Molex 0554560459 Equivalent & Substitute Parts

Part Overview

The Molex 0554560459 is a surface mount, right-angle rectangular connector header with 4 positions at 1.25mm pitch. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The connector features shrouded 4-wall design with solder termination and push-pull fastening, suitable for board-to-cable/wire interconnections in compact electronic assemblies.

Substiute Parts

0554560459

MolexIn Stock: 10190554560459 Datasheet

Current PartRFQ

DF14A-4P-1.25H(26)

Hirose Electric Co LtdIn Stock: 16977DF14A-4P-1.25H(26) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Molex 0554560459 is determined by strict alignment of the following electrical and mechanical parameters:

• Connector type: Header with male pin contacts
• Number of positions: 4
• Mating pitch: 0.049" (1.25mm)
• Mounting configuration: Surface mount, right angle
• Shrouding: Shrouded 4-wall design
• Termination method: Solder
• Fastening mechanism: Push-pull
• Contact material: Brass
• Insulation material: Polyamide (PA), Nylon
• Flammability rating: UL94 V-0

The Hirose Electric DF14A-4P-1.25H(26) meets all these core substitution criteria, providing functional and mechanical compatibility for applications requiring the Molex 0554560459.

Parameter Comparison

Engineering Selection Recommendations

The Hirose DF14A-4P-1.25H(26) is a direct functional substitute for the Molex 0554560459. Both components share identical core specifications for connector type, position count, pitch, mounting orientation, and shrouding configuration. Both maintain UL94 V-0 flammability compliance and unlimited moisture sensitivity rating (MSL 1).

The Hirose part carries current RoHS compliance status, while the Molex part is ROHS3 compliant. Both are classified as obsolete products. The electrical and mechanical parameters align sufficiently for direct substitution in applications originally designed for the Molex 0554560459.

Frequently Asked Questions (FAQ)

Q: What makes the Hirose DF14A-4P-1.25H(26) a suitable substitute for the Molex 0554560459?

A: Both connectors share identical core specifications: 4-position header configuration, 1.25mm mating pitch, surface mount right-angle mounting, shrouded 4-wall design, solder termination, and push-pull fastening. Contact material, insulation material, and flammability ratings are equivalent.

Q: Are there dimensional differences between these connectors?

A: The contact length at mating differs between the two parts. The Molex 0554560459 specifies 0.110" (2.79mm) contact length, while the Hirose DF14A-4P-1.25H(26) specifies 0.086" (2.20mm). The Hirose part also has a lower insulation height of 0.098" (2.50mm) compared to the Molex 0.177" (4.50mm). These dimensional variations must be evaluated against specific application requirements.

Q: What is the difference in packaging between these parts?

A: The Molex 0554560459 is supplied in Tape & Reel (TR) packaging, while the Hirose DF14A-4P-1.25H(26) is supplied in Cut Tape (CT) packaging. Packaging format may affect procurement, handling, and assembly processes.

Q: Do both parts have the same electrical ratings?

A: The Hirose DF14A-4P-1.25H(26) specifies 1A current rating and 150V voltage rating. The Molex 0554560459 does not provide current or voltage ratings in the available specifications. Applications requiring specific electrical performance should reference the Hirose ratings as the available benchmark.

Q: Are both parts RoHS compliant?

A: The Molex 0554560459 is ROHS3 compliant. The Hirose DF14A-4P-1.25H(26) is RoHS compliant. Both meet RoHS requirements, though under different compliance standards.