FN15977_RONDA-WAS2 Equivalent & Substitute Parts

Part Overview

The FN15977_RONDA-WAS2 is a lens with holder assembly manufactured by Ledil, designed for single LED applications. This component features a clear acrylic construction with an asymmetrical optical pattern and round flat-top lens geometry. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and procurement planning. Substitute parts must maintain compatibility with the same mounting interface and optical performance envelope.

Substiute Parts

FN15977_RONDA-WAS2

LedilIn Stock: 806FN15977_RONDA-WAS2 Datasheet

Current PartRFQ

F15862_RONDA-WAS2

LedilIn Stock: 1233F15862_RONDA-WAS2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FN15977_RONDA-WAS2 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Manufacturer: Ledil (same manufacturer ensures mechanical and optical interface compatibility)
• Series: Ronda (ensures socket mounting compatibility)
• Mounting Type: Socket (physical interface requirement)
• Number of LEDs: 1 (single LED application)
• Material: Acrylic (optical and environmental performance)
• Color: Clear (optical transmission requirement)

Allowable Variations:

• Lens Size: May differ based on application space constraints
• Optical Pattern: May vary (asymmetrical, wide, or other patterns) depending on beam distribution requirements
• Lens Transparency: May differ (diffused or standard) based on light distribution needs
• Product Status: Active status preferred for long-term availability

The identified substitute F15862_RONDA-WAS2 shares the same manufacturer, series, mounting type, material, and color specification, confirming functional equivalence within the Ronda socket lens family.

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration: Product Status

The FN15977_RONDA-WAS2 is classified as obsolete. The F15862_RONDA-WAS2 maintains active product status with Ledil, ensuring continued availability and manufacturing support.

Compliance Alignment

Both parts maintain identical RoHS3 compliance and REACH unaffected status, confirming regulatory equivalence for applications subject to these standards.

Design Integration

Selection between these parts depends on optical pattern requirements. The main part provides asymmetrical beam distribution, while the substitute delivers wide beam distribution. Lens diameter differs (69.9mm versus 53.9mm), requiring mechanical integration verification within the target application envelope.

Inventory Considerations

The substitute part F15862_RONDA-WAS2 is available in higher quantity (1148 Pcs) compared to the main part (745 Pcs), supporting production continuity and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can F15862_RONDA-WAS2 directly replace FN15977_RONDA-WAS2 in existing designs?

A: Direct replacement requires verification of two factors: (1) mechanical fit within the application housing, as the substitute has a smaller lens diameter (53.9mm versus 69.9mm), and (2) optical pattern compatibility, as the substitute provides wide distribution instead of asymmetrical distribution.

Q: What is the significance of the different lens sizes?

A: Lens diameter directly affects the optical aperture and light collection area. The 69.9mm main part and 53.9mm substitute are not interchangeable without mechanical redesign of the mounting structure.

Q: Are both parts compatible with the same LED manufacturers?

A: The main part specifies compatibility with Bridgelux, Citizen, and Cree LEDs. The substitute part does not list specific LED manufacturer compatibility in the provided data. Verify LED compatibility independently for the substitute part.

Q: What is the difference between asymmetrical and wide optical patterns?

A: Asymmetrical patterns direct light output in a non-uniform distribution optimized for specific directional applications. Wide patterns distribute light across a broader viewing angle. Selection depends on the target application's beam distribution requirements.

Q: Why is the substitute part in active status while the main part is obsolete?

A: Ledil has discontinued the FN15977_RONDA-WAS2 and maintains the F15862_RONDA-WAS2 as the current product offering within the Ronda socket lens family. Active status ensures ongoing manufacturing and supply availability.

Q: Are packaging differences significant for component selection?

A: The main part packaging is listed as unspecified, while the substitute is packaged in trays. Packaging affects handling, storage, and integration into production workflows but does not impact functional performance.