Molex 0781271339 FFC/FPC Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0781271339 is a 33-position flat flexible connector (FFC/FPC) with 0.5mm pitch, designed for surface mount applications. This connector features vertical orientation with single-sided contacts and solder termination. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and component sourcing.

Substiute Parts

0781271339

MolexIn Stock: 9570781271339 Datasheet

Current PartRFQ

0781273310

MolexIn Stock: 6610781273310 Datasheet

MFR RecommendedRFQ

0781193310

MolexIn Stock: 11870781193310 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Molex 0781271339 is determined by the following critical parameters:

• Number of Positions: 33 positions (fixed requirement)
• Pitch: 0.020" (0.50mm) (fixed requirement)
• Mounting Type: Surface Mount (fixed requirement)
• Connector/Contact Type: Contacts, Vertical - 1 Sided (fixed requirement)
• Voltage Rating: 50V (minimum requirement)
• Current Rating: 0.5A (minimum requirement)
• Operating Temperature Range: -40°C ~ 85°C (minimum requirement)
• Height Above Board: 0.161" (4.10mm) (fixed requirement)
• FFC/FCB Thickness: 0.30mm (fixed requirement)
• Contact Finish: Tin Bismuth (fixed requirement)
• Material Flammability Rating: UL94 V-0 (minimum requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (fixed requirement)

Two substitute parts meet these criteria with variations in housing material, contact material, and product status.

Parameter Comparison

Engineering Selection Recommendations

Molex 0781273310 (MFR Recommended Substitute)

This part is designated as the manufacturer-recommended substitute. It carries active product status and RoHS compliance. Limited technical parameters are provided in the available data; however, the manufacturer designation indicates functional compatibility with the obsolete 0781271339. This part is suitable for new designs and ongoing production where manufacturer support is required.

Molex 0781193310 (Parametric Equivalent)

This part provides a complete parametric match across all critical electrical and mechanical specifications: 33 positions, 0.5mm pitch, 50V voltage rating, 0.5A current rating, -40°C to 85°C operating temperature, and identical physical dimensions. The part carries active product status and is available in Tape & Reel packaging. Material differences include Liquid Crystal Polymer (LCP) housing instead of Polyamide (PA46) and Phosphor Bronze contacts instead of Copper Alloy. The mating cycle rating is 10 cycles versus 20 cycles for the original part. These material variations do not affect electrical or mechanical compatibility for standard applications.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0781273310 be used as a direct replacement for the 0781271339?

A: The Molex 0781273310 is designated as the manufacturer-recommended substitute. However, complete technical specifications are not provided in the available data. Verification of position count, pitch, and mounting configuration is necessary before implementation.

Q: What are the differences between the Molex 0781193310 and the original 0781271339?

A: The 0781193310 matches all critical electrical and mechanical parameters. Differences include housing material (LCP versus Polyamide), contact material (Phosphor Bronze versus Copper Alloy), and mating cycle rating (10 versus 20 cycles). These variations do not affect electrical performance or mechanical fit for standard applications.

Q: Which substitute part should be selected for new designs?

A: Selection depends on application requirements. The 0781273310 is the manufacturer-recommended option with active status. The 0781193310 provides a complete parametric equivalent with documented specifications and Tape & Reel packaging availability.

Q: Are both substitute parts RoHS compliant?

A: The 0781273310 carries RoHS compliance designation. The 0781193310 RoHS status is not specified in the available data. Compliance verification is necessary for applications with RoHS requirements.

Q: What is the impact of the different mating cycle ratings?

A: The original part is rated for 20 mating cycles, while the 0781193310 is rated for 10 cycles. This difference should be evaluated based on the intended application's connector engagement frequency.

Q: Are the substitute parts available in the same packaging as the original?

A: The original part packaging is not specified. The 0781193310 is available in Tape & Reel (TR) packaging. Packaging availability for the 0781273310 is not specified in the available data.