LTW-2S3D6 Equivalent & Substitute Parts

Part Overview

The LTW-2S3D6 is an active white LED indication component manufactured by Lite-On Inc., designed for through-hole mounting applications. This T-1 3/4 (5mm) radial LED operates at 3.3V forward voltage with a 20mA test current and delivers 11000mcd brightness. The component is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), making it suitable for standard industrial and consumer electronics applications. Substitute parts are identified based on matching mechanical form factor, mounting type, electrical operating parameters, and compliance certifications.

Substiute Parts

LTW-2S3D6

Lite-On Inc.In Stock: 1199LTW-2S3D6 Datasheet

Current PartRFQ

334-15/F1C5-1RTA

Everlight Electronics Co LtdIn Stock: 2627334-15/F1C5-1RTA Datasheet

MFR RecommendedRFQ

334-15/X1C2-1UWA

Everlight Electronics Co LtdIn Stock: 3651334-15/X1C2-1UWA Datasheet

MFR RecommendedRFQ

SLX-LX5093UWC/C

Lumex Opto/Components Inc.In Stock: 12598SLX-LX5093UWC/C Datasheet

MFR RecommendedRFQ

SSL-LX5093UWC/H

Lumex Opto/Components Inc.In Stock: 18909SSL-LX5093UWC/H Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LTW-2S3D6 are qualified based on the following criteria:

Mechanical Compatibility: All substitute parts maintain the T-1 3/4 (5mm) lens size, round domed-top lens style, clear colorless lens, radial package configuration, and through-hole mounting type.

Electrical Operating Range: Substitute parts operate within compatible forward voltage ranges (3.2V to 3.4V) and maintain the 20mA test current specification. Brightness ratings (millicandela) and viewing angles vary within the substitute group but remain within acceptable ranges for white LED indication applications.

Compliance & Certifications: All substitute parts maintain ROHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating, ensuring equivalent environmental and regulatory suitability.

Color Specification: Primary substitutes are white LEDs; one substitute (334-15/X1C2-1UWA) is warm white, which may be selected for specific color temperature requirements while maintaining all other mechanical and electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain active product status and ROHS3 compliance, ensuring regulatory and supply chain continuity. Selection among substitutes depends on application-specific requirements for brightness and viewing angle:

334-15/F1C5-1RTA provides lower brightness (6750mcd) with wider viewing angle (50°), suitable for applications requiring broad visibility with reduced intensity.

334-15/X1C2-1UWA delivers higher brightness (13500mcd) with warm white color temperature, applicable to designs requiring warm-toned indication with moderate viewing angle (20°).

SLX-LX5093UWC/C offers the lowest brightness (3500mcd) with wide viewing angle (40°), appropriate for low-intensity indication applications.

SSL-LX5093UWC/H (QuasarBrite series) provides the highest brightness (27000mcd) with narrow viewing angle (15°), matching the original part's viewing angle specification while delivering significantly higher luminous intensity.

All parts are available in bulk packaging with substantial inventory levels and maintain identical electrical test parameters (20mA) and forward voltage compatibility within the 3.2V to 3.4V range.

Frequently Asked Questions (FAQ)

Q: Can I substitute the LTW-2S3D6 with any of these parts directly?

A: Yes, all listed parts are mechanically and electrically compatible. They share identical lens size (5mm T-1 3/4), lens style (round domed top), clear colorless lens, radial through-hole mounting, and forward voltage operating range (3.2V to 3.4V). All maintain 20mA test current and ROHS3 compliance.

Q: What is the primary difference between these substitutes?

A: The main differences are brightness (millicandela rating) and viewing angle. The original LTW-2S3D6 provides 11000mcd at 15° viewing angle. Substitutes range from 3500mcd to 27000mcd with viewing angles from 15° to 50°. Select based on your application's visibility and intensity requirements.

Q: Does the height variation matter?

A: Height variations range from 8.70mm to 9.60mm. Verify your PCB layout clearance. The original part and SLX-LX5093UWC/C both measure 8.70mm maximum height. SSL-LX5093UWC/H reaches 9.60mm, requiring additional vertical clearance.

Q: Is the warm white option (334-15/X1C2-1UWA) compatible with my circuit?

A: Yes, it maintains identical electrical parameters (3.2V forward voltage, 20mA test current) and mechanical form factor. The warm white color is the only functional difference. Verify your application accepts warm white color temperature before selection.

Q: Are all parts ROHS3 compliant?

A: Yes, all substitute parts and the original LTW-2S3D6 are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, ensuring equivalent environmental and regulatory suitability.

Q: Which substitute is closest to the original part?

A: SSL-LX5093UWC/H matches the original viewing angle (15°) and maintains white color. It delivers higher brightness (27000mcd versus 11000mcd) but requires verification of height clearance (9.60mm maximum).