LED 5 mm Straw Hat—Day Light

The 5 mm Straw Hat Day Light LED is a through-hole light-emitting diode engineered for a wide viewing angle (≈120–140°) and uniform light distribution. Ideal for signage, backlighting, indicators, and DIY projects with Arduino, Raspberry Pi, and other microcontroller platforms, this component delivers efficient, reliable illumination with low heat output.

🤔 What Is a Straw Hat LED?

A Straw Hat LED takes its name from its distinctive package: a wider, flattened top with a flat bottom. This geometry spreads light broadly for enhanced visibility. Unlike typical round 5 mm LEDs that offer about 20–60° viewing angle, Straw Hat variants provide approximately 120–140°, making them excellent for applications needing broad, even coverage.

📐 Light Distribution

The engineered lens profile ensures even, uniform illumination over a large area with minimal hot spots or dark zones—perfect for signage, display backlighting, and status indicators where consistent brightness is critical.

✅ Features and Advantages

• Wide Viewing Angle (≈120–140°) for superior off-axis visibility in signs, displays, and general lighting.
• Uniform Light Output minimizes dark spots for consistent, professional results.
• Energy Efficient LED technology draws less power than incandescent or fluorescent alternatives.
• Durable, Long-Life solid-state design for reliable operation over extended periods.
• Low Heat Emission for safer use in compact or temperature-sensitive assemblies.
• 5 mm through-hole package for easy integration on PCBs, breadboards, and prototyping modules.

🚀Application Areas

• Signage and Displays: Wide-angle visibility and uniform brightness.
• Backlighting: Lightboxes, advertising panels, and LCD backlights.
• Decorative Lighting: Architectural accents, holiday lighting, and project illumination.
• Indicators and Status Lights: Control panels, instruments, and consumer electronics.
• Automotive (Interior/Exterior): Where broad, diffuse illumination is preferred.

🔧 Usage and Installation

This LED has two leads: anode (+) and cathode (−). Observe polarity and always use a current-limiting resistor in series to control LED current and protect the device.

• Series Resistor Selection: Use R = (Vsupply − VF) / ILED. Check the LED’s datasheet for exact forward voltage (VF) and recommended current. As a typical example for Day Light LEDs, you might assume VF ≈ 3.0 V.
• Example (Arduino 5 V): For ILED = 20 mA and VF ≈ 3.0 V, R ≈ (5 − 3.0) / 0.02 = 100 Ω. Choose the nearest standard value and verify brightness/thermal limits.
• Resistor Power: P = ILED2 × R. In the example above, P ≈ 0.04 W → a 1/4 W resistor provides ample margin.
• Integration: Compatible with Arduino, Raspberry Pi (via GPIO and resistor), and other microcontroller boards and electronics modules. Suitable for breadboards and through-hole PCB assembly.

📎 Summary

• Type: 5 mm Straw Hat LED (Day Light)
• Viewing Angle: Approximately 120–140°
• Key Benefits: Wide-angle, uniform light, energy-efficient, low heat, long life
• Use With: Arduino, Raspberry Pi, microcontrollers, electronics components and modules
• Typical Uses: Signage, backlighting, indicators, decorative and automotive lighting

Whether you’re an electronics engineer optimizing a lighting module or a maker building a DIY project, this wide-angle 5 mm Straw Hat LED delivers consistent, efficient illumination for professional results.