SMTL6-RGB RGB LED Indicator Component

Part Overview

The SMTL6-RGB is an RGB light-emitting diode (LED) indicator designed for discrete illumination applications. This surface-mount component features independent red, green, and blue LED elements within a single 6-pin package, providing three-color indication capability. The component is currently classified as Obsolete, making the identification of suitable substitute parts essential for ongoing design support and system maintenance. The SMTL6-RGB-1 represents the active alternative within the product family, offering improved electrical characteristics and contemporary availability.

Substiute Parts

SMTL6-RGB

Bivar Inc.In Stock: 799SMTL6-RGB Datasheet

Current PartRFQ

SMTL6-RGB-1

Bivar Inc.In Stock: 967SMTL6-RGB-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The SMTL6-RGB-1 qualifies as a substitute part based on the following critical parameters that determine compatibility and interchangeability:

Mechanical Compatibility: Both parts maintain identical physical characteristics including 4.00mm diameter round lens with flat top, surface-mount J-Lead configuration within a 6-PLCC package, and RGB independent color configuration. The height variation (1.60mm max vs. 1.75mm max) remains within acceptable board assembly tolerances for surface-mount applications.

Optical Specifications: Dominant wavelengths remain constant across all three color channels (626nm Red, 526nm Green, 471nm Blue), and millicandela ratings are preserved (600mcd Red, 800mcd Green, 350mcd Blue). Viewing angle specification is identical at 140°.

Electrical Parameters: While forward voltage specifications differ slightly (1.8V/3V/3V for SMTL6-RGB vs. 2.1V/3.3V/3.3V for SMTL6-RGB-1), both operate within 20mA test current across all three channels. These voltage variations are within typical circuit design margins and do not preclude substitution where current-limiting resistor values are appropriately selected.

Regulatory Compliance: Both parts maintain ROHS3 compliance, ensuring alignment with international environmental and health regulations.

Parameter Comparison

Engineering Selection Recommendations

The SMTL6-RGB-1 is the appropriate substitute for SMTL6-RGB applications based on the following engineering criteria:

Product Status and Availability: SMTL6-RGB is classified as Obsolete with finite inventory (715 units available). SMTL6-RGB-1 holds Active status with higher current inventory (893 units), ensuring long-term procurement viability for new designs and production runs.

Regulatory Compliance: Both components maintain ROHS3 Compliant status, confirming adherence to current environmental and materials regulations. This equivalence supports seamless integration into regulated manufacturing environments without reformulation or qualification modifications.

Physical Integration: Both parts utilize identical 6-SMD, J-Lead package configuration within 6-PLCC supplier packaging. The optical aperture diameter remains constant at 4.00mm, and the height differential of 0.15mm falls within typical surface-mount assembly tolerances for standard pick-and-place equipment.

Optical and Electrical Performance: Forward voltage specifications on SMTL6-RGB-1 represent a nominal 0.3V increase across all three channels, maintained within standard circuit design margins. Millicandela ratings, dominant wavelengths, viewing angles, and test currents remain unchanged. Circuit implementations utilizing current-limiting series resistors can accommodate this voltage variance through standard resistor selection adjustments.

Frequently Asked Questions (FAQ)

Q: Can SMTL6-RGB-1 directly replace SMTL6-RGB without circuit modification?

A: SMTL6-RGB-1 provides direct mechanical and optical substitution. Electrical substitution requires evaluation of existing current-limiting resistor values. The 0.3V forward voltage increase on all channels requires proportional resistor adjustment to maintain equivalent operating current. For a given supply voltage, resistor value calculations must account for the updated Vf specification.

Q: What are the critical substitution parameters for RGB LED indicators?

A: Substitution validity is determined by package configuration, mounting type, lens diameter, lens style, dominant wavelengths, millicandela ratings, viewing angle, and overall physical dimensions. Forward voltage and current specifications are secondary parameters that affect circuit design but do not prevent substitution.

Q: Does the 0.15mm height difference affect board assembly?

A: Surface-mount assembly height variations of 0.15mm are within standard manufacturing tolerances for reflow soldering processes and do not require modification to solder reflow profiles, stencil design, or component placement specifications for applications using conventional pick-and-place equipment.

Q: Are both SMTL6-RGB and SMTL6-RGB-1 suitable for new design implementations?

A: SMTL6-RGB-RGB is classified as Obsolete and unsuitable for new designs. SMTL6-RGB-1, holding Active status with current manufacturer support, is the appropriate selection for new designs, production updates, and ongoing system maintenance where SMTL6-RGB inventory is depleted.

Q: What is the significance of the 5.40mm vs. 5.00mm length dimension difference?

A: The footprint length variation reflects minor package geometry optimization. Both dimensions accommodate identical 6-PLCC lead spacing and J-Lead configuration. PCB footprint patterns designed for either variant remain compatible with both parts within standard manufacturing tolerances for surface-mount assembly.