SM1206HC-IL Red LED 1206 SMD - Equivalent & Substitute Parts

Part Overview

The SM1206HC-IL is a red LED indication component in 1206 SMD (Surface Mount Device) package manufactured by Bivar Inc. This discrete LED operates at 2V forward voltage with a 45mcd brightness rating and 643nm dominant wavelength. The product is Active status and RoHS3 Compliant, making it suitable for standard red indication applications in consumer and industrial electronics. Alternative equivalent parts may be necessary due to inventory constraints, regional supplier availability, or specific electrical parameter requirements for circuit optimization.

Substiute Parts

SM1206HC-IL

Bivar Inc.In Stock: 952SM1206HC-IL Datasheet

Current PartRFQ

APT3216LSECK/J3-PRV

KingbrightIn Stock: 10289APT3216LSECK/J3-PRV Datasheet

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XZMDK55W-1

SunLEDIn Stock: 5787XZMDK55W-1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the SM1206HC-IL is permissible when the alternative component maintains compatibility within the following critical parameters:

Package Compatibility: All substitute parts must use the 1206 (3216 Metric) package format for direct PCB footprint compatibility.

Electrical Parameters: Forward voltage (Vf) tolerance is critical for circuit design. The SM1206HC-IL operates at 2V typical. Substitutes within 1.8V to 2V forward voltage range are acceptable for standard current-limiting resistor designs, with minor adjustments to series resistance if necessary.

Optical Characteristics: Color consistency (Red spectrum) and wavelength range (625nm to 660nm dominant wavelength) maintain visual indication consistency. Brightness variation (40mcd to 79mcd millicandela rating) is acceptable based on circuit current rating and application brightness requirements.

Current Rating: Test current specifications from 2mA to 20mA indicate the component family supports standard LED operation ranges. Circuits designed for the 20mA test current of SM1206HC-IL are compatible with substitutes rated at 20mA test current.

Regulatory Compliance: RoHS3 compliance is required. All substitute parts listed maintain this certification.

Parameter Comparison

Engineering Selection Recommendations

SM1206HC-IL (Bivar Inc.): Primary component selection. Active product status with established supply. RoHS3 compliant. Suitable for applications requiring 140° wide viewing angle and 2V forward voltage specification.

APT3216LSECK/J3-PRV (Kingbright): Qualified substitute with MSL 3 rating, providing superior moisture resistance compared to the primary component. Lower forward voltage (1.8V) and test current (2mA) require circuit analysis for compatibility with existing current-limiting resistor designs. Lens style is rectangular rather than round, which may affect optical distribution in certain applications. Millicandela rating (40mcd) is closely matched to the primary component. REACH Unaffected status provides additional compliance coverage.

XZMDK55W-1 (SunLED): Qualified substitute with equivalent forward voltage (1.95V) and test current (20mA) matching the primary component's circuit parameters. Highest brightness rating (79mcd) among available substitutes. MSL 3 rating provides superior moisture resistance. Lens style is rectangular, matching the Kingbright alternative. REACH Unaffected status provides additional compliance coverage.

Frequently Asked Questions (FAQ)

Q: Can APT3216LSECK/J3-PRV replace SM1206HC-IL directly without circuit modification? A: APT3216LSECK/J3-PRV maintains 1206 package compatibility and RoHS3 compliance. The 1.8V forward voltage (versus 2V) and 2mA test current require evaluation of the series current-limiting resistor. If the original circuit uses a resistor selected for 2V operation, the lower forward voltage will increase LED current unless the resistor value is adjusted upward. PCB height clearance is improved (0.75mm versus 1.40mm).

Q: Which substitute is most compatible with the original circuit design? A: XZMDK55W-1 provides closest electrical parameter matching with 1.95V forward voltage and 20mA test current, enabling direct substitution in most standard circuit designs without resistor adjustment. Lens style difference (rectangular versus round) affects light distribution pattern.

Q: How do millicandela ratings affect substitution? A: All rated components (40mcd to 79mcd) are within the red LED indication spectrum. Component selection based on millicandela rating depends on the application brightness requirement. XZMDK55W-1 at 79mcd is suitable for applications requiring maximum brightness; APT3216LSECK/J3-PRV at 40mcd is suitable for standard indication applications.

Q: What is the impact of MSL (Moisture Sensitivity Level) differences? A: SM1206HC-IL is rated MSL 4 (72 hours at 30°C/85% RH). Both APT3216LSECK/J3-PRV and XZMDK55W-1 are rated MSL 3 (168 hours), providing superior moisture resistance. This affects storage conditions and reflow processing windows. Higher MSL ratings provide greater process margin in humidity-controlled environments.

Q: Are wavelength differences significant for visual indication applications? A: All three components emit red light within 625nm to 643nm dominant wavelength range, producing visually similar red indication. Wavelength variation (625nm, 630nm, 643nm) is imperceptible to human vision in standard indication applications.

Q: Can viewing angle differences affect application performance? A: SM1206HC-IL provides 140° viewing angle versus 120° for both substitutes. Applications requiring wide off-axis visibility should specify SM1206HC-IL or evaluate specific line-of-sight requirements. Standard front-facing indicator applications are unaffected by 20° viewing angle reduction.