Dialight 655-1205-104F LED Panel Indicator Equivalent & Substitute Parts

Part Overview

The Dialight 655-1205-104F 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 lamp, 5mA current draw, and solder lug termination. The part carries Last Time Buy status, indicating discontinued production. Identification of equivalent and substitute parts is necessary to support ongoing maintenance, repair, and new design requirements where this component is specified.

Substiute Parts

655-1205-104F

DialightIn Stock: 1172655-1205-104F Datasheet

Current PartRFQ

6551205104F

DialightIn Stock: 10586551205104F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Dialight 655-1205-104F is determined by strict equivalence across the following critical parameters:

• Electrical Specifications: 120V AC voltage rating and 5mA current draw
• Optical Characteristics: Green lamp color and 110mcd brightness output
• Mechanical Interface: Round panel cutout of 0.50" (12.70mm) diameter and round flat-top lens style
• Termination: Solder lug connection method
• Compliance: ROHS3 compliance and REACH unaffected status

The substitute part identified maintains identical specifications across all provided parameters, ensuring direct functional and mechanical compatibility without circuit modification or panel rework.

Parameter Comparison

Engineering Selection Recommendations

The substitute part Dialight 6551205104F provides complete parametric equivalence to the 655-1205-104F across all electrical, optical, and mechanical specifications. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and replacement applications.

The primary distinction between the two part numbers is formatting convention; both represent the same component specification from Dialight's 655 series. Selection between these part numbers does not affect circuit performance, panel integration, or compliance posture.

Given the Last Time Buy status of both parts, inventory planning should account for limited availability. Current stock levels are 1101 pieces for 655-1205-104F and 1037 pieces for 6551205104F.

Frequently Asked Questions (FAQ)

Q: Are the part numbers 655-1205-104F and 6551205104F interchangeable?

A: Yes. These part numbers represent the same component with identical electrical, optical, and mechanical specifications. The difference is formatting convention only. Both are Dialight 655 series green LED panel indicators rated for 120V AC at 5mA with 0.50" round panel cutout and solder lug termination.

Q: What determines whether a part can substitute for the 655-1205-104F?

A: Substitution requires matching across all critical parameters: 120V AC voltage rating, 5mA current draw, green lamp color, 110mcd brightness, 0.50" round panel cutout, round flat-top lens style, and solder lug termination. Deviation in any of these parameters disqualifies a part as a direct substitute.

Q: Does the Moisture Sensitivity Level (MSL) difference affect substitution?

A: The MSL difference between the main part (Not Applicable) and substitute (1 - Unlimited) does not affect functional substitution. Both parts are suitable for the same applications. MSL classification applies to storage and handling protocols during manufacturing and distribution, not operational performance.

Q: Can these parts be used in new designs?

A: Both parts carry Last Time Buy status, indicating discontinued production. While they remain suitable for replacement and repair applications, new designs should evaluate alternative current-production LED panel indicators from Dialight or other manufacturers that meet the same electrical and mechanical requirements.

Q: What is the panel cutout requirement for installation?

A: The panel cutout must be round with a diameter of 0.50 inches (12.70mm). This dimension is critical for proper mechanical fit and retention of the flat snap lens design.

Q: Are there any compliance restrictions on these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. No additional compliance restrictions apply. These certifications support use in regulated industries and export markets where these standards are required.