Vishay Semiconductors VLMK31.. is a high-intensity SMD LED with features such as luminous intensity categorization, compatibility with automatic placement equipment, EIA and ICE standard package. It is compatible with IR reflow, vapor phase, and wave solder processes, and available in 8mm tape. It has low power consumption, non-diffused lens, lead-free and RoHS compliant.
The VLMK31.. series is a high‑intensity SMD LED offered by Vishay Semiconductors. It features exceptional brightness, low power consumption, a non‑diffused lens suitable for backlighting, and RoHS‑compliant, lead‑free construction. The device is supplied in 8 mm tape and is compatible with automatic placement equipment and various reflow soldering processes.
The datasheet details electrical and optical characteristics, absolute maximum ratings, package dimensions, and recommended handling and storage procedures. It also includes information on tape‑and‑reel packaging, soldering profiles, and environmental compliance.
| Luminous intensity (IV) | 56 to 224 mcd |
|---|---|
| Forward voltage (VF) | 1.9 – 2.6 V |
| Reverse voltage (VR) | 5 V DC |
| Power dissipation (PV) | 80 mW |
| Junction temperature (Tj) | 125 °C |
| Operating temperature range | -40 to +100 °C |
| Storage temperature range | -40 to +100 °C |
| Thermal resistance (RthJA) | 400 K/W |
| Dominant wavelength (λd) | 630 nm |
| Peak wavelength (λp) | 643 nm |
| Junction capacitance (Cj) | 15 pF |
The reverse voltage rating is 5 V DC.
Store the devices in a dry box at 10 °C to 30 °C with humidity ≤ 60 % RH.
The absolute maximum forward current is 30 mA.
Typical forward voltage is between 1.9 V and 2.6 V.