3mm Round Through-Hole LED Indicator Lamp, Single Color DIP LED
3mm Round Single Color LED - Hongcheng Optoelectronics LED Manufacturer
Product Overview:
The 3mm round LED, also known as the F3 through-hole LED, features a ~3mm diameter round lens package with compact size, high brightness, focused output, fast response and easy installation. Ideal for instruments, home appliance panels, electronic equipment and industrial control indication; emitting color, brightness, wavelength, lens color, viewing angle and lead length can be customized.
Key Advantages:
- 3mm standard round head package, highly versatile
- Top lens emission with high brightness and excellent visibility
- Through-hole two-pin structure for easy soldering and installation
- Available in red, yellow, green, blue, white, orange and purple
- Clear, diffused and tinted lens options available
- Customizable brightness, wavelength, viewing angle and lead length
Applications:
- Indicator lights for instruments and industrial equipment
- Home appliance panels, key and switch indicators
- Audio equipment, amplifiers and communication devices
- Power supplies, chargers and security products
- Traffic signals and electronic signage
- , gifts and decorative electronic products
Product Features:
Chip: Grade-A chips from leading Taiwan and mainland brands with stable brightness and excellent color consistency; brightness and wavelength binning available.
Gold wire: 99.9% pure gold wire bonding with excellent conductivity and firm, reliable solder joints.
Encapsulant: high-quality epoxy resin with excellent light transmittance and heat resistance; resists yellowing over long-term use.
Lead frame: high-quality metal lead frame with excellent conductivity; custom lead lengths, bending and polarity options available.
Packaging: bulk, bagged or customer-specified packaging with anti-static and moisture protection.
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Hongcheng HC-34LU02W9CMC-AA-L-1 3mm round white
3mm Round Through-Hole LED Indicator Lamp is the classic T-1 DIP LED for compact status indication, manufactured by Dongguan Hongcheng Optoelectronics Co., Ltd. (Guangyu Group, 20+ years in LED packaging). Built with A-grade chips and 99.9% pure gold wire bonding, RoHS certified. Factory-direct supply with free samples and custom binning by color, brightness, wavelength and voltage. Full electrical specifications (forward voltage, luminous intensity, wavelength, dimensions, pad layout, tape-and-reel) are listed in the datasheet PDF on this page.
Quick Specifications
| Product Name | 3mm Round Single Color LED |
| Package Type | Round head |
| Dimensions | 3mm |
| Mounting | See datasheet |
| Emitting Color | Multiple colors available (red/yellow/green/blue/white/orange), customization supported |
| Chip Grade | Grade-A chips |
| Wire Bonding | 99.9% pure gold wire bonding |
| Environmental Certification | RoHS |
| Manufacturer | Dongguan Hongcheng Optoelectronics Co., Ltd. |
| Customization | Customizable color, brightness, wavelength, lens and lead length |
| Detailed Parameters | Full electrical parameters are available in the datasheet PDF on this page |
💡 Typical applications: status indicators on industrial equipment, PLC panel backlighting, instrument key lamps and appliance power indicators. Custom lead length and forming available.
Q: Can the lead length be customized?
A: Standard leads are 23-25mm. Custom cut leads (down to 3.5mm) and formed bends are available, and tape packaging supports auto-insertion machines.
Electrical Parameters & Market Price Reference (Text Version)
The table below lists the core electrical parameters and 2026 market reference prices of the Hongcheng 3mm Round LED (T-1) (3mm round through-hole, single color), in plain text for easy searching and copying:
| Parameter | Value |
|---|---|
| Diameter | Φ3.0mm |
| Power | 0.03~0.06W |
| Forward Voltage | 1.8~3.4V (varies by color) |
| Forward Current | 15~25mA |
| Luminous Intensity | 100~10,000mcd (binned by angle) |
| Viewing Angle | 15°~60° |
| Budget Price | ¥0.01~0.03 /pc |
| Mid-Range Price | ¥0.03~0.06 /pc |
| Premium Price | ¥0.06~0.15 /pc |
| Typical Applications | Indicator lights, toys, small home appliances |
Forward Voltage & Wavelength by Color
Forward voltage differs significantly between colors in the same package—always size the current-limiting resistor for the specific color:
| Emitting Color | Wavelength | Forward Voltage | Chip Material |
|---|---|---|---|
| Red | 620~625nm | 1.8~2.4V | AlGaInP |
| Yellow | 585~595nm | 1.8~2.4V | AlGaInP |
| Orange | 600~610nm | 1.8~2.4V | AlGaInP |
| Yellow-Green | 565~575nm | 1.8~2.4V | AlGaInP |
| Pure Green | 520~530nm | 2.8~3.4V | InGaN |
| Blue | 450~470nm | 2.8~3.4V | InGaN |
| White (Neutral) | Full spectrum | 3.0~3.4V | InGaN + Phosphor |
Selection & Application Guide
The 3mm round lamp (T-1) is the standard indicator for compact devices: the small lamp on toys, small appliances, remote controls and charging docks is almost always an F3. Its Φ3mm body is forgiving on PCB holes and enclosure light pipes, and both manual insertion and wave soldering are easy. For toy applications, pay special attention to flame-retardant epoxy and small-parts safety standards (EN 71 / GB 19865). Hongcheng Optoelectronics uses flame-retardant epoxy on the mid-range and premium F3 tiers and ships RoHS test reports with the goods, so export toy customers can pass inspection directly.
Related reading: LED Indicator Model Cross-Reference Table (2026 Full Edition, with 3-Tier Pricing) | Datasheet Download Center | 5mm Round LED | 5mm RGB LED
Note: prices above (in RMB) were collected in August 2026 and are for reference only; actual prices fluctuate with the market. Please request a quotation for volume orders.
