DF3-4S-2DSA(50) Equivalent & Substitute Parts

Part Overview

The DF3-4S-2DSA(50) 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 mating. This connector features gold-plated mating contacts, through-hole solder termination, and friction lock fastening. The part is currently classified as obsolete, which necessitates identification of active equivalent alternatives to maintain supply chain continuity for new designs and ongoing production support.

Substiute Parts

DF3-4S-2DSA(50)

Hirose Electric Co LtdIn Stock: 989DF3-4S-2DSA(50) Datasheet

Current PartRFQ

DF3-4S-2DSA(55)

Hirose Electric Co LtdIn Stock: 5204DF3-4S-2DSA(55) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The DF3-4S-2DSA(55) qualifies as a direct substitute for the DF3-4S-2DSA(50) based on the following critical parameters that determine functional equivalence:

• Connector Type & Configuration: Both are 4-position receptacles with identical pitch (0.079" / 2.00mm)
• Electrical Ratings: Identical current (3A) and voltage (30VAC) specifications
• Mechanical Interface: Matching through-hole mounting, solder termination, and friction lock fastening
• Contact System: Identical gold-plated mating contacts with phosphor bronze material
• Environmental Specifications: Matching operating temperature range (-30°C ~ 85°C) and flammability rating (UL94 V-0)
• Series Compatibility: Both belong to the DF3 series from Hirose Electric Co Ltd

The primary distinction is product status: DF3-4S-2DSA(50) is obsolete, while DF3-4S-2DSA(55) is active with significantly higher inventory availability (5181 pcs vs. 927 pcs).

Parameter Comparison

Engineering Selection Recommendations

The DF3-4S-2DSA(55) is the appropriate selection for applications currently using or specifying the DF3-4S-2DSA(50). All functional and electrical parameters are identical, ensuring direct mechanical and electrical compatibility.

Compliance Consideration: The DF3-4S-2DSA(55) achieves ROHS3 compliance, whereas the DF3-4S-2DSA(50) is non-compliant. For new designs or applications subject to RoHS regulations, the DF3-4S-2DSA(55) is the required choice. For legacy systems or applications without RoHS requirements, both parts remain functionally equivalent.

Supply Chain Status: The DF3-4S-2DSA(55) is actively manufactured with substantially higher inventory availability (5181 pcs), providing superior supply chain reliability compared to the obsolete DF3-4S-2DSA(50) (927 pcs remaining stock).

Frequently Asked Questions (FAQ)

Q: Can DF3-4S-2DSA(55) be used as a direct replacement for DF3-4S-2DSA(50)?

A: Yes. Both connectors share identical electrical ratings (3A, 30VAC), mechanical configuration (4-position, 0.079" pitch, through-hole), contact system (gold-plated phosphor bronze), and environmental specifications (-30°C ~ 85°C, UL94 V-0). They are functionally equivalent and mechanically interchangeable.

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

A: The primary differences are product status and regulatory compliance. DF3-4S-2DSA(50) is obsolete with limited remaining inventory. DF3-4S-2DSA(55) is an active production part with ROHS3 compliance and significantly higher stock availability. The packaging for DF3-4S-2DSA(55) is specified as Tube.

Q: Are there any compatibility issues when switching from DF3-4S-2DSA(50) to DF3-4S-2DSA(55)?

A: No compatibility issues exist. The connectors are mechanically and electrically identical in all critical parameters. PCB footprints, mating interfaces, and electrical performance remain unchanged.

Q: Which part should be specified for new designs?

A: DF3-4S-2DSA(55) should be specified for all new designs. It is actively manufactured, offers superior supply chain availability, and meets current RoHS3 compliance requirements.

Q: Is RoHS compliance a functional difference?

A: RoHS compliance is a regulatory and material composition specification, not a functional difference. Both parts operate identically. However, applications subject to RoHS regulations must use DF3-4S-2DSA(55).