IL-Z-7S-S125C3 Equivalent & Substitute Parts

Part Overview

The IL-Z-7S-S125C3 is a 7-position rectangular connector housing manufactured by JAE Electronics. This receptacle housing accepts female socket contacts with a 0.049" (1.25mm) pitch and is designed for free-hanging in-line mounting applications using crimp termination. The product is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

IL-Z-7S-S125C3

JAE ElectronicsIn Stock: 864IL-Z-7S-S125C3 Datasheet

Current PartRFQ

DF13-7S-1.25C

Hirose Electric Co LtdIn Stock: 500353DF13-7S-1.25C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IL-Z-7S-S125C3 is determined by strict equivalence across the following critical parameters:

• Connector type (receptacle housing)
• Contact type (female socket)
• Number of positions (7)
• Pitch specification (0.049" / 1.25mm)
• Row configuration (single row)
• Mounting style (free hanging in-line)
• Contact termination method (crimp)
• Insulation material compatibility (polyamide/nylon-based)

The DF13-7S-1.25C from Hirose Electric Co Ltd meets all these criteria and qualifies as a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The DF13-7S-1.25C is the qualified substitute for the obsolete IL-Z-7S-S125C3. Both housings share identical mechanical and electrical specifications for the critical parameters governing connector interchangeability: 7-position, 1.25mm pitch, single-row receptacle configuration with crimp termination.

The DF13-7S-1.25C offers the advantage of active product status and ROHS3 compliance, supporting long-term supply chain stability and regulatory alignment. The operating temperature range of the Hirose part (-35°C ~ 85°C) exceeds the JAE specification (-40°C ~ 70°C), providing broader environmental capability. Both parts maintain identical moisture sensitivity classification (MSL 1).

Selection of the DF13-7S-1.25C eliminates obsolescence risk while maintaining full mechanical and electrical compatibility with existing contact sets and mating plug assemblies designed for the 1.25mm pitch standard.

Frequently Asked Questions (FAQ)

Q: Can the DF13-7S-1.25C directly replace the IL-Z-7S-S125C3 in existing assemblies?

A: Yes. Both housings are mechanically and electrically identical across all critical parameters: 7 positions, 1.25mm pitch, single row, crimp termination, and free-hanging in-line mounting. Existing contact sets and mating plugs designed for the IL-Z series will function identically with the DF13 housing.

Q: What is the significance of the product status difference?

A: The IL-Z-7S-S125C3 is classified as obsolete, indicating JAE Electronics has discontinued production and support. The DF13-7S-1.25C maintains active status with Hirose, ensuring ongoing availability, technical support, and supply chain continuity.

Q: Are there compliance differences between these parts?

A: The DF13-7S-1.25C is ROHS3 compliant and REACH unaffected. The IL-Z-7S-S125C3 compliance status is not specified in available documentation. Both parts carry identical ECCN and HTSUS classifications and maintain MSL 1 rating.

Q: Does the wider operating temperature range of the DF13 part affect compatibility?

A: No. The DF13-7S-1.25C operating range (-35°C ~ 85°C) encompasses the IL-Z-7S-S125C3 range (-40°C ~ 70°C). The substitute part provides equal or superior performance across all temperature conditions specified for the original part.

Q: Are contacts included with either housing?

A: No. Both the IL-Z-7S-S125C3 and DF13-7S-1.25C are housings only. Contacts must be sourced separately and crimped into the housing according to manufacturer specifications.