Molex 5019123790 FPC Connector - Equivalent & Substitute Parts

Part Overview

The Molex 5019123790 is a 37-position FPC (Flat Flexible) connector from the Easy-On 501912 series, designed for surface mount, right-angle applications with bottom contact configuration. This connector features a 0.30mm pitch and is rated for 50V at 0.2A with operating temperatures from -20°C to 85°C.

The 5019123790 is classified as obsolete. Identifying equivalent substitute parts is essential for maintaining design continuity, ensuring supply chain reliability, and supporting long-term product availability for applications currently utilizing this connector.

Substiute Parts

5019123790

MolexIn Stock: 7745019123790 Datasheet

Current PartRFQ

5035663702

MolexIn Stock: 8295035663702 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for FPC connectors is determined by strict alignment of electrical and mechanical parameters. The following criteria establish whether a part qualifies as a direct substitute for the Molex 5019123790:

Critical Parameters for Substitution:

• Number of positions: 37
• Pitch: 0.012" (0.30mm)
• Mounting type: Surface Mount, Right Angle
• Connector/contact type: Contacts, Bottom
• Termination method: Solder
• Voltage rating: 50V minimum
• Current rating: 0.2A minimum
• FFC, FCB thickness: 0.20mm
• Locking feature: Flip Lock
• Material flammability rating: UL94 V-0 minimum
• RoHS compliance: ROHS3 Compliant

The Molex 5035663702 meets all critical substitution parameters. Both connectors share identical electrical ratings, position count, pitch, mounting configuration, and contact arrangement. Both are ROHS3 compliant and UL94 V-0 rated. The substitute part is classified as active product status, ensuring ongoing availability and supply chain support.

Parameter Comparison

Engineering Selection Recommendations

The Molex 5035663702 is the qualified substitute for the obsolete Molex 5019123790. Both parts maintain identical electrical specifications, position configuration, and pitch geometry. Both connectors satisfy ROHS3 compliance and UL94 V-0 flammability requirements.

The substitute part offers extended operating temperature range (-40°C to 105°C versus -20°C to 85°C) and active product status, ensuring continued manufacturing support and supply availability. Material composition differences (Liquid Crystal Polymer housing and Phosphor Bronze contacts in the substitute versus Polymer and Copper Alloy in the main part) represent material upgrades that maintain electrical and mechanical compatibility while improving long-term reliability characteristics.

Selection of the 5035663702 is appropriate for new designs and for applications requiring replacement of the obsolete 5019123790, provided that mechanical envelope constraints accommodate the specified height above board of 0.037" (0.95mm).

Frequently Asked Questions (FAQ)

Q: Can the Molex 5035663702 directly replace the 5019123790 in existing applications?

A: Yes. Both connectors share identical electrical ratings (50V, 0.2A), position count (37), pitch (0.30mm), mounting configuration (surface mount, right angle), and contact arrangement (bottom contacts). Both are ROHS3 compliant and UL94 V-0 rated. The substitute part is active product status, ensuring supply continuity.

Q: What are the key differences between these two connectors?

A: The primary differences are product status (obsolete versus active), operating temperature range (-20°C to 85°C versus -40°C to 105°C), housing material (Polymer versus Liquid Crystal Polymer), contact material (Copper Alloy versus Phosphor Bronze), and cable end type (Tapered versus Tabbed). These differences do not affect electrical compatibility or mechanical fit for standard applications.

Q: Does the substitute part have different packaging?

A: Yes. The main part (5019123790) is supplied in Cut Tape (CT) packaging, while the substitute (5035663702) is supplied in Tape & Reel (TR) packaging. This affects order quantities and handling but does not impact component functionality.

Q: Are there any height or mechanical envelope considerations?

A: The substitute part specifies a height above board of 0.037" (0.95mm). The main part does not specify this dimension. Verify that your PCB layout and mechanical design accommodate this height specification before implementation.

Q: What is the significance of the different contact materials?

A: The substitute uses Phosphor Bronze contacts versus Copper Alloy in the main part. Phosphor Bronze provides enhanced durability and contact resistance characteristics. This represents a material improvement that maintains electrical compatibility while supporting extended mating cycle performance.

Q: Are both parts suitable for high-reliability applications?

A: Both connectors meet UL94 V-0 flammability requirements and ROHS3 compliance. The substitute part offers extended operating temperature range and active product status. Material composition upgrades in the substitute (LCP housing, Phosphor Bronze contacts) support enhanced reliability for demanding applications.