Request Quote
(Ships tomorrow)
Dialight 5855525 LED Cluster T3 1/4 Yellow 592nm 28V Equivalent & Substitute Parts
Part Overview
The Dialight 5855525 is a yellow LED 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 designs. The part delivers 2100 millicandela at 592nm wavelength and is configured as a single LED cluster in T-3 1/4 form factor. Direct substitutes and parametric equivalents are available from the same manufacturer in active product status.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Dialight |
| Base Type | Miniature Bayonet (BA9S) |
| Size / Dimension | T - 3 1/4 |
| Wavelength | 592nm |
| Voltage - Forward (Vf) (Typ) | 28V |
| Color | Yellow |
| Millicandela Rating | 2100mcd |
| Configuration | Single |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the Dialight 5855525 is determined by strict equivalence across the following parameters: base type (BA9S), physical form factor (T-3 1/4), wavelength (592nm), forward voltage (28V), color (yellow), millicandela rating (2100mcd), and single configuration. All substitute parts listed maintain identical electrical and mechanical specifications. The primary distinction between the main part and substitutes is product status and packaging format. The 5855525F serves as a direct manufacturer substitute with bulk packaging, while the 5855515F functions as a parametric equivalent with identical performance characteristics.
Parameter Comparison
| Parameter | 5855525 (Main) | 5855525F (Direct Substitute) | 5855515F (Parametric Equivalent) |
|---|---|---|---|
| Manufacturer | Dialight | Dialight | Dialight |
| Base Type | Miniature Bayonet (BA9S) | Miniature Bayonet (BA9S) | Miniature Bayonet (BA9S) |
| Size / Dimension | T - 3 1/4 | T - 3 1/4 | T - 3 1/4 |
| Wavelength | 592nm | 592nm | 592nm |
| Voltage - Forward (Vf) (Typ) | 28V | 28V | 28V |
| Color | Yellow | Yellow | Yellow |
| Millicandela Rating | 2100mcd | 2100mcd | 2100mcd |
| Configuration | Single | Single | Single |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant |
| Packaging | - | Bulk | Bulk |
Engineering Selection Recommendations
The 5855525F is the primary substitute for the obsolete 5855525. Both parts are manufactured by Dialight and maintain identical electrical and mechanical specifications. The 5855525F carries active product status and ROHS3 compliance, addressing regulatory requirements that the original part does not meet. The 5855515F provides an alternative parametric equivalent with identical performance characteristics and equivalent compliance certifications.
For new designs and ongoing maintenance applications, the 5855525F is the recommended selection due to its direct manufacturer lineage and active availability. The 5855515F serves as a secondary option when 5855525F inventory is unavailable, as it maintains all critical electrical and mechanical parameters required for BA9S-based 28V yellow LED applications.
Frequently Asked Questions (FAQ)
Q: Can the 5855525F directly replace the obsolete 5855525? A: Yes. The 5855525F maintains identical electrical specifications (28V forward voltage, 592nm wavelength, 2100mcd), mechanical form factor (T-3 1/4 BA9S base), and color (yellow). The primary difference is product status and packaging format.
Q: What is the difference between the 5855525F and 5855515F? A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The distinction lies in their base product numbers (5855525 versus 5855515). Both are active products with ROHS3 compliance and bulk packaging.
Q: Are the substitute parts RoHS compliant? A: Yes. Both the 5855525F and 5855515F are ROHS3 compliant, whereas the original 5855525 is RoHS non-compliant.
Q: What packaging formats are available for the substitutes? A: Both substitute parts are supplied in bulk packaging format.
Q: Can these parts be used in incandescent replacement applications? A: The original 5855525 is specified for incandescent replacements and indicator lights. The substitute parts are specified for general purpose lighting applications with identical electrical and mechanical characteristics suitable for the same socket and voltage requirements.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts

