DF3-7S-2R26(05) Equivalent & Substitute Parts

Part Overview

The DF3-7S-2R26(05) is a 7-position rectangular receptacle connector manufactured by Hirose Electric Co Ltd, designed for discrete wire termination using Insulation Displacement Contact (IDC) technology with 26 AWG wire gauge. This connector features a tin contact finish and closed-end housing in black. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

DF3-7S-2R26(05)

Hirose Electric Co LtdIn Stock: 778DF3-7S-2R26(05) Datasheet

Current PartRFQ

DF3-7S-2C

Hirose Electric Co LtdIn Stock: 1419DF3-7S-2C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DF3-7S-2R26(05) is determined by the following critical parameters:

• Series Compatibility: Both parts must belong to the DF3 series to ensure mechanical and electrical interchangeability
• Position Count: Substitute must maintain 7 positions
• Pitch Specification: Substitute must match 0.079" (2.00mm) pitch for proper mating alignment
• Connector Configuration: Substitute must be a receptacle with female socket contacts
• Row Configuration: Substitute must maintain single-row layout
• Regulatory Compliance: Substitute must maintain RoHS compliance status

The DF3-7S-2C qualifies as a substitute based on these parameters. However, a critical distinction exists in termination methodology: the original part uses IDC (Insulation Displacement Contact) termination for discrete wires, while the substitute uses crimp termination and is supplied as a housing without contacts included.

Parameter Comparison

Engineering Selection Recommendations

The DF3-7S-2C is the manufacturer-recommended substitute for the obsolete DF3-7S-2R26(05). Both components share identical mechanical specifications (7 positions, 2.00mm pitch, single-row receptacle configuration) and maintain equivalent regulatory compliance status (RoHS compliant).

The primary functional difference is termination method: the original part integrates IDC termination for direct wire insertion, while the substitute is supplied as a housing requiring separate crimp contacts. This distinction requires evaluation based on application requirements. The substitute's active product status ensures ongoing availability and support from the manufacturer.

Both components maintain MSL rating 1 (unlimited moisture sensitivity) and are suitable for equivalent environmental conditions. The substitute provides documented operating temperature range (-55°C ~ 105°C), supporting thermal performance validation for applications requiring temperature specification.

Frequently Asked Questions (FAQ)

Q: Can DF3-7S-2C directly replace DF3-7S-2R26(05) in existing assemblies?

A: Mechanical and electrical compatibility is confirmed for the connector housings. However, termination methodology differs: the original uses IDC termination while the substitute requires crimp contacts. Direct replacement requires sourcing compatible crimp contacts separately and modifying termination procedures accordingly.

Q: What is the significance of "Contacts Not Included" for the DF3-7S-2C?

A: The DF3-7S-2C is supplied as a housing only. Crimp contacts must be procured separately and assembled into the housing. This modular approach allows flexibility in contact material and finish selection but requires additional assembly steps compared to the integrated IDC design of the original part.

Q: Are the pitch and position specifications identical between these parts?

A: Yes. Both components maintain 0.079" (2.00mm) pitch and 7-position configuration, ensuring mechanical interchangeability at the mating interface level.

Q: What is the difference between RoHS and ROHS3 compliance?

A: Both designations indicate RoHS compliance. ROHS3 represents the current regulatory iteration. Both parts meet equivalent environmental and material restriction requirements.

Q: Is the DF3-7S-2C suitable for new designs?

A: Yes. The DF3-7S-2C maintains active product status, ensuring manufacturer support and ongoing availability. It is appropriate for new design implementations requiring 7-position, 2.00mm pitch receptacle connectors with crimp termination.