ASMT-YTB8-0BA02 Equivalent & Substitute Parts

Part Overview

The ASMT-YTB8-0BA02 is a surface-mount RGB LED indicator featuring independent red, green, and blue emitters in a 6-SMD J-Lead package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The part delivers 938mcd red, 1900mcd green, and 384mcd blue luminous intensity with a 120° viewing angle and diffused lens configuration.

Substiute Parts

ASMT-YTB8-0BA02

Broadcom LimitedIn Stock: 1155ASMT-YTB8-0BA02 Datasheet

Current PartRFQ

ASMT-YTB7-0AA02

Broadcom LimitedIn Stock: 1000269ASMT-YTB7-0AA02 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ASMT-YTB8-0BA02 is determined by strict equivalence across the following parameters:

• RGB color configuration with independent control
• Diffused lens with square flat-top geometry
• 2.30mm lens size
• Forward voltage specifications: 2.1V red, 3.1V green, 3.1V blue
• Test current: 20mA per color channel
• 120° viewing angle
• 6-SMD J-Lead package (6-PLCC)
• Surface-mount footprint compatibility (3.00mm L × 2.80mm W × 2.00mm H max)
• Dominant wavelengths: 623nm red, 529nm green, 469nm blue

The ASMT-YTB7-0AA02 meets all these criteria and qualifies as a direct substitute. Variations in luminous intensity (millicandela rating) do not disqualify substitution when all electrical, optical, and mechanical parameters remain within specification.

Parameter Comparison

Engineering Selection Recommendations

The ASMT-YTB7-0AA02 is the qualified substitute for the obsolete ASMT-YTB8-0BA02. Selection should be based on the following factors:

Product Status: The ASMT-YTB7-0AA02 carries active product status with established supply chain availability, whereas the main part is obsolete. This transition is necessary for long-term design support.

Compliance & Certifications: The substitute part is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. These certifications provide assurance for applications subject to environmental and hazardous substance restrictions.

Electrical & Optical Equivalence: Both parts maintain identical forward voltage specifications (2.1V red, 3.1V green, 3.1V blue), test current (20mA per channel), viewing angle (120°), and dominant wavelengths (623nm red, 529nm green, 469nm blue). These parameters ensure direct functional compatibility in existing circuit designs.

Mechanical Compatibility: Package geometry, footprint dimensions (3.00mm L × 2.80mm W × 2.00mm H max), and surface-mount configuration are identical, enabling direct PCB layout reuse without redesign.

Luminous Intensity Variance: The red channel millicandela rating differs (938mcd vs. 650mcd). Applications requiring the original red intensity specification should evaluate whether the reduced intensity is acceptable for the intended indicator function.

Moisture Sensitivity: The substitute part specifies MSL 3 (168 hours) versus MSL 2A (4 weeks) for the original. This represents a more stringent moisture handling requirement during storage and assembly.

Frequently Asked Questions (FAQ)

Q: Can the ASMT-YTB7-0AA02 be used as a direct replacement for the ASMT-YTB8-0BA02 in existing designs?

A: Yes, provided the red channel luminous intensity reduction (938mcd to 650mcd) does not impact the application's indicator visibility requirements. All electrical parameters, optical wavelengths, package geometry, and mounting configuration are equivalent.

Q: What is the primary reason for substitution?

A: The ASMT-YTB8-0BA02 is classified as obsolete. The ASMT-YTB7-0AA02 is an active product with established supply chain support, ensuring long-term component availability.

Q: Are there any compliance differences between the two parts?

A: The substitute part is ROHS3 compliant and REACH unaffected. The original part's compliance status is not specified. If your application requires these certifications, the ASMT-YTB7-0AA02 is the appropriate choice.

Q: Will the PCB layout require modification?

A: No. Both parts share identical package dimensions (3.00mm L × 2.80mm W × 2.00mm H max) and 6-SMD J-Lead footprint. Existing PCB layouts are compatible without redesign.

Q: What is the difference in moisture sensitivity level?

A: The original part specifies MSL 2A (4 weeks of shelf life under controlled conditions), while the substitute specifies MSL 3 (168 hours). The substitute requires more careful moisture control during storage and assembly. Ensure your manufacturing process accommodates the stricter MSL 3 requirement.

Q: Are the forward voltage and test current specifications identical?

A: Yes. Both parts operate at 2.1V red, 3.1V green, and 3.1V blue with 20mA test current per channel. Existing current-limiting resistor calculations and power supply specifications remain valid.

Q: Does the red channel intensity reduction affect circuit design?

A: The reduction from 938mcd to 650mcd affects perceived brightness but not electrical operation. Evaluate whether the lower intensity meets your indicator visibility requirements in the target application environment.