DF57-4S-1.2C Equivalent & Substitute Parts

Part Overview

The DF57-4S-1.2C is a 4-position rectangular connector housing manufactured by Hirose Electric Co Ltd, designed for receptacle applications with a 1.20mm pitch. This component is classified as obsolete, which necessitates identification of active equivalent parts to maintain supply chain continuity and support ongoing production requirements. The connector features a swing lock fastening mechanism and is suitable for free hanging in-line mounting applications.

Substiute Parts

DF57-4S-1.2C

Hirose Electric Co LtdIn Stock: 104127DF57-4S-1.2C Datasheet

Current PartRFQ

DF57H-4S-1.2C

Hirose Electric Co LtdIn Stock: 10982DF57H-4S-1.2C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF57-4S-1.2C is determined by strict equivalence across the following critical parameters:

• Connector Type & Contact Configuration: Receptacle housing with female socket contacts
• Position Count & Pitch: 4 positions at 0.047" (1.20mm) spacing
• Mounting & Termination: Free hanging in-line mounting with crimp termination
• Fastening Mechanism: Swing lock fastening type
• Physical Characteristics: White color, single row configuration
• Environmental Rating: MSL 1 (Unlimited moisture sensitivity level)

The DF57H-4S-1.2C qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. The primary distinction is product status: DF57H-4S-1.2C is active and available, whereas DF57-4S-1.2C is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The DF57H-4S-1.2C is the direct equivalent for the obsolete DF57-4S-1.2C. Selection of the DF57H-4S-1.2C is supported by:

• Product Status: Active manufacturing status ensures ongoing availability and supply chain reliability
• Regulatory Compliance: ROHS3 compliance and REACH unaffected status meet current environmental and regulatory requirements
• Functional Equivalence: All electrical and mechanical parameters match the original specification
• Manufacturer Continuity: Both parts are manufactured by Hirose Electric Co Ltd, ensuring consistent quality and design standards

Frequently Asked Questions (FAQ)

Q: Can DF57H-4S-1.2C be used as a direct replacement for DF57-4S-1.2C?

A: Yes. The DF57H-4S-1.2C is functionally equivalent across all critical parameters: 4-position receptacle housing, 1.20mm pitch, swing lock fastening, crimp termination, and free hanging in-line mounting. The primary difference is product status; DF57H-4S-1.2C is active and currently manufactured.

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

A: The DF57-4S-1.2C is obsolete, meaning it is no longer manufactured or supported by Hirose Electric Co Ltd. The DF57H-4S-1.2C is active, ensuring continued availability, technical support, and compliance with current regulatory standards.

Q: Are there packaging differences between these parts?

A: The DF57-4S-1.2C packaging is not specified in available documentation. The DF57H-4S-1.2C is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Do both parts have the same environmental ratings?

A: Yes. Both parts have MSL 1 (Unlimited) moisture sensitivity level ratings. The DF57H-4S-1.2C additionally carries ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements.

Q: Are contacts included with these housings?

A: No. Both the DF57-4S-1.2C and DF57H-4S-1.2C are housings only. Contacts must be sourced separately and crimped into the housing.