DF7-5P-3.96DS(26) Equivalent & Substitute Parts

Part Overview

The DF7-5P-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 with 5 positions at 0.156" (3.96mm) pitch. This connector features shrouded 4-wall construction with solder termination and latch holder fastening. The product is currently obsolete, making identification of equivalent substitute parts essential for ongoing maintenance, repair, 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	5
Number of Rows	1
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Contact Material	Copper Alloy
Insulation Material	Polyamide (PA), Nylon, Glass Filled
Operating Temperature	-35°C ~ 85°C
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution of the DF7-5P-3.96DS(26) is determined by strict alignment of the following critical parameters:

Connector type (Header) and contact type (Male Pin)
Pitch specification (0.156" / 3.96mm) for mechanical and electrical compatibility
Number of positions (5) and row configuration (1 row)
Mounting style (Through Hole, Right Angle)
Shrouding configuration (Shrouded - 4 Wall)
Termination method (Solder)
Contact material (Copper Alloy)
Flammability rating (UL94 V-0)

The TE Connectivity AMP Connectors part number 2-647126-5 (MTA-156 series) meets all these core substitution criteria. While minor variations exist in contact dimensions, insulation height, and contact finish specifications, these differences do not prevent functional equivalence in board-to-cable/wire applications where the DF7-5P-3.96DS(26) was originally specified.

Parameter Comparison

Parameter	DF7-5P-3.96DS(26) (Hirose)	2-647126-5 (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	5	5
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 Material	Copper Alloy	Copper Alloy
Insulation Material	Polyamide (PA), Nylon, Glass Filled	Thermoplastic, Glass Filled
Operating Temperature	-35°C ~ 85°C	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Contact Length - Mating	0.276" (7.00mm)	0.300" (7.62mm)
Contact Length - Post	0.138" (3.50mm)	0.125" (3.18mm)
Insulation Height	0.303" (7.70mm)	0.455" (11.56mm)
Contact Finish - Mating	Gold	Tin
Product Status	Obsolete	Active

Engineering Selection Recommendations

The TE Connectivity 2-647126-5 (MTA-156 series) is the primary substitute for the obsolete DF7-5P-3.96DS(26). Selection is justified on the following basis:

Product Status: The DF7-5P-3.96DS(26) is obsolete, while the 2-647126-5 maintains active product status with current manufacturing and supply chain availability.

Compliance & Certifications: Both connectors meet UL94 V-0 flammability requirements. The TE Connectivity part carries ROHS3 compliance, providing regulatory advantage for new designs and long-term supply assurance.

Functional Equivalence: Core electrical and mechanical parameters align across connector type, pitch, position count, mounting configuration, and shrouding design. The substitute part operates across an extended temperature range (-55°C ~ 105°C versus -35°C ~ 85°C), providing superior thermal performance margin.

Physical Considerations: The substitute part exhibits increased insulation height (0.455" versus 0.303") and slightly longer mating contact length (0.300" versus 0.276"). These dimensional differences require verification against PCB layout and mating connector specifications to ensure mechanical fit within the application envelope.

Frequently Asked Questions (FAQ)

Q: Can the 2-647126-5 directly replace the DF7-5P-3.96DS(26) in existing assemblies?

A: Functional substitution is supported based on matching pitch, position count, mounting type, and shrouding configuration. Physical fit must be verified, as the substitute part has greater insulation height and different contact dimensions. PCB footprint and mating connector compatibility should be confirmed before implementation.

Q: What are the key differences between these two connectors?

A: Primary differences include contact finish (Gold versus Tin), insulation material composition (Polyamide versus Thermoplastic), operating temperature range (-35°C~85°C versus -55°C~105°C), and physical dimensions (insulation height and contact lengths). These variations do not affect substitution eligibility for board-to-cable/wire applications where the original part was specified.

Q: Why is the DF7-5P-3.96DS(26) obsolete?

A: Product obsolescence is determined by the manufacturer. The TE Connectivity MTA-156 series represents the active equivalent in the rectangular connector market for this pitch and position configuration.

Q: Are there compliance or certification concerns with substitution?

A: Both connectors meet UL94 V-0 flammability standards. The substitute part carries ROHS3 compliance, which may be required for new designs or specific regulatory jurisdictions. Verify compliance requirements against your application specifications.

Q: What should be checked before finalizing the substitution?

A: Verify PCB footprint compatibility with the increased insulation height of the substitute part. Confirm mating connector specifications align with the substitute's contact dimensions. Validate operating temperature requirements fall within the substitute's rated range. Review any application-specific certifications or standards beyond flammability ratings.

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