Equivalent & Substitute Parts for 1051QC1 Neon Panel Indicator

Part Overview

The 1051QC1 is a neon panel indicator lamp manufactured by Visual Communications Company (VCC), designed for AC applications in the 208V to 250V range. This component features a red neon lamp with a round lens and flat top design, utilizing quick connect termination for 0.187" (4.7mm) panel mounting through a 0.50" (12.70mm) round cutout.

The 1051QC1 carries a "Not For New Designs" product status, indicating that VCC has discontinued active development and support for this model line. This status necessitates identification of functionally equivalent alternatives for ongoing maintenance, repair, and new application requirements where neon indicators are specified.

Substiute Parts

1051QC1

Visual Communications Company - VCCIn Stock: 22341051QC1 Datasheet

Current PartRFQ

6561109304F

DialightIn Stock: 12656561109304F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1051QC1 is based on the following critical parameters that must remain constant or compatible:

Mechanical Compatibility:

• Panel cutout shape (round) and dimensions (0.50" / 12.70mm) must match exactly to ensure proper fit in existing panel openings
• Lens style (round with flat top) must provide equivalent visual presentation
• Termination style (quick connect 0.187" / 4.7mm) must be identical for electrical connection without rewiring

Electrical Compatibility:

• Voltage rating must encompass or match the 208V ~ 250V AC operating range
• AC ratings must be maintained for proper operation in AC circuits
• Current draw must be compatible with existing circuit design

Regulatory Compliance:

• RoHS3 compliance status must be maintained
• REACH unaffected status must be preserved

The substitute part 6561109304F from Dialight meets these critical parameters through equivalent mechanical dimensions, matching termination style, compatible voltage rating (230V within the 208V ~ 250V range), and identical regulatory compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The 1051QC1 neon panel indicator is classified as "Not For New Designs," indicating that VCC has transitioned this product line to end-of-life status. For applications requiring panel-mounted red indicators in the 208V to 250V AC range, the 6561109304F from Dialight provides a direct mechanical and electrical substitute.

Selection Basis:

The 6561109304F maintains all critical mechanical parameters: identical 0.50" (12.70mm) round panel cutout, matching round flat-top lens style, and compatible quick connect 0.187" (4.7mm) termination. Electrically, the 230V AC rating falls within the 1051QC1 operating range, and both components maintain AC ratings for proper circuit operation.

Both components achieve ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current manufacturing and distribution. The 6561109304F is currently in active production status, ensuring long-term availability and supply chain stability.

The primary technical difference is the shift from neon to LED technology in the 6561109304F. This transition results in lower current consumption (3mA versus unspecified neon current) and enhanced ingress protection (IP66/IP67, NEMA 4X). These characteristics represent functional improvements suitable for panel mounting applications.

Frequently Asked Questions (FAQ)

Q: Can the 6561109304F directly replace the 1051QC1 without panel modifications?

A: Yes. Both components share identical panel cutout dimensions (0.50" / 12.70mm round) and lens style (round with flat top). No panel drilling or mechanical alteration is required for physical installation.

Q: Are the electrical connections compatible between these two parts?

A: Yes. Both components utilize quick connect termination with 0.187" (4.7mm) connectors. Existing wiring harnesses designed for the 1051QC1 will connect directly to the 6561109304F without modification.

Q: Does the voltage rating difference affect compatibility?

A: No. The 6561109304F operates at 230V AC, which falls within the 1051QC1 operating range of 208V to 250V AC. The substitute is rated for the midpoint of the original voltage specification, ensuring compatibility across the full operating range.

Q: What is the primary technical difference between these components?

A: The 1051QC1 uses neon lamp technology, while the 6561109304F uses LED technology. Both produce red light for panel indication. The LED version draws lower current (3mA) and provides enhanced ingress protection (IP66/IP67, NEMA 4X).

Q: Are both components compliant with current regulatory standards?

A: Yes. Both the 1051QC1 and 6561109304F are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for manufacturing and distribution.

Q: Why is the 1051QC1 marked "Not For New Designs"?

A: This designation indicates that VCC has discontinued active development and support for this product line. Existing inventory remains available, but the manufacturer recommends using alternative products for new applications. The 6561109304F represents the current-generation equivalent for this application.

Q: Is the 6561109304F available in current inventory?

A: Yes. The 6561109304F is in active production status with 1,182 pieces available in new original stock, ensuring reliable supply for both replacement and new application requirements.