SML032RGB1T1 Equivalent & Substitute Parts

Part Overview

The SML032RGB1T1 is an RGB LED indicator manufactured by Rohm Semiconductor, featuring independent red, green, and blue emitters in a 1412 (3530 Metric) surface mount package. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing production and maintenance applications. The part delivers 350mcd red, 500mcd green, and 125mcd blue luminous intensity with forward voltages of 2.2V, 3.3V, and 3.2V respectively at 20mA test current.

Substiute Parts

SML032RGB1T1

Rohm SemiconductorIn Stock: 1491SML032RGB1T1 Datasheet

Current PartRFQ

SMLVN6RGB1W1

Rohm SemiconductorIn Stock: 4221SMLVN6RGB1W1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SML032RGB1T1 is determined by the following critical parameters:

• Color Configuration: RGB independent emitters required
• Mounting Type: Surface mount technology
• Electrical Characteristics: Forward voltage and test current specifications for each color channel
• Wavelength Specifications: Dominant wavelengths for red (630nm), green (530nm), and blue (470nm)
• Luminous Intensity: Millicandela ratings per color
• Compliance: RoHS3 compliance and REACH unaffected status
• Package Compatibility: Physical dimensions and height constraints for PCB layout

The substitute part SMLVN6RGB1W1 maintains RGB independent configuration, surface mount technology, and equivalent electrical performance across all color channels. Variations in lens transparency (diffused vs. clear), package form factor (1411 vs. 1412), and physical dimensions represent acceptable trade-offs for applications where the primary functional requirements are met.

Parameter Comparison

Engineering Selection Recommendations

The SMLVN6RGB1W1 is an active production substitute for the obsolete SML032RGB1T1. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and production continuity.

The substitute part demonstrates higher luminous intensity across all color channels (700mcd red, 1200mcd green, 400mcd blue versus 350mcd, 500mcd, 125mcd respectively), with forward voltage specifications within acceptable engineering tolerances. The red channel forward voltage decreases marginally from 2.2V to 2.1V, while the blue channel increases from 3.2V to 3.3V. These variations remain within typical circuit design margins for current-limiting resistor calculations.

Physical differences include reduced package height (0.70mm versus 1.45mm) and slightly smaller footprint dimensions, which may require PCB layout verification for existing designs. The diffused lens of the SMLVN6RGB1W1 contrasts with the clear lens of the original part, affecting light distribution characteristics. The higher MSL rating (3 versus 1) requires adherence to moisture control procedures during storage and assembly.

Frequently Asked Questions (FAQ)

Q: Can SMLVN6RGB1W1 directly replace SML032RGB1T1 without circuit modification?

A: The substitute part maintains equivalent electrical performance for all color channels at 20mA test current. Forward voltage differences are within standard design tolerances. However, PCB layout changes may be necessary due to reduced package height and smaller footprint dimensions. Verify mechanical clearance and trace routing compatibility before implementation.

Q: What is the impact of the diffused lens on optical performance?

A: The SMLVN6RGB1W1 features a diffused white lens compared to the clear colorless lens of the SML032RGB1T1. This affects light distribution and perceived brightness uniformity. The higher millicandela ratings of the substitute part compensate for diffusion losses in most indicator applications. Optical performance should be validated for applications requiring specific light distribution patterns.

Q: Are there storage and handling differences between these parts?

A: The SML032RGB1T1 carries MSL 1 (unlimited moisture sensitivity), while SMLVN6RGB1W1 carries MSL 3 (168 hours). The substitute part requires moisture control during storage and assembly. Maintain storage conditions below 30°C and 85% relative humidity, and limit floor-life exposure to 168 hours before reflow soldering.

Q: How do the wavelength specifications compare?

A: Red and green wavelengths differ slightly (630nm vs. 624nm red; 530nm vs. 527nm green), while blue wavelengths are identical (470nm). These variations fall within the visible spectrum range and are imperceptible in typical indicator applications. Color matching in multi-unit assemblies may show minor variations due to manufacturing tolerances.

Q: What is the inventory status for each part?

A: SML032RGB1T1 has 1476 pieces in stock as new original inventory. SMLVN6RGB1W1 has 4200 pieces available in cut tape and Digi-Reel packaging. The active production status of the substitute part ensures long-term availability for ongoing production requirements.