DF1B-R26FA Equivalent & Substitute Parts

Part Overview

The DF1B-R26FA is a rectangular connector socket contact manufactured by Hirose Electric Co Ltd, designed for 26 AWG IDC (Insulation Displacement Contact) termination with gold plating. This component is classified as obsolete, indicating it is no longer in active production. The primary reason for identifying substitute parts is to ensure design continuity and procurement availability for applications currently using this connector in production or maintenance scenarios.

Substiute Parts

DF1B-R26FA

Hirose Electric Co LtdIn Stock: 968DF1B-R26FA Datasheet

Current PartRFQ

DF1B-R26F

Hirose Electric Co LtdIn Stock: 10456DF1B-R26F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DF1B-R26FA is determined by the following critical parameters that must remain constant:

• Series: DF1B (ensures mechanical and electrical compatibility within the connector family)
• Pin or Socket: Socket (functional role within the assembly)
• Contact Termination: IDC (connection method compatibility)
• Wire Gauge: 26 AWG (electrical and mechanical fit requirements)

The DF1B-R26F qualifies as a direct substitute because it maintains all four critical parameters. The primary difference is the contact finish material (Tin instead of Gold), which does not affect the core functional compatibility for IDC socket contact applications. Additionally, the DF1B-R26F carries an active product status (Last Time Buy) with significantly higher inventory availability, making it a viable alternative for procurement.

Parameter Comparison

Engineering Selection Recommendations

The DF1B-R26F is the qualified substitute for the DF1B-R26FA based on the following engineering criteria:

Functional Compatibility: Both parts maintain identical series designation, socket configuration, IDC termination method, and 26 AWG wire gauge specification. These parameters ensure mechanical and electrical interchangeability within the DF1B connector family.

Compliance Advantage: The DF1B-R26F achieves RoHS compliance, whereas the DF1B-R26FA is RoHS non-compliant. For applications subject to RoHS regulations or future compliance requirements, the substitute part provides regulatory alignment.

Product Lifecycle Status: The DF1B-R26FA is obsolete with limited inventory (896 units). The DF1B-R26F carries Last Time Buy status with substantially higher availability (10436 units), reducing procurement risk and lead time uncertainty.

Contact Finish Consideration: The transition from gold to tin plating represents the primary material difference. Both finishes are suitable for IDC socket contact applications and maintain equivalent electrical performance characteristics within the specified wire gauge and termination method.

Frequently Asked Questions (FAQ)

Q: Can DF1B-R26F directly replace DF1B-R26FA in existing assemblies?

A: Yes. Both parts share identical series, socket type, IDC termination, and 26 AWG wire gauge specifications. The contact finish difference (tin vs. gold) does not affect functional compatibility for IDC socket contact applications.

Q: What is the significance of the contact finish change from gold to tin?

A: Contact finish affects corrosion resistance and long-term reliability in specific environmental conditions. Both gold and tin finishes are standard for IDC socket contacts. Selection depends on application-specific environmental requirements and cost considerations.

Q: Why is the DF1B-R26FA listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Hirose Electric Co Ltd. The DF1B-R26F represents the current production alternative within the same series.

Q: Does the RoHS compliance difference impact substitution?

A: RoHS compliance is a regulatory and supply chain consideration rather than a functional one. The DF1B-R26F's RoHS compliance status makes it preferable for applications subject to RoHS regulations or for long-term supply chain sustainability.

Q: What packaging format is the DF1B-R26F supplied in?

A: The DF1B-R26F is supplied in Cut Tape (CT) packaging. Confirm packaging requirements for your procurement and assembly processes.

Q: Are there inventory implications for selecting the substitute?

A: The DF1B-R26F has significantly higher inventory availability (10436 units vs. 896 units for the main part), reducing procurement lead time and supply chain risk.