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

Part Overview

The DF7-10P-3.96DSA(26) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting in board-to-cable/wire applications. This 10-position shrouded header operates at 0.156" (3.96mm) pitch and features gold-plated square contacts with solder termination. The product is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs requiring compatible interconnect solutions.

Substiute Parts

DF7-10P-3.96DSA(26)

Hirose Electric Co LtdIn Stock: 854DF7-10P-3.96DSA(26) Datasheet

Current PartRFQ

1877285-9

TE Connectivity AMP ConnectorsIn Stock: 31141877285-9 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF7-10P-3.96DSA(26) is evaluated based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Pitch - Mating: 0.156" (3.96mm) — must match for mechanical alignment
• Connector Type: Header — must be header configuration
• Contact Type: Male Pin — must maintain male pin contact
• Mounting Type: Through Hole — must support through-hole PCB mounting
• Termination: Solder — must use solder termination
• Shrouding: Shrouded - 4 Wall — must provide equivalent shrouding protection
• Contact Shape: Square — must maintain square contact geometry

Secondary Compatibility Criteria:

• Number of Positions: Determines circuit capacity; substitutes must accommodate the required pin count
• Insulation Material: Polyamide or equivalent glass-filled thermoplastic
• Operating Temperature Range: Must support the application environment
• Material Flammability Rating: UL94 V-0 compliance required

The substitute part 1877285-9 (TE Connectivity AMP Connectors) shares the core mating pitch, connector type, contact configuration, and mounting methodology. However, the substitute features 9 positions versus 10 positions in the original part, representing a reduced-capacity alternative suitable for applications requiring fewer interconnect points within the same form factor and electrical interface standard.

Parameter Comparison

Engineering Selection Recommendations

The DF7-10P-3.96DSA(26) is classified as obsolete. The 1877285-9 substitute is an active product from TE Connectivity AMP Connectors, ensuring ongoing availability and manufacturing support.

Substitution Feasibility:

The 1877285-9 is mechanically and electrically compatible for applications requiring 9 or fewer interconnect positions at 0.156" (3.96mm) pitch. Both connectors share identical mating pitch, shrouding configuration, contact geometry, and through-hole solder termination methodology. Both meet UL94 V-0 flammability requirements and REACH compliance status.

Differences Requiring Evaluation:

• Position Count: The substitute provides 9 positions versus 10 in the original. Applications utilizing all 10 positions require alternative solutions.
• Contact Finish: The original features gold plating; the substitute uses tin plating. Gold plating provides enhanced corrosion resistance and lower contact resistance, particularly in low-signal applications.
• Contact Material: Copper alloy versus brass affects mechanical properties and solderability characteristics.
• Insulation Material: Polyamide versus PBT affects thermal and chemical resistance profiles.
• Operating Temperature Range: The substitute supports -25°C ~ 105°C versus the original -35°C ~ 85°C. Applications requiring operation below -25°C or above 105°C must verify compatibility.
• Electrical Ratings: The substitute specifies 7.5A at 250VAC; the original does not provide electrical ratings.

For applications requiring exactly 10 positions or the specific material properties of the original DF7 series, alternative Hirose DF7 series headers or equivalent 10-position connectors at 3.96mm pitch must be evaluated.

Frequently Asked Questions (FAQ)

Q: Can the 1877285-9 directly replace the DF7-10P-3.96DSA(26) in existing designs?

A: Direct replacement is possible only if the application uses 9 or fewer of the 10 available positions. The mating pitch, connector type, contact configuration, and mounting methodology are identical. However, designs utilizing all 10 positions require a 10-position alternative.

Q: What are the key differences between these connectors?

A: The primary differences are position count (10 versus 9), contact finish (gold versus tin), contact material (copper alloy versus brass), insulation material (polyamide versus PBT), and operating temperature range (-35°C ~ 85°C versus -25°C ~ 105°C). Both share 0.156" (3.96mm) pitch, shrouded 4-wall configuration, square contact geometry, and UL94 V-0 compliance.

Q: Does the tin plating on the 1877285-9 affect signal integrity compared to the gold-plated original?

A: Contact finish affects corrosion resistance and contact resistance characteristics. Gold plating provides superior corrosion resistance and lower contact resistance, particularly beneficial in low-signal or high-reliability applications. Tin plating is suitable for general-purpose industrial and lighting applications where the specified 7.5A current rating and 250VAC voltage rating are adequate.

Q: Are both connectors RoHS compliant?

A: The DF7-10P-3.96DSA(26) does not specify RoHS status. The 1877285-9 is ROHS3 compliant. Both are REACH unaffected and classified under ECCN EAR99.

Q: What is the moisture sensitivity level for these connectors?

A: Both connectors are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: If I need a 10-position connector at 3.96mm pitch, what alternatives exist?

A: The provided substitute list contains only the 1877285-9. For 10-position requirements, evaluate other Hirose DF7 series headers or equivalent rectangular connectors from manufacturers such as TE Connectivity, Molex, or Amphenol that maintain 0.156" (3.96mm) pitch and shrouded 4-wall configuration.