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Dialight 5988191102F Blue 0805 SMD LED - Equivalent & Substitute Parts
Part Overview
The Dialight 5988191102F is an active blue 473nm LED indication component in 0805 (2012 Metric) surface mount package. This discrete LED operates at 3.2V forward voltage with 140mcd luminous intensity and 140° viewing angle. The component is ROHS3 compliant and REACH unaffected, suitable for standard indication applications requiring blue wavelength output.
Substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and package specifications that allow direct functional replacement in circuit designs.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Color | Blue |
| Wavelength - Dominant | 473nm |
| Voltage - Forward (Vf) (Typ) | 3.2V |
| Current - Test | 20mA |
| Millicandela Rating | 140mcd |
| Viewing Angle | 140° |
| Package / Case | 0805 (2012 Metric) |
| Lens Style | Rectangle with Flat Top |
| Lens Size | 1.40mm x 1.25mm |
| Size / Dimension | 2.00mm L x 1.25mm W |
| Height (Max) | 0.80mm |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitution eligibility is determined by the following critical parameters:
- Package Compatibility: All substitute parts must use 0805 (2012 Metric) surface mount package with matching footprint dimensions (2.00mm L x 1.25mm W)
- Electrical Compatibility: Forward voltage (Vf) tolerance of ±0.1V from 3.2V nominal, test current of 20mA
- Optical Characteristics: Blue wavelength range (470-473nm dominant), lens configuration as Rectangle with Flat Top, lens size 1.40mm x 1.25mm
- Mechanical Fit: Maximum height constraints and mounting type (Surface Mount) must be compatible with PCB assembly processes
- Regulatory Compliance: ROHS3 compliance and REACH unaffected status required
The following parts meet these substitution criteria:
Direct Manufacturer Substitute: 5988191107F (Dialight) - Identical specifications, different packaging (Tape & Reel vs. Strip)
Cross-Manufacturer Substitutes: 150080BS75000 (Würth Elektronik), LTST-C170TBKT (Lite-On Inc.), LTST-C171TBKT (Lite-On Inc.) - Meet electrical and mechanical compatibility within specified tolerances
Parameter Comparison
| Parameter | 5988191102F (Main) | 5988191107F | 150080BS75000 | LTST-C170TBKT | LTST-C171TBKT |
|---|---|---|---|---|---|
| Manufacturer | Dialight | Dialight | Würth Elektronik | Lite-On Inc. | Lite-On Inc. |
| Color | Blue | Blue | Blue | Blue | Blue |
| Wavelength - Dominant | 473nm | 473nm | 470nm | 470nm | 470nm |
| Voltage - Forward (Vf) (Typ) | 3.2V | 3.2V | 3.2V | 3.3V | 3.3V |
| Current - Test | 20mA | 20mA | 20mA | 20mA | 20mA |
| Millicandela Rating | 140mcd | 140mcd | 145mcd | 104mcd | 104mcd |
| Viewing Angle | 140° | 140° | 140° | 130° | 130° |
| Package / Case | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) |
| Lens Style | Rectangle with Flat Top | Rectangle with Flat Top | Rectangle with Flat Top | Rectangle with Flat Top | Rectangle with Flat Top |
| Lens Size | 1.40mm x 1.25mm | 1.40mm x 1.25mm | 1.40mm x 1.25mm | 1.40mm x 1.25mm | 1.40mm x 1.25mm |
| Size / Dimension | 2.00mm L x 1.25mm W | 2.00mm L x 1.25mm W | 2.00mm L x 1.25mm W | 2.00mm L x 1.25mm W | 2.00mm L x 1.25mm W |
| Height (Max) | 0.80mm | 0.80mm | 0.80mm | 1.10mm | 0.90mm |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) | 2A (4 Weeks) | 2A (4 Weeks) |
Engineering Selection Recommendations
5988191107F (Dialight): Direct manufacturer equivalent with identical electrical and optical specifications. Differs only in packaging format (Tape & Reel vs. Strip). All regulatory certifications and compliance status match the main part. Suitable for direct substitution with no circuit design modifications required.
150080BS75000 (Würth Elektronik): Cross-manufacturer substitute with matching forward voltage (3.2V) and package dimensions. Wavelength dominant specification of 470nm falls within acceptable blue LED range. Millicandela rating of 145mcd exceeds main part specification. All regulatory compliance requirements met. Height and viewing angle specifications are compatible.
LTST-C170TBKT and LTST-C171TBKT (Lite-On Inc.): Cross-manufacturer substitutes with forward voltage of 3.3V (0.1V higher than main part). Both parts meet package and mechanical compatibility requirements. Millicandela rating of 104mcd is lower than main part. Viewing angle of 130° is reduced from 140°. Height specifications differ (1.10mm and 0.90mm respectively vs. 0.80mm main part). Moisture sensitivity level is 2A (4 Weeks) vs. 3 (168 Hours) for main part. All parts maintain ROHS3 compliance and REACH unaffected status.
Frequently Asked Questions (FAQ)
Q: Can 5988191107F replace 5988191102F directly?
A: Yes. Both parts are manufactured by Dialight with identical electrical specifications (3.2V, 20mA, 140mcd, 473nm), optical characteristics, and package dimensions. The only difference is packaging format (Tape & Reel vs. Strip). No circuit modifications are required.
Q: What are the key differences between Dialight and Lite-On substitutes?
A: Dialight 5988191107F maintains exact electrical specifications. Lite-On parts (LTST-C170TBKT, LTST-C171TBKT) have 3.3V forward voltage (0.1V higher), lower millicandela rating (104mcd vs. 140mcd), and reduced viewing angle (130° vs. 140°). Height specifications also differ. These differences may affect circuit performance in brightness-critical applications.
Q: Is the Würth Elektronik 150080BS75000 a suitable substitute?
A: Yes. The 150080BS75000 maintains 3.2V forward voltage matching the main part. Wavelength dominant of 470nm is within acceptable blue LED range. Millicandela rating of 145mcd exceeds main part specification. Package and mechanical compatibility are confirmed. All regulatory compliance requirements are met.
Q: What packaging options are available?
A: The main part 5988191102F is supplied in Strip packaging. The direct equivalent 5988191107F is supplied in Tape & Reel (TR) format. Lite-On substitutes are supplied in Cut Tape (CT) & Digi-Reel® format. Würth Elektronik packaging format is not specified in available data. Packaging selection depends on assembly process requirements and volume considerations.
Q: Are there height constraints I should consider?
A: Yes. The main part and 5988191107F have maximum height of 0.80mm. LTST-C171TBKT has 0.90mm height, and LTST-C170TBKT has 1.10mm height. If PCB clearance is limited to 0.80mm, only the main part and 5988191107F are suitable. The Würth Elektronik part maintains 0.80mm height specification.
Q: Do all substitutes meet the same moisture sensitivity requirements?
A: No. The main part and 5988191107F specify MSL 3 (168 Hours). Lite-On substitutes specify MSL 2A (4 Weeks), which is more stringent. This affects storage and handling procedures. The Würth Elektronik part maintains MSL 3 (168 Hours) specification.
Q: Can I use these substitutes interchangeably in all applications?
A: Substitution suitability depends on application requirements. For brightness-critical applications, the Lite-On parts with lower millicandela rating (104mcd vs. 140mcd) may not be suitable. For applications requiring 140° viewing angle, Lite-On parts with 130° specification may not meet requirements. Dialight 5988191107F and Würth Elektronik 150080BS75000 maintain closer electrical and optical specifications to the main part.
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