MB403-W12-CW-BP LED Lamp Equivalent & Substitute Parts

Part Overview

The MB403-W12-CW-BP is an active-status LED lamp replacement designed for miniature bayonet (BA9S) applications. This T-3 1/4 white LED lamp operates at 12V forward voltage and delivers 1560 millicandela output for general purpose lighting applications. The part is ROHS3 compliant and REACH unaffected, making it suitable for regulated environments. Substitute parts are identified when equivalent electrical and mechanical parameters allow direct replacement within the same application category.

Substiute Parts

MB403-W12-CW-BP

Visual Communications Company - VCCIn Stock: 1228MB403-W12-CW-BP Datasheet

Current PartRFQ

MB403-W6AC-CW

Visual Communications Company - VCCIn Stock: 882MB403-W6AC-CW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MB403-W12-CW-BP are identified based on strict parameter matching within the MB403 series. The primary substitution criterion is the base type (Miniature Bayonet BA9S) and physical dimension (T-3 1/4), which ensure mechanical compatibility with existing fixtures.

The identified substitute part, MB403-W6AC-CW, shares the following parameters with the main part:

• Base Type: Miniature Bayonet (BA9S)
• Size / Dimension: T-3 1/4
• Color: White
• Millicandela Rating: 1560mcd
• Configuration: Single
• Series: MB403
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

The key difference is the forward voltage specification: MB403-W6AC-CW operates at 6V, whereas MB403-W12-CW-BP operates at 12V. This voltage difference restricts direct interchangeability to applications where the circuit voltage matches the lamp specification.

Parameter Comparison

Engineering Selection Recommendations

Both the MB403-W12-CW-BP and MB403-W6AC-CW maintain active product status and identical compliance certifications (ROHS3 and REACH Unaffected). Selection between these parts is determined by circuit voltage requirements:

• MB403-W12-CW-BP: Select for 12V circuit applications
• MB403-W6AC-CW: Select for 6V circuit applications

Both parts share identical mechanical interfaces (BA9S base, T-3 1/4 form factor) and optical output (1560mcd white light, single configuration). The voltage specification must match the application circuit to ensure proper operation and component longevity.

Frequently Asked Questions (FAQ)

Q: Can MB403-W6AC-CW replace MB403-W12-CW-BP in any application?

A: No. The MB403-W6AC-CW operates at 6V forward voltage, while MB403-W12-CW-BP operates at 12V. Substitution is only valid when the application circuit voltage matches the lamp specification. Installing a 6V lamp in a 12V circuit or vice versa will result in improper operation.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts use the T-3 1/4 form factor with Miniature Bayonet (BA9S) base type. They are mechanically interchangeable in terms of fixture fit.

Q: Do both parts produce the same brightness?

A: Yes. Both parts deliver 1560 millicandela output with white color. Brightness performance is identical when each part operates at its specified voltage.

Q: Are there compliance differences between the substitute parts?

A: No. Both MB403-W12-CW-BP and MB403-W6AC-CW are ROHS3 compliant and REACH unaffected. Regulatory compliance is equivalent.

Q: What is the primary factor determining substitution eligibility?

A: The forward voltage specification (Vf) is the primary factor. The base type, dimension, color, and brightness must also match. Voltage mismatch prevents substitution regardless of other parameter alignment.

Q: Are both parts currently available?

A: Yes. Both parts maintain active product status with current inventory: MB403-W12-CW-BP has 1133 pieces in stock, and MB403-W6AC-CW has 808 pieces in stock.