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SM1206URC-IL Red LED 1206 SMD Equivalent & Substitute Parts
Part Overview
The SM1206URC-IL is an active red LED indication component manufactured by Bivar Inc. in 1206 (3216 Metric) surface mount package format. This discrete red LED operates at 2.1V forward voltage with 220mcd brightness rating and 640nm dominant wavelength, designed for standard indication applications requiring clear lens optics. The component is RoHS3 compliant and currently in active production status with 866 units in stock.
Equivalent and substitute parts are identified when alternative red LED components share the same 1206 package footprint, surface mount configuration, and red color specification, while maintaining functional compatibility within acceptable parameter tolerances for indication circuit applications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Package / Case | 1206 (3216 Metric) | - |
| Mounting Type | Surface Mount | - |
| Color | Red | - |
| Lens Transparency | Clear | - |
| Voltage - Forward (Vf) (Typ) | 2.1 | V |
| Current - Test | 20 | mA |
| Wavelength - Dominant | 640 | nm |
| Millicandela Rating | 220 | mcd |
| Size / Dimension | 3.20mm L x 1.60mm W | - |
| RoHS Status | ROHS3 Compliant | - |
Substitute Part Grouping Explanation
Substitute parts for the SM1206URC-IL are identified based on the following mandatory compatibility criteria:
Primary Compatibility Requirements:
- Package / Case: 1206 (3216 Metric) surface mount footprint
- Color: Red LED indication
- Lens Transparency: Clear optics
- Mounting Type: Surface mount configuration
- RoHS Status: ROHS3 Compliant
Secondary Parameter Tolerance Ranges:
- Voltage - Forward (Vf): 1.8V to 2.1V typical operating range
- Wavelength - Dominant: 625nm to 640nm red spectrum
- Current - Test: 2mA to 20mA test conditions
- Millicandela Rating: 40mcd to 220mcd brightness range
Substitute parts must maintain identical footprint dimensions (3.20mm L x 1.60mm W) and surface mount assembly compatibility. Variations in forward voltage, brightness rating, and viewing angle are acceptable within the specified ranges for indication circuit applications where the LED functions as a status indicator rather than a precision optical component.
Parameter Comparison
| Parameter | SM1206URC-IL (Bivar) | APT3216LSECK/J3-PRV (Kingbright) | XZMDK55W-1 (SunLED) |
|---|---|---|---|
| Manufacturer | Bivar Inc. | Kingbright | SunLED |
| Package / Case | 1206 (3216 Metric) | 1206 (3216 Metric) | 1206 (3216 Metric) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Color | Red | Red | Red |
| Lens Transparency | Clear | Clear | Clear |
| Voltage - Forward (Vf) (Typ) | 2.1V | 1.8V | 1.95V |
| Current - Test | 20mA | 2mA | 20mA |
| Wavelength - Dominant | 640nm | 625nm | 630nm |
| Wavelength - Peak | 655nm | 640nm | 645nm |
| Millicandela Rating | 220mcd | 40mcd | 79mcd |
| Viewing Angle | 30° | 120° | 120° |
| Lens Style | Round with Flat Top | Rectangle with Flat Top | Rectangle with Flat Top |
| Size / Dimension | 3.20mm L x 1.60mm W | 3.20mm L x 1.60mm W | 3.20mm L x 1.60mm W |
| Height (Max) | 1.40mm | 0.75mm | 0.75mm |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 4 (72 Hours) | 3 (168 Hours) | 3 (168 Hours) |
| Product Status | Active | Active | Active |
Engineering Selection Recommendations
SM1206URC-IL (Bivar Inc.) - Primary Component
The SM1206URC-IL serves as the reference part with 220mcd brightness at 2.1V forward voltage and 30° viewing angle. This configuration is suitable for applications requiring higher brightness output and narrower viewing angle characteristics. All three components maintain active production status and ROHS3 compliance.
APT3216LSECK/J3-PRV (Kingbright) - Substitute Option
The APT3216LSECK/J3-PRV operates at lower forward voltage (1.8V) and lower brightness (40mcd) with wider 120° viewing angle. This substitute is applicable in circuits where reduced power consumption is required or where broader light distribution is beneficial. The component features lower profile height (0.75mm vs 1.40mm) and improved moisture sensitivity rating (MSL 3 vs MSL 4). Packaging format differs (Cut Tape & Digi-Reel vs Tape & Reel).
XZMDK55W-1 (SunLED) - Substitute Option
The XZMDK55W-1 operates at 1.95V forward voltage with 79mcd brightness and 120° viewing angle. This substitute provides intermediate brightness characteristics between the primary part and the Kingbright option, with matching 20mA test current specification. The component shares identical footprint dimensions and height profile (0.75mm) with the Kingbright substitute. Moisture sensitivity rating is MSL 3 (168 Hours).
All three components are RoHS3 compliant and maintain identical 1206 package footprint compatibility for direct PCB assembly substitution.
Frequently Asked Questions (FAQ)
Q: Can APT3216LSECK/J3-PRV replace SM1206URC-IL in existing circuit designs?
A: APT3216LSECK/J3-PRV is a functional substitute provided the circuit design accommodates the lower forward voltage (1.8V vs 2.1V) and lower brightness output (40mcd vs 220mcd). The 1206 package footprint is identical, enabling direct PCB placement. Circuit current limiting resistor values may require adjustment to account for the 0.3V voltage difference.
Q: What are the key differences between XZMDK55W-1 and APT3216LSECK/J3-PRV?
A: Both components share identical 1206 package footprint and 0.75mm maximum height. XZMDK55W-1 provides higher brightness (79mcd vs 40mcd) and matches the primary part's 20mA test current specification. APT3216LSECK/J3-PRV operates at lower forward voltage (1.8V) and lower test current (2mA), resulting in reduced power consumption.
Q: Are there viewing angle considerations when substituting these parts?
A: Yes. The SM1206URC-IL features 30° viewing angle with round lens geometry, while both substitute parts feature 120° viewing angle with rectangular lens geometry. Applications requiring narrow-angle light distribution should retain the primary SM1206URC-IL component. Applications requiring wide-angle distribution can utilize either substitute.
Q: What is the impact of different lens styles on optical performance?
A: The SM1206URC-IL uses round lens with flat top geometry, while APT3216LSECK/J3-PRV and XZMDK55W-1 use rectangular lens geometry. Both lens styles maintain clear transparency. The round lens concentrates light output within 30°, while rectangular lenses distribute light across 120°. Lens style selection depends on application-specific optical requirements.
Q: Do moisture sensitivity differences affect component selection?
A: The SM1206URC-IL carries MSL 4 (72 Hours) rating, while both substitute parts carry MSL 3 (168 Hours) rating. MSL 3 components allow extended storage and handling time before reflow soldering. For applications with standard manufacturing timelines, both ratings are acceptable. Extended storage periods favor the substitute parts with MSL 3 classification.
Q: Can these components be used interchangeably in high-volume production?
A: All three components maintain identical 1206 (3216 Metric) package footprint and surface mount assembly compatibility. Production line equipment requires no modification for substitution. Circuit design must accommodate forward voltage and brightness variations. Component sourcing can alternate between manufacturers based on availability and lead time without PCB redesign.
Q: What compliance certifications apply to all substitute options?
A: All three components are RoHS3 compliant and carry EAR99 ECCN classification with identical HTSUS code 8541.41.0000. REACH status for substitute parts is listed as REACH Unaffected. Regulatory compliance is maintained across all substitution options.
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