OPIO1018S Equivalent & Substitute Parts

Part Overview

The OPIO1018S is a clear sub lens manufactured by Dialight, designed for use with Nichia LEDs. This lens features a 36° wide viewing angle and a 26mm diameter round form factor with flat top design. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and component sourcing.

Substiute Parts

OPIO1018S

DialightIn Stock: 794OPIO1018S Datasheet

Current PartRFQ

OPAA1OSL

DialightIn Stock: 1742OPAA1OSL Datasheet

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OPAA1WSL

DialightIn Stock: 5485OPAA1WSL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the OPIO1018S are identified based on the following critical parameters that determine functional compatibility:

• Lens Size: 26mm diameter (common across all candidates)
• Lens Style: Round with flat top (consistent form factor)
• Color: Clear (optical transmission requirement)
• Number of LEDs: 1 (single LED application)
• Mounting Type: Snap-in capability (mechanical interface)
• Moisture Sensitivity Level: MSL 1 (Unlimited) (environmental tolerance)
• Regulatory Compliance: REACH Unaffected, ECCN EAR99 (trade and environmental status)

The substitute parts OPAA1OSL and OPAA1WSL are both from the Dialight OPA series and maintain the core mechanical and environmental specifications. However, they differ in optical pattern and viewing angle characteristics, which must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both OPAA1OSL and OPAA1WSL are active production parts from Dialight, providing supply continuity for the obsolete OPIO1018S. Selection between these substitutes depends on optical pattern requirements:

OPAA1WSL maintains a wide optical pattern similar to the original OPIO1018S, with a 30° viewing angle compared to the original 36°. This part is the closest functional equivalent for applications requiring wide-angle light distribution.

OPAA1OSL provides an elliptical/oval optical pattern with 8° x 54° viewing angle characteristics, suitable for applications requiring directional light distribution in specific planes.

Both substitute parts meet the same environmental and regulatory requirements (MSL 1, REACH Unaffected, EAR99) as the original component. The snap-in mounting type and acrylic material of the substitute parts provide mechanical and optical consistency with standard Dialight sub lens assemblies.

Frequently Asked Questions (FAQ)

Q: Can OPAA1WSL directly replace OPIO1018S in existing assemblies?

A: OPAA1WSL shares the same 26mm diameter, round flat-top form factor, and snap-in mounting interface. The 30° viewing angle differs from the original 36°, which may affect light distribution characteristics in the application. Mechanical compatibility is established; optical performance must be validated against application requirements.

Q: What is the primary difference between OPAA1OSL and OPAA1WSL?

A: OPAA1OSL provides an elliptical/oval optical pattern with 8° x 54° viewing angle, while OPAA1WSL maintains a wide optical pattern with 30° viewing angle. The choice depends on whether the application requires omnidirectional wide-angle distribution or directional elliptical distribution.

Q: Are the substitute parts available in the same packaging as OPIO1018S?

A: Both OPAA1OSL and OPAA1WSL are supplied in bulk packaging, whereas the original OPIO1018S packaging specification was not provided. Packaging format should be confirmed with the supplier based on procurement requirements.

Q: Do the substitute parts meet the same environmental standards as OPIO1018S?

A: Yes. Both OPAA1OSL and OPAA1WSL maintain MSL 1 (Unlimited) moisture sensitivity level, REACH Unaffected status, and EAR99 ECCN classification, matching the environmental and regulatory profile of the original component.

Q: What is the relationship between the original OPIO1018S and the OPA series substitutes?

A: Both the OPI series (OPIO1018S) and OPA series (OPAA1OSL, OPAA1WSL) are Dialight sub lens products with compatible mechanical interfaces. The OPA series represents current production alternatives with active product status.