SLB-24MG3F Equivalent & Substitute Parts

Part Overview

The SLB-24MG3F is a green diffused through-hole LED manufactured by Rohm Semiconductor, designed for indication applications. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing production and maintenance requirements. The part operates at a forward voltage of 2.1V with a test current of 10mA and delivers 1.6mcd luminous intensity through a rectangular diffused lens.

Substiute Parts

SLB-24MG3F

Rohm SemiconductorIn Stock: 893SLB-24MG3F Datasheet

Current PartRFQ

LTL-433G

Lite-On Inc.In Stock: 18246LTL-433G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SLB-24MG3F is determined by the following critical parameters:

• Color and Wavelength: Green emission (peak wavelength 563nm for main part, 565nm for substitute)
• Lens Transparency: Diffused lens type for consistent light distribution
• Electrical Characteristics: Forward voltage of 2.1V and through-hole radial mounting configuration
• Lens Geometry: Rectangle with flat top configuration
• Compliance: ROHS3 compliance for regulatory alignment

The LTL-433G from Lite-On Inc. satisfies these substitution criteria while maintaining functional equivalence for indication applications.

Parameter Comparison

Engineering Selection Recommendations

The LTL-433G is a functional substitute for the obsolete SLB-24MG3F based on matching electrical characteristics (2.1V forward voltage), identical lens type (diffused rectangle with flat top), and equivalent green wavelength emission (565nm vs. 563nm). Both components maintain ROHS3 compliance.

The LTL-433G carries active product status with established supply availability, eliminating obsolescence risk. The substitute exhibits higher luminous intensity (3.7mcd vs. 1.6mcd) and operates at a higher test current (20mA vs. 10mA), which may require circuit evaluation for brightness-sensitive applications. The viewing angle is marginally reduced (140° vs. 150°), and physical height is increased by 1.1mm (7.50mm vs. 6.40mm), requiring verification of mechanical fit within the target assembly.

Frequently Asked Questions (FAQ)

Q: Can the LTL-433G directly replace the SLB-24MG3F without circuit modification?

A: Both components share identical forward voltage (2.1V) and mounting configuration (through-hole radial). However, the LTL-433G operates at 20mA test current versus 10mA for the SLB-24MG3F, and delivers higher luminous intensity (3.7mcd vs. 1.6mcd). Circuit current-limiting resistor values should be evaluated to ensure compatibility with the substitute's electrical requirements.

Q: Are there mechanical compatibility concerns?

A: The LTL-433G is 1.1mm taller (7.50mm vs. 6.40mm) and has a slightly larger lens footprint (5.00mm x 2.00mm vs. 3.90mm x 1.90mm). PCB layout and enclosure clearances must be verified before substitution.

Q: Do both parts meet the same regulatory requirements?

A: Both the SLB-24MG3F and LTL-433G are ROHS3 compliant. The LTL-433G is REACH affected, whereas the original part is REACH unaffected. Regulatory compliance requirements for the target application should be confirmed.

Q: What is the wavelength difference between these parts?

A: The SLB-24MG3F has a peak wavelength of 563nm, while the LTL-433G operates at 565nm. This 2nm difference is within the green spectrum and is not visually distinguishable for indication applications.

Q: Is the reduced viewing angle of the LTL-433G (140° vs. 150°) a concern?

A: The 10° reduction in viewing angle may impact applications requiring wide-angle visibility. Assessment depends on the specific mounting orientation and viewing requirements of the target application.