| Working Current | 20 mA |
| Color | Red |
| Wavelength (±5nm) | 625 nm |
| Beam Angle | 120 ° |
| Luminous Flux | 2 lm |
| Luminous Flux per Chip | 750 mcd |
| Luminous Efficacy | 20 lm/W |
| Dimmable? | Yes |
| Operating Temperature | -22 ~ 176 °F |
| Storage Temperature | -22 ~ 176 °F |
| Lifespan | 50000 h |
| Diameter | 0.19 in |
| Length | 1.37 in |
The straw hat LEDs are similar to the traditional 5mm LEDs but the design of their dome, being a little more rounded, means that they can offer a better light aperture angle: 120 degrees, achieving a homogeneous dispersion of light. They are also called Helmet Cup LED in English.
These 5mm LEDs are encapsulated in a transparent resin dome whose utility is to protect the light emitter, they contain three pieces: reflector cup, semiconductor, and conductive wire. Two legs extend below-said dome: the longest is of positive polarity and is called the anode, the shortest is of negative polarity and is called the cathode. These pins will indicate the way the LED should be connected to the circuit.
These high brightness LEDs due to their highly reflective design with primary optics and their high brightness range (2,000 mcd) reflect bright red light (625mn), making them quite visible. Thanks to their diameter of 5mm, they are compatible with any type of Porta LED of that size.
They have a lower height than the traditional 5mm LED, so they are very useful when it comes to achieving lighting effects in small spaces. Its 120-degree aperture manages to create wider lighting effects, ideal for places where light needs to be scattered. Being narrower than traditional LEDs, they can easily fit into tight spaces.
How do they work?:
LEDs can be used in three different ways:
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Individual: direct LED power from the power supply, either by means of a regulated source or with the use of resistors or regulators. The desired voltage must be supplied to the LED within the working values.
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Parallel configuration: powering a group of LEDs connecting all the anodes together and all the cathodes together, using the required voltage regulated by a single resistor in series.
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Series configuration: powering a group of LEDs connected sequentially. The number of LEDs to be used per series will be limited by the voltage delivered by the power supply. In most cases, a resistor is required to compensate for the differences in supply voltage per LED series, being able to carry out different series in parallel with the same power supply.