7840-0006PR Equivalent & Substitute Parts

Part Overview

The 7840-0006PR is a 40-position ribbon cable DIP header connector manufactured by 3M, designed for through-hole mounting with IDC (Insulation Displacement Contact) termination. This connector features a vertical orientation, dual-row configuration, and gold-plated contacts suitable for applications requiring reliable ribbon cable interconnection.

The 7840-0006PR is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this connector.

Substiute Parts

7840-0006PR

3MIn Stock: 10837840-0006PR Datasheet

Current PartRFQ

AWLP 40/3,2-G

Assmann WSW ComponentsIn Stock: 3204AWLP 40/3,2-G Datasheet

DirectRFQ

1-746610-9

TE Connectivity AMP ConnectorsIn Stock: 24261-746610-9 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 7840-0006PR are qualified based on the following critical parameters that determine functional and mechanical compatibility:

• Connector Type: Ribbon Cable, DIP Header (exact match required)
• Number of Positions: 40 (exact match required)
• Cable Pitch: 0.050" (1.27mm) (exact match required)
• Board-Side Pitch: 0.100" (2.54mm) (exact match required)
• Number of Rows: 2 (exact match required)
• Row Spacing: 0.100" (2.54mm) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Cable Termination: IDC (exact match required)
• Features: Feed Through (exact match required)
• Number of Positions Loaded: All (exact match required)
• Moisture Sensitivity Level (MSL): 1 (Unlimited) (exact match required)

Variations in contact finish material, contact finish thickness, wire gauge compatibility, color, and product status are permitted within the scope of substitution, provided all critical parameters remain unchanged.

Parameter Comparison

Engineering Selection Recommendations

AWLP 40/3,2-G (Assmann WSW Components): This substitute maintains all critical mechanical and electrical parameters identical to the 7840-0006PR. The part is currently active in production with RoHS3 compliance and REACH unaffected status. The gray color matches the original specification. This part is suitable for direct substitution in applications where the original 3M connector is no longer available.

1-746610-9 (TE Connectivity AMP Connectors): This substitute meets all critical mechanical and electrical parameters and is designated as the manufacturer-recommended alternative. The part is active in production with RoHS compliance and REACH unaffected status. The contact finish is tin rather than gold, and the connector color is black rather than gray. This part is suitable for substitution in applications where contact finish material and color variation are acceptable within system design constraints.

Frequently Asked Questions (FAQ)

Q: Can the AWLP 40/3,2-G be used as a direct replacement for the 7840-0006PR?

A: Yes. The AWLP 40/3,2-G maintains identical specifications for all critical parameters: 40 positions, 0.050" cable pitch, 0.100" board-side pitch, 2-row configuration, through-hole mounting, IDC termination, and feed-through features. The gray color and gold contact finish also match the original specification.

Q: What is the difference between the 1-746610-9 and the original 7840-0006PR?

A: The 1-746610-9 differs in two non-critical parameters: contact finish material (tin instead of gold) and connector color (black instead of gray). All mechanical and electrical parameters remain identical. The tin contact finish and black color are acceptable substitutions if system design permits.

Q: Are both substitute parts currently available?

A: Yes. The AWLP 40/3,2-G is available in tray packaging with 3135 units in stock. The 1-746610-9 is available in bulk packaging with 2338 units in stock. Both parts are active products from their respective manufacturers.

Q: What compliance certifications apply to the substitute parts?

A: The AWLP 40/3,2-G is RoHS3 compliant and REACH unaffected. The 1-746610-9 is RoHS compliant and REACH unaffected. Both parts carry MSL rating 1 (Unlimited) and EAR99 export classification.

Q: Can wire gauge differences affect substitution?

A: The 7840-0006PR supports 26 AWG stranded, 28 AWG solid or stranded, and 30 AWG solid wire. The AWLP 40/3,2-G does not specify wire gauge in available documentation. The 1-746610-9 supports 26-28 AWG stranded and 26-30 AWG solid wire. Wire gauge compatibility must be verified against the specific ribbon cable assembly used in the application.