Molex 0349617340 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Molex 0349617340 is a through-hole, right-angle rectangular connector header with 34 positions across 3 rows, designed for board-to-cable/wire applications. This component features shrouded 4-wall construction with solder termination and latch lock fastening. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

0349617340

MolexIn Stock: 8580349617340 Datasheet

Current PartRFQ

0349617343

MolexIn Stock: 7280349617343 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0349617340 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Connector type classification (Header)
• Position count (34 positions)
• Row configuration (3 rows)
• Mounting orientation (Through Hole, Right Angle)
• Shrouding design (Shrouded - 4 Wall)
• Termination method (Solder)
• Insulation material composition (Syndiotactic Polystyrene, Glass Filled)
• Physical dimensions (Insulation height 0.654", Contact post length 0.108")
• Contact finish specification (Tin)

The Molex 0349617340 belongs to the Mini50 34961 series. Substitute parts must maintain compatibility across these core parameters to ensure mechanical fit, electrical performance, and functional interchangeability within existing designs.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0349617343 is the manufacturer-recommended substitute for the obsolete 0349617340. Both components share the same series designation (Mini50 34961) and maintain identical mechanical and electrical interface specifications across position count, row configuration, mounting type, shrouding, and termination method.

The 0349617343 offers the advantage of active product status, ensuring continued availability and supply chain support. The substitute provides specified operating temperature range (-40°C ~ 105°C) and voltage rating (14VDC) with UL94 HB flammability certification, parameters not documented for the original part.

Minor differences exist in contact material composition (Brass vs. Copper Alloy) and fastening mechanism (Latch Holder vs. Latch Lock). These variations remain within the Mini50 34961 series design envelope and do not compromise mechanical fit or functional compatibility in board-to-cable/wire applications.

The substitute maintains ROHS3 compliance trajectory consistent with the original part specification.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0349617343 directly replace the 0349617340 in existing designs?

A: Yes. Both components maintain identical position count (34), row configuration (3), mounting orientation (through-hole right-angle), shrouding design (4-wall), and termination method (solder). Physical dimensions for insulation height and contact post length are identical. The components are mechanically and electrically interchangeable.

Q: What is the significance of the "Breakaway" designation on the 0349617343?

A: The breakaway feature on the 0349617343 indicates the connector header can be separated into individual sections if required. This does not affect compatibility with mating connectors or existing board layouts designed for the 0349617340.

Q: How do the contact material differences affect performance?

A: The 0349617340 uses Copper Alloy contacts while the 0349617343 uses Brass contacts. Both materials are tin-finished and suitable for solder termination. The material difference does not impact electrical performance or mechanical interface compatibility within the Mini50 34961 series specification envelope.

Q: What is the difference between Latch Lock and Latch Holder fastening types?

A: Both fastening mechanisms provide positive retention within the Mini50 34961 series design. The specific fastening type variation does not affect mating connector compatibility or board-level installation procedures.

Q: Why is operating temperature specified for the substitute but not the original part?

A: The 0349617343 is an active product with complete technical documentation. The 0349617340, being obsolete, may have incomplete specification records. The -40°C ~ 105°C operating range of the substitute reflects standard Mini50 34961 series performance parameters.

Q: Are there any packaging or inventory considerations?

A: The 0349617340 has 837 pieces in stock (obsolete status). The 0349617343 has 651 pieces in stock (active status). For new designs or long-term production requirements, the active substitute ensures ongoing supply availability.