Equivalent & Substitute Parts for VCC 7511B18 Light Pipe

Part Overview

The VCC 7511B18 is a 3-position high-profile light pipe designed for rigid board mount applications with press-fit, right-angle configuration. This component features a clear rectangular lens with 1.78mm dimensions and is classified as obsolete. Due to its obsolete status, identifying functionally equivalent substitute components is essential for ongoing production support and design continuity. The substitute part identified maintains the core functional characteristics required for direct replacement in compatible applications.

Substiute Parts

7511B18

Visual Communications Company - VCCIn Stock: 8347511B18 Datasheet

Current PartRFQ

5151108F

DialightIn Stock: 17775151108F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part Dialight 5151108F qualifies as a functional equivalent based on the following critical parameters:

Matching Parameters:

• Configuration: 3 High (identical LED position count)
• Type: Rigid (same structural material classification)
• Mounting Type: Board Mount, Press Fit, Right Angle (identical PCB integration method)
• Color: Clear (identical optical transmission)
• RoHS Status: ROHS3 Compliant (equivalent environmental compliance)
• MSL Rating: 1 (Unlimited) (identical moisture sensitivity classification)
• REACH Status: REACH Unaffected (equivalent regulatory status)
• ECCN: EAR99 (identical export classification)
• HTSUS: 3926.90.9985 (identical tariff classification)

Parameter Variance:

• Lens Style: Rectangle (VCC 7511B18) vs. Square with Flat Top (Dialight 5151108F)
• Lens Size: 1.78mm (VCC 7511B18) vs. 3mm (Dialight 5151108F)

The lens style and size differences represent the primary physical distinctions between these components. These variations affect the optical output geometry and may impact visual indicator appearance in the end application.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The VCC 7511B18 is classified as obsolete, while the Dialight 5151108F maintains active production status. This status differential is the primary driver for substitution evaluation.

Compliance Alignment: Both components satisfy identical regulatory requirements: ROHS3 compliance, REACH unaffected status, and EAR99 export classification. Moisture sensitivity ratings are equivalent at MSL 1 (Unlimited), indicating no special storage or handling constraints for either component.

Functional Compatibility: The substitute part maintains identical configuration (3 High), type (Rigid), and mounting methodology (Board Mount, Press Fit, Right Angle). These parameters ensure mechanical and electrical compatibility within the PCB assembly process.

Physical Dimension Variance: The lens size difference (1.78mm vs. 3mm) and lens style difference (Rectangle vs. Square with Flat Top) represent design-level distinctions. These variations affect the visual indicator appearance and optical output geometry. Component selection must account for these physical differences in the context of the specific application's visual indicator requirements and PCB layout constraints.

Frequently Asked Questions (FAQ)

Q: Can the Dialight 5151108F directly replace the VCC 7511B18 in all applications?

A: The Dialight 5151108F maintains functional equivalence in mounting type, configuration, and regulatory compliance. However, the lens size (3mm vs. 1.78mm) and lens style (Square with Flat Top vs. Rectangle) differences require verification against specific application requirements, particularly regarding visual indicator appearance and PCB layout constraints.

Q: What are the critical parameters for determining substitution compatibility?

A: The critical parameters are: Configuration (3 High), Type (Rigid), Mounting Type (Board Mount, Press Fit, Right Angle), Color (Clear), RoHS Status (ROHS3 Compliant), and MSL Rating (1 Unlimited). These parameters define the core functional and regulatory equivalence between components.

Q: Does the lens size difference affect electrical performance?

A: Lens size affects optical output geometry and visual indicator appearance. Electrical performance characteristics are not specified in the provided parameters. Component selection must consider the specific application's visual indicator requirements.

Q: Are there packaging differences between these components?

A: The VCC 7511B18 is specified with dash packaging notation, while the Dialight 5151108F is specified as Bulk packaging. Packaging differences may affect procurement, handling, and inventory management but do not affect functional compatibility.

Q: What is the significance of the product status difference?

A: The VCC 7511B18 is obsolete, indicating discontinued production. The Dialight 5151108F is active, ensuring ongoing availability and supply chain continuity for new production requirements.