DF3-9S-2DSA(25) Equivalent & Substitute Parts

Part Overview

The DF3-9S-2DSA(25) is a 9-position receptacle connector from Hirose Electric's DF3 series, designed for board-to-board or cable applications with 0.079" (2.00mm) pitch mating. This connector features tin contact finish on mating surfaces and is rated for 3A at 30VAC with through-hole solder termination. The part is currently in Last Time Buy status, making identification of equivalent alternatives essential for ongoing design support and procurement planning.

Substiute Parts

DF3-9S-2DSA(25)

Hirose Electric Co LtdIn Stock: 952DF3-9S-2DSA(25) Datasheet

Current PartRFQ

DF3-9S-2DSA(55)

Hirose Electric Co LtdIn Stock: 758DF3-9S-2DSA(55) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DF3-9S-2DSA(25) is determined by the following critical parameters:

• Connector type and contact configuration (9-position receptacle, female socket)
• Mating pitch (0.079" / 2.00mm)
• Mounting method (through-hole solder termination)
• Electrical ratings (3A, 30VAC minimum)
• Operating temperature range (-30°C ~ 85°C minimum)
• Compliance certifications (UL94 V-0, RoHS)
• Series compatibility (DF3 series)

The DF3-9S-2DSA(55) qualifies as a direct substitute based on identical mechanical and electrical specifications. The primary difference is the contact finish on mating surfaces: tin versus gold plating. Both parts maintain the same pitch, position count, mounting configuration, and electrical performance within the specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

The DF3-9S-2DSA(55) is the manufacturer-recommended substitute for the DF3-9S-2DSA(25). Both connectors maintain identical mechanical compatibility, electrical performance, and compliance certifications. The DF3-9S-2DSA(55) is currently in Active product status with 697 units in stock, compared to the Last Time Buy status of the original part with 869 units available.

Selection between these parts should be based on application requirements regarding contact finish. The tin finish of the DF3-9S-2DSA(25) and the gold finish of the DF3-9S-2DSA(55) both support the specified electrical and environmental operating conditions. Both parts are RoHS compliant and rated for UL94 V-0 flammability performance.

Frequently Asked Questions (FAQ)

Q: Are DF3-9S-2DSA(25) and DF3-9S-2DSA(55) mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including 9-position configuration, 0.079" (2.00mm) pitch, through-hole mounting, and insulation dimensions. They are directly interchangeable in board-to-board and cable applications.

Q: What is the functional difference between tin and gold contact finishes?

A: Contact finish affects surface properties. Tin finish is specified for the DF3-9S-2DSA(25), while gold plating is specified for the DF3-9S-2DSA(55). Both finishes support the rated electrical performance of 3A at 30VAC within the -30°C to 85°C operating range.

Q: Can I use DF3-9S-2DSA(55) as a direct replacement for DF3-9S-2DSA(25)?

A: Yes. The DF3-9S-2DSA(55) is the manufacturer-recommended substitute. Electrical ratings, mechanical dimensions, mounting configuration, and compliance certifications are identical between the two parts.

Q: Why is DF3-9S-2DSA(25) marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer is discontinuing this part number. The DF3-9S-2DSA(55) remains in Active status and is available for new designs and ongoing procurement.

Q: Are both parts RoHS compliant?

A: Yes. Both DF3-9S-2DSA(25) and DF3-9S-2DSA(55) are RoHS compliant with UL94 V-0 flammability rating and MSL 1 (Unlimited) moisture sensitivity level.