IL-Z-2S-S125C3 Equivalent & Substitute Parts

Part Overview

The IL-Z-2S-S125C3 is a 2-position rectangular connector receptacle housing manufactured by JAE Electronics with a 1.25mm pitch. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity. The connector features a friction lock fastening mechanism and is designed for crimp-style female socket termination in free-hanging inline applications.

Substiute Parts

IL-Z-2S-S125C3

JAE ElectronicsIn Stock: 4394IL-Z-2S-S125C3 Datasheet

Current PartRFQ

DF13-2S-1.25C

Hirose Electric Co LtdIn Stock: 500149DF13-2S-1.25C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IL-Z-2S-S125C3 is determined by strict alignment of the following critical parameters:

• Connector type (receptacle housing)
• Contact type (female socket)
• Number of positions (2)
• Pitch specification (1.25mm)
• Number of rows (1)
• Mounting configuration (free hanging inline)
• Contact termination method (crimp)

The DF13-2S-1.25C from Hirose Electric Co Ltd satisfies all mandatory substitution criteria. Both components share identical functional specifications for connector type, position count, pitch, row configuration, mounting style, and termination method. This alignment ensures mechanical and electrical compatibility in applications originally designed for the IL-Z-2S-S125C3.

Parameter Comparison

Engineering Selection Recommendations

The DF13-2S-1.25C is the qualified substitute for the obsolete IL-Z-2S-S125C3. Selection is based on the following factors:

• All critical functional parameters align between the two components
• The DF13-2S-1.25C maintains active product status with established supply chain availability
• ROHS3 compliance of the substitute part supports modern regulatory requirements
• Operating temperature range of the substitute (-35°C ~ 85°C) encompasses the original specification (-40°C ~ 70°C) for the majority of applications
• Both components carry identical Moisture Sensitivity Level (MSL 1), ensuring equivalent handling and storage requirements
• Crimp termination compatibility ensures existing contact and assembly processes remain valid

Frequently Asked Questions (FAQ)

Q: Can the DF13-2S-1.25C directly replace the IL-Z-2S-S125C3 in existing designs?

A: Yes. Both components share identical specifications for connector type, position count, pitch, row configuration, mounting style, and termination method. Mechanical and electrical compatibility is assured.

Q: What is the significance of the operating temperature difference?

A: The IL-Z-2S-S125C3 operates from -40°C to 70°C, while the DF13-2S-1.25C operates from -35°C to 85°C. The substitute part covers the original range for most applications. Applications requiring operation below -35°C require specific evaluation.

Q: Are the insulation materials functionally equivalent?

A: Both use polyamide-based nylon insulation. The IL-Z-2S-S125C3 specifies glass-filled PA66, while the DF13-2S-1.25C uses standard PA nylon. Both materials meet the mechanical and electrical requirements for this connector class.

Q: What is the impact of the DF13-2S-1.25C being ROHS3 compliant?

A: ROHS3 compliance indicates the substitute part meets current environmental and regulatory standards. This is advantageous for new procurement and supports compliance with modern supply chain requirements.

Q: Are existing crimp contacts compatible with the substitute housing?

A: Compatibility depends on the specific contact design. Both housings accept crimp-style female socket contacts at 1.25mm pitch. Verify contact part numbers with the respective manufacturers to confirm mechanical fit and electrical performance.

Q: What is the packaging difference between these parts?

A: The IL-Z-2S-S125C3 packaging is not specified. The DF13-2S-1.25C is supplied in bulk packaging. Confirm packaging requirements with your procurement team.