Molex 0050579321 Rectangular Connector Receptacle Housing - Equivalent & Substitute Parts

Part Overview

The Molex 0050579321 is a 21-position rectangular connector receptacle housing with 0.100" (2.54mm) pitch, designed for free-hanging in-line applications. This component features crimp-type termination and operates across -40°C to 105°C. The part is Active status and RoHS3 compliant, making it suitable for applications requiring standard rectangular connector housings in bulk packaging. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, ensuring functional interchangeability in target applications.

Substiute Parts

0050579321

MolexIn Stock: 8560050579321 Datasheet

Current PartRFQ

4-87499-0

TE Connectivity AMP ConnectorsIn Stock: 8744-87499-0 Datasheet

MFR RecommendedRFQ

65039-016LF

Amphenol ICC (FCI)In Stock: 98165039-016LF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Molex 0050579321 are qualified based on the following critical parameters:

• Connector Type: Receptacle housing
• Position Count: 21 positions
• Pitch Specification: 0.100" (2.54mm)
• Row Configuration: Single row
• Mounting Configuration: Free hanging in-line
• Termination Method: Crimp
• Color: Black
• Moisture Sensitivity Level: 1 (Unlimited)

The identified substitutes maintain these core electrical and mechanical specifications, ensuring direct functional equivalence in applications designed for the original part number.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status and meet RoHS compliance requirements. The Molex 0050579321 and Amphenol ICC 65039-016LF share identical operating temperature ranges (-40°C ~ 105°C), while the TE Connectivity 4-87499-0 extends the lower temperature limit to -65°C. Selection between these substitutes depends on application-specific temperature requirements and supply chain availability. All parts are available in bulk packaging with current inventory levels exceeding 750 units.

Frequently Asked Questions (FAQ)

Q: What makes these parts functionally equivalent to the Molex 0050579321?

A: All substitute parts share the critical specifications: 21-position receptacle housing, 0.100" (2.54mm) pitch, single-row configuration, free-hanging in-line mounting, crimp termination, black color, and MSL 1 rating. These parameters define the mechanical and electrical interface compatibility.

Q: Can the TE Connectivity 4-87499-0 be used in applications requiring -40°C minimum operating temperature?

A: Yes. The TE Connectivity 4-87499-0 operates from -65°C to 105°C, which encompasses the -40°C to 105°C range of the original Molex part.

Q: Are there differences in insulation material between these parts?

A: Yes. The Molex 0050579321 uses polyester glass-filled insulation, the TE Connectivity 4-87499-0 uses thermoplastic, and the Amphenol ICC 65039-016LF uses modified polyphenylene. These material differences do not affect functional equivalence for the specified electrical and mechanical parameters.

Q: Do all substitute parts require the same contact specifications?

A: Yes. All parts are receptacle housings designed for crimp-type contacts. Contact compatibility is determined by the 0.100" (2.54mm) pitch specification common to all three parts.

Q: What is the significance of the MSL 1 rating across all parts?

A: MSL 1 (Unlimited) indicates these components have no moisture sensitivity limitations and require no special storage or handling conditions prior to assembly.