SMP4-RYB LED Blue/Red/Yellow 4-PLCC SMD Equivalent & Substitute Parts

Part Overview

The SMP4-RYB is a multi-color LED indicator manufactured by Bivar Inc., featuring integrated blue, red, and yellow light-emitting elements in a 4-PLCC surface mount package. This component provides discrete LED indication with common anode configuration and is designed for applications requiring multi-color status signaling.

The SMP4-RYB is classified as obsolete. Locating equivalent or substitute parts is necessary to support ongoing production requirements, maintenance operations, and design continuity for systems currently utilizing this component.

Substiute Parts

SMP4-RYB

Bivar Inc.In Stock: 1104SMP4-RYB Datasheet

Current PartRFQ

SMTL4-RYB

Bivar Inc.In Stock: 711SMTL4-RYB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMP4-RYB is determined by strict equivalence across the following critical parameters:

Package and Form Factor: The substitute part must utilize the 4-PLCC package type with identical surface mount configuration to ensure PCB compatibility without redesign.

Electrical Characteristics: Forward voltage (Vf) specifications must match across all three color elements: 3.3V for blue, 1.85V for red, and 1.9V for yellow. Test current must remain at 20mA for each color channel.

Optical Properties: Dominant wavelengths must be identical (466nm blue, 640nm red, 585nm yellow). Millicandela ratings must match (50mcd blue, 36mcd red, 16mcd yellow). Viewing angle must be 120°.

Physical Dimensions: Lens size (2.40mm diameter), lens style (round with flat top), and overall package footprint (3.20mm L x 2.80mm W) must be identical.

Configuration: Common anode configuration is mandatory for circuit compatibility.

The SMTL4-RYB meets all substitution criteria and is classified as an active product, providing long-term availability assurance.

Parameter Comparison

Engineering Selection Recommendations

The SMTL4-RYB is the direct equivalent substitute for the obsolete SMP4-RYB. All critical electrical, optical, and mechanical parameters are identical. The substitute part is manufactured by the same supplier (Bivar Inc.) and maintains the same 4-PLCC package configuration, ensuring direct PCB compatibility without circuit redesign.

The SMTL4-RYB carries active product status, providing assured long-term availability and supply chain continuity. The component is ROHS3 compliant, meeting current environmental and regulatory requirements.

Height variance between the main part (1.85mm maximum) and substitute (2.05mm maximum) represents a 0.20mm difference within acceptable mechanical tolerance for surface mount assembly processes and does not affect functional performance or PCB clearance in standard applications.

Packaging format differs between the obsolete part (bulk) and substitute (Tape & Reel). The Tape & Reel format is standard for active production components and is compatible with automated assembly equipment.

Frequently Asked Questions (FAQ)

Q: Can the SMTL4-RYB be used as a direct replacement for the SMP4-RYB without circuit modification?

A: Yes. The SMTL4-RYB is electrically and mechanically equivalent to the SMP4-RYB. All forward voltages, test currents, wavelengths, millicandela ratings, and package dimensions are identical. No circuit redesign is required.

Q: What is the significance of the height difference (1.85mm vs. 2.05mm)?

A: The 0.20mm height variance is within standard mechanical tolerance for 4-PLCC surface mount components. This difference does not affect PCB assembly, component clearance, or functional performance in typical applications.

Q: Why is the SMTL4-RYB packaged in Tape & Reel format instead of bulk?

A: Tape & Reel is the standard packaging format for active production components. This format is optimized for automated assembly processes and provides better component protection during storage and handling. Bulk packaging is typically used only for obsolete or legacy inventory.

Q: Does the SMTL4-RYB meet current environmental compliance standards?

A: Yes. The SMTL4-RYB is ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components.

Q: Are there any other substitute options for the SMP4-RYB?

A: Based on the provided data, the SMTL4-RYB is the only documented equivalent substitute that meets all electrical, optical, and mechanical specifications for the SMP4-RYB.

Q: What is the Moisture Sensitivity Level (MSL) for the SMTL4-RYB?

A: The SMTL4-RYB has an MSL rating of 4 (72 Hours), identical to the SMP4-RYB. This indicates the component requires controlled storage conditions and has a 72-hour floor life after exposure to ambient humidity.