Dialight 5501105 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5501105 is a 5mm red LED circuit board indicator designed for through-hole, right-angle mounting applications. This component features a diffused lens with domed top, operating at 1.8V with 2mA current consumption and 2mcd brightness output. The part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing production and maintenance applications.

Substiute Parts

5501105

DialightIn Stock: 11005501105 Datasheet

Current PartRFQ

5501105F

DialightIn Stock: 20165501105F Datasheet

DirectRFQ

HLMP-4700-C00B2

Broadcom LimitedIn Stock: 2092HLMP-4700-C00B2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Dialight 5501105 are identified based on the following critical parameters that determine functional compatibility:

Primary Matching Criteria:

• Color: Red (635nm wavelength peak)
• Configuration: Single LED
• Current Rating: 2mA
• Viewing Angle: 50°
• Mounting Type: Through Hole, Right Angle
• Lens Type: Diffused
• Package Form Factor: 5mm, T-1 3/4

Allowable Variation Parameters:

• Voltage Rating: ±0.1V tolerance (1.7V–1.9V acceptable)
• Millicandela Rating: ±0.3mcd tolerance (1.7mcd–2.3mcd acceptable)
• Lens Style: Variations in diffusion or tinting permitted if optical performance remains within specification
• Product Status: Active alternatives preferred for obsolete parts

Two substitute parts meet these criteria and are classified as follows:

Direct Substitute (Same Series): Dialight 5501105F – identical electrical and mechanical specifications with active product status and bulk packaging.

Cross-Manufacturer Substitute (Similar Performance): Broadcom Limited HLMP-4700-C00B2 – equivalent electrical performance with minor voltage and brightness variations within acceptable tolerance.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): Select Dialight 5501105F when sourcing replacements for the obsolete 5501105. This part maintains identical electrical specifications, mechanical form factor, and mounting configuration. The active product status ensures long-term availability and supply chain continuity. RoHS3 compliance provides regulatory alignment for new designs and manufacturing processes.

For Cross-Manufacturer Substitution: The Broadcom Limited HLMP-4700-C00B2 serves as a functional alternative when Dialight 5501105F is unavailable. This part operates at 1.7V (0.1V lower than the main part) and delivers 2.3mcd brightness (0.3mcd higher than the main part), both within acceptable engineering tolerance for circuit board indicator applications. The tinted diffused lens provides equivalent optical performance. RoHS3 compliance and REACH unaffected status match regulatory requirements of the direct substitute.

Compliance Considerations: Both substitute parts carry ROHS3 compliance and REACH unaffected status, supporting modern manufacturing and environmental standards. The main part's RoHS status is not specified; substitutes provide regulatory certainty for new production runs.

Frequently Asked Questions (FAQ)

Q: Can Dialight 5501105F be used as a direct replacement for the obsolete 5501105? A: Yes. The 5501105F maintains identical voltage rating (1.8V), current consumption (2mA), brightness (2mcd), viewing angle (50°), lens configuration (diffused, round with domed top), and mounting type (through hole, right angle). The only difference is product status (active vs. obsolete) and packaging format (bulk).

Q: What is the voltage difference between the main part and the Broadcom substitute? A: The Broadcom HLMP-4700-C00B2 operates at 1.7V compared to the Dialight 5501105's 1.8V. This 0.1V difference is within standard engineering tolerance for LED circuit board indicators and does not affect functional compatibility in typical applications.

Q: Does the Broadcom HLMP-4700-C00B2 have different optical characteristics? A: The Broadcom part features a tinted diffused lens compared to the standard diffused lens of the Dialight 5501105. Both maintain 50° viewing angle and 635nm peak wavelength. The Broadcom part delivers 2.3mcd brightness versus 2mcd for the Dialight, representing a 0.3mcd increase within acceptable tolerance.

Q: Are both substitute parts RoHS compliant? A: Yes. Both Dialight 5501105F and Broadcom HLMP-4700-C00B2 carry ROHS3 compliance certification. The original Dialight 5501105 RoHS status is not specified in available documentation.

Q: What is the packaging difference between 5501105 and 5501105F? A: The main part (5501105) packaging format is not specified. The 5501105F is supplied in bulk packaging. Both parts are identical in electrical and mechanical specifications.

Q: Can these parts be used interchangeably in existing circuit board designs? A: Yes, for through-hole, right-angle mounted red LED indicator applications. All three parts share identical mounting type, form factor (5mm, T-1 3/4), and core electrical parameters (2mA current, 50° viewing angle, 635nm wavelength). Minor voltage and brightness variations fall within standard design tolerances for indicator circuits.

Q: Which substitute should be selected for new production designs? A: Dialight 5501105F is the preferred choice for new designs, as it maintains complete specification alignment with the original part and ensures supply chain continuity within the same manufacturer. The Broadcom HLMP-4700-C00B2 serves as a secondary option when primary sourcing is constrained.