DF7-8P-3.96DSA Equivalent & Substitute Parts

Part Overview

The DF7-8P-3.96DSA is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting with 8 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 compatible substitute parts essential for ongoing system support and component procurement.

Substiute Parts

DF7-8P-3.96DSA

Hirose Electric Co LtdIn Stock: 867DF7-8P-3.96DSA Datasheet

Current PartRFQ

B8P-VH-FB-B

JST Sales America Inc.In Stock: 500237B8P-VH-FB-B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF7-8P-3.96DSA is determined by the following critical parameters:

• Pitch Compatibility: 0.156" (3.96mm) mating pitch is the primary electrical constraint
• Position Count: 8-position configuration must be maintained
• Connector Type: Header with male pin contacts for board-to-cable/wire connection
• Mounting Method: Through-hole solder termination required
• Contact Material & Finish: Copper alloy with tin finish ensures electrical compatibility
• Shrouding & Fastening: Mechanical interface requirements for proper mating and retention
• Temperature Rating: Operating range must support -35°C ~ 85°C minimum
• Flammability: UL94 V-0 rating required for safety compliance

The B8P-VH-FB-B from JST Sales America Inc. meets these critical substitution criteria across all electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

The B8P-VH-FB-B is a direct functional substitute for the DF7-8P-3.96DSA based on matching electrical and mechanical parameters. Key selection factors:

Product Status: The DF7-8P-3.96DSA is obsolete, while the B8P-VH-FB-B is active production. This ensures long-term component availability and supply chain continuity.

Regulatory Compliance: The B8P-VH-FB-B achieves ROHS3 compliance, whereas the DF7-8P-3.96DSA is RoHS non-compliant. This provides improved environmental and regulatory alignment for new designs and legacy system updates.

Electrical Specifications: The B8P-VH-FB-B provides rated specifications (10A current, 250V voltage) that were not documented for the original part, enabling clearer system design validation.

Mechanical Interface: Both connectors maintain identical pitch (0.156"), position count (8), and through-hole solder termination, ensuring direct PCB compatibility without layout modifications.

Temperature Operating Range: The B8P-VH-FB-B operates from -25°C ~ 85°C, which covers the upper temperature requirement of the original -35°C ~ 85°C range. Applications requiring the full -35°C lower limit require thermal performance verification.

Insulation Material Difference: The B8P-VH-FB-B uses PBT (polybutylene terephthalate) glass-filled insulation versus the original PA (polyamide) nylon. Both materials meet UL94 V-0 flammability requirements and are suitable for standard industrial applications.

Frequently Asked Questions (FAQ)

Q: Can the B8P-VH-FB-B directly replace the DF7-8P-3.96DSA without PCB modifications?

A: Yes. Both connectors share identical 0.156" (3.96mm) pitch, 8-position configuration, through-hole solder termination, and square contact geometry. No PCB layout changes are required.

Q: What is the difference in shrouding between these connectors?

A: The DF7-8P-3.96DSA features 4-wall shrouding with latch holder fastening. The B8P-VH-FB-B features 1-wall shrouding with locking ramp fastening. Both provide mechanical retention and board guidance; the fastening mechanism differs but both are suitable for board-to-cable/wire connections.

Q: Does the B8P-VH-FB-B meet the full temperature range of the original part?

A: The B8P-VH-FB-B operates from -25°C ~ 85°C, while the original operates from -35°C ~ 85°C. Applications requiring operation below -25°C require thermal performance validation with the substitute part.

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

A: The DF7-8P-3.96DSA is RoHS non-compliant; the B8P-VH-FB-B is ROHS3 compliant. For new designs and systems subject to environmental regulations, the B8P-VH-FB-B provides regulatory alignment. Legacy systems using the original part are not affected by this difference.

Q: Are the electrical ratings equivalent?

A: The original DF7-8P-3.96DSA does not specify current or voltage ratings. The B8P-VH-FB-B is rated for 10A at 250V. These specifications should be verified against your application requirements to ensure adequate margin.

Q: What is the difference in insulation material?

A: The DF7-8P-3.96DSA uses glass-filled polyamide (PA/nylon); the B8P-VH-FB-B uses glass-filled polybutylene terephthalate (PBT). Both materials meet UL94 V-0 flammability requirements. PBT offers improved chemical resistance and dimensional stability; PA offers superior impact resistance. Material selection depends on specific environmental exposure conditions.

Q: Is the B8P-VH-FB-B available in the same packaging as the original?

A: The B8P-VH-FB-B is supplied in bulk packaging, while the original DF7-8P-3.96DSA packaging is not specified. Verify packaging requirements with your procurement process.