SM1206UOC Orange LED 1206 SMD Equivalent & Substitute Parts

Part Overview

The SM1206UOC is an orange 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 80mcd brightness rating and 625nm dominant wavelength, designed for standard indicator applications requiring clear lens visibility. The part maintains Active product status and is RoHS3 compliant with MSL 4 moisture sensitivity rating. Substitute parts are identified based on matching electrical characteristics, package compatibility, and mechanical form factors that permit direct circuit board replacement or functional equivalence in indicator circuit applications.

Substiute Parts

SM1206UOC

Bivar Inc.In Stock: 836SM1206UOC Datasheet

Current PartRFQ

LTST-C150AKT

LITEONIn Stock: 16271LTST-C150AKT Datasheet

SimilarRFQ

LTST-C150YKT

Lite-On Inc.In Stock: 60927LTST-C150YKT Datasheet

SimilarRFQ

LTST-C190KFKT

Lite-On Inc.In Stock: 68188LTST-C190KFKT Datasheet

SimilarRFQ

LTST-C190YKT

Lite-On Inc.In Stock: 143971LTST-C190YKT Datasheet

SimilarRFQ

SML-LX1206YC-TR

Lumex Opto/Components Inc.In Stock: 3121SML-LX1206YC-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SM1206UOC are identified based on the following critical parameters that determine functional and mechanical compatibility:

Primary Substitution Criteria:

• Package / Case Format: 1206 (3216 Metric) surface mount package permits direct PCB footprint compatibility
• Voltage - Forward (Vf): 2.0V to 2.1V range ensures circuit compatibility with existing current-limiting resistor designs
• Current - Test Rating: 20mA operation at specified test conditions
• Lens Transparency: Clear lens maintains optical visibility characteristics
• Mounting Type: Surface mount technology for automated assembly compatibility
• RoHS3 Compliance: Environmental and regulatory requirement match
• Lens Style: Rectangle with flat top geometry

Secondary Consideration Parameters:

• Millicandela Rating: Brightness levels between 6mcd and 90mcd accommodate various indication intensity requirements
• Wavelength - Dominant: Color specification (orange, amber, yellow) determines visual indication function
• Viewing Angle: 130° to 140° range provides acceptable visibility envelope
• Moisture Sensitivity Level: MSL 3 or MSL 4 ratings ensure storage and assembly process compatibility

Parts listed as substitutes meet the primary criteria for direct replacement or functional equivalence. Parts with different package formats (0603) or significantly different electrical parameters are identified separately with engineering notes regarding application limitations.

Parameter Comparison

Engineering Selection Recommendations

Direct 1206 Package Substitutes (Footprint Compatible):

The SML-LX1206YC-TR (Lumex Opto/Components Inc.) and LTST-C150 series (Lite-On Inc.) parts maintain identical 1206 (3216 Metric) package dimensions and surface mount footprint compatibility with the SM1206UOC. These parts are suitable for direct PCB replacement without layout modification.

SML-LX1206YC-TR Characteristics:

• Maintains 1206 package format with 3.20 x 1.60mm dimensions and 1.10mm maximum height
• Forward voltage of 2.0V operates within acceptable circuit tolerance range for designs specified at 2.1V
• 39mcd brightness rating provides intermediate indication intensity between low-brightness and high-brightness applications
• Yellow color (590nm peak wavelength) differs from orange specification; selection depends on visual indication requirements
• RoHS3 compliant with MSL 3 rating provides improved moisture tolerance compared to SM1206UOC MSL 4
• Active product status with 3056 units in stock

LTST-C150AKT (Amber) and LTST-C150YKT (Yellow) Characteristics:

• Both maintain 1206 package compatibility with identical 3.20 x 1.60mm dimensions
• Forward voltage of 2.1V matches SM1206UOC specification exactly
• Test current of 10mA differs from SM1206UOC 20mA specification; circuit resistor values require adjustment for equivalent brightness performance
• Millicandela ratings of 6mcd represent significantly lower brightness; suitable only for low-intensity indication applications
• Viewing angle of 130° provides acceptable visibility with 10° reduction from SM1206UOC
• RoHS3 compliant with MSL 3 rating and REACH unaffected status
• High inventory availability (16210 units amber, 60846 units yellow)

Alternative Package Substitutes (0603 Format - PCB Layout Modification Required):

The LTST-C190KFKT (orange) and LTST-C190YKT (yellow) parts utilize 0603 (1608 Metric) package format, requiring PCB footprint redesign. These parts are not direct replacements but provide functional equivalence in space-constrained applications.

