LTL-2450Y LED Indicator Bar Equivalent & Substitute Parts

Part Overview

The LTL-2450Y is a yellow LED circuit board indicator bar manufactured by Lite-On Inc., configured as a single SIP (Single In-line Package) through-hole component. This active product features a rectangular diffused lens with flat top design, measuring 19.00mm x 3.76mm. The component operates at 2.1V with an 80mA current rating and delivers 8mcd brightness output at a peak wavelength of 585nm. Finding equivalent substitute parts is necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility allows for alternative sourcing while maintaining functional compatibility.

Substiute Parts

LTL-2450Y

Lite-On Inc.In Stock: 1140LTL-2450Y Datasheet

Current PartRFQ

HLMP-2450

Broadcom LimitedIn Stock: 78266HLMP-2450 Datasheet

MFR RecommendedRFQ

KB2450YW

KingbrightIn Stock: 6957KB2450YW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LTL-2450Y are qualified based on the following critical parameters that determine functional compatibility:

Mandatory Compatibility Parameters:

• Configuration: Bar - Single, SIP
• Color: Yellow
• Voltage Rating: 2.1V
• Mounting Type: Through Hole
• Lens Style: Rectangle with Flat Top
• Packaging: Tube
• RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

• Lens Size: Minor dimensional variations within manufacturing tolerances (19.00mm x 3.76mm to 19.05mm x 3.81mm)
• Current Rating: 25mA to 80mA (component selection based on circuit requirements)
• Millicandela Rating: 8mcd to 38mcd (brightness variation acceptable for indicator applications)
• Wavelength - Peak: 583nm to 590nm (yellow spectrum range)

The substitute parts HLMP-2450 (Broadcom Limited) and KB2450YW (Kingbright) meet all mandatory compatibility criteria and fall within allowable variation ranges for electrical and optical parameters.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status with ROHS3 compliance and unlimited moisture sensitivity level ratings, ensuring long-term availability and environmental regulatory adherence.

HLMP-2450 (Broadcom Limited): This substitute offers the highest brightness output at 38mcd with the lowest current consumption at 25mA. Selection is appropriate for applications where reduced power draw is beneficial and higher luminous intensity is acceptable. Wavelength specification of 583nm remains within the yellow spectrum range.

KB2450YW (Kingbright): This substitute provides balanced performance with 36mcd brightness and 30mA current consumption. The diffused white lens type and 590nm wavelength peak offer alternative optical characteristics while maintaining functional compatibility. Selection is appropriate for applications requiring moderate brightness and current levels.

LTL-2450Y (Lite-On): The original part specification with 80mA current rating and 8mcd brightness is retained when higher current capacity is required by the circuit design or when specific wavelength characteristics at 585nm are mandated.

Frequently Asked Questions (FAQ)

Q: Can HLMP-2450 or KB2450YW be used as direct drop-in replacements for LTL-2450Y?

A: Yes, both substitute parts are mechanically and electrically compatible for through-hole PCB mounting. Lens size variations (19.05mm x 3.81mm versus 19.00mm x 3.76mm) are within acceptable tolerances for standard PCB hole spacing. Verify circuit current requirements, as HLMP-2450 operates at 25mA and KB2450YW at 30mA compared to the original 80mA specification.

Q: What are the brightness differences between these parts?

A: LTL-2450Y delivers 8mcd, HLMP-2450 delivers 38mcd, and KB2450YW delivers 36mcd. Higher millicandela ratings indicate greater luminous intensity. Selection depends on application visibility requirements and circuit current budget constraints.

Q: Are there wavelength differences that affect color appearance?

A: Peak wavelengths are 585nm (LTL-2450Y), 583nm (HLMP-2450), and 590nm (KB2450YW). All three fall within the yellow spectrum range. Wavelength variations of this magnitude are not perceptually distinguishable in typical indicator applications.

Q: Do all parts share the same packaging and compliance certifications?

A: Yes. All three parts are supplied in tube packaging, maintain ROHS3 compliance, and carry MSL rating 1 (Unlimited). All parts retain active product status with established supply channels.

Q: What circuit design factors should determine part selection?

A: Primary factors are maximum allowable current consumption and required brightness level. If the circuit is current-limited, HLMP-2450 (25mA) or KB2450YW (30mA) are preferable. If higher current capacity is available and lower brightness is acceptable, LTL-2450Y remains the original specification.