LED Circuit Board Indicator 5503609F Equivalent & Substitute Parts

Part Overview

The Dialight 5503609F is a LED Circuit Board Indicator featuring single green and yellow diffused lens configuration with right-angle through-hole mounting. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The part delivers dual-color indication capability in a compact form factor suitable for PCB integration.

Substiute Parts

5503609F

DialightIn Stock: 9565503609F Datasheet

Current PartRFQ

WP59BL/GYW

KingbrightIn Stock: 1625WP59BL/GYW Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute compatibility for the 5503609F is determined by the following critical parameters:

• Dual-color configuration (Green and Yellow)
• Diffused lens type for uniform light distribution
• Right-angle through-hole mounting orientation
• Wavelength alignment within acceptable ranges (Green 565nm, Yellow 583nm-590nm)
• Voltage compatibility (2.1V-2.2V range)
• RoHS and REACH compliance status

The Kingbright WP59BL/GYW qualifies as a functional equivalent based on matching color configuration, lens type, mounting style, and regulatory compliance. Differences in current rating, millicandela output, and viewing angle represent performance variations within acceptable substitution parameters for this product category.

Parameter Comparison

Engineering Selection Recommendations

The Kingbright WP59BL/GYW serves as the primary substitute for the obsolete Dialight 5503609F. Selection is supported by:

• Active product status ensuring long-term availability and supply chain continuity
• ROHS3 compliance exceeding the original RoHS Compliant specification
• Identical REACH Unaffected status maintaining regulatory alignment
• Matching MSL 1 rating for unlimited moisture exposure tolerance
• Preserved through-hole right-angle mounting compatibility with existing PCB designs

The WP59BL/GYW operates at higher current ratings (25mA-30mA versus 10mA) and delivers increased millicandela output (100mcd Green, 40mcd Yellow), providing enhanced brightness characteristics. The narrower viewing angle (30° versus 65°) represents a functional trade-off suitable for applications requiring directional indication.

Frequently Asked Questions (FAQ)

Q: Can the WP59BL/GYW directly replace the 5503609F in existing designs?

A: Yes, for applications where the PCB layout accommodates the 5mm T-1 3/4 lens size and circuit design supports the higher current requirements. The right-angle through-hole mounting and dual green-yellow configuration ensure mechanical and electrical compatibility.

Q: What are the key differences between these parts?

A: The primary differences are current rating (10mA versus 25mA-30mA), viewing angle (65° versus 30°), and millicandela output. The WP59BL/GYW provides higher brightness and narrower light distribution. Voltage ratings remain compatible within the 2.1V-2.2V range.

Q: Does the WP59BL/GYW meet the same regulatory requirements?

A: Yes. The WP59BL/GYW maintains REACH Unaffected status and exceeds the original RoHS requirement with ROHS3 compliance. Both parts share MSL 1 (Unlimited) moisture sensitivity rating.

Q: Are there packaging considerations for the substitute part?

A: The WP59BL/GYW is supplied in bulk packaging, whereas the original 5503609F packaging specification was not provided. Verify packaging requirements for your procurement process.

Q: How do the wavelength specifications compare?

A: Green wavelength remains constant at 565nm. Yellow wavelength shifts from 583nm to 590nm, representing a 7nm variation within acceptable tolerance for dual-color indicator applications.