Molex 0334721381 Rectangular Connector Housing - Equivalent & Substitute Parts

Part Overview

The Molex 0334721381 is a 12-position rectangular connector receptacle housing designed for the MX150 33472 series. This component functions as a housing for female socket contacts with a 0.138" (3.50mm) pitch configuration, supporting 2-row arrangements in a free-hanging, in-line mounting format. The housing features sealed construction with a black insulation material composition of syndiotactic polystyrene (SPS) glass-filled polymer.

The part maintains Active product status with 834 units currently in stock. Substitute parts are identified to address inventory availability, material composition preferences, or operational environment requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

0334721381

MolexIn Stock: 8630334721381 Datasheet

Current PartRFQ

0334721207

MolexIn Stock: 48740334721207 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0334721381 is determined by strict equivalence across the following critical parameters:

• Connector Type: Must be Receptacle
• Contact Type: Must be Female Socket
• Number of Positions: Must be 12
• Pitch: Must be 0.138" (3.50mm)
• Number of Rows: Must be 2
• Mounting Type: Must be Free Hanging (In-Line)
• Contact Termination: Must be Crimp
• Fastening Type: Must be Latch Holder
• Features: Must include Sealed construction
• Series: Must be MX150 33472

Variations in color, insulation material composition, and packaging format do not affect functional interchangeability when all electrical and mechanical parameters remain constant. The substitute part identified (Molex 0334721207) maintains complete equivalence across all critical parameters while differing only in housing color (Gray vs. Black) and insulation material composition (Polyamide/Nylon glass-filled with SPS vs. SPS glass-filled).

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (0334721381)

The Molex 0334721381 maintains Active product status with established inventory availability. This part is suitable for applications where black housing color is a specified requirement or where the specific SPS glass-filled insulation material composition is mandated by design specifications.

Substitute Part Selection (0334721207)

The Molex 0334721207 provides functional equivalence with the following additional advantages:

• Compliance Documentation: RoHS3 compliance and REACH unaffected status are explicitly documented, supporting regulatory requirements in restricted substance applications.
• Environmental Specification: Operating temperature range of -40°C to 150°C is defined, enabling use in temperature-controlled or temperature-sensitive applications.
• Moisture Handling: MSL rating of 1 (Unlimited) indicates unrestricted moisture sensitivity, suitable for standard storage and handling conditions.
• Inventory Availability: 4771 units in stock provide significantly higher availability compared to the main part.

Selection between these parts depends on specific design requirements regarding housing color and material composition. Both parts are electrically and mechanically interchangeable within the MX150 33472 series connector system.

Frequently Asked Questions (FAQ)

Q: Are the Molex 0334721381 and 0334721207 electrically interchangeable?

A: Yes. Both parts maintain identical electrical specifications across all critical parameters: 12-position receptacle configuration, female socket contacts, 0.138" (3.50mm) pitch, 2-row arrangement, crimp termination, and latch holder fastening. Electrical performance is equivalent.

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

A: The parts differ in housing color (Black vs. Gray) and insulation material composition. The 0334721381 uses syndiotactic polystyrene (SPS) glass-filled material, while the 0334721207 uses polyamide (PA) nylon glass-filled material combined with SPS. These material differences do not affect electrical or mechanical compatibility within the MX150 33472 series.

Q: Can I use the 0334721207 as a direct replacement for the 0334721381 in existing designs?

A: Yes, provided that the design does not specify black housing color as a functional requirement. The substitute part maintains all electrical and mechanical compatibility parameters. If housing color is a design specification, the substitute is not appropriate.

Q: What does the operating temperature specification on the 0334721207 indicate?

A: The -40°C to 150°C operating temperature range on the 0334721207 defines the thermal environment in which the connector housing maintains its mechanical and electrical properties. This specification is not provided for the 0334721381, but both parts are designed for the same connector series and are expected to operate within similar thermal parameters.

Q: Why does the 0334721207 have higher inventory availability?

A: The 0334721207 is packaged in Bulk format with 4771 units in stock, compared to 834 units for the 0334721381. This difference reflects market demand and supply chain positioning for each variant. Both parts are Active products with current manufacturing support.

Q: Are there any compliance differences between these parts?

A: The 0334721207 provides explicit RoHS3 compliance and REACH unaffected status documentation. The 0334721381 does not include these specifications in the provided data. For applications requiring regulatory compliance documentation, the 0334721207 offers defined compliance status.

Q: Do these parts require contacts to be purchased separately?

A: Yes. Both the 0334721381 and 0334721207 are housings only. Contacts are not included and must be sourced separately as compatible MX150 33472 series female socket contacts with crimp termination.

Q: What is the significance of the MSL rating difference?

A: The 0334721207 carries an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling. The 0334721381 lists MSL as Not Applicable, which typically indicates the component does not require moisture-controlled storage. Both parts are suitable for standard warehouse and assembly environments.