LTST-C190KFKT (Orange, 0603) Characteristics:

• 0603 package with 1.60 x 0.80mm dimensions and 0.90mm maximum height enables compact board layouts
• Forward voltage of 2.0V operates within acceptable tolerance for 2.1V designs
• 90mcd brightness rating exceeds SM1206UOC 80mcd specification, providing enhanced indication visibility
• 605nm dominant wavelength maintains orange color specification within acceptable range
• 20mA test current matches SM1206UOC specification, enabling direct resistor value compatibility
• RoHS3 compliant with MSL 3 rating and REACH unaffected status
• Cut Tape (CT) & Digi-Reel® packaging format; 68100 units in stock

LTST-C190YKT (Yellow, 0603) Characteristics:

• 0603 package format for compact applications
• Forward voltage of 2.1V matches SM1206UOC exactly
• 6mcd brightness rating represents low-intensity indication only
• 588nm peak wavelength provides yellow color specification
• 10mA test current requires circuit resistor adjustment
• RoHS3 compliant with MSL 3 rating; 143918 units in stock

Compliance and Regulatory Alignment: All substitute parts maintain RoHS3 compliance and EAR99 ECCN classification matching the SM1206UOC. REACH unaffected status is documented for Lite-On and Lumex parts. Moisture sensitivity levels of MSL 3 for substitute parts provide improved storage and assembly process tolerance compared to SM1206UOC MSL 4 specification.

Frequently Asked Questions (FAQ)

Q: Can LTST-C150AKT or LTST-C150YKT parts replace SM1206UOC in existing circuit designs without modification?

A: LTST-C150AKT and LTST-C150YKT maintain identical 1206 package footprint and forward voltage (2.1V) compatibility. However, test current specification differs (10mA versus 20mA). Circuit resistor values must be recalculated to achieve equivalent brightness performance. Color differs from orange specification; amber (602nm) and yellow (588nm) wavelengths produce different visual indication. PCB layout remains unchanged; only resistor component values require adjustment.

Q: What is the brightness difference between SM1206UOC (80mcd) and substitute parts?

A: SML-LX1206YC-TR provides 39mcd (approximately 49% of SM1206UOC brightness). LTST-C150AKT and LTST-C150YKT provide 6mcd (approximately 7.5% of SM1206UOC brightness). LTST-C190KFKT provides 90mcd (approximately 112% of SM1206UOC brightness). Brightness selection depends on application visibility requirements and ambient lighting conditions.

Q: Are 0603 package parts (LTST-C190KFKT, LTST-C190YKT) direct replacements for 1206 package SM1206UOC?

A: No. 0603 (1608 Metric) and 1206 (3216 Metric) packages have different footprint dimensions. LTST-C190KFKT and LTST-C190YKT require PCB layout redesign and cannot be installed in existing 1206 footprints. These parts are functional alternatives for new designs requiring compact board space.

Q: Which substitute part provides the closest electrical match to SM1206UOC?

A: SML-LX1206YC-TR provides the closest match: identical 1206 package, 2.0V forward voltage (within 0.1V tolerance), 20mA test current, and clear lens with rectangle flat-top style. Primary difference is yellow color (590nm) versus orange (625nm) specification. This part is suitable for applications where color indication function is not critical to circuit operation.

Q: What is the impact of MSL rating differences between SM1206UOC (MSL 4) and substitute parts (MSL 3)?

A: MSL 4 rating allows 72 hours of moisture exposure before reflow soldering. MSL 3 rating allows 168 hours (7 days) of moisture exposure. Substitute parts with MSL 3 provide extended shelf life and assembly process tolerance. This represents an improvement in handling flexibility; no negative impact on final product performance.

Q: Can LTST-C150AKT (10mA test current) be used in circuits designed for SM1206UOC (20mA test current)?

A: Yes, with circuit modification. Current-limiting resistor value must be recalculated based on 10mA test current specification. Brightness output will be lower than original design. Forward voltage remains compatible at 2.1V. Circuit redesign is required; direct substitution without resistor modification will result in reduced brightness performance.

Q: Are all substitute parts RoHS3 compliant and suitable for regulated applications?

A: Yes. All listed substitute parts maintain RoHS3 compliance and EAR99 ECCN classification matching SM1206UOC. Lite-On and Lumex parts include REACH unaffected status documentation. All parts are suitable for applications requiring environmental and regulatory compliance certification.

Q: What packaging format differences exist between substitute parts?

A: SM1206UOC, SML-LX1206YC-TR, LTST-C150AKT, and LTST-C150YKT are supplied in Tape & Reel (TR) format suitable for automated pick-and-place assembly. LTST-C190KFKT and LTST-C190YKT are supplied in Cut Tape (CT) & Digi-Reel® format. Packaging format does not affect component performance; selection depends on assembly equipment compatibility and procurement volume requirements.

Q: Which substitute part is recommended for applications requiring maximum brightness?

A: LTST-C190KFKT (0603 package, 90mcd) provides the highest brightness rating among substitute parts. This part exceeds SM1206UOC brightness by approximately 12%. However, 0603 package requires PCB layout modification. For 1206 package format with maximum brightness, SML-LX1206YC-TR (39mcd) is the highest-brightness option, though still lower than SM1206UOC.