Equivalent & Substitute Parts for VCC 2112 Incandescent Lamp

Part Overview

The VCC 2112 is an incandescent lamp designed for indicator and signal applications requiring a 6.3V power supply. This component features a clear round lens with domed top and wire terminal leads, delivering 0.55 MSCP (Mean Spherical Candle Power) output. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

2112

Visual Communications Company - VCCIn Stock: 9272112 Datasheet

Current PartRFQ

2181

JKL Components CorporationIn Stock: 21672181 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VCC 2112 is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Voltage Rating: 6.3V (electrical compatibility)
• Lens Style: Round with Domed Top (mechanical and optical fit)
• Lens Size: RT-1 3/4 (physical housing compatibility)
• Lead Style: Wire Terminal (circuit connection compatibility)
• Type: Incandescent (operational technology)
• Color: Clear (optical transmission requirement)
• RoHS Status: ROHS3 Compliant (regulatory compliance)

Allowable Variation:

• MSCP (Mean Spherical Candle Power): Substitutes may vary from the original 0.55 MSCP value within the constraints of the same lens form factor and electrical specifications. Luminous intensity variation is acceptable provided the substitute maintains the same physical and electrical interface.

The JKL Components Corporation part 2181 qualifies as a substitute based on matching all mandatory parameters, with a documented MSCP variation of 0.4 compared to the original 0.55.

Parameter Comparison

Engineering Selection Recommendations

VCC 2112 (Original Part): The VCC 2112 is classified as obsolete. While 896 pieces remain in current inventory, this part is no longer in active production. Selection of this part is appropriate only for existing stock utilization or legacy system maintenance where exact original specifications are mandated.

JKL 2181 (Substitute Part): The JKL 2181 is classified as active production status and is recommended for new designs and ongoing procurement. This substitute meets all mandatory electrical, mechanical, and regulatory requirements:

• Identical voltage rating (6.3V)
• Identical lens form factor (Round with Domed Top, RT-1 3/4)
• Identical lead configuration (Wire Terminal)
• ROHS3 compliance maintained
• Higher inventory availability (2150 pieces)

The documented MSCP variation (0.4 versus 0.55) represents a 27% reduction in luminous intensity. This variation must be evaluated within the context of the specific application's brightness requirements. The substitute is electrically and mechanically interchangeable; brightness performance differences must be assessed by the design engineer.

Frequently Asked Questions (FAQ)

Q: Can the JKL 2181 be used as a direct replacement for the VCC 2112 in existing assemblies?

A: Yes, the JKL 2181 is mechanically and electrically compatible. Both parts share identical voltage ratings (6.3V), lens form factors (Round with Domed Top, RT-1 3/4), and wire terminal leads. The substitute will fit existing sockets and circuit connections without modification. However, the reduced MSCP output (0.4 versus 0.55) will result in lower brightness; verify this is acceptable for your application.

Q: What is the significance of the MSCP difference between these parts?

A: MSCP (Mean Spherical Candle Power) measures luminous intensity. The JKL 2181 produces 0.4 MSCP compared to the VCC 2112's 0.55 MSCP. This 27% reduction in brightness output may be acceptable for indicator applications with moderate visibility requirements but should be evaluated for applications requiring maximum brightness or long-distance visibility.

Q: Are both parts RoHS compliant?

A: Yes, both the VCC 2112 and JKL 2181 are ROHS3 compliant, meeting current environmental and regulatory standards for electronic components.

Q: Why is the VCC 2112 classified as obsolete?

A: The VCC 2112 is no longer in active production by Visual Communications Company. The obsolete status indicates the manufacturer has discontinued this part. The JKL 2181 remains in active production, making it the preferred choice for new procurement and long-term system support.

Q: What packaging is provided with the JKL 2181?

A: The JKL 2181 is supplied in box packaging. Confirm packaging specifications meet your receiving, storage, and assembly requirements.

Q: Are there any other electrical parameters that differ between these parts?

A: No. Both parts share identical voltage ratings, lead styles, and electrical specifications. The only documented variation is the MSCP output, which is a luminous intensity characteristic rather than an electrical parameter.