DF3-4S-2DSA(20) Equivalent & Substitute Parts

Part Overview

The DF3-4S-2DSA(20) is a 4-position receptacle connector manufactured by Hirose Electric Co Ltd, designed for board-to-board or cable applications with 0.079" (2.00mm) pitch spacing. This connector features through-hole solder termination, friction lock fastening, and tin-plated contacts rated for 3A at 30VAC. The part is currently classified as obsolete, making identification of suitable substitutes essential for ongoing design support and procurement planning.

Substiute Parts

DF3-4S-2DSA(20)

Hirose Electric Co LtdIn Stock: 1058DF3-4S-2DSA(20) Datasheet

Current PartRFQ

DF3-4S-2DSA(25)

Hirose Electric Co LtdIn Stock: 17381DF3-4S-2DSA(25) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The DF3-4S-2DSA(25) qualifies as a direct substitute based on identical electrical and mechanical parameters. Substitution is valid when the following criteria are met:

• Connector type: Receptacle
• Number of positions: 4
• Pitch spacing: 0.079" (2.00mm)
• Mounting configuration: Through hole
• Termination method: Solder
• Current rating: 3A minimum
• Voltage rating: 30VAC minimum
• Operating temperature range: -30°C ~ 85°C
• Contact finish: Tin
• Insulation material: Polyamide (PA), Nylon
• Fastening mechanism: Friction lock

The DF3-4S-2DSA(25) maintains all these parameters identically to the main part, establishing full electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The DF3-4S-2DSA(25) is the appropriate substitute for the obsolete DF3-4S-2DSA(20). Both parts share identical electrical specifications, mechanical dimensions, and contact characteristics. The primary distinction is product status and regulatory compliance: the DF3-4S-2DSA(25) is active in production and ROHS3 compliant, whereas the DF3-4S-2DSA(20) is obsolete and RoHS non-compliant. For new designs or ongoing procurement, the DF3-4S-2DSA(25) is the specified replacement. The DF3-4S-2DSA(25) is available in tube packaging with significantly higher inventory levels (17,329 pcs vs. 973 pcs), ensuring supply continuity.

Frequently Asked Questions (FAQ)

Q: Are the DF3-4S-2DSA(20) and DF3-4S-2DSA(25) electrically interchangeable?

A: Yes. Both connectors have identical current ratings (3A), voltage ratings (30VAC), operating temperature ranges (-30°C ~ 85°C), and contact materials (phosphor bronze with tin finish).

Q: Are the mechanical dimensions identical?

A: Yes. Both parts share the same pitch spacing (0.079" / 2.00mm), insulation height (0.232" / 5.90mm), contact length (0.118" / 3.00mm), and mated stacking heights (6.6mm, 7.5mm).

Q: What is the difference between these two part numbers?

A: The primary differences are product status (obsolete vs. active), RoHS compliance (non-compliant vs. ROHS3 compliant), and packaging format. The DF3-4S-2DSA(25) is the current production equivalent.

Q: Can I use the DF3-4S-2DSA(25) in place of the DF3-4S-2DSA(20) in existing designs?

A: Yes. The DF3-4S-2DSA(25) maintains full compatibility with applications designed for the DF3-4S-2DSA(20) due to identical electrical and mechanical specifications.

Q: Why is the DF3-4S-2DSA(20) marked as obsolete?

A: The DF3-4S-2DSA(20) has been superseded by the DF3-4S-2DSA(25) in Hirose's product line. The DF3-4S-2DSA(25) offers improved regulatory compliance (ROHS3) and remains in active production.

Q: Are there any contact finish differences?

A: Both parts feature tin-plated contacts on the mating surface. The DF3-4S-2DSA(25) specifies contact finish thickness (78.7µin / 2.00µm), whereas this specification is not provided for the DF3-4S-2DSA(20).