Molex 0334721591 Rectangular Connector Housing – Equivalent & Substitute Parts

Part Overview

The Molex 0334721591 is a 12-position receptacle housing for rectangular connectors, designed for applications requiring sealed, free-hanging inline connections with a 0.138" (3.50mm) pitch. This component is classified as an active product and is currently in stock with 806 units available. The housing accommodates female socket contacts via crimp termination and features a latch holder fastening mechanism.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector family, enabling direct replacement in applications where housing color or material composition differences do not impact functional requirements.

Substiute Parts

0334721591

MolexIn Stock: 8380334721591 Datasheet

Current PartRFQ

0334721207

MolexIn Stock: 48740334721207 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Molex 0334721591 are identified based on strict equivalence across the following critical parameters:

• Connector Type & Contact Configuration: Receptacle housing with female socket contacts
• Electrical Interface: 12-position layout with 0.138" (3.50mm) pitch
• Mechanical Form Factor: 2-row configuration, free-hanging inline mounting
• Termination Method: Crimp contact termination with latch holder fastening
• Sealing & Protection: Sealed housing design

The substitute part Molex 0334721591 maintains all core electrical and mechanical parameters. Variations in housing color (black versus gray) and insulation material composition (Syndiotactic Polystyrene with glass fill versus Polyamide with glass fill and SPS) do not affect connector compatibility or functional performance in applications where these material properties are not specified as critical design constraints.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0334721591 and Molex 0334721207 are active products within the MX150 33472 series and maintain identical electrical and mechanical specifications for 12-position receptacle housing applications.

The substitute part 0334721207 carries explicit RoHS3 compliance and REACH unaffected status certifications, with defined moisture sensitivity level (MSL 1 – Unlimited). The main part 0334721591 does not specify these compliance attributes in the provided documentation.

Selection between these parts should be based on:

1. Compliance Requirements: Applications requiring documented RoHS3 or REACH compliance should specify part 0334721207.
2. Environmental Conditions: Applications with moisture exposure considerations should reference the MSL rating of part 0334721207.
3. Material Specifications: Applications with specific insulation material requirements should verify whether Syndiotactic Polystyrene alone (0334721591) or the Polyamide/Nylon/SPS combination (0334721207) meets design constraints.
4. Color Coding: Applications using color-coded connector identification should specify the appropriate housing color (black or gray).

Both parts are suitable for crimp termination with female socket contacts and support identical mounting and fastening configurations.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0334721207 directly replace the Molex 0334721591 in existing designs?

A: Yes, the 0334721207 is electrically and mechanically equivalent. Both housings accommodate 12 female socket contacts at 0.138" (3.50mm) pitch with identical mounting and fastening methods. Substitution is valid when housing color and material composition are not specified as critical design parameters.

Q: What is the primary difference between these two connector housings?

A: The main differences are housing color (black versus gray) and insulation material composition. The 0334721591 uses Syndiotactic Polystyrene with glass fill, while the 0334721207 combines Polyamide, Nylon, and Syndiotactic Polystyrene with glass fill. Both materials provide sealed housing protection.

Q: Does the substitute part 0334721207 have better compliance documentation?

A: The 0334721207 includes explicit RoHS3 compliance and REACH unaffected status certifications, with a defined moisture sensitivity level (MSL 1 – Unlimited). The 0334721591 does not specify these compliance attributes in available documentation. Applications requiring documented compliance should reference the 0334721207.

Q: Are contacts included with either housing?

A: No. Both the 0334721591 and 0334721207 are housings only. Female socket contacts must be sourced separately and installed via crimp termination.

Q: What is the difference in packaging between these parts?

A: The 0334721591 is supplied in standard packaging, while the 0334721207 is supplied in bulk packaging. Packaging format does not affect connector functionality or compatibility.

Q: Can I use these housings with different contact types?

A: No. Both housings are designed specifically for female socket contacts with crimp termination. The housing geometry and contact retention mechanism are optimized for this contact type only.

Q: What mounting configurations do these housings support?

A: Both housings are configured for free-hanging inline mounting with latch holder fastening. They are not designed for panel-mount or through-hole PCB applications.