MB403-G28-CG LED Lamp Equivalent & Substitute Parts

Part Overview

The MB403-G28-CG is an active-status LED lamp replacement designed for miniature bayonet (BA9S) applications. This green LED lamp operates at 28V forward voltage and delivers 2400 millicandela output with a 520nm wavelength. The T-3 1/4 form factor enables direct replacement in general-purpose lighting circuits requiring miniature bayonet base compatibility. Substitute parts are identified based on matching mechanical form factor, base type, color specification, and optical output while accommodating different voltage requirements within the same product series.

Substiute Parts

MB403-G28-CG

Visual Communications Company - VCCIn Stock: 1088MB403-G28-CG Datasheet

Current PartRFQ

MB403-G24-CG

Visual Communications Company - VCCIn Stock: 900MB403-G24-CG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB403-G28-CG is determined by the following criteria:

Mandatory Matching Parameters:

• Base Type: Miniature Bayonet (BA9S)
• Size / Dimension: T-3 1/4
• Color: Green
• Wavelength: 520nm
• Millicandela Rating: 2400mcd
• Configuration: Single
• Series: MB403

Allowable Variation:

• Voltage - Forward (Vf): Different voltage ratings within the same series are permitted when the substitute part operates within the specified circuit voltage range of the application.

The MB403-G24-CG qualifies as a parametric equivalent because it maintains identical mechanical, optical, and electrical specifications except for forward voltage, which is reduced from 28V to 24V. Both parts share the same base product number (MB403), series designation, and all critical optical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection Criteria:

1. Voltage Compatibility: Select MB403-G28-CG for 28V circuit applications. Select MB403-G24-CG for 24V circuit applications. Forward voltage must match the circuit supply voltage specification.

2. Compliance Status: Both parts maintain active product status and are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component deployment.

3. Optical and Mechanical Equivalence: Both parts deliver identical 2400mcd output at 520nm wavelength in T-3 1/4 form factor with BA9S base type, ensuring functional equivalence within their respective voltage classes.

4. Inventory Availability: MB403-G28-CG: 1049 pieces in stock. MB403-G24-CG: 851 pieces in stock. Both parts are available as new original components in bulk packaging.

Frequently Asked Questions (FAQ)

Q: Can MB403-G24-CG replace MB403-G28-CG in a 28V circuit?

A: No. The MB403-G24-CG is rated for 24V forward voltage operation. Installing it in a 28V circuit will result in overvoltage stress and component failure. Voltage rating must match circuit specification.

Q: Can MB403-G28-CG replace MB403-G24-CG in a 24V circuit?

A: No. The MB403-G28-CG is rated for 28V forward voltage operation. Installing it in a 24V circuit will result in insufficient forward voltage and reduced or non-functional operation. Voltage rating must match circuit specification.

Q: Are the optical outputs identical between these parts?

A: Yes. Both parts deliver 2400 millicandela at 520nm wavelength. Optical output is identical when each part operates within its specified voltage range.

Q: Do both parts use the same base type?

A: Yes. Both parts use the Miniature Bayonet (BA9S) base type and are mechanically compatible with BA9S sockets.

Q: What is the form factor of these lamps?

A: Both parts use T-3 1/4 form factor, which is a standard miniature lamp envelope size.

Q: Are there any moisture sensitivity considerations?

A: No. Moisture Sensitivity Level (MSL) is not applicable for both parts.

Q: What is the primary difference between these substitute parts?

A: The only difference is forward voltage: MB403-G28-CG operates at 28V, while MB403-G24-CG operates at 24V. All other parameters are identical.