DF3-9S-2R28(05) Equivalent & Substitute Parts

Part Overview

The DF3-9S-2R28(05) is a 9-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, closed-end housing, and is classified as obsolete. Due to its obsolete status, identifying equivalent substitute parts is essential for ongoing system maintenance, repair, and component sourcing.

Substiute Parts

DF3-9S-2R28(05)

Hirose Electric Co LtdIn Stock: 1063DF3-9S-2R28(05) Datasheet

Current PartRFQ

DF3-9S-2C

Hirose Electric Co LtdIn Stock: 2070DF3-9S-2C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DF3-9S-2R28(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: 9-position configuration must be maintained
• Pitch Specification: 0.079" (2.00mm) pitch is mandatory for connector alignment and mating
• Connector Type & Contact Type: Receptacle with female socket contacts required
• Electrical Compliance: RoHS compliance status and MSL rating must be equivalent or superior

The DF3-9S-2C qualifies as a substitute based on these parameters. Both connectors share the same series (DF3), position count (9), pitch (2.00mm), connector type (receptacle), contact type (female socket), and compliance ratings. The primary difference lies in the termination method: the main part uses IDC termination, while the substitute uses crimp termination. This represents a functional substitution pathway where the housing and contact interface remain compatible within the DF3 series architecture.

Parameter Comparison

Engineering Selection Recommendations

The DF3-9S-2C is the designated substitute for the obsolete DF3-9S-2R28(05). Selection of this substitute is supported by the following factors:

• Active Product Status: The DF3-9S-2C maintains active production status, ensuring long-term availability and supply chain continuity
• Enhanced Compliance: ROHS3 compliance exceeds the RoHS compliance of the original part, meeting current regulatory requirements
• Series Continuity: Both connectors operate within the DF3 series framework, maintaining mechanical and electrical compatibility at the housing and contact interface level
• Equivalent MSL Rating: Identical MSL 1 rating ensures equivalent moisture sensitivity performance

The transition from IDC to crimp termination requires corresponding changes in cable preparation methodology. IDC termination uses insulation displacement technology, while crimp termination requires individual wire crimping into contacts. This substitution is valid when the application can accommodate the alternative termination approach.

Frequently Asked Questions (FAQ)

Q: Can the DF3-9S-2C directly replace the DF3-9S-2R28(05) in existing assemblies?

A: Mechanical and electrical compatibility is maintained at the connector interface level. However, the termination method differs: IDC versus crimp. Direct replacement requires that the cable assembly be re-terminated using crimp contacts compatible with the DF3-9S-2C housing.

Q: What is the significance of the pitch specification in substitution?

A: Pitch (0.079" or 2.00mm) defines the center-to-center spacing between contact positions. Both the main part and substitute maintain identical pitch, ensuring proper mating with corresponding plug connectors and maintaining signal integrity.

Q: Does the DF3-9S-2C include contacts?

A: No. The DF3-9S-2C is a housing-only component. Contacts must be sourced separately and crimped into the housing. The original DF3-9S-2R28(05) includes pre-installed IDC contacts.

Q: Are there compliance differences between these parts?

A: The DF3-9S-2C carries ROHS3 compliance, which supersedes the RoHS compliance of the original part. Both maintain MSL 1 rating. The substitute meets current regulatory standards.

Q: What connector types mate with the DF3-9S-2R28(05) and DF3-9S-2C?

A: Both receptacle connectors mate with DF3 series plug connectors featuring 9 positions and 2.00mm pitch. Mechanical compatibility is maintained across the DF3 series.