Equivalent & Substitute Parts for 139A-404G

Part Overview

The 139A-404G is a green lens cap with panel mount threaded base manufactured by Visual Communications Company (VCC). This component is classified as obsolete, necessitating identification of active substitute parts to maintain supply chain continuity for applications requiring green panel-mounted lens caps with threaded bases and diffused optical characteristics.

Substiute Parts

139A-404G

Visual Communications Company - VCCIn Stock: 836139A-404G Datasheet

Current PartRFQ

1280972003

DialightIn Stock: 7601280972003 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 139A-404G is determined by the following critical parameters:

• Color: Green
• Lens Diameter: 14.68mm
• Lens Transparency: Diffused
• Mounting Configuration: Panel Mount with Threaded Base
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected
• Moisture Sensitivity: MSL 1 (Unlimited)

The substitute part 1280972003 (Dialight) satisfies all mandatory substitution criteria. Both parts share identical lens diameter, color, transparency, mounting type, and regulatory compliance status. The lens style differs (domed top versus stovepipe top); however, both configurations maintain the same optical diffusion characteristics and panel mount threaded base interface.

Parameter Comparison

Engineering Selection Recommendations

The 1280972003 (Dialight) serves as a direct substitute for the obsolete 139A-404G. Both components maintain identical electrical and mechanical interface specifications, including lens diameter, color, transparency, and mounting configuration. The substitute part is currently in active production status with confirmed inventory availability (672 pieces), ensuring supply chain reliability.

Both parts satisfy ROHS3 and REACH compliance requirements, supporting applications with regulatory mandates. The moisture sensitivity level of MSL 1 (Unlimited) indicates no special storage or handling requirements for either component.

Frequently Asked Questions (FAQ)

Q: Can the 1280972003 directly replace the 139A-404G in existing applications?

A: Yes. Both parts share identical lens diameter (14.68mm), color (green), transparency (diffused), and mounting configuration (panel mount with threaded base). The lens style differs (domed versus stovepipe top), but both maintain equivalent optical diffusion characteristics and mechanical interface compatibility.

Q: Are there compliance differences between the main part and substitute?

A: No. Both the 139A-404G and 1280972003 are ROHS3 compliant and REACH unaffected, supporting equivalent regulatory requirements.

Q: What is the significance of the lens style difference?

A: The lens style difference (domed top versus stovepipe top) affects only the physical profile and aesthetic appearance. Both configurations maintain the same diffused optical transparency and 14.68mm diameter interface, ensuring functional equivalence in panel-mounted applications.

Q: Does the substitute part require different handling or storage?

A: No. Both components have Moisture Sensitivity Level 1 (Unlimited), indicating no special environmental controls are required for storage or handling.

Q: Is the substitute part currently available?

A: Yes. The 1280972003 is in active production status with 672 pieces in current inventory, providing immediate availability for component procurement.