SM1206YC-IL Yellow LED 1206 SMD Equivalent & Substitute Parts

Part Overview

The SM1206YC-IL is an active yellow LED indicator manufactured by Bivar Inc. in 1206 (3216 Metric) surface mount package format. This discrete 2V LED operates at 20mA test current with a dominant wavelength of 585nm and provides 16 millicandela brightness output. The component is RoHS3 compliant and available in tape and reel packaging with 954 pieces in current stock inventory.

Substitute parts are identified based on matching electrical characteristics (forward voltage, test current, wavelength range), mechanical compatibility (1206 package, surface mount configuration), and environmental compliance standards. Alternative sources provide equivalent functional performance within the specified parameter ranges.

Substiute Parts

SM1206YC-IL

Bivar Inc.In Stock: 1044SM1206YC-IL Datasheet

Current PartRFQ

QTLP650C3TR

onsemiIn Stock: 692QTLP650C3TR Datasheet

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XZM2ACY55W-1

SunLEDIn Stock: 1749XZM2ACY55W-1 Datasheet

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XZMYK55W-1

SunLEDIn Stock: 2784XZMYK55W-1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SM1206YC-IL are qualified based on the following electrical and mechanical parameters:

Mandatory Matching Criteria:

• Package format: 1206 (3216 Metric)
• Mounting type: Surface Mount
• Color: Yellow
• Forward voltage: 2V nominal
• Test current: 20mA
• Lens transparency: Clear
• Configuration: Standard

Acceptable Parameter Variations:

• Wavelength dominant range: 583nm to 590nm (yellow spectrum)
• Millicandela rating: Components with different brightness levels are substitutable if electrical characteristics match
• Lens style: Round with flat top or rectangle with flat top are both acceptable
• Viewing angle: Variations permitted based on application requirements
• Height: Maximum 1.40mm acceptable
• Moisture sensitivity level: MSL 1 to MSL 4 acceptable

Compliance Requirements:

• RoHS3 compliance required
• ECCN EAR99 classification maintained

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Status):

XZM2ACY55W-1 and XZMYK55W-1 manufactured by SunLED are active products with current production status. Both components maintain identical electrical specifications (2V forward voltage, 20mA test current) and 1206 package compatibility. These parts are RoHS3 compliant and available in tape and reel packaging. The SunLED alternatives provide higher millicandela ratings (347mcd and 148mcd respectively) compared to the original 16mcd specification, with reduced height profiles (0.75mm maximum) suitable for space-constrained applications.

Secondary Substitute (Obsolete Status):

QTLP650C3TR manufactured by onsemi matches the core electrical parameters but carries obsolete product status. This component is suitable only for legacy system maintenance or applications where existing inventory must be maintained. The QTLP650C3TR provides lower brightness output (10mcd) and wider viewing angle (140°) with superior moisture sensitivity rating (MSL 1).

Compliance Verification:

All recommended active substitutes maintain ROHS3 compliance and EAR99 ECCN classification consistent with the original SM1206YC-IL specification. Moisture sensitivity levels range from MSL 1 to MSL 4, accommodating various storage and assembly environment requirements.

Frequently Asked Questions (FAQ)

Q: Can XZM2ACY55W-1 or XZMYK55W-1 be used as direct replacements for SM1206YC-IL?

A: Yes. Both SunLED components share identical electrical characteristics (2V forward voltage, 20mA test current) and 1206 package format. The primary differences are higher brightness output and reduced component height. Electrical circuit compatibility is maintained without modification.

Q: What is the significance of the millicandela rating difference between SM1206YC-IL (16mcd) and the SunLED substitutes (347mcd and 148mcd)?

A: Millicandela rating indicates light intensity output. Higher ratings produce brighter indication. Selection depends on application visibility requirements. If the original 16mcd specification was selected for specific brightness control, higher-output substitutes may require circuit-level adjustment or optical filtering.

Q: Why is QTLP650C3TR listed as obsolete?

A: QTLP650C3TR carries obsolete product status from onsemi. This designation indicates the manufacturer has discontinued active production and support. Use is limited to legacy system maintenance where existing inventory exists or where long-term supply agreements are established.

Q: Are there viewing angle differences between substitute parts?

A: Yes. SM1206YC-IL provides 30° viewing angle. QTLP650C3TR offers 140° wide-angle viewing. SunLED substitutes (XZM2ACY55W-1 and XZMYK55W-1) provide 120° viewing angle. Selection depends on application requirements for light distribution pattern and visibility range.

Q: What is the impact of different lens styles (round versus rectangle)?

A: Lens style affects light distribution pattern and mechanical fit within indicator bezels. Round lenses (SM1206YC-IL) concentrate light output. Rectangular lenses (substitute parts) distribute light across a wider area. Physical mounting compatibility must be verified for specific application enclosures.

Q: Are all substitute parts RoHS3 compliant?

A: XZM2ACY55W-1 and XZMYK55W-1 are explicitly RoHS3 compliant. QTLP650C3TR compliance status is not specified in available documentation. Verification with onsemi is required for applications with mandatory RoHS3 requirements.

Q: What is the difference between wavelength dominant and wavelength peak?

A: Wavelength dominant indicates the primary color perception (585nm to 590nm for yellow LEDs). Wavelength peak indicates the specific wavelength with maximum spectral output. Both values fall within the yellow spectrum range for all listed components.

Q: Can height differences affect PCB assembly?

A: Yes. SM1206YC-IL maximum height is 1.40mm. SunLED substitutes are 0.75mm maximum height. QTLP650C3TR is 1.30mm maximum. Lower-profile components may require reflow profile adjustment or clearance verification for conformal coating or secondary assembly operations.

Q: What does MSL (Moisture Sensitivity Level) mean for component storage?

A: MSL indicates maximum time a component can be exposed to ambient humidity before soldering. SM1206YC-IL (MSL 4) allows 72 hours. SunLED parts (MSL 3) allow 168 hours. QTLP650C3TR (MSL 1) has unlimited storage time. Higher MSL numbers require stricter humidity control during storage and handling.