Molex 0393550009 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Molex 0393550009 is a 9-position terminal block header with male pins, shrouded design, and 4.6mm pitch in a 90° right-angle through-hole configuration. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement. The part operates at 10A (UL) and 300V, suitable for industrial control and power distribution applications requiring reliable solder termination.

Substiute Parts

0393550009

MolexIn Stock: 9600393550009 Datasheet

Current PartRFQ

0395021009

MolexIn Stock: 62600395021009 Datasheet

DirectRFQ

284512-9

TE Connectivity AMP ConnectorsIn Stock: 845284512-9 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0393550009 is determined by strict alignment of the following parameters:

• Position Count & Pitch: All substitutes must maintain 9 positions at 0.138" (4.60mm) pitch to ensure mechanical and electrical compatibility with mating connectors and PCB layouts.
• Header Configuration: Shrouded (4-side) male pin design with 90° right-angle orientation is mandatory for form-factor compatibility.
• Electrical Ratings: Voltage rating of 300V UL is non-negotiable. Current rating must meet or exceed 10A UL minimum.
• Termination & Mounting: Solder termination and through-hole mounting are required for PCB assembly compatibility.
• Compliance: RoHS3 compliance is required for regulatory alignment with the original part.

The identified substitutes meet these core criteria while offering improved product status (active vs. obsolete) and enhanced thermal or electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Molex 0395021009 is the primary substitute for direct replacement. Both parts are Molex products within the Eurostyle terminal block family, ensuring design continuity. The 0395021009 is active in production with superior inventory availability (6226 pcs vs. 907 pcs). The current rating of 8A is lower than the original 10A specification; this substitute is suitable only for applications where the actual circuit current does not exceed 8A. The operating temperature range (-40°C to 105°C) is narrower than the original part's 140°C maximum, requiring thermal environment verification. Housing material upgrade to PA66 (Nylon 6/6) provides improved mechanical properties.

TE Connectivity 284512-9 is an alternative substitute from a different manufacturer. This part exceeds the original electrical specifications with 11A current rating and -40°C to 110°C operating range. The phosphor bronze contact material offers enhanced durability compared to brass. Housing material is PA66 (Nylon 6/6). RoHS compliance is confirmed. This substitute is suitable for applications requiring higher current capacity or extended thermal range. Cross-manufacturer substitution requires verification of mechanical fit and mating connector compatibility.

Selection between substitutes depends on application current requirements, thermal environment, and procurement constraints. Both parts maintain the critical 9-position, 4.6mm pitch, 90° right-angle, shrouded male pin configuration required for form-factor compatibility.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0395021009 be used in place of the 0393550009 in all applications?

A: The 0395021009 is mechanically and electrically compatible for applications where circuit current does not exceed 8A and operating temperature remains within -40°C to 105°C. Applications requiring the original 10A rating or 140°C maximum temperature require the TE Connectivity 284512-9 or continued sourcing of the original part.

Q: What are the key differences between the Molex 0395021009 and TE Connectivity 284512-9?

A: Both maintain identical mechanical form factor (9 positions, 4.6mm pitch, 90° right angle). The Molex part has 8A current rating and -40°C to 105°C range. The TE part has 11A current rating and -40°C to 110°C range. Contact material differs: Molex uses brass; TE uses phosphor bronze. Housing material is PA66 in both substitutes versus PA46 in the original.

Q: Are there packaging differences between these parts?

A: The original Molex 0393550009 packaging is not specified. The Molex 0395021009 is supplied in bulk packaging. The TE Connectivity 284512-9 is also supplied in bulk packaging. Confirm packaging requirements with procurement specifications.

Q: Will the TE Connectivity 284512-9 work with existing mating connectors designed for the Molex part?

A: The TE part maintains identical pitch (4.6mm), position count (9), and shrouded male pin configuration. Mechanical compatibility with existing mating connectors is expected. Physical verification is recommended for critical applications due to minor dimensional variations in contact tail length and insulation height.

Q: Are all three parts RoHS compliant?

A: Yes. The original Molex 0393550009 and substitute Molex 0395021009 are ROHS3 compliant. The TE Connectivity 284512-9 is RoHS compliant. All parts meet current environmental regulations.