LTST-C191TBKT-5A Lite-On LED (LEDs Chip) In Stock
Lite-On LTST-C191TBKT-5A is a blue SMD LED in a compact 0603 chip package with a 470 nm dominant wavelength, 20 mA forward current, and approximately 3.2 V forward voltage, suitable for status indicators and backlighting in consumer and industrial electronics.
- Manufacturer
- Lite-On
- Package
- LEDs Chip
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- LTST-C191TBKT-5A Datasheet PDF
- Category
- LED
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Blue 470 nm dominant wavelength for vivid status indication and decorative lighting
- Compact 0603 SMD chip package (1.6 mm x 0.8 mm) for high-density PCB layouts
- 20 mA forward current with approximately 3.2 V forward voltage for standard 3.3 V/5 V designs
- Tape-and-reel packaging (5A suffix) for high-volume automated SMT assembly
- Wide viewing angle for broad light distribution on front-panel indicators
Applications
The LTST-C191TBKT-5A is optimized for power and status indicator applications in consumer electronics, networking equipment, and industrial control panels where a space-saving 0603 blue LED is required. Its 470 nm blue emission and 20 mA drive current are suitable for PCB-mounted indicators on routers, switches, IoT gateways, and portable device front panels. The tape-and-reel packaging makes it well-suited for high-volume automated assembly lines in consumer appliance and telecommunications equipment manufacturing.
Specifications
| Factory Lead Time | 16Weeks |
| Package | LEDs Chip |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8541.40.20.00 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LTST-C191TBKT-5A:
suggested
suggested
Frequently Asked Questions
What forward voltage and current does the LTST-C191TBKT-5A require for reliable operation in a 3.3 V system?
The LTST-C191TBKT-5A has a typical forward voltage of approximately 3.2 V at 20 mA forward current. In a 3.3 V system, a current-limiting resistor of around 5 Ω to 10 Ω is needed to limit current to the rated 20 mA, while in a 5 V system a resistor of approximately 90 Ω is appropriate, balancing brightness and LED longevity.
Which PCB assembly format does LTST-C191TBKT-5A ship in, and how does the 5A suffix affect ordering?
The 5A suffix of LTST-C191TBKT-5A indicates tape-and-reel packaging, typically supplied on reels of 3,000 to 5,000 units for automated SMT pick-and-place assembly. This format eliminates manual component handling, enabling placement speeds of 10,000+ components per hour on standard SMT lines, which is critical for high-volume consumer electronics production.
How does the 0603 package size of the LTST-C191TBKT-5A compare to 0805 LEDs for status indicator designs?
The LTST-C191TBKT-5A in the 0603 package occupies a footprint of 1.6 mm x 0.8 mm, compared to 2.0 mm x 1.2 mm for 0805 LEDs, reducing per-indicator PCB area by approximately 33%. This smaller size allows engineers to fit more status indicators per unit area on front panels and PCBs in networking equipment, industrial PLCs, and compact consumer devices without sacrificing visibility at the typical 20 mA drive current.
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