DF3-4S-2R28(05) Equivalent & Substitute Parts

Part Overview

The DF3-4S-2R28(05) is a 4-position rectangular receptacle connector manufactured by Hirose Electric Co Ltd, designed for IDC (Insulation Displacement Contact) termination with 28 AWG discrete wiring. This connector features tin contact finish and closed-end housing in black. The product is currently obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations where legacy compatibility is required.

Substiute Parts

DF3-4S-2R28(05)

Hirose Electric Co LtdIn Stock: 856DF3-4S-2R28(05) Datasheet

Current PartRFQ

DF3-4S-2C

Hirose Electric Co LtdIn Stock: 35480DF3-4S-2C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF3-4S-2R28(05) is determined by the following critical parameters that must remain constant:

• Series Compatibility: DF3 series maintains mechanical and electrical interchangeability
• Position Count: 4-position configuration
• Pitch Specification: 0.079" (2.00mm) center-to-center spacing
• Connector Type: Receptacle with female socket contacts
• Mounting Configuration: Free hanging (in-line) orientation
• Housing Material: Polyamide (PA), Nylon construction
• Color: Black housing

The primary substitute, DF3-4S-2C, shares all critical mechanical and electrical parameters with the main part. The key distinction is the termination method: the DF3-4S-2C uses crimp termination rather than IDC termination, and is supplied as a housing-only component without pre-installed contacts. This substitution is valid when the application can accommodate crimp-terminated contacts instead of IDC termination.

Parameter Comparison

Engineering Selection Recommendations

The DF3-4S-2C is the designated substitute for the obsolete DF3-4S-2R28(05). Selection of this substitute is supported by:

• Product Status: The DF3-4S-2C maintains active production status, ensuring long-term availability and supply chain continuity
• Regulatory Compliance: Both components meet RoHS requirements; the substitute achieves ROHS3 compliance, representing current regulatory standards
• Mechanical Compatibility: Identical pitch, position count, and mounting configuration ensure physical interchangeability within connector interfaces
• Electrical Compatibility: Both components utilize identical female socket contact type and series specifications

The primary consideration for substitution is the termination method transition from IDC to crimp. This requires corresponding changes to cable preparation and assembly procedures. The DF3-4S-2C is supplied as a housing-only component; contacts must be sourced and installed separately using crimp termination techniques appropriate for the specified wire gauge.

Frequently Asked Questions (FAQ)

Q: Can the DF3-4S-2C directly replace the DF3-4S-2R28(05) without modification?

A: The DF3-4S-2C is mechanically and electrically compatible with the DF3-4S-2R28(05) at the connector interface level. However, cable termination methodology differs: the original part uses IDC termination, while the substitute requires crimp termination. Cable assembly procedures must be updated accordingly.

Q: What is the difference between IDC and crimp termination in this application?

A: IDC (Insulation Displacement Contact) termination pierces the wire insulation without stripping, while crimp termination requires manual wire stripping and mechanical crimping of contacts into the housing. Both methods achieve equivalent electrical and mechanical performance when executed to specification.

Q: Is the DF3-4S-2C supplied with contacts included?

A: No. The DF3-4S-2C is supplied as a housing-only component. Contacts must be sourced separately and installed using crimp termination techniques. Ensure selected contacts are compatible with the DF3 series and 28 AWG wire gauge.

Q: Are there any operating temperature differences between the main part and substitute?

A: The DF3-4S-2C specifies an operating temperature range of -55°C to 105°C. This range is standard for the DF3 series and supports equivalent thermal performance in typical applications.

Q: What is the inventory status of the substitute part?

A: The DF3-4S-2C is in active production with 35,400 pieces available in new original stock, providing reliable supply availability for production and maintenance requirements.