LED Circuit Board Indicator LTL-2720Y Equivalent & Substitute Parts

Part Overview

The LTL-2720Y is a LED Circuit Board Indicator manufactured by Lite-On Inc., configured as a Bar - 4 Wide DIP with yellow (x 4) diffused lens. This through-hole mounted component features a rectangle with flat top lens measuring 8.89mm x 3.81mm, rated at 2.1V and 80mA. The product is currently obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

LTL-2720Y

Lite-On Inc.In Stock: 1163LTL-2720Y Datasheet

Current PartRFQ

KB2720YW

KingbrightIn Stock: 2639KB2720YW Datasheet

MFR RecommendedRFQ

SSB-LX2720YW

Lumex Opto/Components Inc.In Stock: 995SSB-LX2720YW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the LTL-2720Y must maintain compatibility across the following critical parameters:

• Configuration: Bar - 4 Wide, DIP
• Color: Yellow (x 4)
• Lens Type: Diffused
• Lens Style: Rectangle with Flat Top
• Voltage Rating: 2.1V
• Mounting Type: Through Hole
• MSL Rating: 1 (Unlimited)

The identified substitute parts KB2720YW (Kingbright) and SSB-LX2720YW (Lumex Opto/Components Inc.) satisfy these core compatibility requirements. Both substitutes maintain the same physical form factor, electrical voltage specification, and mounting methodology. Variations in current rating, wavelength peak, and millicandela rating reflect differences in LED efficiency and optical output between manufacturers, but do not prevent functional substitution within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

Both KB2720YW and SSB-LX2720YW are active product alternatives to the obsolete LTL-2720Y. Selection between these substitutes should be based on the following factors:

KB2720YW (Kingbright) offers higher millicandela output (23mcd) compared to the original part (4.2mcd) and provides specified lens dimensions matching the original form factor. This part carries ROHS3 compliance and REACH Unaffected status.

SSB-LX2720YW (Lumex Opto/Components Inc.) provides a 160° viewing angle specification and millicandela output of 18mcd. This part also carries ROHS3 compliance and REACH Unaffected status. Lens size dimensions are not specified in available data.

Both substitutes operate at reduced current (30mA versus 80mA original specification), resulting in lower power consumption. Both maintain the 2.1V voltage rating and through-hole mounting configuration. Compliance certifications (ROHS3, REACH) are available for both active alternatives, supporting regulatory requirements for new designs.

Frequently Asked Questions (FAQ)

Q: Can KB2720YW or SSB-LX2720YW be used as direct replacements for LTL-2720Y?

A: Both parts maintain the same configuration (Bar - 4 Wide DIP), color (Yellow x 4), lens type (Diffused), lens style (Rectangle with Flat Top), voltage rating (2.1V), and mounting type (Through Hole). Physical and electrical compatibility is established across these core parameters.

Q: What are the differences in current rating between the original and substitute parts?

A: The LTL-2720Y is rated at 80mA, while both KB2720YW and SSB-LX2720YW are rated at 30mA. This represents a reduction in maximum operating current. Circuit designs must accommodate this lower current specification.

Q: How do the optical output specifications differ?

A: The LTL-2720Y provides 4.2mcd at 585nm wavelength. KB2720YW provides 23mcd at 590nm, and SSB-LX2720YW provides 18mcd at 585nm. Both substitutes deliver higher luminous intensity despite lower current consumption, reflecting improved LED efficiency.

Q: Are there viewing angle differences?

A: The original LTL-2720Y does not specify a viewing angle. SSB-LX2720YW specifies 160° viewing angle. KB2720YW does not specify viewing angle. Application requirements for viewing angle should be evaluated against available specifications.

Q: What is the packaging difference between KB2720YW and SSB-LX2720YW?

A: KB2720YW is supplied in Tube packaging. SSB-LX2720YW packaging is not specified in available data. Procurement and handling requirements may differ based on packaging format.

Q: Do the substitute parts meet current regulatory requirements?

A: Both KB2720YW and SSB-LX2720YW carry ROHS3 compliance and REACH Unaffected status. The original LTL-2720Y does not specify these certifications. Designs requiring regulatory compliance should utilize the active substitute parts.