The Original 5mm Blue Diffused LED (Production Quality - Pack of 1000 Pcs) is a commercial-grade through-hole light-emitting diode engineered for high-volume PCB manufacturing, status indication, and decorative backlighting. Encapsulated in a standard T-1 3/4 (5mm) blue-tinted diffused epoxy resin lens, it integrates a high-efficiency InGaN (Indium Gallium Nitride) semiconductor die that emits a vibrant, uniform 460nm–470nm royal blue light across a wide 60° viewing angle without harsh hotspots or glare. Built with high-conductivity pure copper leadframes for optimal heat dissipation and high-integrity gold-wire bonding, these LEDs provide tight electrical tolerances and consistent optical output across the entire 1000-piece production pack. They are widely utilized in industrial control panels, consumer appliances, audio equipment, IoT status indicators, and educational robotics projects.

Specifications

• Product Type: 5mm (T-1 3/4) Blue Diffused Through-Hole LED (Pack of 1000 Pieces)
• Lens Type / Appearance: 5mm Round Blue-Tinted Diffused Epoxy Lens
• Emitted Light Color: Blue
• Dominant Wavelength (λd): 460 nm to 470 nm (Peak Wavelength λp ≈ 465 nm)
• Semiconductor Material: InGaN (Indium Gallium Nitride on Sapphire Substrate)
• Luminous Intensity (Iv): 600 mcd to 1500 mcd (at IF = 20mA, uniform diffused distribution)
• Viewing Angle (2θ1/2): 60° (Wide-angle diffused emission)
• Forward Voltage Drop (VF): Typ. 3.0V / Range 2.8V to 3.4V (at IF = 20mA)
• Continuous Forward Current (IF): 20mA (Nominal) / Max. 30mA (Absolute Maximum)
• Peak Pulse Forward Current (IFP): Up to 100mA (1/10 Duty Cycle, 0.1ms Pulse Width)
• Reverse Breakdown Voltage (VR): Min. 5.0V (at IR = 10µA)
• Reverse Leakage Current (IR): Max. 10µA (at VR = 5V)
• Power Dissipation (Pd): 100mW (at Ta = 25°C)
• Electrostatic Discharge (ESD) Threshold: Up to 2000V (HBM)
• Lead Pitch / Spacing: Standard 2.54mm (0.1-inch)
• Lead Material & Plating: Pure Copper Alloy with Tin/Silver Electroplating for High Solderability
• Polarity Identification: Longer Lead: Anode (+), Shorter Lead & Flat Lens Rim: Cathode (-)
• Operating Temperature Range (Topr): -40°C to +85°C
• Storage Temperature Range (Tstg): -40°C to +100°C
• Lead Soldering Temperature: 260°C for max. 3 to 5 seconds (at 2mm distance from epoxy base)

Features

• Blue Diffused Lens Design: Softens direct illumination into an evenly distributed blue glow across a wide 60° viewing angle, eliminating blinding directional light for front-panel indicators.
• Production-Grade Batch Consistency: Strict binning standards ensure tightly matched forward voltage (VF ~3.0V) and uniform luminous intensity across all 1000 units.
• High-Conductivity Copper Leads: Thick copper alloy leadframes provide efficient thermal conduction away from the semiconductor die, extending operational lifespan.
• High Luminous Efficacy: Advanced InGaN die delivers bright, punchy blue light even at lower drive currents (5mA–10mA) for low-power battery-operated devices.
• Universal 2.54mm DIP Pitch: Standard T-1 3/4 footprint fits seamlessly into solderless breadboards, stripboards, automated PCB insertion equipment, and panel-mount LED holders.

Common Applications

• Industrial Control & Status Panels: Bluetooth/Wireless connectivity indicators, auxiliary power-on monitors, and digital status pilot lights.
• Consumer Electronics & Home Appliances: Standby and operational indicators on audio amplifiers, power banks, computer peripherals, and smart home hubs.
• Microcontroller & Robotics Projects: Debug indicators on Arduino, ESP32, Raspberry Pi, STM32, and CH32V boards.
• Network & Telecom Equipment: Data link, Wi-Fi activity, and interface status lights on routers and modems.
• Signage & Backlighting: Accent lighting, backlighting for diffuser panels, and illuminated switch bezels.

Usage Tips

• Always Use a Current-Limiting Resistor: **Never connect the LED directly across a voltage source without a series current-limiting resistor**, as unconstrained current will destroy the internal LED die immediately.
• Series Resistor Calculation Formula: R_series = (Vsupply - VF) / IF.
  • From a +5.0V Logic Rail (at IF = 15mA, VF = 3.0V): R = (5.0V - 3.0V) / 0.015A = 133Ω (Standard 150Ω or 220Ω, 1/4W resistor recommended).
  • From a +12.0V Supply (at IF = 15mA, VF = 3.0V): R = (12.0V - 3.0V) / 0.015A = 600Ω (Standard 560Ω or 680Ω, 1/4W resistor recommended).
  • From a +24.0V Industrial Rail (at IF = 15mA, VF = 3.0V): R = (24.0V - 3.0V) / 0.015A = 1400Ω (Standard 1.5kΩ, 1/2W power resistor recommended).
• Polarity Identification: Connect the longer lead to the positive rail (Anode +) and the shorter lead to ground or the low-side switch (Cathode -). If leads are already trimmed, the Cathode side is identified by the flat notched edge on the rim of the epoxy base.
• 3.3V Microcontroller Interfacing: Because the blue LED forward drop is ~3.0V, driving directly from a 3.3V GPIO rail leaves only ~0.3V across the series resistor. Use a small 22Ω to 47Ω resistor for direct low-current driving (5mA–8mA), or drive via an NPN transistor (e.g., 2N2222/BC548) connected to a 5V rail for maximum brightness.
• Soldering Recommendations: Keep a minimum clearance of 2mm between the soldering iron tip and the bottom of the epoxy body. Limit soldering contact time to under 3–5 seconds at 260°C to protect the internal gold bonding wire from thermal stress.