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SM0603BWC Equivalent & Substitute Parts
Part Overview
The SM0603BWC is a blue LED indicator in 0603 (1608 Metric) surface mount package manufactured by Bivar Inc. This component is classified as obsolete product status. The part features a discrete 3.9V forward voltage with 5.1mcd brightness rating and 446nm dominant wavelength. Due to obsolete status, equivalent substitute parts with compatible electrical and mechanical parameters are necessary for ongoing design requirements and procurement continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Package / Case | 0603 (1608 Metric) |
| Mounting Type | Surface Mount |
| Color | Blue |
| Lens Transparency | Clear |
| Voltage - Forward (Vf) (Typ) | 3.9V |
| Current - Test | 20mA |
| Wavelength - Dominant | 446nm |
| Size / Dimension | 1.60mm L x 0.80mm W |
| Height (Max) | 0.80mm |
| Moisture Sensitivity Level (MSL) | 4 (72 Hours) |
Substitute Part Grouping Explanation
Substitution of the SM0603BWC is based on the following allowed parameters:
Mechanical Compatibility:
- Package / Case: 0603 (1608 Metric)
- Mounting Type: Surface Mount
- Lens Transparency: Clear
- Size / Dimension: 1.60mm L x 0.80mm W
Electrical Compatibility:
- Color: Blue
- Current - Test: 20mA
- Moisture Sensitivity Level (MSL): 4 (72 Hours)
The SM0603SBWC meets all mechanical compatibility requirements and maintains the same color, test current, and MSL rating. Variations in forward voltage (3V vs 3.9V), millicandela rating (115mcd vs 5.1mcd), wavelength specifications, and viewing angle are within acceptable substitution parameters for this product category.
Parameter Comparison
| Parameter | SM0603BWC (Main Part) | SM0603SBWC (Substitute) |
|---|---|---|
| Manufacturer | Bivar Inc. | Bivar Inc. |
| Product Status | Obsolete | Active |
| Package / Case | 0603 (1608 Metric) | 0603 (1608 Metric) |
| Mounting Type | Surface Mount | Surface Mount |
| Color | Blue | Blue |
| Lens Transparency | Clear | Clear |
| Voltage - Forward (Vf) (Typ) | 3.9V | 3V |
| Current - Test | 20mA | 20mA |
| Wavelength - Dominant | 446nm | 470nm |
| Millicandela Rating | 5.1mcd | 115mcd |
| Viewing Angle | 110° | 130° |
| Size / Dimension | 1.60mm L x 0.80mm W | 1.60mm L x 0.80mm W |
| Height (Max) | 0.80mm | 0.60mm |
| Moisture Sensitivity Level (MSL) | 4 (72 Hours) | 4 (72 Hours) |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8541.41.0000 | 8541.41.0000 |
Engineering Selection Recommendations
The SM0603SBWC is an active product substitute for the obsolete SM0603BWC. Both components share identical package specifications, mounting type, and MSL rating. The substitute part offers improved availability through active product status and RoHS3 compliance certification.
The SM0603SBWC operates at a lower forward voltage (3V vs 3.9V) and provides higher brightness output (115mcd vs 5.1mcd). The substitute maintains the same test current (20mA) and mechanical footprint, enabling direct PCB layout compatibility. Height reduction from 0.80mm to 0.60mm on the substitute part presents no assembly or functional constraints for standard surface mount processes.
Both parts carry identical export classification (EAR99) and tariff codes (8541.41.0000).
Frequently Asked Questions (FAQ)
Q: Can SM0603SBWC replace SM0603BWC in existing designs?
A: Yes. Both parts share identical package specifications (0603 / 1608 Metric), mounting type (Surface Mount), and mechanical dimensions (1.60mm L x 0.80mm W). PCB footprints are directly compatible.
Q: What are the electrical differences between these parts?
A: The SM0603SBWC operates at 3V forward voltage compared to 3.9V for the SM0603BWC. The substitute provides 115mcd brightness versus 5.1mcd for the main part. Both are tested at 20mA current.
Q: Are there wavelength differences?
A: Yes. The SM0603BWC has a dominant wavelength of 446nm (peak 428nm), while the SM0603SBWC has a dominant wavelength of 470nm (peak 468nm). Both are classified as blue LEDs.
Q: What is the viewing angle difference?
A: The SM0603BWC provides 110° viewing angle. The SM0603SBWC provides 130° viewing angle.
Q: Is the substitute part smaller?
A: The SM0603SBWC has a maximum height of 0.60mm compared to 0.80mm for the SM0603BWC. Lateral dimensions remain identical.
Q: What is the product status difference?
A: The SM0603BWC is obsolete. The SM0603SBWC is active product with RoHS3 compliance certification.
Q: Are packaging options different?
A: The SM0603BWC is supplied in standard packaging. The SM0603SBWC is supplied in Tape & Reel (TR) format.
Q: Do both parts have the same moisture sensitivity rating?
A: Yes. Both parts are rated MSL 4 (72 Hours).
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