Dialight 5510209 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5510209 is a 3mm T-1 through-hole right-angle LED circuit board indicator featuring a single green diffused, tinted lens. Rated at 2.1V and 10mA with a peak wavelength of 563nm and 16mcd brightness, this component is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary to maintain design continuity and ensure ongoing component availability for new production and field replacements.

Substiute Parts

5510209

DialightIn Stock: 10725510209 Datasheet

Current PartRFQ

5510203F

DialightIn Stock: 66615510203F Datasheet

DirectRFQ

5510204F

DialightIn Stock: 36035510204F Datasheet

DirectRFQ

5510207010F

DialightIn Stock: 24635510207010F Datasheet

DirectRFQ

5510207F

DialightIn Stock: 47835510207F Datasheet

DirectRFQ

5510209F

DialightIn Stock: 28015510209F Datasheet

DirectRFQ

5510211F

DialightIn Stock: 18955510211F Datasheet

DirectRFQ

WP934AD/GD

KingbrightIn Stock: 10971WP934AD/GD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5510209 is determined by strict alignment of the following critical parameters:

Direct Substitutes (Dialight 551 Series - Active Status): Parts 5510203F, 5510204F, 5510207010F, 5510207F, 5510209F, and 5510211F are direct substitutes. These parts maintain identical electrical specifications (2.1V, 10mA, 563nm wavelength, 16mcd), mechanical form factor (3mm T-1 through-hole right-angle), and optical characteristics (diffused tinted lens, 45° viewing angle). All are active products with RoHS3 compliance, providing direct pin-compatible replacement capability.

Similar Substitute (Cross-Manufacturer - Kingbright WP934AD/GD): The Kingbright WP934AD/GD is classified as a similar substitute due to parameter variations. While it maintains the same mechanical form factor (3mm T-1 through-hole right-angle, diffused tinted lens), it differs in electrical specifications: 2V voltage rating (versus 2.1V), 25mA current rating (versus 10mA), 25mcd brightness (versus 16mcd), and 568nm wavelength (versus 563nm). The 40° viewing angle also differs from the 45° specification. This part requires circuit design verification before implementation.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Dialight 551 Series): Parts 5510203F, 5510204F, 5510207010F, 5510207F, 5510209F, and 5510211F are recommended as primary substitutes. All maintain active product status with ROHS3 compliance and REACH unaffected certification. These parts provide electrical and optical parameter equivalence to the obsolete 5510209, ensuring circuit compatibility without design modification. Selection among these direct substitutes may be based on packaging preference (bulk) and current inventory availability.

For Cross-Manufacturer Substitution (Kingbright WP934AD/GD): The Kingbright WP934AD/GD is suitable only when circuit design accommodates higher current draw (25mA versus 10mA), increased brightness (25mcd versus 16mcd), and slightly different wavelength (568nm versus 563nm). This part requires explicit design verification and is not recommended as a drop-in replacement without circuit analysis. ROHS3 compliance and REACH unaffected status are maintained.

Frequently Asked Questions (FAQ)

Q: Can I use any of the Dialight 551 series parts as a direct replacement for the 5510209? A: Yes. Parts 5510203F, 5510204F, 5510207010F, 5510207F, 5510209F, and 5510211F are electrically and mechanically equivalent to the 5510209. All maintain 2.1V, 10mA, 563nm wavelength, 16mcd brightness, and identical mechanical form factors. These are pin-compatible direct substitutes.

Q: What are the key differences between the Dialight 551 series substitutes and the Kingbright WP934AD/GD? A: The Kingbright part operates at 2V (versus 2.1V), draws 25mA (versus 10mA), produces 25mcd (versus 16mcd), and has a 568nm wavelength (versus 563nm) with a 40° viewing angle (versus 45°). These electrical and optical differences require circuit design verification before use.

Q: Does packaging type affect substitution eligibility? A: Packaging type (bulk or bag) does not affect electrical or mechanical compatibility. Selection should be based on procurement and assembly process requirements. All substitute parts maintain the same through-hole right-angle mounting configuration.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All active substitute parts (5510203F, 5510204F, 5510207010F, 5510207F, 5510209F, 5510211F, and WP934AD/GD) are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: Can I mix Dialight and Kingbright parts in the same circuit board? A: Mixing manufacturers is not recommended without explicit design verification. The Kingbright WP934AD/GD has different electrical specifications (current, voltage, brightness) that may affect circuit behavior. Use Dialight 551 series parts for consistent performance across the board.