Molex 0334810423 Rectangular Connector Plug Housing – Equivalent & Substitute Parts

Part Overview

The Molex 0334810423 is a 4-position rectangular connector plug housing with a 3.50mm pitch, designed for male blade contact termination in free-hanging inline applications. This component is classified as Obsolete and is no longer in active production. Due to its obsolete status, sourcing original inventory becomes increasingly difficult. Identifying equivalent substitute parts with matching electrical and mechanical specifications ensures design continuity and maintains system compatibility in applications requiring this connector housing type.

Substiute Parts

0334810423

MolexIn Stock: 7090334810423 Datasheet

Current PartRFQ

0334814423

MolexIn Stock: 9670334814423 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Molex 0334810423 are identified based on strict electrical and mechanical parameter matching within the MX150 33481 series. The following parameters determine substitution eligibility:

Critical Matching Parameters:

• Connector Type: Plug
• Contact Type: Male Blade
• Number of Positions: 4
• Pitch: 0.138" (3.50mm)
• Number of Rows: 1
• Mounting Type: Free Hanging (In-Line)
• Contact Termination: Crimp
• Fastening Type: Locking Ramp
• Features: Sealed
• Series: MX150 33481

Allowable Variations:

• Insulation Material composition (different polymer formulations within the same housing family)
• Operating Temperature range (extended specifications)
• Product Status (Active vs. Obsolete)

The substitute part must maintain identical mechanical interface dimensions, contact configuration, and sealing characteristics to ensure direct compatibility in existing applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: Molex 0334814423

The Molex 0334814423 is the manufacturer-recommended substitute for the obsolete 0334810423. Both components share identical mechanical and electrical specifications within the MX150 33481 series, ensuring direct compatibility in existing designs.

Selection Rationale:

1. Product Status: The 0334814423 maintains Active product status, ensuring long-term availability and continued manufacturing support. The original 0334810423 is Obsolete, presenting supply chain risk.

2. Electrical Compatibility: Both parts feature identical connector type (Plug), contact type (Male Blade), position count (4), and pitch (3.50mm), guaranteeing mechanical interchangeability.

3. Mechanical Interface: Identical mounting type (Free Hanging In-Line), fastening mechanism (Locking Ramp), and sealing characteristics (Sealed) confirm form-fit-function compatibility.

4. Regulatory Compliance: Both components share identical HTSUS classification (8538.90.6000) and ECCN designation (EAR99), maintaining compliance with existing procurement and export documentation.

5. Inventory Availability: The substitute part demonstrates higher current inventory levels (945 Pcs vs. 693 Pcs), supporting immediate procurement requirements.

6. Insulation Material Enhancement: The 0334814423 incorporates dual insulation material specifications (Polyamide and Syndiotactic Polystyrene), providing expanded material options while maintaining the original SPS glass-filled composition.

7. Operating Temperature Definition: The substitute specifies an operating temperature range of -40°C to 150°C, providing explicit thermal performance parameters absent in the original part specification.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0334814423 directly replace the 0334810423 in existing assemblies?

A: Yes. Both components are members of the MX150 33481 series and share identical specifications for connector type, contact configuration, pitch, mounting method, and sealing characteristics. The 0334814423 is the manufacturer-recommended substitute and provides direct mechanical and electrical compatibility.

Q: What is the primary difference between these two parts?

A: The 0334810423 is classified as Obsolete, while the 0334814423 maintains Active product status. The substitute part also specifies an operating temperature range (-40°C to 150°C) and incorporates expanded insulation material options. These differences do not affect mechanical interchangeability.

Q: Are the contact termination methods identical?

A: Yes. Both the 0334810423 and 0334814423 utilize crimp contact termination with a locking ramp fastening mechanism. Existing crimp tooling and contact specifications remain applicable to the substitute part.

Q: Does the insulation material change affect performance?

A: Both parts maintain sealed housing characteristics and support the same operating environment. The 0334814423 specifies dual material composition (Polyamide and Syndiotactic Polystyrene), while the original lists Syndiotactic Polystyrene glass-filled. The substitute maintains compatibility with the original SPS specification while offering additional material options.

Q: What is the pitch specification, and does it remain constant?

A: Both parts feature a 0.138" (3.50mm) pitch, which defines the center-to-center spacing between contact positions. This specification is identical and ensures mechanical compatibility with mating connectors and PCB layouts designed for the original part.

Q: Are there any certifications or compliance differences?

A: Both components share identical HTSUS classification (8538.90.6000) and ECCN designation (EAR99). No compliance differences exist between the two parts.

Q: What mounting configuration do these connectors support?

A: Both the 0334810423 and 0334814423 are configured for Free Hanging (In-Line) mounting, supporting applications where the connector is not panel-mounted or housed within an enclosure.

Q: Is the substitute part available in the same color?

A: Yes. Both components are specified in Gray, maintaining visual consistency with existing assemblies and documentation.