Equivalent & Substitute Parts for Molex 0050578909

Part Overview

The Molex 0050578909 is a 9-position rectangular connector housing designed for 0.100" (2.54mm) pitch applications. This receptacle connector features a female socket contact configuration with crimp termination and latch lock fastening. The part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing procurement and design continuity. Substitute parts must maintain identical electrical and mechanical specifications to ensure direct interchangeability in existing applications.

Key Parameters

Parameter	Specification
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	9
Pitch	0.100" (2.54mm)
Number of Rows	1
Mounting Type	Free Hanging (In-Line)
Contact Termination	Crimp
Fastening Type	Latch Lock
Color	Black

Substitute Part Grouping Explanation

Substitute parts for the Molex 0050578909 are qualified based on the following critical parameters:

Connector Type & Contact Configuration: Receptacle with female socket contacts
Position Count & Pitch: 9 positions at 0.100" (2.54mm) spacing
Mounting & Termination: Free hanging in-line mounting with crimp contact termination
Mechanical Interface: Latch lock fastening mechanism and black housing color

The identified substitutes maintain these core specifications, enabling direct replacement in applications requiring 9-position, 2.54mm pitch rectangular connectors with crimp termination.

Parameter Comparison

Parameter	Molex 0050578909	Molex 0050579409	TE Connectivity 104257-8
Manufacturer	Molex	Molex	TE Connectivity AMP Connectors
Connector Type	Receptacle	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket	Female Socket
Number of Positions	9	9	9
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	1	1	1
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Contact Termination	Crimp	Crimp	Crimp
Fastening Type	Latch Lock	Latch Lock	Latch Lock
Color	Black	Black	Black
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Molex 0050579409 is the manufacturer-recommended substitute. This part maintains identical mechanical and electrical specifications to the obsolete 0050578909 while offering active product status and improved availability. Both parts share the same series designation (SL 70066), base product number (005057), and compliance certifications (ROHS3, REACH Unaffected). The 0050579409 is available in bulk packaging with significantly higher inventory levels.

TE Connectivity 104257-8 serves as a parametric equivalent from an alternative manufacturer. This part matches all critical functional parameters including connector type, position count, pitch, mounting configuration, and termination method. The AMPMODU MTE series housing is mechanically and electrically compatible with the original specification. The TE Connectivity part features thermoplastic insulation material and an extended operating temperature range (-65°C to 105°C) compared to the Molex alternatives. RoHS compliance is confirmed, though REACH status is vendor-undefined.

Selection between the two active substitutes depends on supply chain requirements, preferred manufacturer relationships, and specific application temperature demands.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0050579409 directly replace the obsolete 0050578909?

A: Yes. Both parts share identical specifications for connector type, position count, pitch, mounting method, contact termination, and fastening mechanism. The 0050579409 is the active production equivalent.

Q: What are the differences between the Molex 0050579409 and TE Connectivity 104257-8?

A: Both parts are functionally equivalent for the core connector specifications. Differences include insulation material (polyester glass-filled vs. thermoplastic), operating temperature range (-40°C to 105°C vs. -65°C to 105°C), and RoHS certification status (ROHS3 vs. RoHS Compliant). The TE part offers extended low-temperature performance.

Q: Are contacts included with these connector housings?

A: No. All three parts are housings only. Contacts must be sourced separately and crimped into the housing.

Q: What packaging options are available for the substitute parts?

A: The Molex 0050579409 is available in bulk packaging. The TE Connectivity 104257-8 is also available in bulk packaging. Verify specific packaging requirements with your supplier.

Q: Are these parts RoHS compliant?

A: Yes. The Molex 0050579409 is ROHS3 compliant. The TE Connectivity 104257-8 is RoHS compliant. Both meet environmental compliance requirements for restricted substance use.

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