FY1112C-TR Yellow LED 1608 SMD Equivalent & Substitute Parts

Part Overview

The FY1112C-TR is a yellow 590nm LED indicator manufactured by Stanley Electric Co in 0603 (1608 Metric) surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The FY1112C-TR delivers 50mcd luminous intensity with a diffused white lens and 132° to 149° viewing angle, suitable for standard LED indication circuits requiring yellow wavelength output.

Substiute Parts

FY1112C-TR

Stanley Electric CoIn Stock: 851FY1112C-TR Datasheet

Current PartRFQ

SML-E12Y8WT86

Rohm SemiconductorIn Stock: 5449SML-E12Y8WT86 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FY1112C-TR is based on the following criteria:

Primary Compatibility Parameters:

• Color: Yellow (590nm dominant wavelength)
• Package: 0603 (1608 Metric) surface mount
• Lens Type: Diffused white lens
• Mounting: Surface mount technology

Secondary Compatibility Parameters:

• Forward voltage (Vf): 1.9V to 2.2V range acceptable for standard LED circuits
• Test current: 20mA standard operating condition
• Physical dimensions: 1.60mm L x 0.80mm W (identical across all parts)
• Height: Maximum 0.55mm (allows 0.46mm substitute)

Non-Critical Variations:

• Millicandela rating: 50mcd to 63mcd (brightness variation within typical application tolerance)
• Viewing angle: 132° to 149° (both provide wide-angle indication)
• Moisture sensitivity level: MSL 3 or MSL 4 (both acceptable for standard storage)

The SML-E12Y8WT86 meets all primary and secondary compatibility parameters and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The SML-E12Y8WT86 is a qualified substitute for the FY1112C-TR based on matching package, color, wavelength, and mounting specifications. The following factors support this substitution:

1. Package Compatibility: Both parts use identical 0603 (1608 Metric) surface mount package with matching footprint dimensions (1.60mm L x 0.80mm W).

2. Electrical Compatibility: Forward voltage difference (1.9V vs 2.2V) falls within standard LED circuit design tolerance. Both operate at 20mA test current. Circuit designs accommodating 1.9V to 2.2V forward voltage range support both parts without modification.

3. Optical Compatibility: Identical dominant wavelength (590nm), lens color (white), and lens transparency (diffused) ensure equivalent visual indication performance. The 63mcd brightness of the substitute exceeds the 50mcd of the main part, providing improved visibility margin.

4. Compliance Status: The SML-E12Y8WT86 carries active product status with ROHS3 compliance and improved moisture sensitivity level (MSL 3 vs MSL 4), supporting long-term supply chain reliability.

5. Physical Clearance: The substitute height of 0.46mm is lower than the main part maximum of 0.55mm, ensuring compatibility with existing PCB clearance specifications.

Substitution Constraints:

The FY1112C-TR viewing angle specification (132°, 149°) is not provided for the SML-E12Y8WT86. Applications requiring specific viewing angle verification should confirm the substitute meets application-specific optical requirements through direct measurement or manufacturer datasheet review.

Frequently Asked Questions (FAQ)

Q: Can the SML-E12Y8WT86 replace the FY1112C-TR in existing designs without circuit modification?

A: The SML-E12Y8WT86 is compatible with circuits designed for the FY1112C-TR when the circuit accommodates forward voltage between 1.9V and 2.2V. The 0.3V difference is within standard LED circuit design tolerance. No component value changes are required for standard series resistor configurations.

Q: What is the impact of the 13mcd brightness difference between the two parts?

A: The SML-E12Y8WT86 provides 63mcd compared to the FY1112C-TR 50mcd, representing a 26% brightness increase. This higher brightness improves visibility margin and does not create compatibility issues. Applications requiring specific brightness levels should confirm the substitute meets minimum visibility requirements.

Q: Are the physical dimensions identical between the two parts?

A: Yes. Both parts share identical length (1.60mm) and width (0.80mm) dimensions, ensuring identical PCB footprint compatibility. The substitute height of 0.46mm is lower than the main part maximum of 0.55mm, providing additional clearance margin.

Q: What is the significance of the MSL rating difference?

A: The FY1112C-TR carries MSL 4 (72 hours), while the SML-E12Y8WT86 carries MSL 3 (168 hours). MSL 3 provides extended moisture protection and longer shelf life before reflow soldering. This represents an improvement in component handling and storage requirements.

Q: Is the substitute part currently available?

A: The SML-E12Y8WT86 is classified as active product status with 5400 pieces in stock, compared to the FY1112C-TR obsolete status with 839 pieces remaining. The substitute provides reliable long-term supply availability.

Q: Are there any regulatory or compliance differences between the parts?

A: Both parts carry identical REACH Unaffected and EAR99 ECCN classifications. The SML-E12Y8WT86 includes ROHS3 compliance certification, supporting modern supply chain requirements. Both parts share identical HTSUS classification (8541.41.0000).

Q: What packaging format is available for the SML-E12Y8WT86?

A: The SML-E12Y8WT86 is supplied in Tape & Reel (TR) format, standard for high-volume surface mount assembly operations. This packaging format is compatible with automated pick-and-place equipment used in standard PCB manufacturing processes.