DF57-3P-1.2V(21) Equivalent & Substitute Parts

Part Overview

The DF57-3P-1.2V(21) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for surface mount applications with 3 positions at 1.20mm pitch. This component is classified as obsolete, which necessitates identification of active equivalent parts to ensure design continuity and procurement availability. The DF57H-3P-1.2V(21) serves as the direct active substitute, maintaining functional compatibility while offering improved product lifecycle status.

Substiute Parts

DF57-3P-1.2V(21)

Hirose Electric Co LtdIn Stock: 5614DF57-3P-1.2V(21) Datasheet

Current PartRFQ

DF57H-3P-1.2V(21)

Hirose Electric Co LtdIn Stock: 9418DF57H-3P-1.2V(21) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The DF57H-3P-1.2V(21) qualifies as a direct substitute based on the following critical parameters:

• Connector Type & Contact Configuration: Both parts are headers with male blade contacts
• Position Count & Pitch: Identical 3-position configuration at 0.047" (1.20mm) mating pitch
• Mounting & Termination: Both are surface mount with solder termination
• Physical Dimensions: Matching insulation height of 0.055" (1.40mm) and rectangular contact shape
• Material Specifications: Identical brass contact material and Liquid Crystal Polymer insulation
• Environmental Ratings: Matching operating temperature range (-35°C ~ 85°C) and UL94 V-0 flammability rating
• Mechanical Features: Both incorporate swing lock fastening and solder retention

The substitution is valid across all specified electrical and mechanical parameters. The primary distinction is product lifecycle status: DF57-3P-1.2V(21) is obsolete while DF57H-3P-1.2V(21) is active.

Parameter Comparison

Engineering Selection Recommendations

The DF57H-3P-1.2V(21) is the appropriate selection for new designs and component replacement applications. This part maintains full functional and mechanical compatibility with the obsolete DF57-3P-1.2V(21) while offering the following advantages:

• Active Product Status: Ensures long-term availability and supply chain continuity
• RoHS Compliance: The DF57H-3P-1.2V(21) is explicitly RoHS compliant, meeting modern regulatory requirements
• Standardized Packaging: Available in Cut Tape and Digi-Reel formats, supporting automated assembly processes
• Identical Electrical & Mechanical Specifications: All critical parameters remain unchanged, eliminating redesign requirements

For existing designs currently using DF57-3P-1.2V(21), direct substitution with DF57H-3P-1.2V(21) requires no circuit modifications or PCB layout changes.

Frequently Asked Questions (FAQ)

Q: Can DF57H-3P-1.2V(21) be used as a direct replacement for DF57-3P-1.2V(21)?

A: Yes. Both parts share identical connector type, contact configuration, pitch, mounting method, and physical dimensions. All electrical and mechanical parameters are equivalent.

Q: What is the primary reason to transition from DF57-3P-1.2V(21) to DF57H-3P-1.2V(21)?

A: The DF57-3P-1.2V(21) is obsolete, creating procurement and supply chain risk. The DF57H-3P-1.2V(21) is an active product with confirmed availability and long-term support.

Q: Are there any design modifications required when switching to DF57H-3P-1.2V(21)?

A: No design modifications are necessary. The substitute part maintains identical footprint, pitch, and functional specifications. PCB layouts and mating connectors remain compatible.

Q: What packaging options are available for DF57H-3P-1.2V(21)?

A: The DF57H-3P-1.2V(21) is available in Cut Tape (CT) and Digi-Reel packaging formats, supporting both manual and automated assembly processes.

Q: Does DF57H-3P-1.2V(21) meet RoHS requirements?

A: Yes, DF57H-3P-1.2V(21) is RoHS compliant. The original DF57-3P-1.2V(21) RoHS status was not specified in available documentation.

Q: Are the operating temperature ranges identical?

A: Yes. Both parts operate across the same temperature range of -35°C to 85°C, with identical UL94 V-0 flammability ratings.