IN-S124ARUW Equivalent & Substitute Parts

Part Overview

The IN-S124ARUW is an active white LED indication component manufactured by Inolux, designed for surface mount applications with bottom entry configuration. This 2-SMD, no-lead package operates at 3.3V forward voltage with a 140 millicandela rating and 140° viewing angle. The component is supplied in Tape & Reel packaging with 933 pieces currently in stock.

Substitute parts are identified to address inventory availability, extended lead times, or specific application requirements while maintaining compatibility within the defined electrical and mechanical parameter ranges.

Substiute Parts

IN-S124ARUW

InoluxIn Stock: 1025IN-S124ARUW Datasheet

Current PartRFQ

QBLP655R-IW

QT Brightek (QTB)In Stock: 1743QBLP655R-IW Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IN-S124ARUW are identified based on the following critical parameters that determine functional compatibility:

Electrical Compatibility Parameters:

• Forward voltage (Vf) within acceptable range for series resistor recalculation
• Test current at 20mA standard
• Viewing angle maintained at 140°
• White color emission

Mechanical Compatibility Parameters:

• Surface mount, bottom entry mounting type
• 2-SMD, no-lead package configuration
• Lens size 1.20mm maintained
• Overall footprint dimensions 3.20mm L x 1.20mm W
• Height within acceptable PCB assembly clearance

Regulatory Compliance Parameters:

• ROHS3 Compliant status
• REACH Unaffected status
• Active product status

The QBLP655R-IW from QT Brightek qualifies as a substitute based on matching electrical test conditions, identical mounting configuration, compatible package dimensions, and equivalent regulatory compliance. Variations in millicandela rating, forward voltage, lens color, and lens transparency represent acceptable parameter deviations within the substitution criteria for this component category.

Parameter Comparison

Engineering Selection Recommendations

Both the IN-S124ARUW and QBLP655R-IW maintain Active product status with full ROHS3 compliance and REACH unaffected designation, confirming regulatory suitability for current and future applications.

The IN-S124ARUW operates at 3.3V forward voltage with 140mcd output and features a clear lens with clear transparency. The QBLP655R-IW operates at 3.1V forward voltage with 180mcd output and features a yellow lens with diffused transparency.

Selection between these components depends on application-specific requirements for brightness output, lens optical properties, and forward voltage operating point. Both components share identical mounting configuration, package type, and footprint dimensions, enabling direct PCB layout compatibility. The 0.2V forward voltage difference between components requires verification of series resistor values in the application circuit to maintain proper current limiting at the 20mA test condition.

Frequently Asked Questions (FAQ)

Q: Can the QBLP655R-IW directly replace the IN-S124ARUW without circuit modification?

A: Both components share identical mounting type, package configuration, and footprint dimensions. However, the forward voltage differs by 0.2V (3.3V versus 3.1V), requiring recalculation of series resistor values to maintain 20mA test current. Direct physical substitution is possible; circuit verification is necessary.

Q: What is the difference between clear and diffused lens transparency?

A: The IN-S124ARUW features a clear lens with clear transparency, providing direct light transmission. The QBLP655R-IW features a yellow lens with diffused transparency, which scatters light over a wider area. Application requirements for light distribution and color perception determine which lens type is appropriate.

Q: Are both components suitable for high-reliability applications?

A: Both components are Active products with ROHS3 compliance and REACH unaffected status. Moisture sensitivity levels differ: IN-S124ARUW is rated 2A (4 Weeks), while QBLP655R-IW is rated 3 (168 Hours). Application storage and handling conditions must align with the respective MSL ratings.

Q: What is the brightness difference between these components?

A: The IN-S124ARUW provides 140mcd output, while the QBLP655R-IW provides 180mcd output. The QBLP655R-IW delivers approximately 29% higher brightness at the same 20mA test current. Application visibility requirements determine which brightness level is appropriate.

Q: Do these components have identical package dimensions?

A: Both components share the same footprint (3.20mm L x 1.20mm W) and lens size (1.20mm). Maximum height differs slightly: IN-S124ARUW is 1.10mm, while QBLP655R-IW is 1.20mm. PCB assembly clearance must accommodate the taller component height.