Dialight 5590103003 LED Panel Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5590103003 is a red LED panel indicator with snap-in mounting, designed for 12V DC applications. This component features a 5mm T-1 3/4 lens with 60° viewing angle and 635nm peak wavelength. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Direct replacements from the same manufacturer series maintain electrical and mechanical compatibility while offering improved compliance and availability.

Substiute Parts

5590103003

DialightIn Stock: 12175590103003 Datasheet

Current PartRFQ

5590103003F

DialightIn Stock: 8475590103003F Datasheet

DirectRFQ

5590103023F

DialightIn Stock: 18295590103023F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5590103003 is determined by strict equivalence across the following critical parameters:

• Voltage rating: 12V DC
• Wavelength: 635nm red spectrum
• Lens size and style: 5mm T-1 3/4 round domed
• Panel cutout dimensions: 0.25" (6.35mm) round
• Viewing angle: 60°
• Termination: Wire leads 6" length
• Millicandela rating: 8mcd
• Moisture sensitivity level: 1 (Unlimited)

Both substitute parts (5590103003F and 5590103023F) maintain full compatibility across these parameters. The primary differences are product status (active vs. obsolete), RoHS compliance level, and lens transparency specifications, which do not affect electrical or mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are direct functional equivalents to the Dialight 5590103003. Selection between them should be based on the following factors:

5590103003F is the direct manufacturer successor, maintaining the closest lineage to the original part number. This part carries ROHS3 compliance and is actively produced, ensuring long-term availability and supply chain stability.

5590103023F provides an alternative from the same series with identical electrical and mechanical specifications. This part also carries ROHS3 compliance and offers higher current inventory levels (1728 pcs vs. 829 pcs), which may provide supply advantages for high-volume applications.

Both substitutes are ROHS3 compliant, addressing regulatory requirements that the obsolete original part does not meet. The choice between them depends on supply chain preferences and inventory availability rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can 5590103003F and 5590103023F be used interchangeably with the original 5590103003?

A: Yes. Both parts maintain identical electrical ratings (12V DC), optical specifications (635nm wavelength, 8mcd, 60° viewing angle), mechanical dimensions (5mm T-1 3/4 lens, 0.25" panel cutout), and termination style (6" wire leads). They are direct functional substitutes.

Q: What is the difference between the two substitute parts?

A: The primary differences are product status (both active), lens transparency specification (5590103003F is diffused; 5590103023F does not specify transparency), and inventory availability. Electrical and mechanical compatibility is identical.

Q: Why is the original part obsolete?

A: The Dialight 5590103003 is classified as obsolete. The active substitutes 5590103003F and 5590103023F provide continued access to equivalent functionality with improved compliance status and ongoing manufacturer support.

Q: Are there any compliance differences I should consider?

A: The original part is RoHS non-compliant. Both substitute parts are ROHS3 compliant. All three parts are REACH Unaffected. If your application requires RoHS compliance, the substitutes are the appropriate choice.

Q: Will the wire lead length affect my installation?

A: All three parts feature identical 6" (152.40mm) wire leads and round 0.25" (6.35mm) panel cutout dimensions. Installation compatibility is maintained across all variants.

Q: What current should I design for?

A: The substitute parts specify 15mA operating current. The original part does not specify current in the provided data. Design calculations should use the 15mA specification from the active substitutes.