1-647401-4 and its identified substitute share identical specifications across the following key criteria:

• Connector Configuration: Both are single-row, 14-position receptacle housings
• Contact Interface: Female socket design with crimp termination
• Pitch Specification: 0.156" (3.96mm) center-to-center spacing
• Mechanical Mounting: Free hanging in-line configuration with locking ramp fastening
• Material Composition: Polyamide (PA) nylon insulation housing
• Environmental Rating: Identical operating temperature range of -55°C to 105°C
• Regulatory Compliance: Both parts maintain RoHS compliance and MSL Level 1 classification

These parameters establish the substitution basis. Parts meeting all these criteria are classified as parametric equivalents and are electrically and mechanically interchangeable within the SL-156 series connector family.

Parameter Comparison

Engineering Selection Recommendations

Both the 1-647401-4 and 1-640250-4 are Active product status components manufactured by TE Connectivity AMP Connectors within the SL-156 series. Selection between these parts is based on availability and supply chain considerations rather than technical differentiation.

1-647401-4 is suitable for applications where this specific part number is designated in design documentation or where existing inventory is available (1041 pieces in stock).

1-640250-4 serves as a direct parametric equivalent with higher inventory availability (11100 pieces in stock), making it the preferred selection when lead time optimization or bulk procurement is required.

Both parts carry identical RoHS compliance certification, MSL Level 1 rating, and ECCN EAR99 classification. No technical performance differences exist between these components. Selection should be based on procurement timeline, inventory status, and supply chain logistics.

Frequently Asked Questions (FAQ)

Q: Are the 1-647401-4 and 1-640250-4 fully interchangeable?

A: Yes. Both parts are parametric equivalents with identical electrical and mechanical specifications. They share the same 14-position, 0.156" pitch configuration, female socket contact design, crimp termination method, and operating temperature range. Direct substitution is supported without design modification.

Q: What determines substitution eligibility for SL-156 series rectangular connectors?

A: Substitution is based on exact equivalence across connector type (receptacle), contact type (female socket), number of positions (14), pitch (0.156"), row configuration (single row), mounting style (free hanging in-line), termination method (crimp), fastening mechanism (locking ramp), insulation material (polyamide nylon), and operating temperature range (-55°C to 105°C).

Q: Are contacts included with these receptacle housings?

A: No. Both the 1-647401-4 and 1-640250-4 are housings only. Crimp-terminated contacts must be sourced separately and inserted into the housing.

Q: Do these parts require special handling or storage conditions?

A: Both parts carry MSL Level 1 classification, indicating unlimited moisture sensitivity tolerance. Standard component storage practices apply without specialized moisture control requirements.

Q: What is the difference between the base product numbers 647401 and 640250?

A: The base product numbers identify distinct manufacturing part numbers within the TE Connectivity catalog. Despite different base numbers, both parts are classified as parametric equivalents for the SL-156 series 14-position receptacle housing configuration.

Q: Are both parts RoHS compliant?

A: Yes. Both the 1-647401-4 and 1-640250-4 carry full RoHS compliance certification and are suitable for applications requiring restricted substance compliance.