LTL-16KY Yellow LED T-1 Through Hole - Equivalent & Substitute Parts

Part Overview

The LTL-16KY is a yellow diffused LED in T-1 (3mm) through-hole package manufactured by Lite-On Inc. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part functions as a yellow LED indication element in discrete radial configuration, suitable for through-hole PCB assembly. Identification of compatible alternatives ensures design continuity and supply chain reliability.

Substiute Parts

LTL-16KY

Lite-On Inc.In Stock: 800LTL-16KY Datasheet

Current PartRFQ

SSL-LX305D4YD

Lumex Opto/Components Inc.In Stock: 1079SSL-LX305D4YD Datasheet

DirectRFQ

WP132XYD

KingbrightIn Stock: 3577WP132XYD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LTL-16KY is determined by the following mandatory parameters:

• Color: Yellow
• Lens Transparency: Diffused
• Lens Style: Round with Domed Top
• Lens Size: 3mm, T-1
• Mounting Type: Through Hole
• Package / Case: Radial
• Height (Max): 5.20mm
• Moisture Sensitivity Level: 1 (Unlimited)

Both identified substitutes (SSL-LX305D4YD and WP132XYD) satisfy all mandatory mechanical and environmental parameters. These parts maintain identical physical form factor, mounting configuration, and environmental rating, enabling direct functional replacement in the LTL-16KY application space.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are classified as active products with current manufacturing status, addressing the obsolescence of the LTL-16KY. Both SSL-LX305D4YD and WP132XYD maintain full compliance with ROHS3 and REACH requirements, supporting modern regulatory standards.

The WP132XYD is designated as the manufacturer-recommended substitute and carries higher inventory availability (3485 pcs) compared to SSL-LX305D4YD (1059 pcs). Both parts share identical mechanical specifications, electrical test parameters (2.1V forward voltage, 20mA test current), and environmental ratings (MSL 1).

Selection between these two active alternatives should be based on supply chain availability, lead time requirements, and existing qualification history within your organization. Both parts satisfy all mandatory substitution criteria for the obsolete LTL-16KY.

Frequently Asked Questions (FAQ)

Q: Can SSL-LX305D4YD and WP132XYD be used interchangeably with LTL-16KY?

A: Yes. Both substitute parts match all mandatory mechanical parameters: 3mm T-1 diffused yellow lens, round domed top style, radial through-hole package, 5.20mm maximum height, and MSL 1 rating. Physical form factor and mounting compatibility are identical.

Q: What are the key electrical differences between the substitutes?

A: Both SSL-LX305D4YD and WP132XYD specify 2.1V typical forward voltage and 20mA test current. Peak wavelengths differ slightly (585nm vs 590nm), both within the yellow spectrum. The LTL-16KY electrical parameters were not specified in available documentation.

Q: Are there compliance or certification differences?

A: Both active substitutes are ROHS3 compliant and REACH unaffected. Both carry EAR99 export classification and 8541.41.0000 HTSUS code, matching the original part's regulatory profile.

Q: Which substitute should be selected for new designs?

A: WP132XYD is the manufacturer-recommended option with superior inventory availability. Both parts are active products suitable for new production. Selection should consider your organization's existing supplier relationships and qualification requirements.

Q: Are there any package or form factor restrictions?

A: No. Both substitutes maintain the identical T-1 radial through-hole package configuration. PCB footprint, lead spacing, and mounting hole requirements are unchanged from the LTL-16KY.