Dialight 5505605 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5505605 is a 5mm green LED circuit board indicator designed for through-hole, right-angle mounting applications. This component features a clear, domed lens with a peak wavelength of 565nm and operates at 2.3V with a 20mA current rating, delivering 120 millicandela of brightness at a 24° viewing angle. The part is classified as obsolete, making identification of active equivalent and substitute components essential for ongoing production and maintenance applications.

Substiute Parts

5505605

DialightIn Stock: 10695505605 Datasheet

Current PartRFQ

5505605F

DialightIn Stock: 19915505605F Datasheet

DirectRFQ

HLMP-3950-K00B2

Broadcom LimitedIn Stock: 948HLMP-3950-K00B2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5505605 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Color: Green (565nm peak wavelength)
• Configuration: Single LED
• Current Rating: 20mA
• Mounting Type: Through Hole, Right Angle
• Lens Type: Clear
• Viewing Angle: 24°
• Voltage Rating: 2.3V nominal (±0.1V tolerance acceptable)

Substitute Classification:

Direct Substitute (5505605F): Dialight's active-production variant of the 5505605. Maintains identical electrical specifications (2.3V, 20mA, 120mcd, 565nm) and mechanical form factor. Differs only in packaging (Bulk vs. original packaging) and product status (Active vs. Obsolete). This part provides direct functional equivalence with improved supply chain availability.

Similar Substitute (HLMP-3950-K00B2): Broadcom Limited's equivalent green LED indicator from the HLMP-3950 series. Matches all critical parameters including color, wavelength, current rating, mounting type, and viewing angle. Operates at 2.2V (0.1V lower than the 5505605) and delivers higher brightness at 265mcd. This part is functionally compatible within standard circuit design tolerances for LED indicator applications.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): Select Dialight 5505605F when maintaining the original design specification is required. This part is the active production equivalent of the obsolete 5505605, offering identical electrical and mechanical characteristics with the advantage of current manufacturing status and ROHS3 compliance certification. Supply availability is confirmed at 1907 pieces in stock.

For Cross-Manufacturer Substitution: The Broadcom Limited HLMP-3950-K00B2 provides functional equivalence with consideration for the 0.1V lower operating voltage (2.2V vs. 2.3V) and increased brightness output (265mcd vs. 120mcd). Both parameters fall within acceptable tolerances for standard LED indicator circuit applications. This part is suitable when Dialight 5505605F availability is constrained. ROHS3 compliance and unlimited moisture sensitivity rating confirm regulatory alignment with the original component.

Both substitute parts maintain the critical parameters of green wavelength (565nm), 20mA current rating, 24° viewing angle, clear lens type, and through-hole right-angle mounting configuration.

Frequently Asked Questions (FAQ)

Q: Can the 5505605F be used as a direct replacement for the 5505605?

A: Yes. The 5505605F is the active production equivalent of the obsolete 5505605. Both parts share identical electrical specifications (2.3V, 20mA, 120mcd, 565nm) and mechanical form factor (5mm diameter, clear domed lens, through-hole right-angle mount). The only differences are packaging type and product status.

Q: What is the voltage difference between the 5505605 and HLMP-3950-K00B2?

A: The 5505605 operates at 2.3V, while the HLMP-3950-K00B2 operates at 2.2V. This 0.1V difference is within standard circuit design tolerances for LED indicator applications and does not affect functional compatibility in typical implementations.

Q: Does the higher brightness of the HLMP-3950-K00B2 (265mcd vs. 120mcd) affect compatibility?

A: The increased brightness is a performance enhancement, not a compatibility issue. The HLMP-3950-K00B2 will appear brighter in the same circuit. If the original design requires the specific brightness level of 120mcd, circuit current limiting resistor values may require adjustment to maintain the intended visual output.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the 5505605F and HLMP-3950-K00B2 are certified ROHS3 compliant. The original 5505605 RoHS status is not specified in the available data.

Q: What is the packaging difference between 5505605 and 5505605F?

A: The 5505605 is supplied in standard packaging, while the 5505605F is supplied in bulk packaging. Both parts are electrically and mechanically identical.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes, all three parts share identical through-hole right-angle mounting specifications and 5mm diameter form factor, allowing direct PCB footprint compatibility without design modification.