Molex 0334721399 Rectangular Connector Housing – Equivalent & Substitute Parts

Part Overview

The Molex 0334721399 is a 12-position receptacle housing for rectangular connectors, designed for applications requiring sealed, free-hanging inline connections with crimp termination. This component is part of the MX150 33472 series and features a 0.138" (3.50mm) pitch configuration with dual-row arrangement. The part maintains Active product status and is available in high inventory volume (886 pieces). Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across alternative part numbers, enabling procurement flexibility and supply chain continuity.

Substiute Parts

0334721399

MolexIn Stock: 9560334721399 Datasheet

Current PartRFQ

0334721207

MolexIn Stock: 48740334721207 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Molex 0334721399 are identified based on strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (12)
• Pitch specification (0.138" / 3.50mm)
• Row configuration (2 rows)

Mechanical Compatibility Parameters:

• Mounting type (Free Hanging In-Line)
• Contact termination method (Crimp)
• Fastening mechanism (Latch Holder)
• Housing color (Gray)
• Sealed feature requirement

Series Alignment:

• MX150 33472 series designation

The substitute part Molex 0334721399 maintains full equivalence across all electrical and mechanical parameters. Variations in insulation material composition and operating temperature specifications do not affect functional interchangeability within the MX150 33472 series framework.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (0334721399): The Molex 0334721399 is suitable for applications where standard MX150 33472 series specifications are required. This part maintains Active product status with established supply availability (886 pieces in stock). Selection is appropriate for standard industrial and commercial connector applications.

Substitute Part Selection (0334721207): The Molex 0334721207 provides functional equivalence with enhanced documentation and compliance specifications. This part is ROHS3 compliant and REACH unaffected, with defined operating temperature range (-40°C ~ 150°C) and MSL rating (1 - Unlimited). The substitute part offers superior inventory availability (4771 pieces in stock) and is packaged in bulk format. Selection is recommended for applications requiring explicit environmental compliance documentation or extended temperature operation within the specified range.

Interchangeability Basis: Both parts are functionally interchangeable within the MX150 33472 series framework. Substitution is valid based on identical electrical and mechanical parameters. The choice between parts should be driven by procurement requirements, compliance documentation needs, and inventory availability rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Are the 0334721399 and 0334721207 fully interchangeable?

A: Yes. Both parts are functionally interchangeable within the MX150 33472 series. They share identical connector type, contact configuration, pitch, row arrangement, mounting method, termination type, and fastening mechanism. Substitution is valid for all applications requiring 12-position, 3.50mm pitch sealed receptacle housings with crimp termination.

Q: What is the difference in insulation material between these parts?

A: The 0334721399 uses Syndiotactic Polystyrene (SPS) with glass fill. The 0334721207 uses Polyamide (PA) Nylon with glass fill and Syndiotactic Polystyrene (SPS). Both materials are suitable for sealed connector housing applications and maintain equivalent electrical and mechanical performance within the MX150 33472 series.

Q: Does the operating temperature specification affect substitution?

A: The 0334721207 provides an explicit operating temperature range of -40°C ~ 150°C. The 0334721399 does not specify operating temperature. For applications requiring operation within defined temperature limits, the 0334721207 provides documented thermal performance. Both parts are functionally equivalent for standard industrial temperature environments.

Q: What is the significance of the packaging difference?

A: The 0334721399 is supplied with unspecified packaging, while the 0334721207 is supplied in bulk packaging. Packaging format does not affect connector functionality or interchangeability. Selection should be based on procurement quantity requirements and inventory management practices.

Q: Are there compliance differences between these parts?

A: The 0334721207 provides explicit ROHS3 compliance and REACH unaffected status. The 0334721399 does not specify these certifications. For applications requiring documented environmental compliance, the 0334721207 is the appropriate selection. Both parts carry identical ECCN (EAR99) and HTSUS classifications.

Q: Can I use these parts interchangeably in existing designs?

A: Yes. Both parts are mechanically and electrically equivalent within the MX150 33472 series. Existing designs utilizing the 0334721399 can incorporate the 0334721207 without design modification. The sealed housing, latch fastening, and crimp termination interface remain identical.

Q: What does MSL rating mean for this connector?

A: The Moisture Sensitivity Level (MSL) rating of 1 (Unlimited) on the 0334721207 indicates the part has unlimited shelf life without moisture exposure controls. This is standard for sealed connector housings and does not impose storage or handling restrictions.