DF7-1P-3.96DSA(25) Equivalent & Substitute Parts

Part Overview

The DF7-1P-3.96DSA(25) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole board-to-cable/wire applications with a single vertical position. This connector features shrouded 4-wall construction with solder termination and board lock functionality. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing maintenance, repair, and legacy system support.

Substiute Parts

DF7-1P-3.96DSA(25)

Hirose Electric Co LtdIn Stock: 718DF7-1P-3.96DSA(25) Datasheet

Current PartRFQ

1-1123824-1

TE Connectivity AMP ConnectorsIn Stock: 118461-1123824-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF7-1P-3.96DSA(25) with the 1-1123824-1 is based on the following critical parameters that must align for functional compatibility:

Mandatory Matching Parameters:

• Connector Type: Header (both parts)
• Contact Type: Male Pin (both parts)
• Number of Positions: 1 (both parts)
• Number of Rows: 1 (both parts)
• Style: Board to Cable/Wire (both parts)
• Shrouding: Shrouded - 4 Wall (both parts)
• Mounting Type: Through Hole (both parts)
• Termination: Solder (both parts)
• Contact Shape: Square (both parts)
• Contact Finish: Tin (both parts)
• Material Flammability Rating: UL94 V-0 (both parts)
• Moisture Sensitivity Level: 1 (Unlimited) (both parts)
• REACH Status: REACH Unaffected (both parts)
• ECCN: EAR99 (both parts)

Allowable Variations:

• Fastening Type: Latch Holder (DF7-1P-3.96DSA(25)) vs. Locking Ramp (1-1123824-1) — both provide board lock functionality
• Insulation Material: Polyamide (PA) vs. Polybutylene Terephthalate (PBT) — both are thermoplastic polymers with equivalent mechanical properties
• Contact Material: Copper Alloy vs. Brass — both provide equivalent electrical conductivity and corrosion resistance
• Operating Temperature Range: -35°C ~ 85°C vs. -25°C ~ 105°C — substitute provides extended upper temperature capability
• Contact Length - Post: 0.138" (3.50mm) vs. 0.146" (3.70mm) — minor dimensional variation within acceptable tolerance
• Insulation Height: 0.508" (12.90mm) vs. 0.528" (13.40mm) — minor dimensional variation within acceptable tolerance

Parameter Comparison

Engineering Selection Recommendations

The 1-1123824-1 manufactured by TE Connectivity AMP Connectors is the designated substitute for the obsolete DF7-1P-3.96DSA(25). Selection of this substitute is supported by the following factors:

Product Status: The DF7-1P-3.96DSA(25) is obsolete, while the 1-1123824-1 maintains active product status with established supply chain availability (11,788 pieces in stock versus 654 pieces for the original part).

Compliance and Certifications: Both parts meet UL94 V-0 flammability requirements and maintain REACH Unaffected status. The substitute additionally carries ROHS3 compliance, providing enhanced environmental regulatory alignment.

Functional Equivalence: All critical connector parameters align between the two parts, including connector type, contact configuration, mounting method, and termination approach. The substitute's extended operating temperature range (-25°C ~ 105°C versus -35°C ~ 85°C) provides additional thermal capability for applications requiring higher temperature operation.

Dimensional Compatibility: Minor variations in contact post length (0.008" difference) and insulation height (0.020" difference) fall within standard manufacturing tolerances and do not affect mechanical or electrical compatibility in board-to-cable/wire applications.

Frequently Asked Questions (FAQ)

Q: Can the 1-1123824-1 be used as a direct replacement for the DF7-1P-3.96DSA(25)?

A: Yes. Both connectors share identical core specifications for connector type, contact configuration, shrouding, mounting method, and termination. The substitute maintains functional and mechanical compatibility for board-to-cable/wire applications.

Q: What are the differences between the fastening mechanisms?

A: The original part uses a Latch Holder fastening type, while the substitute uses a Locking Ramp. Both mechanisms provide board lock functionality and are functionally equivalent for securing the connector to the PCB.

Q: Are there material differences between the two connectors?

A: The original part uses glass-filled polyamide (PA) insulation with copper alloy contacts. The substitute uses polybutylene terephthalate (PBT) insulation with brass contacts. Both material combinations provide equivalent electrical conductivity, mechanical strength, and environmental resistance for this connector class.

Q: Does the substitute support the same operating temperature range?

A: The substitute supports an extended operating temperature range of -25°C ~ 105°C compared to the original part's -35°C ~ 85°C. This provides additional thermal capability for high-temperature applications while maintaining compatibility with standard operating conditions.

Q: Are there any compliance or regulatory differences?

A: Both connectors meet UL94 V-0 flammability requirements and maintain REACH Unaffected status. The substitute additionally carries ROHS3 compliance, providing enhanced environmental regulatory alignment for new designs and applications subject to RoHS directives.

Q: What is the packaging difference between the two parts?

A: The original part is supplied in standard packaging, while the substitute is supplied in bulk packaging. This difference affects order quantities and handling but does not impact connector performance or compatibility.