Dialight 5520911803F LED Circuit Board Indicator Equivalent & Substitute Parts

Part Overview

The Dialight 5520911803F is an LED Circuit Board Indicator (CBI) designed for applications requiring dual-level red indication. This through-hole, right-angle mounted component operates at 1.8V with a 2mA current draw and delivers 2 millicandela output. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when electrical and mechanical parameters remain identical across the specified operational envelope.

Substiute Parts

5520911803F

DialightIn Stock: 11295520911803F Datasheet

Current PartRFQ

5520911F

DialightIn Stock: 14675520911F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5520911803F is determined by strict equivalence across all electrical and mechanical parameters. The following criteria define acceptable substitutes:

• Identical voltage rating (1.8V)
• Identical current specification (2mA)
• Identical color and wavelength (Red, 635nm)
• Identical configuration (2 High)
• Identical millicandela output (2mcd)
• Identical viewing angle (50°)
• Identical lens type, style, and size (Diffused, Tinted; Round with Domed Top; 5mm, T-1 3/4)
• Identical mounting type (Through Hole, Right Angle)
• Identical RoHS and compliance status

The substitute part 5520911F meets all these criteria and is classified as a direct equivalent within the Dialight 552 series.

Parameter Comparison

Engineering Selection Recommendations

Both the Dialight 5520911803F and 5520911F are active production components with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability and lead time considerations. The 5520911F currently maintains higher stock levels (1416 pcs vs. 1089 pcs). Both parts carry ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications. No technical differentiation exists between these components for circuit board indicator applications requiring dual-level red LED indication at 1.8V, 2mA operation.

Frequently Asked Questions (FAQ)

Q: Can the 5520911F replace the 5520911803F in existing designs? A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including voltage, current, color, wavelength, configuration, brightness, viewing angle, lens characteristics, and mounting type.

Q: Are there any compliance differences between these parts? A: No. Both parts carry identical RoHS3 compliance, REACH unaffected status, and MSL rating of 1 (Unlimited).

Q: What determines substitution eligibility for this LED indicator? A: Substitution requires exact matching of voltage rating, current draw, color, wavelength, configuration, millicandela output, viewing angle, lens type and size, mounting type, and compliance certifications.

Q: Does packaging differ between these parts? A: Both parts are supplied in bulk packaging. No packaging differentiation affects substitution eligibility.

Q: Are there any lead time or availability advantages to selecting one part over the other? A: The 5520911F maintains higher current inventory levels. Consult your supplier for real-time availability and lead time information specific to your procurement timeline.