DF7-7P-3.96DS(25) Equivalent & Substitute Parts

Part Overview

The DF7-7P-3.96DS(25) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole, right-angle board-to-cable/wire applications. This 7-position connector operates at 0.156" (3.96mm) pitch with shrouded 4-wall construction and solder termination. The product is currently obsolete, making identification of equivalent and substitute parts essential for ongoing system maintenance, repair, and legacy design support.

Substiute Parts

DF7-7P-3.96DS(25)

Hirose Electric Co LtdIn Stock: 1160DF7-7P-3.96DS(25) Datasheet

Current PartRFQ

2-647126-7

TE Connectivity AMP ConnectorsIn Stock: 11892-647126-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF7-7P-3.96DS(25) is determined by strict alignment of the following critical parameters:

• Pitch - Mating: 0.156" (3.96mm) — determines mechanical and electrical compatibility with mating connectors
• Number of Positions: 7 — defines circuit count and connector footprint
• Number of Rows: 1 — establishes physical layout and board space requirements
• Mounting Type: Through Hole, Right Angle — ensures PCB assembly compatibility
• Shrouding: Shrouded - 4 Wall — provides mechanical protection and polarization
• Termination: Solder — defines connection method to PCB
• Contact Type: Male Pin — determines mating interface
• Contact Material and Finish: Copper Alloy with Tin — ensures electrical conductivity and corrosion resistance
• Insulation Material: Glass-filled thermoplastic or polyamide — provides mechanical strength and thermal stability
• Material Flammability Rating: UL94 V-0 — meets safety compliance requirements

The TE Connectivity AMP Connectors part 2-647126-7 (MTA-156 series) satisfies all critical substitution criteria and is classified as an active product with enhanced compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 2-647126-7 (MTA-156 series) is the primary substitute for the obsolete DF7-7P-3.96DS(25). Selection is 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. The Hirose DF7 series is obsolete, limiting future procurement options.

Compliance and Certifications: Both parts meet UL94 V-0 flammability requirements and maintain MSL 1 (Unlimited) moisture sensitivity ratings. The TE Connectivity part carries RoHS Compliance certification, providing additional environmental compliance assurance.

Electrical and Mechanical Compatibility: Both connectors share identical pitch (0.156"), position count (7), row configuration (1), mounting type (through-hole right-angle), shrouding (4-wall), and termination method (solder). Contact material, finish, and insulation properties are functionally equivalent.

Operating Temperature Range: The TE Connectivity part extends the operating temperature range to -55°C ~ 105°C, compared to the Hirose part's -35°C ~ 85°C. This provides enhanced thermal performance for demanding applications.

Fastening Type Difference: The Hirose part uses a Latch Holder fastening mechanism, while the TE Connectivity part uses Friction Lock. Both provide secure mating; however, mechanical interface differences should be evaluated for specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 2-647126-7 directly replace the Hirose DF7-7P-3.96DS(25)?

A: Yes. Both connectors share identical pitch (0.156"), position count (7), row configuration, mounting type (through-hole right-angle), shrouding (4-wall), and solder termination. Mechanical and electrical compatibility is established through these matching parameters.

Q: What is the difference between Latch Holder and Friction Lock fastening?

A: Latch Holder (Hirose) and Friction Lock (TE Connectivity) are different mechanical retention mechanisms. Both secure the mated connector pair; however, the engagement and release methods differ. Application-specific requirements should determine which fastening type is appropriate.

Q: Are there any compliance differences between these parts?

A: Both parts meet UL94 V-0 flammability and MSL 1 (Unlimited) moisture sensitivity requirements. The TE Connectivity part carries RoHS Compliance certification. The Hirose part's REACH status is listed as REACH Unaffected, while the TE Connectivity part's REACH status is Vendor Undefined.

Q: What is the significance of the extended operating temperature range in the TE Connectivity part?

A: The TE Connectivity 2-647126-7 operates from -55°C ~ 105°C, compared to the Hirose part's -35°C ~ 85°C. This extended range provides greater thermal margin for applications exposed to extreme environmental conditions or high-temperature operating environments.

Q: Are the contact dimensions identical between these parts?

A: Contact dimensions differ slightly. The TE Connectivity part has a mating contact length of 0.300" (7.62mm) versus the Hirose part's 0.276" (7.00mm), and an insulation height of 0.455" (11.56mm) versus 0.303" (7.70mm). These dimensional differences do not affect substitution compatibility for standard board-to-cable applications.

Q: What is the inventory status for these parts?

A: The Hirose DF7-7P-3.96DS(25) has 1069 pieces in stock as new original inventory. The TE Connectivity 2-647126-7 has 1121 pieces in stock as new original inventory. As an active product, the TE Connectivity part offers superior long-term availability.