Molex 0347970302 Rectangular Connector Plug Housing - Equivalent & Substitute Parts

Part Overview

The Molex 0347970302 is a 3-position rectangular connector plug housing with a 0.138" (4.60mm) pitch, designed for free-hanging in-line applications. This component features male blade contacts with crimp termination and locking ramp fastening. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

0347970302

MolexIn Stock: 9730347970302 Datasheet

Current PartRFQ

0988221030

MolexIn Stock: 11740988221030 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0347970302 is determined by the following critical parameters:

• Connector Type: Plug housing configuration
• Number of Positions: 3-position capacity
• Pitch Tolerance: Contact spacing of 0.138" (4.60mm) or compatible alternative spacing
• Contact Type: Male blade or male pin configuration
• Mounting Type: Free hanging in-line orientation
• Contact Termination: Crimp-style termination
• Compliance: ROHS3 compliance and MSL rating

The Molex 0988221030 qualifies as a manufacturer-recommended substitute despite a pitch variation of 0.131" (3.33mm). This substitution is valid when system design accommodates the modified contact spacing and the alternative fastening mechanism (latch holder versus locking ramp).

Parameter Comparison

Engineering Selection Recommendations

The Molex 0988221030 is the manufacturer-recommended substitute for the obsolete 0347970302. Both components maintain ROHS3 compliance and MSL rating of 1, ensuring regulatory and environmental compatibility. The substitute part is currently in active production status with documented inventory availability.

Selection of the 0988221030 requires design verification for the following variations: pitch modification from 4.60mm to 3.33mm, contact type change from male blade to male pin, and fastening mechanism transition from locking ramp to latch holder. These differences necessitate evaluation within the specific application context to confirm mechanical and electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 0988221030 directly replace the 0347970302 without design modification?

A: Direct replacement requires verification of pitch tolerance, contact blade-to-pin compatibility, and fastening mechanism compatibility within your specific application. The pitch difference of 0.017" (0.17mm) and contact type variation must be evaluated against system constraints.

Q: What is the significance of the pitch difference between these parts?

A: Pitch defines the center-to-center spacing between contact positions. The 0.138" (4.60mm) original pitch differs from the 0.131" (3.33mm) substitute pitch. This affects PCB layout, mating connector design, and overall assembly dimensions. Compatibility depends on whether your system design accommodates this spacing variation.

Q: Are both parts RoHS compliant?

A: Yes. Both the 0347970302 and 0988221030 are ROHS3 compliant with MSL rating of 1 (unlimited moisture sensitivity), meeting current environmental and regulatory requirements.

Q: What is the difference between male blade and male pin contacts?

A: Male blade contacts feature a flat, blade-like termination geometry, while male pin contacts have a cylindrical pin geometry. These contact types interface with different mating connector designs and affect insertion force and contact retention characteristics.

Q: Why is the original part obsolete?

A: The 0347970302 is classified as obsolete by the manufacturer. The 0988221030 represents the current active product line for equivalent 3-position rectangular connector plug housings from Molex.

Q: What packaging is available for the substitute part?

A: The 0988221030 is supplied in bulk packaging with documented inventory availability of 1081 pieces.