DF7-4P-3.96DS(26) Equivalent & Substitute Parts

Part Overview

The DF7-4P-3.96DS(26) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole, right-angle board-to-cable/wire applications. This 4-position connector operates at 0.156" (3.96mm) pitch with shrouded 4-wall construction and solder termination. The product is currently obsolete, making equivalent substitute parts necessary for ongoing maintenance, repair, and legacy system support where original components are no longer available.

Substiute Parts

DF7-4P-3.96DS(26)

Hirose Electric Co LtdIn Stock: 885DF7-4P-3.96DS(26) Datasheet

Current PartRFQ

2-647126-4

TE Connectivity AMP ConnectorsIn Stock: 9752-647126-4 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DF7-4P-3.96DS(26) is determined by strict alignment with the following critical parameters:

• Connector Type & Contact Type: Must be Header with Male Pin configuration
• Pitch & Position Count: Must maintain 0.156" (3.96mm) pitch with 4 positions in single row
• Mounting & Orientation: Must support through-hole, right-angle mounting
• Shrouding Configuration: Must feature shrouded 4-wall design
• Termination Method: Must use solder termination
• Contact Material & Insulation: Must use copper alloy contacts with glass-filled insulation material
• Flammability Compliance: Must meet UL94 V-0 rating

The TE Connectivity AMP Connectors part number 2-647126-4 (MTA-156 series) satisfies all mandatory substitution criteria and is classified as an active product with enhanced operating temperature range and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 2-647126-4 connector is a direct functional substitute for the obsolete DF7-4P-3.96DS(26). Selection should be based on the following engineering factors:

Product Status: The TE Connectivity part is active and currently in production, ensuring long-term availability and supply chain continuity compared to the obsolete Hirose component.

Compliance & Certifications: Both connectors meet UL94 V-0 flammability requirements and share identical ECCN (EAR99) and HTSUS classifications, confirming regulatory equivalence for export and procurement purposes.

Operating Temperature Range: The TE Connectivity substitute provides an extended operating temperature range (-55°C ~ 105°C) compared to the original (-35°C ~ 85°C), offering greater thermal margin for demanding applications.

Contact Finish Difference: The original uses gold plating on mating contacts, while the substitute uses tin plating with specified thickness (150.0µin / 3.81µm). This difference affects corrosion resistance and contact reliability in specific environmental conditions and should be evaluated against application requirements.

Mechanical Compatibility: Both connectors maintain identical pitch (0.156"), position count (4), mounting method (through-hole right-angle), and shrouding configuration (4-wall), ensuring direct PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 2-647126-4 be used as a direct replacement for the DF7-4P-3.96DS(26)?

A: Yes. Both connectors share identical pitch (0.156" / 3.96mm), position count (4), mounting type (through-hole right-angle), shrouding (4-wall), and termination method (solder). PCB footprints and mating interface are compatible.

Q: What is the primary difference between these two connectors?

A: The main differences are product status (obsolete vs. active), contact finish (gold vs. tin), operating temperature range (-35°C~85°C vs. -55°C~105°C), and insulation material composition (polyamide vs. thermoplastic). All differences are within acceptable substitution parameters.

Q: Does the contact finish difference (gold vs. tin) affect compatibility?

A: Contact finish affects corrosion resistance and contact reliability in specific environments. Gold provides superior corrosion resistance in harsh conditions, while tin is suitable for general industrial applications. Evaluate based on your application's environmental exposure and contact force requirements.

Q: Are there any compliance or regulatory concerns with this substitution?

A: No. Both connectors share identical ECCN (EAR99), HTSUS classification (8536.69.4040), UL94 V-0 flammability rating, and MSL 1 moisture sensitivity level. Regulatory and compliance profiles are equivalent.

Q: What is the inventory status for the substitute part?

A: The TE Connectivity 2-647126-4 has 940 pieces in stock as new original inventory, providing immediate availability for procurement and assembly operations.

Q: Does the extended operating temperature range of the TE part provide any advantage?

A: The TE Connectivity connector operates from -55°C to 105°C compared to -35°C to 85°C for the original. This extended range provides additional thermal margin and may be beneficial for applications in extreme temperature environments or future design flexibility.