DF7-3P-3.96DSA(26) Equivalent & Substitute Parts

Part Overview

The DF7-3P-3.96DSA(26) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting in board-to-cable/wire applications. This 3-position connector features a 0.156" (3.96mm) pitch and shrouded 4-wall design with solder termination. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement.

Substiute Parts

DF7-3P-3.96DSA(26)

Hirose Electric Co LtdIn Stock: 808DF7-3P-3.96DSA(26) Datasheet

Current PartRFQ

179839-1

TE Connectivity AMP ConnectorsIn Stock: 3689179839-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF7-3P-3.96DSA(26) is determined by the following critical parameters:

• Pitch - Mating: 0.156" (3.96mm) — must match exactly for mechanical and electrical compatibility
• Number of Positions: 3 — connector must accommodate the same pin count
• Mounting Type: Through Hole — PCB mounting method must remain consistent
• Shrouding: Shrouded - 4 Wall — physical envelope and polarization features must align
• Connector Type: Header — functional role in board-to-cable/wire applications
• Termination: Solder — connection method to PCB must be compatible
• Material Flammability Rating: UL94 V-0 — safety compliance requirement

The substitute part 179839-1 (TE Connectivity AMP Connectors) satisfies all critical substitution criteria. Both connectors share identical pitch, position count, mounting method, shrouding configuration, and flammability rating. The substitute maintains through-hole solder termination and operates within compatible temperature ranges for most applications.

Parameter Comparison

Engineering Selection Recommendations

The 179839-1 substitute part is suitable for applications currently using the DF7-3P-3.96DSA(26). Both connectors meet UL94 V-0 flammability requirements and share identical electrical and mechanical mating characteristics. The substitute part carries Active product status with RoHS3 compliance, ensuring long-term availability and regulatory alignment.

The operating temperature range of 179839-1 (-30°C ~ 105°C) exceeds the original part specification (-35°C ~ 85°C), providing extended thermal capability. Contact finish differs between the two parts (Gold on original versus Tin on substitute), which may affect contact resistance characteristics in specific applications. Insulation material composition varies between glass-filled polyamide and standard PA66 nylon, with both meeting UL94 V-0 requirements.

Selection of the substitute should be based on application-specific requirements for contact finish, temperature extremes, and insulation material properties.

Frequently Asked Questions (FAQ)

Q: Can 179839-1 be used as a direct replacement for DF7-3P-3.96DSA(26)?

A: Yes, for applications where the electrical and mechanical parameters align. Both connectors share 0.156" (3.96mm) pitch, 3-position configuration, through-hole mounting, shrouded 4-wall design, and UL94 V-0 compliance. Differences in contact finish (Gold vs. Tin) and insulation material composition should be evaluated against application requirements.

Q: What are the key differences between these two connector models?

A: Primary differences include contact finish material (Gold vs. Tin), insulation material composition (glass-filled PA vs. PA66), operating temperature range (-35°C to 85°C vs. -30°C to 105°C), and product status (Obsolete vs. Active). Both maintain identical mating pitch, position count, and shrouding configuration.

Q: Does the substitute part require PCB layout modifications?

A: No. Both connectors feature identical 0.156" (3.96mm) pitch and through-hole mounting, allowing direct PCB footprint compatibility without layout changes.

Q: Is the substitute part RoHS compliant?

A: Yes, 179839-1 is RoHS3 compliant. The original DF7-3P-3.96DSA(26) REACH status is listed as REACH Unaffected.

Q: What is the availability difference between these parts?

A: The original DF7-3P-3.96DSA(26) is obsolete with limited inventory (708 pcs). The substitute 179839-1 is Active with significantly higher availability (3607 pcs), ensuring reliable long-term procurement.