05HR-4K Equivalent & Substitute Parts

Part Overview

The 05HR-4K is a 5-position rectangular receptacle connector manufactured by JST Sales America Inc., designed for IDC (Insulation Displacement Connector) termination with 24 AWG discrete wiring. This connector features tin-lead contact finish and detent lock fastening, suitable for free-hanging in-line applications. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and component sourcing.

Substiute Parts

05HR-4K

JST Sales America Inc.In Stock: 97105HR-4K Datasheet

Current PartRFQ

05HR-6S

JST Sales America Inc.In Stock: 76105HR-6S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the 05HR-4K is determined by the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Receptacle
• Contact Type: Female Socket
• Number of Positions: 5
• Pitch: 0.098" (2.50mm)
• Number of Rows: 1
• Mounting Type: Free Hanging (In-Line)
• Fastening Type: Detent Lock
• Cable Termination: IDC
• Wire Type: Discrete
• Features: Closed End
• Series: HR

Allowable Variation Parameters:

• Wire Gauge: 24 AWG to 26 AWG (within IDC termination capability)
• Contact Finish: Tin-Lead to Tin (both acceptable for IDC applications)
• Color: Black to Natural (cosmetic variation)
• Product Status: Obsolete to Active (functional equivalence maintained)

The 05HR-6S qualifies as a substitute based on matching all mandatory parameters while varying only in wire gauge (26 AWG vs. 24 AWG), contact finish (Tin vs. Tin-Lead), and color (Natural vs. Black).

Parameter Comparison

Engineering Selection Recommendations

The 05HR-6S serves as a functional equivalent to the obsolete 05HR-4K. Both connectors maintain identical mechanical and electrical interface specifications within the HR series, including pitch, position count, mounting configuration, and fastening mechanism.

The primary distinction is wire gauge compatibility: the 05HR-6S accommodates 26 AWG wire versus the 05HR-4K's 24 AWG specification. This variation remains within acceptable IDC termination parameters for the HR series receptacle design.

Both parts maintain RoHS non-compliant status and MSL 1 classification, ensuring consistent environmental handling and storage requirements across the substitution.

The 05HR-6S is currently in active production status, providing supply continuity for applications previously served by the obsolete 05HR-4K.

Frequently Asked Questions (FAQ)

Q: Can the 05HR-6S directly replace the 05HR-4K in existing assemblies?

A: Yes. Both connectors share identical pitch (0.098" / 2.50mm), position count (5), row configuration (1), mounting type (free hanging in-line), and fastening mechanism (detent lock). The HR series receptacle interface is mechanically and electrically compatible between these part numbers.

Q: What is the significance of the wire gauge difference between 24 AWG and 26 AWG?

A: Wire gauge affects current-carrying capacity and physical conductor diameter. The 05HR-6S's 26 AWG specification represents a smaller conductor cross-section than the 05HR-4K's 24 AWG. Both gauges are supported by the IDC termination method used in the HR series. Application-specific current requirements must be evaluated to confirm 26 AWG suitability.

Q: Are there compliance differences between these parts?

A: Both the 05HR-4K and 05HR-6S are RoHS non-compliant and carry MSL 1 (Unlimited) moisture sensitivity classification. No compliance differentiation exists between these parts.

Q: Why is the 05HR-4K obsolete while the 05HR-6S remains active?

A: Product status reflects manufacturing availability and market demand. The 05HR-6S remains in active production, making it the preferred selection for new designs and ongoing component sourcing.

Q: Does contact finish (Tin-Lead vs. Tin) affect substitution compatibility?

A: Contact finish affects solderability and corrosion resistance characteristics. Both tin-lead and tin finishes are acceptable for IDC-terminated connectors in the HR series. Application environment and assembly process requirements should guide finish selection.