LED Circuit Board Indicator 5503605 Equivalent & Substitute Parts

Part Overview

The Dialight 5503605 is a 5mm LED circuit board indicator featuring dual color capability (green/yellow) with a diffused lens and right-angle through-hole mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing production support and design updates. The part operates at 2.1V with a 10mA current rating and provides 8mcd green and 5mcd red output intensity.

Substiute Parts

5503605

DialightIn Stock: 10535503605 Datasheet

Current PartRFQ

WP59BL/GYW

KingbrightIn Stock: 1625WP59BL/GYW Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5503605 is determined by the following critical parameters:

• Lens size: 5mm, T-1 3/4 form factor
• Mounting configuration: Through hole, right angle orientation
• Color capability: Dual green/yellow output
• Lens construction: Diffused optical type
• Package compatibility: Physical and electrical interface alignment

The Kingbright WP59BL/GYW satisfies these core substitution criteria. Both components share identical mechanical form factors, mounting styles, and dual-color LED configurations. Electrical parameter variations (voltage and current ratings) fall within acceptable tolerance ranges for circuit board indicator applications where the primary function is status signaling rather than precision illumination.

Parameter Comparison

Engineering Selection Recommendations

The Kingbright WP59BL/GYW is an active production component with ROHS3 compliance, providing supply chain continuity for applications currently using the obsolete Dialight 5503605. Both parts maintain identical moisture sensitivity ratings and export compliance classifications.

The WP59BL/GYW exhibits higher luminous intensity (100mcd green, 40mcd yellow versus 8mcd and 5mcd respectively) and increased current capacity (25-30mA versus 10mA). These electrical enhancements are compatible with standard circuit board indicator applications. The narrower viewing angle (30° versus 65°) may affect visibility in applications requiring wide-angle illumination.

Selection should be based on circuit design requirements for current capacity and desired viewing angle characteristics. Both components are suitable for direct substitution in standard indicator circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the Kingbright WP59BL/GYW directly replace the Dialight 5503605 in existing PCB designs?

A: Yes. Both components share identical 5mm T-1 3/4 form factors and right-angle through-hole mounting configurations. PCB footprints and lead spacing are compatible. Circuit designs must accommodate the higher current ratings of the substitute part.

Q: What are the key electrical differences between these parts?

A: The WP59BL/GYW operates at slightly higher voltage (2.2V green, 2.1V yellow) and requires higher current (25-30mA) compared to the 5503605 (2.1V, 10mA). The substitute produces significantly higher luminous intensity. Existing current-limiting resistor values should be recalculated for the substitute part.

Q: How do the viewing angles differ?

A: The Dialight 5503605 provides a 65° viewing angle, while the Kingbright WP59BL/GYW offers a 30° viewing angle. Applications requiring wide-angle visibility may experience reduced brightness perception with the substitute part.

Q: Are both parts compliant with environmental regulations?

A: Yes. Both components are REACH unaffected and classified as EAR99 for export purposes. The WP59BL/GYW carries ROHS3 compliance certification.

Q: What is the moisture sensitivity rating for these components?

A: Both parts carry MSL 1 (Unlimited) classification, indicating no moisture sensitivity restrictions for storage or handling.