Molex 0349618340 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Molex 0349618340 is a shrouded, right-angle rectangular connector header designed for through-hole mounting in board-to-cable/wire applications. This 34-position, 3-row header features male blade contacts with solder termination and latch lock fastening. The part is classified as obsolete, making identification of active equivalent models essential for ongoing design support and procurement continuity.

Substiute Parts

0349618340

MolexIn Stock: 7780349618340 Datasheet

Current PartRFQ

0349618343

MolexIn Stock: 10530349618343 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The Molex 0349618343 qualifies as a manufacturer-recommended substitute for the 0349618340 based on the following alignment of critical parameters:

Matching Parameters:

• Manufacturer: Molex (same family)
• Series: Mini50 34961 (same connector series)
• Number of Positions: 34 (identical)
• Number of Rows: 3 (identical)
• Connector Type: Header (same functional class)
• Contact Type: Male Blade (compatible contact configuration)
• Mounting Type: Through Hole, Right Angle (identical mechanical interface)
• Shrouding: Shrouded - 4 Wall (same protective design)
• Termination: Solder (same assembly method)
• Insulation Material: Syndiotactic Polystyrene (SPS), Glass Filled (identical material)
• Insulation Height: 0.654" (16.61mm) (identical)
• Contact Length - Post: 0.108" (2.75mm) (identical)
• Contact Finish: Tin (same surface treatment)
• Insulation Color: Black (identical)

Key Differentiator: The 0349618343 introduces a defined pitch specification of 0.079" (2.00mm) and transitions from latch lock to latch holder fastening, while the original part number does not specify pitch. The substitute part is active in production status, providing ongoing availability and support.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0349618343 is the manufacturer-recommended active equivalent for the obsolete 0349618340. Selection of the substitute part is based on:

Product Status: The original part is classified as obsolete. The 0349618343 maintains active production status, ensuring long-term availability and supply chain continuity.

Compliance & Certifications: Both parts comply with RoHS3 requirements and carry identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications, supporting regulatory consistency in applications requiring export or compliance documentation.

Mechanical & Electrical Compatibility: The substitute part preserves all critical mechanical parameters including mounting type, shrouding configuration, insulation dimensions, and contact post length. The defined pitch specification (0.079" / 2.00mm) and operating temperature range (-40°C ~ 105°C) in the substitute part provide explicit performance boundaries for design validation.

Material Considerations: The substitute part specifies brass contact material versus copper alloy in the original, with a transition from UL94 V-0 to UL94 HB flammability rating. These material changes remain within the same connector family and do not preclude functional substitution in standard board-to-cable applications.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0349618343 directly replace the 0349618340 in existing designs?

A: Yes. Both parts share identical position count (34), row configuration (3), mounting type (through-hole right-angle), shrouding design (4-wall), and contact post dimensions (0.108" / 2.75mm). The substitute part is the manufacturer-recommended active equivalent.

Q: What is the significance of the pitch specification in the 0349618343?

A: The 0349618343 explicitly defines a mating pitch of 0.079" (2.00mm). This specification clarifies the contact spacing for the Mini50 34961 series. The original part number does not specify pitch in the provided data, but both parts belong to the same series with compatible mechanical interfaces.

Q: Are there differences in contact material between these parts?

A: Yes. The original 0349618340 uses copper alloy contacts, while the substitute 0349618343 uses brass contacts. Both materials are tin-finished and suitable for solder termination in standard connector applications. Brass provides enhanced corrosion resistance in certain environmental conditions.

Q: What is the difference between latch lock and latch holder fastening?

A: The original part uses latch lock fastening, while the substitute uses latch holder fastening. Both are mechanical retention methods for the connector assembly. The specific fastening type should be verified against mating connector specifications to ensure compatibility with existing cable or harness assemblies.

Q: Does the flammability rating change affect application suitability?

A: The original part carries UL94 V-0 rating, while the substitute carries UL94 HB rating. UL94 V-0 indicates superior flame resistance. Applications requiring V-0 certification should verify that the substitute part meets specific regulatory or safety requirements before implementation.

Q: Is the substitute part available in the same packaging format?

A: The original part is supplied in Cut Tape (CT) packaging with 753 units in stock. The substitute part packaging format is not specified in the provided data. Packaging specifications should be confirmed with the supplier for procurement planning.

Q: What operating conditions are specified for the substitute part?

A: The 0349618343 is rated for -40°C to 105°C operating temperature with a 14VDC voltage rating. Current rating varies by wire gauge. The original part does not specify these parameters. Design applications should confirm that these ratings align with system requirements.