LED Panel Indicator 6551205104F Equivalent & Substitute Parts

Part Overview

The Dialight 6551205104F is a 1/2" flat snap LED panel indicator designed for 120V AC applications. This component functions as a visual status indicator with a green LED lamp, 5mA current draw, and solder lug termination. The part carries Last Time Buy status, indicating discontinued production. Identification of equivalent substitute parts is necessary to ensure continued availability and support for existing designs and maintenance requirements.

Substiute Parts

6551205104F

DialightIn Stock: 10586551205104F Datasheet

Current PartRFQ

655-1205-104F

DialightIn Stock: 1172655-1205-104F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 6551205104F is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Voltage Rating: 120V AC
• Current Rating: 5mA
• Lamp Color: Green

Mechanical Parameters:

• Panel Cutout Shape: Round
• Panel Cutout Dimensions: 0.50" (12.70mm)
• Lens Style: Round with Flat Top
• Termination Style: Solder Lug

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

The substitute part 655-1205-104F meets all specified electrical, mechanical, and compliance requirements. This part represents a direct parametric equivalent within the Dialight 655 series, differing only in manufacturer part number format (hyphenated versus non-hyphenated notation).

Parameter Comparison

Engineering Selection Recommendations

The substitute part 655-1205-104F is a direct parametric equivalent to 6551205104F. Both parts are manufactured by Dialight within the 655 series and maintain identical electrical specifications, mechanical dimensions, and compliance certifications. The difference in part number format (hyphenated versus non-hyphenated) reflects internal manufacturer documentation standards and does not affect functional or physical compatibility.

Both parts carry Last Time Buy status, indicating that neither part is in active production. Component selection should prioritize whichever part number offers superior inventory availability. Current inventory shows 1101 units of 655-1205-104F available compared to 1037 units of 6551205104F.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Are 6551205104F and 655-1205-104F physically interchangeable?

A: Yes. Both parts are identical in all electrical and mechanical parameters. The panel cutout dimensions (0.50" round), lens style (round with flat top), and solder lug termination are identical. Direct substitution is supported without design modification.

Q: What determines whether a part can substitute for the 6551205104F?

A: Substitution requires matching across all critical parameters: 120V AC voltage rating, 5mA current rating, green lamp color, round 0.50" panel cutout, round flat-top lens style, solder lug termination, 110mcd brightness, and ROHS3/REACH compliance status.

Q: Why do these parts have different part number formats?

A: The hyphenated format (655-1205-104F) and non-hyphenated format (6551205104F) represent different internal documentation standards used by Dialight. Both formats reference the identical component specification.

Q: What is the significance of Last Time Buy status?

A: Last Time Buy indicates that Dialight has discontinued production of this component. Both the main part and substitute are affected by this status. Inventory planning should account for limited future availability.

Q: Can this LED indicator be used in DC applications?

A: No. The 6551205104F and 655-1205-104F are rated for AC applications only. The voltage rating specifies 120V AC. DC operation is not supported by the provided specifications.

Q: What is the current inventory status for substitution planning?

A: 655-1205-104F has 1101 units in stock, while 6551205104F has 1037 units in stock. Both are listed as new original components.