IL-4P-S3FP2 Equivalent & Substitute Parts

Part Overview

The IL-4P-S3FP2 is a rectangular connector header manufactured by JAE Electronics, designed for through-hole, right-angle mounting applications. This 4-position connector operates at 2.5mm pitch and features solder termination with friction lock fastening. The part is currently in active production status with 818 units available in inventory.

Substitute parts become necessary when the primary part reaches end-of-life status, experiences supply constraints, or when design requirements allow for compatible alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

IL-4P-S3FP2

JAE ElectronicsIn Stock: 903IL-4P-S3FP2 Datasheet

Current PartRFQ

DF1-4P-2.5DS(05)

Hirose Electric Co LtdIn Stock: 3988DF1-4P-2.5DS(05) Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IL-4P-S3FP2 is determined by the following critical parameters:

• Connector Type & Contact Type: Must be Header with Male Pin configuration
• Number of Positions & Pitch: Must maintain 4 positions at 0.098" (2.50mm) mating pitch
• Mounting Style: Must support Through Hole, Right Angle mounting
• Termination & Fastening: Must use Solder termination with Friction Lock fastening
• Contact Material & Shape: Must use Brass material with Square contact shape
• Insulation Material: Must use Polyamide or Nylon-based insulation
• Flammability & Compliance: Must meet UL94 V-0 rating and maintain RoHS compliance

The DF1-4P-2.5DS(05) from Hirose Electric Co Ltd meets all critical substitution criteria, making it a valid equivalent for the IL-4P-S3FP2 in applications where the specified parameters are required.

Parameter Comparison

Engineering Selection Recommendations

The IL-4P-S3FP2 is the primary choice for new designs due to its active production status and current availability of 818 units in inventory. This part maintains full RoHS compliance and meets UL94 V-0 flammability requirements.

The DF1-4P-2.5DS(05) serves as a qualified substitute when the IL-4P-S3FP2 becomes unavailable. This Hirose alternative maintains electrical and mechanical compatibility across all critical parameters. However, the DF1-4P-2.5DS(05) carries a Last Time Buy status, indicating limited future availability. The substitute exhibits minor dimensional variations in contact lengths and insulation height, which remain within acceptable tolerances for standard board-to-cable applications. The DF1-4P-2.5DS(05) provides specified operating temperature range (-30°C ~ 85°C), current rating (3A), and voltage rating (250V), offering additional performance documentation compared to the primary part.

Both parts maintain MSL 1 classification and are suitable for unlimited shelf life storage without special moisture control measures.

Frequently Asked Questions (FAQ)

Q: Can the DF1-4P-2.5DS(05) be used as a direct replacement for the IL-4P-S3FP2?

A: Yes, the DF1-4P-2.5DS(05) is a qualified substitute. Both connectors share identical pitch (2.50mm), position count (4), mounting style (through-hole right-angle), and contact configuration (male pin, square brass). Minor dimensional differences in contact length and insulation height do not affect functional compatibility in standard board-to-cable applications.

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

A: The primary differences are dimensional. The IL-4P-S3FP2 features longer mating contact length (0.236" vs 0.177") and greater insulation height (0.256" vs 0.236"). The DF1-4P-2.5DS(05) provides specified electrical ratings (3A, 250V) and operating temperature range (-30°C ~ 85°C), whereas the IL-4P-S3FP2 does not document these parameters. The DF1-4P-2.5DS(05) carries Last Time Buy status, indicating limited future procurement availability.

Q: Are there any compliance or certification concerns when substituting?

A: Both parts maintain UL94 V-0 flammability rating and RoHS compliance. The DF1-4P-2.5DS(05) carries ROHS3 certification, which supersedes the RoHS Compliant status of the IL-4P-S3FP2. Both parts have MSL 1 classification, requiring no special moisture control during storage or handling.

Q: What applications are these connectors suitable for?

A: These 4-position, 2.50mm pitch headers are designed for board-to-cable/wire connections requiring through-hole solder termination with friction lock retention. The shrouded 1-wall design provides basic polarization and mechanical protection.

Q: Should I consider the DF1-4P-2.5DS(05) for new designs?

A: The IL-4P-S3FP2 is recommended for new designs due to active production status. The DF1-4P-2.5DS(05) should be reserved for replacement or redesign scenarios where the primary part becomes unavailable, given its Last Time Buy status.