DF1B-2P-2.5DS Equivalent & Substitute Parts

Part Overview

The DF1B-2P-2.5DS is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole, right-angle board-to-cable/wire applications with 2 positions at 2.5mm pitch. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. Active alternatives from Hirose and cross-manufacturer sources provide functional equivalence while offering improved product status and compliance certifications.

Substiute Parts

DF1B-2P-2.5DS

Hirose Electric Co LtdIn Stock: 781DF1B-2P-2.5DS Datasheet

Current PartRFQ

DF1BZ-2P-2.5DS

Hirose Electric Co LtdIn Stock: 13523DF1BZ-2P-2.5DS Datasheet

DirectRFQ

DF1B-2P-2.5DS(01)

Hirose Electric Co LtdIn Stock: 6924DF1B-2P-2.5DS(01) Datasheet

MFR RecommendedRFQ

5-104361-1

TE Connectivity AMP ConnectorsIn Stock: 155245-104361-1 Datasheet

MFR RecommendedRFQ

S2B-XH-A-1

JST Sales America Inc.In Stock: 52492S2B-XH-A-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence in the following critical parameters: connector type (header), contact type (male pin), pitch (2.5mm or 2.54mm), number of positions (2), number of rows (1), mounting type (through hole, right angle), shrouding (4-wall), and termination method (solder). All substitute parts listed maintain these core electrical and mechanical characteristics.

Direct Hirose Series Equivalents (DF1BZ-2P-2.5DS and DF1B-2P-2.5DS(01)) preserve identical pitch, position count, and form factor while offering active product status and RoHS3 compliance.

Cross-Manufacturer Alternatives (5-104361-1 from TE Connectivity and S2B-XH-A-1 from JST) provide functional equivalence with minor pitch tolerance (2.54mm vs 2.5mm) and alternative fastening mechanisms, suitable for applications where mechanical interchangeability is acceptable.

Parameter Comparison

Engineering Selection Recommendations

DF1BZ-2P-2.5DS is the primary direct substitute within the Hirose DF1B series. It maintains identical electrical and mechanical specifications with the exception of voltage rating (150V vs 250V). This part offers active product status and ROHS3 compliance. Selection is appropriate for applications operating at or below 150V.

DF1B-2P-2.5DS(01) is the manufacturer-recommended equivalent, preserving the 250V voltage rating and push-pull fastening mechanism of the original part. Contact finish differs (gold vs tin), providing enhanced corrosion resistance. ROHS3 compliance and active status make this the preferred choice for new designs requiring 250V operation.

5-104361-1 (TE Connectivity) provides cross-manufacturer equivalence with extended operating temperature range (-65°C to 105°C) and specified 3A current rating. Pitch tolerance is 2.54mm versus 2.5mm, requiring mechanical compatibility verification. Fastening mechanism differs (latch holder vs push-pull). Selection is appropriate for applications requiring wider temperature operation and higher current capacity.

S2B-XH-A-1 (JST) maintains 2.5mm pitch and 250V rating with active product status and ROHS3 compliance. Operating temperature range is narrower (-25°C to 85°C). Fastening mechanism is detent lock. Current rating is specified at 3A. Selection is appropriate for cost-optimized applications with standard temperature requirements.

Frequently Asked Questions (FAQ)

Q: Can DF1BZ-2P-2.5DS replace DF1B-2P-2.5DS in all applications?

A: DF1BZ-2P-2.5DS is electrically and mechanically equivalent with one exception: voltage rating is 150V versus 250V. Substitution is valid for applications operating at or below 150V. For applications requiring 250V operation, use DF1B-2P-2.5DS(01).

Q: What is the difference between DF1B-2P-2.5DS(01) and the original DF1B-2P-2.5DS?

A: Both maintain 250V voltage rating and identical mechanical form factor. The primary difference is contact finish: DF1B-2P-2.5DS(01) uses gold plating (8.00µin thickness) versus tin on the original part. Gold finish provides superior corrosion resistance. DF1B-2P-2.5DS(01) is active and ROHS3 compliant.

Q: Can 5-104361-1 be used as a direct mechanical replacement?

A: 5-104361-1 provides functional equivalence with pitch tolerance of 2.54mm versus 2.5mm. Fastening mechanism differs (latch holder vs push-pull). Mechanical interchangeability requires verification of mating connector compatibility and PCB layout tolerance. Operating temperature range is extended (-65°C to 105°C).

Q: What are the packaging differences among substitute parts?

A: DF1BZ-2P-2.5DS is supplied in bulk packaging. DF1B-2P-2.5DS(01) is supplied in bulk packaging. 5-104361-1 is supplied in tube packaging. S2B-XH-A-1 is supplied in bulk packaging. Packaging does not affect electrical or mechanical performance.

Q: Which substitute part is recommended for new designs?

A: DF1B-2P-2.5DS(01) is the manufacturer-recommended equivalent, maintaining all original electrical specifications (250V) with enhanced contact finish and active product status. For applications requiring extended temperature operation, 5-104361-1 provides -65°C to 105°C range. For cost-optimized designs with standard temperature requirements, S2B-XH-A-1 is suitable.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. DF1BZ-2P-2.5DS, DF1B-2P-2.5DS(01), 5-104361-1, and S2B-XH-A-1 are all ROHS3 compliant. The original DF1B-2P-2.5DS is RoHS non-compliant.