4331 Red Lens Cap Snap-In Equivalent & Substitute Parts

Part Overview

The 4331 is a red lens cap with wide optical pattern designed for general-purpose snap-in mounting applications. Manufactured by Visual Communications Company (VCC), this component features a round lens with flat top geometry and 4.83mm diameter polycarbonate construction. The 4331 is classified as obsolete product status, necessitating identification of active equivalent components to maintain design continuity and ensure supply chain availability for new production and field replacement requirements.

Substiute Parts

4331

Visual Communications Company - VCCIn Stock: 7794331 Datasheet

Current PartRFQ

SML_190_RTP

Visual Communications Company - VCCIn Stock: 2017SML_190_RTP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 4331 is based on the following critical parameters that must align between the main part and substitute components:

Primary Compatibility Criteria:

• Color: Red
• Lens Style: Round with Flat Top
• Material: Polycarbonate
• Mounting Type: Snap-In (primary requirement)
• Regulatory Compliance: ROHS3 Compliant and REACH Unaffected status

Secondary Compatibility Considerations:

• Lens Size: 4.83mm diameter (main part) versus 4.9mm diameter (substitute) represents a minor dimensional variance within acceptable tolerance for general-purpose applications
• Optical Pattern: Wide (main part) versus Fresnel Ring (substitute) indicates different light distribution characteristics but maintains red lens cap functionality
• Mounting Configuration: Main part specifies Snap-In; substitute specifies Panel Mount with Snap-In capability, providing expanded mounting flexibility

The SML_190_RTP substitute maintains core functional equivalence through shared material composition, color specification, lens geometry classification, and snap-in mounting capability while offering active product status and enhanced inventory availability.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution:

The SML_190_RTP lens cap serves as the functional equivalent for the obsolete 4331 based on alignment of core electrical and mechanical parameters. Both components are manufactured by VCC, feature identical red color specification, round flat-top lens geometry, polycarbonate material composition, and snap-in mounting capability. Both components maintain ROHS3 compliance and REACH unaffected regulatory status, ensuring compatibility with current environmental and safety standards.

Dimensional Considerations:

The lens diameter increases from 4.83mm (4331) to 4.9mm (SML_190_RTP), representing a 0.07mm variance. This dimensional difference is within typical manufacturing tolerances for general-purpose lens cap applications and does not preclude functional substitution in standard mounting configurations.

Optical Pattern Variance:

The 4331 specifies wide optical pattern while the SML_190_RTP features fresnel ring optical pattern. These represent different light distribution characteristics. Selection between these patterns depends on specific application requirements for light diffusion and viewing angle performance.

Mounting Configuration:

The SML_190_RTP provides dual mounting capability (Panel Mount and Snap-In) compared to the 4331 snap-in specification alone. This expanded mounting flexibility accommodates broader application scenarios without compromising snap-in compatibility.

Product Status:

The SML_190_RTP maintains active product status with 1984 units in stock, providing reliable supply chain continuity compared to the obsolete 4331 status with limited remaining inventory of 722 units.

Frequently Asked Questions (FAQ)

Q: Can the SML_190_RTP directly replace the 4331 in existing designs?

A: The SML_190_RTP functions as a direct substitute for snap-in mounting applications. Both components share identical color, lens style, material composition, and snap-in mounting type. The 0.07mm lens diameter increase and optical pattern difference (wide versus fresnel ring) do not prevent functional substitution in general-purpose applications. Verification of specific optical performance requirements is necessary only if the application depends on precise wide-angle light distribution characteristics.

Q: What is the significance of the optical pattern difference between wide and fresnel ring?

A: Optical pattern determines light distribution characteristics. Wide pattern provides broad light diffusion, while fresnel ring pattern uses concentric ring structures for specific light focusing or diffusion effects. Selection depends on the intended application's light distribution requirements. Both patterns are compatible with red lens cap functionality for general-purpose use.

Q: Does the SML_190_RTP panel mount capability affect snap-in compatibility?

A: No. The SML_190_RTP supports both panel mount and snap-in mounting types. The snap-in capability remains fully compatible with applications designed for the 4331 snap-in configuration. The additional panel mount option provides expanded flexibility for alternative mounting scenarios without compromising existing snap-in applications.

Q: Are there regulatory compliance differences between the 4331 and SML_190_RTP?

A: Both components maintain identical regulatory status: ROHS3 compliant and REACH unaffected. No compliance barriers exist for substitution. Both components carry EAR99 ECCN classification.

Q: What inventory considerations apply to this substitution?

A: The 4331 is obsolete with 722 units remaining in stock. The SML_190_RTP is active product with 1984 units in stock, providing superior long-term supply chain availability for new production and field replacement applications.

Q: Is the 0.07mm lens diameter difference significant for mechanical fit?

A: The lens diameter increases from 4.83mm to 4.9mm. This variance falls within standard manufacturing tolerances for general-purpose lens cap applications and does not typically create mechanical fit issues in snap-in mounting configurations. Application-specific tolerance requirements should be evaluated if the design incorporates tight dimensional constraints.