FP11955_LISA2-WWW-CLIP Equivalent & Substitute Parts

Part Overview

The FP11955_LISA2-WWW-CLIP is a lens with holder assembly manufactured by Ledil, designed for single LED applications. This component features a clear optical element with an 80° wide viewing angle and a 9.9mm diameter round profile with flat top geometry. The part is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing procurement and design applications. Substitute parts must maintain compatibility with the same LED manufacturers and preserve the optical and mechanical characteristics required for the original application.

Substiute Parts

FP11955_LISA2-WWW-CLIP

LedilIn Stock: 1164FP11955_LISA2-WWW-CLIP Datasheet

Current PartRFQ

FP11952_LISA2-WWW-CLIP

LedilIn Stock: 844FP11952_LISA2-WWW-CLIP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FP11955_LISA2-WWW-CLIP is determined by the following critical parameters:

Primary Compatibility Criteria:

• Series designation (LISA2)
• Lens size (9.9mm diameter)
• Lens style (Round with Flat Top)
• Optical pattern classification (Wide)
• Viewing angle range (80° or overlapping range)
• Color specification (Clear)
• Single LED configuration
• Compatible LED manufacturers (Nichia and related brands)

Regulatory & Environmental Compliance:

• RoHS3 compliance requirement
• MSL rating of 1 (Unlimited)
• REACH unaffected status

The substitute part FP11952_LISA2-WWW-CLIP meets these criteria through identical series, lens dimensions, style, and color specifications. The viewing angle range of 76° ~ 80° encompasses the original 80° specification, maintaining optical performance within the wide pattern classification. Both parts are active or available inventory alternatives suitable for direct substitution in applications originally designed for the FP11955_LISA2-WWW-CLIP.

Parameter Comparison

Engineering Selection Recommendations

The FP11955_LISA2-WWW-CLIP is classified as obsolete and no longer in active production. The FP11952_LISA2-WWW-CLIP is the direct substitute part, currently in active status with confirmed inventory availability (754 pieces in stock).

Selection Basis:

The FP11952_LISA2-WWW-CLIP maintains full mechanical and optical compatibility through identical LISA2 series designation, 9.9mm lens diameter, round flat-top geometry, and wide optical pattern classification. The viewing angle specification of 76° ~ 80° directly encompasses the original 80° requirement, ensuring equivalent light distribution characteristics.

Both parts satisfy identical regulatory requirements: ROHS3 compliance, MSL rating 1 (unlimited moisture sensitivity), and REACH unaffected status. The substitute part extends LED manufacturer compatibility to include Lumileds in addition to Nichia, providing broader application flexibility.

The FP11952_LISA2-WWW-CLIP is supplied in bag packaging and specifies acrylic material with diffused lens transparency, representing the active production variant of the LISA2 lens family. This part is suitable for direct substitution in all applications originally specified for the FP11955_LISA2-WWW-CLIP.

Frequently Asked Questions (FAQ)

Q: Can FP11952_LISA2-WWW-CLIP directly replace FP11955_LISA2-WWW-CLIP in existing designs?

A: Yes. Both parts share identical series designation, lens diameter (9.9mm), lens style (round with flat top), color (clear), and optical pattern (wide). The viewing angle range of 76° ~ 80° on the substitute part encompasses the original 80° specification. Mechanical and optical compatibility is maintained.

Q: What is the difference in viewing angle specification between these parts?

A: The FP11955_LISA2-WWW-CLIP specifies a fixed 80° viewing angle. The FP11952_LISA2-WWW-CLIP specifies a range of 76° ~ 80°. This range includes the original specification, ensuring equivalent optical performance for wide-pattern light distribution applications.

Q: Are there differences in LED manufacturer compatibility?

A: The FP11955_LISA2-WWW-CLIP is specified for Nichia LEDs. The FP11952_LISA2-WWW-CLIP is compatible with both Lumileds and Nichia LEDs. This expanded compatibility does not restrict use with Nichia devices and provides additional options for LED selection.

Q: What is the significance of the diffused lens transparency on the substitute part?

A: The FP11952_LISA2-WWW-CLIP specifies diffused lens transparency, while the original part does not specify this parameter. Diffused transparency affects light scattering characteristics within the wide optical pattern. This specification should be evaluated against the original application's light distribution requirements.

Q: Are regulatory and compliance certifications identical?

A: Yes. Both parts are ROHS3 compliant, carry MSL rating 1 (unlimited), and are REACH unaffected. Regulatory compliance is equivalent for both parts.

Q: What packaging differences exist?

A: The FP11952_LISA2-WWW-CLIP is supplied in bag packaging. The original part does not specify packaging format. Bag packaging is standard for component distribution and does not affect functional compatibility.

Q: Is the acrylic material specification on the substitute part significant?

A: The FP11952_LISA2-WWW-CLIP specifies acrylic material. The original part does not specify material composition. Acrylic is a standard optical material for LED lens applications and is compatible with the wide optical pattern and clear color specification.