SMP4-RGB LED RGB CLEAR 4PLCC SMD

Part Overview

The SMP4-RGB is a surface-mounted RGB LED indicator utilizing 4-PLCC packaging with common anode configuration. This component integrates red (640nm), green (570nm), and blue (466nm) discrete LED elements within a single package, providing simultaneous indication across three color channels. The SMP4-RGB is currently obsolete, with limited inventory availability. The SMTL4-RGB represents the current active equivalent, offering identical electrical and optical performance with improved availability and current manufacturing support.

Substiute Parts

SMP4-RGB

Bivar Inc.In Stock: 1820SMP4-RGB Datasheet

Current PartRFQ

SMTL4-RGB

Bivar Inc.In Stock: 3531SMTL4-RGB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SMP4-RGB and SMTL4-RGB are direct functional equivalents based on identical core electrical and optical parameters. Substitution compatibility is determined by the following critical parameters:

Electrical Parameters (Match Required):

• Forward voltage specifications: 1.85V Red, 1.9V Green, 3.3V Blue
• Test current: 20mA per color channel
• Common anode configuration

Optical Parameters (Match Required):

• Dominant wavelengths: 640nm Red, 570nm Green, 466nm Blue
• Luminous intensity: 36mcd Red, 40mcd Green, 50mcd Blue
• Viewing angle: 120°

Mechanical Parameters (Match Required):

• 4-PLCC package type
• Surface mount configuration
• Lens size: 2.40mm diameter
• Lens style: Round with flat top, colorless, clear

The SMTL4-RGB meets all specified parameters, with the primary difference being packaging format (Tape & Reel vs. discrete packaging) and active product status with current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

For Obsolescence Mitigation: The SMP4-RGB is obsolete with limited remaining inventory (1,800 units). The SMTL4-RGB should be selected for all new designs and production requirements. The SMTL4-RGB provides identical electrical, optical, and mechanical performance with 3,512 units in stock and active manufacturing support.

For Compliance and Regulatory Requirements: The SMTL4-RGB carries ROHS3 compliance and REACH unaffected status, meeting current regulatory standards for electronic components. The SMP4-RGB lacks specified compliance documentation suitable for current manufacturing environments.

For Physical Integration: Height tolerance difference: SMP4-RGB maximum height 1.85mm versus SMTL4-RGB maximum height 2.05mm (0.20mm difference). This minor variance is within standard SMD assembly tolerances and does not affect PCB routing or assembly processes for standard applications.

For Supply Chain Continuity: The SMTL4-RGB offers superior supply availability through Tape & Reel packaging, suitable for automated pick-and-place assembly operations. This packaging format reduces handling risk and improves manufacturing efficiency compared to discrete unit packaging.

Frequently Asked Questions (FAQ)

Q: Can SMTL4-RGB directly replace SMP4-RGB in existing designs? A: Yes. All electrical, optical, and mechanical parameters are identical. The components are pin-compatible with matching forward voltages, test currents, dominant wavelengths, and luminous intensities across all three color channels. The 4-PLCC package footprint is identical.

Q: What is the significance of the 0.20mm height difference? A: The SMP4-RGB height maximum is 1.85mm while SMTL4-RGB is 2.05mm. This difference falls within standard PCB assembly clearance margins and does not affect circuit performance or mechanical fit in standard applications. Assembly processes accommodate standard SMD height variations of this magnitude.

Q: Does the packaging format change affect electrical performance? A: No. The Tape & Reel (TR) packaging of SMTL4-RGB versus discrete packaging of SMP4-RGB is a supply and assembly format difference only. Electrical and optical characteristics are identical. Both parts meet MSL 4 (72 Hours) moisture sensitivity requirements.

Q: What compliance certifications apply to the SMTL4-RGB? A: The SMTL4-RGB is ROHS3 compliant and REACH unaffected. These certifications confirm compliance with current environmental and hazardous substance regulations.

Q: Are there any circuit design considerations when substituting? A: No design changes are required. Forward voltages, test currents, viewing angles, and color wavelengths are identical. Current-limiting resistor calculations, bias voltage design, and color mixing ratios remain unchanged.

Q: Is the SMTL4-RGB suitable for production assembly? A: Yes. The Tape & Reel packaging format is optimized for automated pick-and-place assembly. This represents the preferred format for volume production compared to discrete packaging.