DF1B-8P-2.5DS Equivalent & Substitute Parts

Part Overview

The DF1B-8P-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 8 positions at 0.098" (2.50mm) pitch. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The connector features shrouded 4-wall construction, push-pull fastening, and tin-plated brass contacts rated for 250V operation across an operating temperature range of -35°C to 85°C.

Substiute Parts

DF1B-8P-2.5DS

Hirose Electric Co LtdIn Stock: 792DF1B-8P-2.5DS Datasheet

Current PartRFQ

DF1BZ-8P-2.5DS

Hirose Electric Co LtdIn Stock: 940DF1BZ-8P-2.5DS Datasheet

DirectRFQ

DF1B-8P-2.5DS(01)

Hirose Electric Co LtdIn Stock: 23300DF1B-8P-2.5DS(01) Datasheet

MFR RecommendedRFQ

102203-5

TE Connectivity AMP ConnectorsIn Stock: 1220102203-5 Datasheet

MFR RecommendedRFQ

281699-8

TE Connectivity AMP ConnectorsIn Stock: 906281699-8 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DF1B-8P-2.5DS is determined by the following critical parameters:

Primary Compatibility Criteria:

• Number of positions: 8
• Connector type: Header
• Contact type: Male pin
• Mounting type: Through hole, right angle
• Shrouding: Shrouded construction
• Termination: Solder
• Insulation material: Polyamide (PA), Nylon or equivalent thermoplastic
• Material flammability rating: UL94 V-0

Secondary Compatibility Considerations:

• Pitch tolerance: 0.098" (2.50mm) preferred; 0.100" (2.54mm) acceptable with mechanical verification
• Contact finish: Tin or gold plating acceptable
• Fastening type: Push-pull or friction lock acceptable
• Operating temperature range: Minimum -35°C to 85°C coverage required

The substitute parts listed below meet these criteria with varying degrees of direct equivalence and compliance status.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Same Pitch, Same Manufacturer):

DF1BZ-8P-2.5DS and DF1B-8P-2.5DS(01) are both Hirose DF1B series connectors with identical 0.098" (2.50mm) pitch and 8-position configuration. Both are active products with ROHS3 compliance, addressing the obsolescence of the original part. DF1B-8P-2.5DS(01) maintains the 250V rating of the original and features gold-plated mating contacts. DF1BZ-8P-2.5DS is tin-plated with a reduced 150V rating. Selection between these two depends on voltage requirements and compliance mandates.

Cross-Manufacturer Alternatives (Different Pitch):

102203-5 (TE Connectivity AMPMODU Mod II) and 281699-8 (TE Connectivity HE13/HE14) operate at 0.100" (2.54mm) pitch, representing a 0.002" (0.05mm) deviation from the original specification. These parts are mechanically and electrically compatible for applications where pitch tolerance permits. 102203-5 provides extended operating temperature range (-65°C to 105°C) and specified 3A current rating. 281699-8 features RoHS compliance and gold-plated contacts with friction-lock fastening instead of push-pull.

Compliance Considerations:

For new designs requiring RoHS compliance, DF1BZ-8P-2.5DS, DF1B-8P-2.5DS(01), or 281699-8 are suitable. For applications with strict voltage requirements above 150V, DF1B-8P-2.5DS(01) is the preferred Hirose option. For applications tolerating pitch variation and requiring extended temperature performance, 102203-5 offers broader operational envelope.

Frequently Asked Questions (FAQ)

Q: Can DF1BZ-8P-2.5DS directly replace DF1B-8P-2.5DS in all applications?

A: DF1BZ-8P-2.5DS is mechanically and electrically compatible with identical pitch, position count, and mounting configuration. The primary difference is voltage rating: DF1BZ-8P-2.5DS is rated 150V versus the original 250V. Substitution is valid only for applications operating at or below 150V.

Q: What is the pitch difference between the Hirose DF1B series and TE Connectivity alternatives?

A: Hirose DF1B parts operate at 0.098" (2.50mm) pitch. TE Connectivity 102203-5 and 281699-8 operate at 0.100" (2.54mm) pitch, a 0.002" (0.05mm) difference. This difference is within typical PCB manufacturing tolerances but requires verification for applications with tight mechanical constraints.

Q: Are TE Connectivity parts (102203-5, 281699-8) compatible with existing DF1B-8P-2.5DS mating connectors?

A: Compatibility depends on mating connector pitch tolerance. If the mating connector accepts 0.100" (2.54mm) pitch, TE Connectivity parts are compatible. If the mating connector is designed exclusively for 0.098" (2.50mm) pitch, mechanical interference may occur. Verification with mating connector specifications is required.

Q: Which substitute part offers the best compliance profile?

A: DF1B-8P-2.5DS(01) and 281699-8 both carry RoHS compliance certifications. DF1B-8P-2.5DS(01) maintains Hirose series compatibility and 250V rating. 281699-8 provides RoHS compliance with extended operating temperature range but introduces pitch variation and friction-lock fastening.

Q: What is the difference between push-pull and friction-lock fastening?

A: Push-pull fastening (DF1B-8P-2.5DS, DF1BZ-8P-2.5DS, DF1B-8P-2.5DS(01), 102203-5) uses a mechanical latch mechanism for secure mating. Friction-lock fastening (281699-8) relies on contact pressure for retention. Push-pull fastening generally provides more positive engagement and is preferred for applications requiring frequent mating cycles or vibration resistance.

Q: Can 102203-5 be used in applications requiring the original -35°C lower temperature limit?

A: 102203-5 operates from -65°C to 105°C, exceeding the original -35°C to 85°C range. It is suitable for applications requiring the original -35°C minimum and provides additional margin for lower temperature operation.