DF7-6P-3.96DS(25) Equivalent & Substitute Parts

Part Overview

The DF7-6P-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 6-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 functionally equivalent alternatives necessary for ongoing system support, maintenance, and new design implementations where legacy compatibility is required.

Substiute Parts

DF7-6P-3.96DS(25)

Hirose Electric Co LtdIn Stock: 1021DF7-6P-3.96DS(25) Datasheet

Current PartRFQ

2-647126-6

TE Connectivity AMP ConnectorsIn Stock: 9022-647126-6 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF7-6P-3.96DS(25) is determined by strict alignment of the following electrical and mechanical parameters:

• Pitch - Mating: 0.156" (3.96mm) — exact match required for connector interface compatibility
• Number of Positions: 6 — exact match required for circuit routing and pin assignment
• Number of Rows: 1 — exact match required for physical layout
• Connector Type: Header — exact match required for mating interface
• Contact Type: Male Pin — exact match required for mating with female receptacles
• Mounting Type: Through Hole, Right Angle — exact match required for PCB assembly and mechanical fit
• Shrouding: Shrouded - 4 Wall — exact match required for keying and polarization
• Termination: Solder — exact match required for assembly process compatibility
• Contact Material & Finish: Copper Alloy with Tin finish — exact match required for electrical performance and corrosion resistance
• Insulation Material: Glass-filled thermoplastic or polyamide — acceptable with equivalent electrical and thermal properties
• Operating Temperature Range: Must encompass or match the original specification
• Material Flammability Rating: UL94 V-0 — exact match required for safety compliance

The substitute part 2-647126-6 (TE Connectivity AMP Connectors, MTA-156 series) meets all mandatory substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

The 2-647126-6 (TE Connectivity MTA-156 series) is a functionally equivalent substitute for the obsolete DF7-6P-3.96DS(25). Selection is based on the following engineering factors:

Product Status: The original DF7-6P-3.96DS(25) is obsolete. The substitute 2-647126-6 is actively manufactured and available in production quantities (816 Pcs in stock), ensuring long-term supply chain continuity.

Electrical & Mechanical Compatibility: All critical parameters align: 0.156" (3.96mm) pitch, 6-position single-row configuration, through-hole right-angle mounting, shrouded 4-wall construction, solder termination, copper alloy contacts with tin finish, and UL94 V-0 flammability rating.

Compliance & Certifications: Both parts carry UL94 V-0 material flammability certification. The substitute is RoHS Compliant, meeting modern regulatory requirements. Both are MSL 1 (Unlimited), indicating no moisture sensitivity constraints.

Thermal Performance: The substitute operates across -55°C ~ 105°C, exceeding the original specification of -35°C ~ 85°C. This provides enhanced thermal margin for demanding applications.

Physical Dimensions: Minor dimensional variations exist. The substitute insulation height is 0.455" (11.56mm) versus 0.303" (7.70mm) on the original. Contact lengths differ slightly but remain within functional tolerance for standard PCB layouts. Verify PCB clearance and mating receptacle compatibility in space-constrained designs.

Fastening Mechanism: The original uses a Latch Holder fastening type; the substitute uses Friction Lock. Both provide secure mating. Verify mating receptacle compatibility with the friction lock mechanism.

Frequently Asked Questions (FAQ)

Q: Can the 2-647126-6 directly replace the DF7-6P-3.96DS(25) in existing designs?

A: Yes, for electrical and functional purposes. The 0.156" (3.96mm) pitch, 6-position configuration, through-hole right-angle mounting, and solder termination are identical. Verify PCB layout clearance due to the substitute's increased insulation height (0.455" vs 0.303"). Confirm mating receptacle compatibility with the friction lock fastening mechanism.

Q: What is the primary reason for substitution?

A: The DF7-6P-3.96DS(25) is obsolete and no longer manufactured. The 2-647126-6 is an active product with reliable supply availability.

Q: Are there electrical performance differences?

A: No. Both connectors use copper alloy contacts with tin finish, identical pitch and position count, and equivalent insulation materials. The substitute's expanded operating temperature range (-55°C ~ 105°C vs -35°C ~ 85°C) provides additional thermal margin.

Q: Does the substitute meet modern compliance standards?

A: Yes. The 2-647126-6 is RoHS Compliant and carries UL94 V-0 flammability certification, meeting current regulatory requirements. The original part's compliance status for RoHS is not specified.

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

A: Both provide secure mating. Latch Holder uses a mechanical latch mechanism; Friction Lock relies on contact pressure. Verify that your mating receptacle is compatible with the friction lock design of the substitute.

Q: Are there inventory considerations?

A: The substitute (2-647126-6) has 816 Pcs in stock as new original inventory. The original part has 923 Pcs available but is obsolete. For new designs or long-term support, the substitute ensures ongoing availability.

Q: What are the key parameters I must verify for substitution?

A: Pitch (0.156"), position count (6), row configuration (1), mounting type (through-hole right-angle), shrouding (4-wall), termination (solder), and mating receptacle compatibility with friction lock fastening.