Dialight 5855225 LED Cluster T3 1/4 Red 660nm 28V Equivalent & Substitute Parts

Part Overview

The Dialight 5855225 is a red LED cluster lamp replacement with miniature bayonet (BA9S) base, designed for 28V applications. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations. The part operates at 660nm wavelength with 560mcd luminous intensity and is suitable for indicator lights and incandescent lamp replacements in 28V circuits.

Substiute Parts

5855225

DialightIn Stock: 7995855225 Datasheet

Current PartRFQ

5855225F

DialightIn Stock: 10475855225F Datasheet

DirectRFQ

5855215F

DialightIn Stock: 10305855215F Datasheet

Parametric EquivalentRFQ

5855256F

DialightIn Stock: 13135855256F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Dialight 5855225 is determined by the following critical parameters:

• Base Type: Miniature Bayonet (BA9S)
• Wavelength: 660nm
• Voltage - Forward (Vf): 28V
• Color: Red
• Size / Dimension: T - 3 1/4
• Millicandela Rating: 560mcd
• Configuration: Single

The substitute parts listed below maintain electrical and mechanical compatibility through identical or equivalent values across these parameters. Parts are grouped by their relationship to the main part number and their current product status.

Parameter Comparison

Engineering Selection Recommendations

The Dialight 5855225 is obsolete and no longer in active production. All three substitute parts—5855225F, 5855215F, and 5855256F—are active products from Dialight and maintain full electrical and mechanical compatibility with the original part across all critical parameters.

All substitute parts are ROHS3 compliant, representing an improvement over the original part's RoHS non-compliant status. This compliance upgrade is beneficial for applications subject to environmental regulations.

For new designs or system replacements, 5855225F is the direct functional equivalent, as it shares the same base product number relationship. Parts 5855215F and 5855256F are parametric equivalents that provide identical electrical and optical performance within the same series.

Frequently Asked Questions (FAQ)

Q: Can 5855225F directly replace 5855225? A: Yes. The 5855225F maintains identical electrical specifications (28V forward voltage, 660nm wavelength, 560mcd intensity), mechanical form factor (T - 3 1/4, BA9S base), and color (red). The primary difference is product status (active vs. obsolete) and improved RoHS3 compliance.

Q: What is the difference between 5855225F, 5855215F, and 5855256F? A: All three parts are parametric equivalents with identical electrical and optical characteristics. They differ in base product number designation (5855225, 5855215, and 5855256 respectively) but function identically in 28V red LED applications requiring 660nm wavelength and 560mcd output.

Q: Are there packaging differences between substitute parts? A: The original 5855225 is listed with unspecified packaging (-). All substitute parts are supplied in bulk packaging, which is standard for active production components.

Q: Does the RoHS3 compliance of substitute parts affect compatibility? A: No. RoHS3 compliance is a regulatory improvement that does not alter electrical or mechanical performance. Substitute parts with RoHS3 compliance are suitable for all applications where the original part was used.

Q: Can these parts be used interchangeably in existing assemblies? A: Yes. All substitute parts share identical base type (BA9S miniature bayonet), size (T - 3 1/4), voltage rating (28V), wavelength (660nm), and luminous intensity (560mcd), ensuring direct mechanical and electrical interchangeability.