Dialight 5611201090 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5611201090 is a 2.00mm diameter through-hole LED circuit board indicator featuring a single yellow diffused lens with a round flat top configuration. This component operates at 1.9V with a 2mA current rating and delivers 1.8 millicandela at a 50° viewing angle with a peak wavelength of 583nm. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing production and maintenance applications. The 561 series yellow indicator LED is designed for applications requiring compact board-mounted status indication in through-hole mounting configurations.

Substiute Parts

5611201090

DialightIn Stock: 8405611201090 Datasheet

Current PartRFQ

5611201090F

DialightIn Stock: 11275611201090F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Dialight 5611201090 is based on the following critical parameters that must remain consistent:

• Color and Wavelength: Yellow at 583nm peak wavelength
• Electrical Characteristics: 1.9V voltage rating and 2mA current rating
• Optical Performance: 1.8mcd millicandela rating and 50° viewing angle
• Configuration: Single LED configuration
• Lens Type: Diffused lens
• Mounting Type: Through-hole mounting

The substitute part 5611201090F maintains all critical electrical and optical parameters while differing in physical lens dimensions (5mm T-1 3/4 versus 2.00mm diameter) and product status (active versus obsolete). This substitution is valid where board layout and mechanical clearance accommodate the larger lens form factor.

Parameter Comparison

Engineering Selection Recommendations

The Dialight 5611201090F serves as the active production equivalent to the obsolete 5611201090. Both components share identical electrical specifications (1.9V, 2mA), optical output (1.8mcd, 50° viewing angle), and wavelength characteristics (583nm yellow). The primary distinction lies in physical form factor and regulatory compliance status.

Selection of the 5611201090F is appropriate for new designs and production continuity where board layout permits the larger 5mm T-1 3/4 lens form factor. The substitute part offers ROHS3 compliance, addressing modern regulatory requirements absent in the original obsolete component. Both parts maintain unlimited moisture sensitivity level (MSL 1) and REACH unaffected status.

Mechanical compatibility must be verified prior to substitution, as the lens diameter increases from 2.00mm to 5mm and the lens profile changes from flat top to domed top. Through-hole lead spacing and board hole positioning require confirmation to ensure proper fit and function.

Frequently Asked Questions (FAQ)

Q: Can the 5611201090F directly replace the 5611201090 in existing designs?

A: Electrical and optical compatibility is confirmed. Mechanical compatibility depends on board layout. The 5mm T-1 3/4 lens form factor of the substitute requires verification against available board space and hole positioning. The domed top lens profile differs from the original flat top design.

Q: What are the key parameters that determine substitution validity?

A: Substitution is valid when the following parameters match: color (yellow), wavelength (583nm), voltage rating (1.9V), current rating (2mA), millicandela output (1.8mcd), viewing angle (50°), lens type (diffused), and mounting type (through hole). Physical lens dimensions and style may differ if board layout accommodates the change.

Q: Why is the 5611201090 classified as obsolete?

A: The original part is no longer in active production. The 5611201090F represents the current production equivalent within the 561 series, maintaining all critical electrical and optical specifications while offering modern regulatory compliance.

Q: Does the substitute part meet current regulatory requirements?

A: The 5611201090F is ROHS3 compliant and REACH unaffected. The original 5611201090 is RoHS non-compliant. For applications requiring modern regulatory compliance, the substitute part is the appropriate selection.

Q: Are there differences in packaging between these parts?

A: The original part is listed with dash packaging notation, while the substitute is supplied in bulk packaging. Inventory availability differs, with 810 pieces of the original and 1038 pieces of the substitute currently in stock.