DF7-10P-3.96DS(26) Equivalent & Substitute Parts

Part Overview

The DF7-10P-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 10-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.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.156" (3.96mm)
Number of Positions	10
Number of Rows	1
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Contact Shape	Square
Insulation Material	Polyamide (PA), Nylon, Glass Filled
Material Flammability Rating	UL94 V-0
Operating Temperature	-35°C ~ 85°C

Substitute Part Grouping Explanation

Substitution of the DF7-10P-3.96DS(26) is determined by strict alignment of the following electrical and mechanical parameters:

Pitch and Position Compatibility: Mating pitch of 0.156" (3.96mm) with 10 positions in a single row
Connector Architecture: Header type with male pin contacts, shrouded 4-wall construction
Mounting Configuration: Through-hole, right-angle orientation for board-to-cable/wire applications
Termination Method: Solder termination on post contacts
Contact Geometry: Square contact shape with copper alloy material
Insulation Properties: Glass-filled thermoplastic or polyamide material with UL94 V-0 flammability rating
Environmental Specifications: Operating temperature range and moisture sensitivity level

The TE Connectivity AMP Connectors part 3-647126-0 (MTA-156 series) meets these core substitution criteria, enabling functional replacement in applications requiring equivalent electrical and mechanical performance.

Parameter Comparison

Parameter	DF7-10P-3.96DS(26) (Hirose)	3-647126-0 (TE Connectivity)
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Pitch - Mating	0.156" (3.96mm)	0.156" (3.96mm)
Number of Positions	10	10
Number of Rows	1	1
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder
Contact Shape	Square	Square
Contact Material	Copper Alloy	Copper Alloy
Insulation Material	Polyamide (PA), Nylon, Glass Filled	Thermoplastic, Glass Filled
Material Flammability Rating	UL94 V-0	UL94 V-0
Operating Temperature	-35°C ~ 85°C	-55°C ~ 105°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active

Engineering Selection Recommendations

The TE Connectivity 3-647126-0 connector provides functional equivalence to the obsolete DF7-10P-3.96DS(26) based on matched electrical and mechanical specifications. The substitute part maintains identical pitch, position count, mounting orientation, and shrouding configuration, ensuring mechanical and electrical compatibility in board-to-cable/wire applications.

The TE Connectivity part carries active product status with RoHS compliance certification, providing supply chain continuity and regulatory alignment for new designs and legacy system support. Both connectors meet UL94 V-0 flammability requirements and operate within compatible environmental specifications. The substitute part's extended operating temperature range (-55°C ~ 105°C) provides broader thermal capability compared to the original specification (-35°C ~ 85°C).

Contact finish differences exist between the parts: the original uses gold plating on mating contacts, while the substitute uses tin plating with specified thickness. These finishes remain compatible for standard solder termination and general-purpose industrial applications.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 3-647126-0 directly replace the Hirose DF7-10P-3.96DS(26)?

A: Yes. Both connectors share identical pitch (0.156"), position count (10), mounting type (through-hole right-angle), shrouding (4-wall), and termination method (solder). Mechanical and electrical compatibility is maintained for board-to-cable/wire applications.

Q: What are the key differences between these connectors?

A: Primary differences include product status (obsolete vs. active), contact finish material (gold vs. tin), insulation material composition (polyamide vs. thermoplastic), and operating temperature range (-35°C to 85°C vs. -55°C to 105°C). These differences do not affect functional substitution in standard applications.

Q: Are there any compliance or certification considerations?

A: Both connectors meet UL94 V-0 flammability requirements and maintain MSL 1 (Unlimited) moisture sensitivity ratings. The TE Connectivity part carries RoHS compliance certification, supporting regulatory requirements for new designs.

Q: How do the contact finishes affect performance?

A: Gold plating on the original part and tin plating on the substitute are both suitable for solder termination and general-purpose industrial applications. Contact finish selection does not impact mechanical fit or electrical continuity in standard board-to-cable/wire configurations.

Q: What is the impact of the extended operating temperature range on the substitute part?

A: The TE Connectivity connector's extended range (-55°C to 105°C) provides additional thermal capability beyond the original specification. This does not create compatibility issues and may benefit applications requiring broader temperature operation.

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