LED Replacement T-3 1/4 Bayonet Red 120MBL-R-CR Equivalent & Substitute Parts

Part Overview

The 120MBL-R-CR is an LED lamp replacement unit manufactured by Visual Communications Company (VCC) designed for general purpose lighting applications. This T-3 1/4 form factor LED features a bayonet base and operates at 120V, providing red illumination for multiple bayonet base lamp configurations. The product is currently active in production with 712 units in stock. Substitute parts are identified to address inventory availability, voltage requirement variations, or application-specific electrical specifications while maintaining mechanical and optical compatibility.

Substiute Parts

120MBL-R-CR

Visual Communications Company - VCCIn Stock: 772120MBL-R-CR Datasheet

Current PartRFQ

1835LS2-R-CR

Visual Communications Company - VCCIn Stock: 8441835LS2-R-CR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 120MBL-R-CR are identified based on strict parameter matching within the allowed electrical and mechanical specifications for LED lamp replacements with bayonet bases. The substitution logic is governed by the following critical parameters:

Mechanical Compatibility Parameters:

• Size / Dimension: T-3 1/4 (must match exactly for physical fit)
• Base Type: Bayonet (must match exactly for socket compatibility)
• Configuration: Single (must match exactly for lamp count)

Optical Compatibility Parameters:

• Color: Red (must match exactly for light output specification)

Electrical Compatibility Parameters:

• Voltage - Forward (Vf) (Typ): Voltage rating must be appropriate for the target circuit application

Regulatory Compliance Parameters:

• RoHS Status: ROHS3 Compliant (must maintain compliance)
• REACH Status: REACH Unaffected (must maintain compliance)

The identified substitute part 1835LS2-R-CR maintains identical mechanical and optical parameters (T-3 1/4 bayonet base, red color, single configuration) but operates at 48V instead of 120V. This part is suitable for substitution only in applications where the circuit voltage requirement is 48V DC.

Parameter Comparison

Engineering Selection Recommendations

For 120V AC Applications: Select 120MBL-R-CR. This part is the primary specification for circuits operating at 120V. Current inventory: 712 units. Product status is active with full regulatory compliance (ROHS3 Compliant, REACH Unaffected).

For 48V DC Applications: Select 1835LS2-R-CR. This part is the appropriate substitute for circuits operating at 48V DC. Current inventory: 772 units. Product status is active with identical regulatory compliance (ROHS3 Compliant, REACH Unaffected).

Both parts maintain identical mechanical fit (T-3 1/4 bayonet base), optical output (red color), and configuration (single lamp). Selection between these parts is determined solely by the circuit voltage requirement. Do not use 1835LS2-R-CR in 120V circuits or 120MBL-R-CR in 48V circuits.

Frequently Asked Questions (FAQ)

Q: Can 1835LS2-R-CR be used as a direct replacement for 120MBL-R-CR?

A: No. While both parts share identical mechanical (T-3 1/4 bayonet base) and optical (red color) specifications, they operate at different voltages. The 120MBL-R-CR is rated for 120V, while the 1835LS2-R-CR is rated for 48V DC. Use 1835LS2-R-CR only in 48V circuits.

Q: What determines compatibility between these LED lamp replacements?

A: Compatibility is determined by four critical parameters: (1) Size/Dimension (T-3 1/4), (2) Base Type (Bayonet), (3) Color (Red), and (4) Voltage rating (120V or 48V). All other parameters must also match for regulatory compliance.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both 120MBL-R-CR and 1835LS2-R-CR are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic components.

Q: What is the packaging format for these parts?

A: Both parts are supplied in Bulk packaging format.

Q: Can these parts replace multiple bayonet base lamp types?

A: Yes. Both the 120MBL-R-CR and 1835LS2-R-CR are designed to replace multiple bayonet base lamp configurations within their respective voltage ratings, provided the mechanical and optical specifications match.

Q: What is the current inventory status?

A: 120MBL-R-CR: 712 units in stock. 1835LS2-R-CR: 772 units in stock. Both are new original parts.