Equivalent & Substitute Parts: 131A-303R

Part Overview

The 131A-303R is a red panel mount lens cap with threaded base manufactured by Visual Communications Company (VCC). This component is classified as obsolete, necessitating identification of active substitute parts for continued system support and procurement. The lens cap features a round domed top design with 11.13mm diameter clear polycarbonate construction, suitable for single LED applications in panel mount configurations.

Substiute Parts

131A-303R

Visual Communications Company - VCCIn Stock: 847131A-303R Datasheet

Current PartRFQ

1280931003

DialightIn Stock: 9891280931003 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 131A-303R is determined by the following critical parameters:

Primary Compatibility Criteria:

• Color: Red
• Mounting Type: Panel Mount with Threaded Base
• Lens Transparency: Clear
• Number of LEDs: 1
• Type: Lens Cap

Secondary Considerations:

• Lens Size: 11.13mm diameter (primary specification)
• Lens Style: Round configuration
• Material composition and optical properties
• Regulatory compliance (RoHS, REACH, ECCN)

The substitute part 1280931003 (Dialight) satisfies the primary compatibility criteria through matching color, mounting configuration, transparency, and LED count. Variations in lens style (stovepipe versus domed top) and lens diameter (14.68mm versus 11.13mm) represent design differences that must be evaluated within specific application contexts.

Parameter Comparison

Engineering Selection Recommendations

For Active Production Systems: The 1280931003 (Dialight) is the designated substitute for the obsolete 131A-303R. Both components maintain REACH Unaffected status and EAR99 export classification, ensuring regulatory continuity. The Dialight part is currently in active production status with confirmed inventory availability (909 units).

Compliance Considerations: The 131A-303R carries ROHS3 Compliant certification. The 1280931003 lists RoHS Status as "Not applicable," which requires verification against your specific system RoHS requirements before implementation.

Physical Dimensional Differences: The lens diameter increases from 11.13mm to 14.68mm, and the lens profile changes from domed to stovepipe configuration. These dimensional variations necessitate mechanical fit validation within the target panel mount application.

Procurement Strategy: Given the obsolete status of the 131A-303R and active status of the 1280931003, new designs should specify the Dialight component. Existing inventory of the VCC part (787 units) may support legacy system maintenance during transition periods.

Frequently Asked Questions (FAQ)

Q: Can the 1280931003 directly replace the 131A-303R in existing assemblies?

A: Direct mechanical and electrical compatibility exists for the core function (red lens cap, single LED, panel mount threaded base). However, the 3.55mm diameter increase (14.68mm versus 11.13mm) and lens profile change (stovepipe versus domed) require physical fit verification in the specific panel mount application.

Q: What is the significance of the lens style difference (domed versus stovepipe)?

A: Lens style affects light diffusion characteristics and viewing angle properties. The domed top of the 131A-303R and stovepipe top of the 1280931003 represent different optical geometries. Application-specific light distribution requirements must be evaluated.

Q: Are there regulatory compliance differences between these parts?

A: Both parts maintain REACH Unaffected and EAR99 classifications. The 131A-303R is ROHS3 Compliant, while the 1280931003 lists RoHS as "Not applicable." Verify RoHS requirements for your specific application before substitution.

Q: Why is the 131A-303R listed as obsolete?

A: Obsolete status indicates the manufacturer (VCC) has discontinued production. The 1280931003 (Dialight) represents the active equivalent for ongoing procurement and new designs.

Q: What packaging differences exist?

A: The 131A-303R packaging is not specified in available documentation. The 1280931003 is supplied in bulk packaging. Confirm packaging requirements for your procurement and assembly processes.

Q: Are there inventory considerations for this substitution?

A: The 131A-303R has 787 units in stock (obsolete status). The 1280931003 has 909 units available (active status). For new production, source the Dialight component; for legacy support, the VCC inventory may provide interim supply.