SM1206SGC-IL Equivalent & Substitute Parts

Part Overview

The SM1206SGC-IL is a green LED indication component manufactured by Bivar Inc. in a 1206 (3216 Metric) surface mount package. This discrete LED operates at a forward voltage of 2.1V with a dominant wavelength of 565nm and provides 80 millicandela brightness at 20mA test current. The component is classified as obsolete, necessitating identification of active equivalent parts for ongoing production and procurement requirements.

Substiute Parts

SM1206SGC-IL

Bivar Inc.In Stock: 763SM1206SGC-IL Datasheet

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SM1206GC-IL

Bivar Inc.In Stock: 6642SM1206GC-IL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SM1206SGC-IL is based on strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Package / Case: 1206 (3216 Metric)
• Mounting Type: Surface Mount
• Color: Green
• Lens Style: Round with Flat Top
• Size / Dimension: 3.20mm L x 1.60mm W
• Height (Max): 1.40mm
• Viewing Angle: 30°
• Current - Test: 20mA
• Moisture Sensitivity Level (MSL): 4 (72 Hours)

Allowable Variation Parameters:

• Voltage - Forward (Vf): Within circuit design tolerance
• Wavelength - Dominant: Within green spectrum range (565nm to 570nm acceptable)
• Millicandela Rating: Brightness variation acceptable if application permits

The SM1206GC-IL qualifies as a direct substitute based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

The SM1206GC-IL is the qualified substitute for the obsolete SM1206SGC-IL based on the following engineering criteria:

Product Status Alignment: The SM1206GC-IL maintains active product status with Bivar Inc., ensuring continued availability and supply chain reliability. The main part SM1206SGC-IL is classified as obsolete, making substitution necessary for ongoing procurement.

Physical and Electrical Compatibility: Both components share identical package dimensions (1206 / 3216 Metric), mounting type (Surface Mount), and optical characteristics (Round with Flat Top lens, 1.10mm diameter, 30° viewing angle). PCB footprint compatibility is assured.

Voltage Specification: The forward voltage differential of 0.1V (2.1V versus 2V) falls within acceptable circuit design tolerance for LED indication applications. Current limiting resistor values may require minor adjustment based on specific circuit requirements.

Wavelength Specification: The dominant wavelength shift from 565nm to 570nm remains within the green spectrum range. Both components share identical peak wavelength (568nm), ensuring consistent color perception.

Brightness Consideration: The SM1206GC-IL provides 40mcd compared to the main part's 80mcd. This 50% reduction in brightness must be evaluated against application visibility requirements. For standard indication applications, this reduction is typically acceptable.

Compliance and Certifications: The SM1206GC-IL carries ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. Moisture sensitivity level remains identical at MSL 4 (72 Hours).

Packaging Format: The substitute is supplied in Tape & Reel (TR) format, the standard production packaging for surface mount components, facilitating automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the SM1206GC-IL be used as a direct replacement for SM1206SGC-IL in existing designs?

A: Yes, the SM1206GC-IL is a direct substitute for PCB footprint and assembly compatibility. The 1206 package dimensions, surface mount configuration, and optical characteristics are identical. However, the reduced brightness (40mcd versus 80mcd) and slightly lower forward voltage (2V versus 2.1V) must be evaluated for your specific application requirements.

Q: What is the significance of the brightness difference between these two parts?

A: The SM1206GC-IL provides 50% lower brightness (40mcd) compared to the SM1206SGC-IL (80mcd). For standard LED indication applications where visibility is not critical, this reduction is typically acceptable. Applications requiring high brightness or long-distance visibility may need alternative solutions.

Q: Are there any circuit design changes required when substituting to SM1206GC-IL?

A: The forward voltage difference of 0.1V (2.1V to 2V) may require minor adjustment to current limiting resistor values to maintain consistent LED brightness and operating current at 20mA. Recalculation of the series resistor is recommended for precision applications.

Q: What is the difference between SM1206SGC-IL and SM1206GC-IL part numbers?

A: The "S" in SM1206SGC-IL indicates a specific variant within Bivar's product line. The SM1206GC-IL is the active production equivalent. Both are manufactured by Bivar Inc. in the same 1206 package with identical physical dimensions and mounting characteristics.

Q: Is the SM1206GC-IL available in the same packaging as the original part?

A: The SM1206SGC-IL packaging is not specified in available data. The SM1206GC-IL is supplied in Tape & Reel (TR) format, which is the standard production packaging for 1206 surface mount LEDs and is compatible with automated assembly equipment.

Q: What are the moisture sensitivity requirements for storage?

A: Both components carry MSL 4 (72 Hours) rating, indicating they must be stored in controlled humidity conditions. Components can be exposed to ambient conditions (up to 30°C and 85% relative humidity) for a maximum of 72 hours before requiring dry storage or baking prior to reflow soldering.

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

A: The SM1206GC-IL carries ROHS3 compliance and REACH unaffected status. The main part SM1206SGC-IL compliance status is not specified. The substitute meets current environmental and regulatory requirements for electronic component manufacturing and use.

Q: Can the wavelength difference (565nm to 570nm) affect color perception?

A: Both wavelengths fall within the green spectrum range. The peak wavelength for both components is identical at 568nm. The 5nm difference in dominant wavelength is imperceptible to human vision and will not affect color perception in indication applications.