LTL-23223A Equivalent & Substitute Parts

Part Overview

The LTL-23223A is a red diffused through-hole LED manufactured by Lite-On Inc., designed for indication applications with a dominant wavelength of 623nm. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing production and maintenance requirements. The part operates at 2V forward voltage with a 5.6mcd brightness rating and features a rectangular lens configuration optimized for 140° viewing angle applications.

Substiute Parts

LTL-23223A

Lite-On Inc.In Stock: 1070LTL-23223A Datasheet

Current PartRFQ

LTL-433HR

Lite-On Inc.In Stock: 948LTL-433HR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LTL-23223A is determined by strict alignment of the following electrical and mechanical parameters:

Critical Substitution Criteria:

• Color: Red
• Lens Transparency: Diffused
• Voltage - Forward (Vf): 2V
• Wavelength - Dominant: 623nm
• Wavelength - Peak: 635nm
• Viewing Angle: 140°
• Mounting Type: Through Hole
• Package / Case: Radial
• Lens Style: Rectangle with Flat Top

Allowable Variations:

• Millicandela Rating: May vary based on application requirements
• Current - Test: May vary within acceptable operating ranges
• Lens Size: Minor dimensional variations acceptable if mechanical fit is maintained
• Product Status: Active status preferred for ongoing availability

The LTL-433HR qualifies as a direct substitute based on matching all critical electrical and optical parameters, despite differences in brightness rating (3.7mcd vs 5.6mcd) and test current (10mA vs 20mA).

Parameter Comparison

Engineering Selection Recommendations

The LTL-433HR is the primary substitute for the obsolete LTL-23223A. Both components are manufactured by Lite-On Inc. and share identical electrical and optical specifications for forward voltage, wavelength characteristics, and viewing angle.

The LTL-433HR offers the advantage of active product status, ensuring continued availability and supply chain reliability. The component carries ROHS3 compliance and REACH compliance status, meeting current regulatory requirements for electronic component manufacturing and distribution.

The reduction in millicandela rating (3.7mcd vs 5.6mcd) and test current (10mA vs 10mA) reflects design optimization in the active part. Applications requiring the original brightness specification should evaluate whether the substitute's optical output meets functional requirements within the circuit design.

Both parts maintain identical mechanical compatibility through matching radial package configuration, rectangular lens style, and maximum height specification of 7.50mm, ensuring direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the LTL-433HR directly replace the LTL-23223A in existing designs?

A: Yes. Both components share identical forward voltage (2V), dominant wavelength (623nm), viewing angle (140°), mounting type (through hole), and package configuration (radial). Direct substitution is mechanically and electrically compatible.

Q: What is the impact of the brightness difference between the two parts?

A: The LTL-433HR operates at 3.7mcd compared to the LTL-23223A at 5.6mcd. This represents a reduction in luminous intensity. Applications where brightness is a critical specification should evaluate whether the substitute meets functional requirements.

Q: Why does the LTL-433HR have a lower test current rating?

A: The LTL-433HR is specified with a 10mA test current versus 20mA for the LTL-23223A. This reflects the design characteristics of the active part. Both components operate at the same 2V forward voltage and are suitable for standard indication applications.

Q: Are there compliance differences between the two parts?

A: The LTL-433HR carries ROHS3 and REACH compliance certifications. The LTL-23223A compliance status is not specified in available documentation. For applications requiring regulatory compliance documentation, the LTL-433HR provides certified compliance status.

Q: Is the lens size difference significant?

A: The LTL-23223A features a 6.35mm x 2.00mm lens, while the LTL-433HR uses a 5.00mm x 2.00mm lens. Both maintain the same rectangular flat-top style and identical maximum height of 7.50mm. The lens size reduction does not affect through-hole mounting compatibility or viewing angle performance.

Q: What is the packaging difference?

A: The LTL-23223A is available in standard packaging, while the LTL-433HR is supplied in bulk packaging. Both use identical radial package configuration suitable for through-hole assembly.