SM1206UHC-IL Equivalent & Substitute Parts

Part Overview

The SM1206UHC-IL is a red LED indication component manufactured by Bivar Inc. in 1206 (3216 Metric) surface mount package format. This discrete LED operates at 2.1V forward voltage with a dominant wavelength of 631nm and peak wavelength of 645nm, delivering 300mcd brightness at 20mA test current. The component is classified as obsolete product status, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement continuity.

Substiute Parts

SM1206UHC-IL

Bivar Inc.In Stock: 967SM1206UHC-IL Datasheet

Current PartRFQ

SM1206RC-IL

Bivar Inc.In Stock: 1098SM1206RC-IL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SM1206UHC-IL is determined by strict alignment of the following critical parameters:

Package Compatibility: The substitute part must utilize 1206 (3216 Metric) surface mount package with identical mechanical dimensions (3.20mm L x 1.60mm W, 1.40mm max height) to ensure PCB footprint compatibility.

Optical Characteristics: The substitute must be a red LED with lens color colorless and clear transparency. Wavelength specifications (dominant and peak) and millicandela rating establish the optical performance envelope.

Electrical Parameters: Forward voltage (Vf) and test current (20mA) define the electrical operating point. Viewing angle (30°) and lens style (round with flat top) establish the optical geometry.

Environmental Compliance: Moisture sensitivity level (MSL 4, 72 Hours) and regulatory classifications (ECCN EAR99, HTSUS 8541.41.0000) must be maintained.

The SM1206RC-IL qualifies as a substitute part based on matching package type, surface mount configuration, red color, identical mechanical dimensions, equivalent electrical test parameters, and identical MSL rating.

Parameter Comparison

Engineering Selection Recommendations

The SM1206RC-IL serves as the primary substitute for the obsolete SM1206UHC-IL based on product status alignment and compliance certification. The substitute part maintains active product status with ROHS3 compliance, ensuring long-term availability and regulatory adherence for new designs and production continuity.

Mechanical and electrical compatibility is established through identical package dimensions, surface mount configuration, and test current specifications. Both components share equivalent MSL ratings and regulatory classifications (ECCN EAR99, HTSUS 8541.41.0000).

Differences in millicandela rating (300mcd versus 2.1mcd) and wavelength specifications (dominant 631nm versus 645nm, peak 645nm versus 700nm) reflect distinct optical performance characteristics. Forward voltage differs by 0.1V (2.1V versus 2V). These variations require circuit-level evaluation to confirm functional equivalence within the specific application context.

Frequently Asked Questions (FAQ)

Q: Can SM1206RC-IL be used as a direct replacement for SM1206UHC-IL in existing PCB designs?

A: Both components share identical 1206 (3216 Metric) package dimensions and surface mount footprint compatibility. Mechanical substitution is feasible. Functional equivalence depends on application-specific requirements for brightness (millicandela), wavelength, and forward voltage characteristics.

Q: What are the key differences between these two parts?

A: The primary differences are millicandela rating (300mcd versus 2.1mcd), dominant wavelength (631nm versus 645nm), peak wavelength (645nm versus 700nm), and forward voltage (2.1V versus 2V). Product status differs, with SM1206UHC-IL classified as obsolete and SM1206RC-IL as active.

Q: Why is the SM1206UHC-IL classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The SM1206RC-IL, with active product status, represents the current production equivalent from Bivar Inc.

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

A: Both components share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. SM1206RC-IL includes ROHS3 compliance certification, while SM1206UHC-IL compliance information is not provided in the available data.

Q: What is the significance of the MSL rating for these components?

A: Both parts carry MSL 4 (72 Hours) rating, indicating identical moisture sensitivity and storage requirements. This parameter does not differentiate substitution eligibility.

Q: Can the brightness difference (300mcd versus 2.1mcd) affect circuit performance?

A: Millicandela rating directly impacts LED brightness output. The substantial difference between 300mcd and 2.1mcd requires application-specific evaluation to determine if the substitute provides adequate illumination for the intended function.