3mm blue LEDs with diffused lens and good brightness.
DESCRIPTION
These are general purpose space saving 3mm blue LEDs with diffused lens and good brightness.
PACKAGE INCLUDES:
- Qty 10 – Blue diffused 3mm LEDs
KEY FEATURES OF LED BLUE 3MM DIFFUSED:
- General purpose LEDs
- Blue color (470nm wavelength nominal)
- Space saving 3mm diameter
- Diffused lens for wide viewing angle
- 20mA max drive current
- Forward voltage drop 3V
These are general purpose 3mm LEDs with diffused lens and good brightness that work well for general indicator use. Being smaller than the normal 5mm LED, they take up less room when space is at a premium.
The shorter of the two leads denotes the cathode. Note that there is a flat surface on both sides of the housing, so you cannot use that as the cathode indication.
For size comparison, a 3mm, 5mm and 10mm LED are shown to the right.
The LEDs are logic compatible with a max drive current of 20mA and a forward voltage drop of approximately 2V.
A current limiting series resistor is needed to protect the LED and/or the device being used to drive it.
At an operating voltage of 5V a series voltage dropping resistor of 100 ohms will provide max brightness. A larger resistor of around 220- 470 ohm can be used to reduce current at a lower brightness.
Calculating LED Resistor Values
Notes:
- None
TECHNICAL SPECIFICATIONS
| Type | Single Color | |
| Color | Blue | |
| Lens | Shape | Circular |
| Dimensions (Dia x H) | 3 x 5.5mm (0.12 x 0.22″) | |
| Appearance | Diffused | |
| Intensity | Standard brightness | |
| Viewing Angle | To Half Brightness | 60 Degrees |
| Maximum Ratings | ||
| IF | Maximum Forward Current | 20mA |
| VF | Maximum Forward Voltage | 2V (Typical) |
| Dominant Wavelength | 470nm (Typical) | |
| Package Type | Plastic body, 2-lead, through hole | |
| Mfr | China |
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