DF7-4P-3.96DSA Equivalent & Substitute Parts

Part Overview

The DF7-4P-3.96DSA is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting in board-to-cable/wire applications. This 4-position connector features a 0.156" (3.96mm) pitch and shrouded 4-wall design with solder termination. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

DF7-4P-3.96DSA

Hirose Electric Co LtdIn Stock: 812DF7-4P-3.96DSA Datasheet

Current PartRFQ

B4P-VH-FB-B

JST Sales America Inc.In Stock: 1064B4P-VH-FB-B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The B4P-VH-FB-B from JST Sales America Inc. qualifies as a direct substitute based on the following critical parameters:

Matching Parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Pitch - Mating: 0.156" (3.96mm)
• Number of Positions: 4
• Number of Rows: 1
• Mounting Type: Through Hole
• Termination: Solder
• Shrouding: Shrouded - 4 Wall
• Contact Finish - Mating: Tin
• Contact Material: Copper Alloy
• Material Flammability Rating: UL94 V-0
• Moisture Sensitivity Level: 1 (Unlimited)

These parameters define the mechanical and electrical compatibility envelope for rectangular connector headers in this category. The B4P-VH-FB-B maintains all critical substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

The B4P-VH-FB-B is the designated substitute for the obsolete DF7-4P-3.96DSA. Selection of this alternative is supported by the following factors:

Product Status: The DF7-4P-3.96DSA is obsolete, while the B4P-VH-FB-B maintains active production status, ensuring long-term availability and supply chain continuity.

Compliance: The B4P-VH-FB-B is ROHS3 compliant, whereas the original part is RoHS non-compliant. This compliance improvement aligns with current regulatory requirements for electronic components.

Mechanical Compatibility: Both connectors share identical pitch (3.96mm), position count (4), row configuration (1), mounting method (through-hole), and shrouding design (4-wall). These parameters ensure physical interchangeability in board-level applications.

Electrical Characteristics: The B4P-VH-FB-B provides specified current (10A) and voltage (250V) ratings, whereas the original part does not include these specifications. Both maintain tin-plated copper alloy contacts and UL94 V-0 flammability certification.

Thermal Performance: The original part operates across -35°C to 85°C, while the substitute operates across -25°C to 85°C. For applications within the -25°C to 85°C range, thermal compatibility is maintained.

Physical Dimensions: Minor variations exist in insulation height (12.90mm vs. 11.00mm) and contact post length (3.50mm vs. 3.70mm). These dimensional differences are within acceptable tolerances for standard through-hole board designs and do not compromise functional substitution.

Frequently Asked Questions (FAQ)

Q: Can the B4P-VH-FB-B directly replace the DF7-4P-3.96DSA in existing designs?

A: Yes. Both connectors share identical pitch (3.96mm), position count (4), row configuration, mounting type (through-hole), and shrouding design. Physical and electrical interchangeability is maintained for standard board-to-cable/wire applications.

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

A: The primary differences are product status (obsolete vs. active), RoHS compliance (non-compliant vs. ROHS3 compliant), insulation material (PA/Nylon vs. PBT), operating temperature range (-35°C to 85°C vs. -25°C to 85°C), and fastening mechanism (latch holder vs. locking ramp). The B4P-VH-FB-B also provides specified electrical ratings (10A, 250V).

Q: Are there thermal limitations when substituting the B4P-VH-FB-B?

A: The B4P-VH-FB-B operates from -25°C to 85°C, compared to the original part's -35°C to 85°C range. Applications requiring operation below -25°C must evaluate alternative solutions. For standard industrial and commercial temperature ranges, thermal compatibility is maintained.

Q: Does the insulation material change affect performance?

A: The substitute uses polybutylene terephthalate (PBT) glass-filled insulation instead of polyamide (PA) nylon. Both materials maintain UL94 V-0 flammability certification and moisture sensitivity level 1. PBT offers improved dimensional stability and chemical resistance in typical board-level environments.

Q: What is the impact of the different fastening mechanisms?

A: The original uses a latch holder mechanism, while the substitute uses a locking ramp. Both provide secure mating and demating in board-to-cable/wire configurations. The locking ramp design in the B4P-VH-FB-B is standard in the JST VH series and maintains equivalent functional performance.

Q: Is the B4P-VH-FB-B available in the same packaging as the original?

A: The B4P-VH-FB-B is supplied in bulk packaging, whereas the original part packaging is not specified. Confirm packaging requirements with your procurement process to ensure compatibility with assembly workflows.

Q: What is the significance of the RoHS compliance difference?

A: The B4P-VH-FB-B is ROHS3 compliant, meeting current regulatory requirements for restricted hazardous substances. The original DF7-4P-3.96DSA is RoHS non-compliant. For applications subject to RoHS regulations, the substitute provides regulatory alignment.