5.5mm Bullet-Head Through-Hole LED
5.5mm Bullet-Head Through-Hole LED - Hongcheng Optoelectronics LED Manufacturer
Product Overview:
The 5.5mm bullet-head through-hole LED uses a 5.5mm bullet-shaped lens package and a two-lead through-hole structure. It has a slender outline, a clearly defined emitting area, relatively concentrated light and convenient mounting and soldering. Applications include electronic equipment indication, instrumentation, appliance panels, toys and decorative lighting. Emission color, brightness, wavelength, lens color and lead length can be customized to customer requirements.
Key Advantages:
- 5.5mm bullet-head lens package with a clearly defined outline
- Bullet-head optical structure for concentrated, clearly visible light
- Two-lead through-hole design for easy installation and soldering
- Available in red, yellow, green, blue, white and orange
- Clear, diffused and colored lenses available
- Custom brightness, wavelength, voltage and lead length available
Applications:
- Indicators for instruments, meters and industrial equipment
- Appliance panel, control panel and switch indicators
- Electronic toys, models and decorative lighting
- Audio equipment, amplifiers and electronic products
- Communications equipment, security equipment and status indicators
Product Features:
Chip: Grade A chips from leading brands in Taiwan and mainland China provide stable brightness, good color consistency and strong ESD resistance.
Gold wire: 99.99% pure gold wire bonding provides good electrical conductivity and strong, reliable bonds.
Encapsulant: High-quality environmentally friendly resin with clear, diffused or colored lens options offers good heat resistance and resists yellowing.
Lead frame: High-quality metal lead frame with good electrical conductivity; custom lead lengths and forming options available.
Packaging: bulk, bagged and customer-specified packaging are available, with ESD and moisture protection.
Category: Through-Hole LED Series
Quick Reference: Key Optoelectronic Parameters (by Emission Color)
Test conditions: forward current IF=20mA, ambient temperature 25℃. Data are taken from each model's datasheet. “—” indicates that the item is not specified; download the corresponding PDF for complete specifications.
| Emission Color | Part Number | Forward Voltage VF (V) | Wavelength λ / Color Temperature CCT | Luminous Intensity Iv (mcd) | Viewing Angle 2θ½ (°) | Test Current IF (mA) | Operating Temperature |
|---|---|---|---|---|---|---|---|
| Blue | HC-54U09B33CMC-AA-LX | 2.6~3.2 | 460~470 nm | 2000~5000 | 20 | 20 | -20~+80℃ |
| Red | HC-54U09R25CJC-AB-LX | 1.8~2.4 | 620~630 nm | 4000~8000 | 20 | 20 | -20~+80℃ |
| Yellow | HC-54U09Y44CJC-AB-LX | 1.8~2.4 | 590~595 nm | 3000~6000 | 20 | 20 | -20~+80℃ |
| Emerald Green | HC-54U09G413CMC-AA-LX | 2.6~3.2 | 515~525 nm | 10000~30000 | 20 | 20 | -20~+80℃ |
| White | HC-54U09W113CMC-AA-QZX | 2.6~3.2 | 8000~13500 K | 10000~30000 | 20 | 20 | -20~+80℃ |
Parameter sources: page 3 of the datasheet for each model. Test conditions are IF=20mA and ambient temperature 25°C. Voltage, wavelength/color temperature and luminous intensity are listed as minimum–maximum values. The 20° viewing angle is the value in the Avg column. The temperature field in each datasheet is labeled “Experiment temperature range” (-20–+80°C), not explicitly operating temperature, so the operating-temperature column is temporarily shown as “—”. Refer to manufacturer-confirmed documentation.

The image above is a series reference image containing other colors and general specifications; it does not represent the specific models on this page. Values such as the 120° viewing angle in the image differ from the datasheets for the 5 models on this page. Use the corresponding PDF for product selection. All 5 models list a viewing angle of 20° (Avg, IF=20mA).
This page presents 5×5.5mm bullet-head through-hole LEDs with a flanged clear lens and a two-lead structure, suitable for panel status indication, instrumentation and electronic product light displays. Blue, red, yellow, emerald-green and white emissions each correspond to separate models. When selecting a model, check its color, brightness, forward voltage and dimensional drawing together.
Q: What should I consider for installation and soldering?
A: Confirm PCB hole spacing, lead orientation and mounting height using the dimensional drawing for the corresponding model. Use current-limiting or constant-current drive, and follow the datasheet for soldering temperature and time. Do not substitute a series name for checking dimensions and specifications.
Product Specifications at a Glance
| Product Name | 5×5.5mm bullet-head through-hole LED |
|---|---|
| Package: | Through-Hole Package |
| Dimensions | 5×5.5mm series |
| Mounting: | DIP through-hole mounting |
| Emission Color | Single colors available (red, yellow, green, blue, white, etc.) |
| Environmental Documentation | RoHS |
| Manufacturer | Dongguan Hongcheng Optoelectronics Co., Ltd. |
| Customization: | Custom emission color, brightness, wavelength, encapsulant and lead length available |
| Detailed Specifications | See the datasheet PDF on this page for complete electrical parameters |
| Minimum Order Quantity (MOQ) | 1K(1,000 pcs) |
| Sample Lead Time | Typically 3-4 working days |
| Volume Production Lead Time | Typically 10-15 working days |
Typical Applications: Equipment operating-status indication, instrumentation, appliance and control panels, toys and decorative lighting. Validate viewing distance, brightness and emission angle against the application and samples.
Forward Voltage and Wavelength Quick Reference by Color
Different emission colors in the same package have different forward voltages. Select the current-limiting resistor using the values for the chosen color and corresponding model:
| Emission Color | Wavelength Range | Forward Voltage | Chip Material |
|---|---|---|---|
| Red | 620~630 nm | 1.8~2.4 V | GaASP/GaP |
| Yellow | 590~595 nm | 1.8~2.4 V | GaASP/GaP |
| Emerald Green | 515~525 nm | 2.6~3.2 V | InGaN/GaN |
| Blue | 460~470 nm | 2.6~3.2 V | InGaN/GaN |
| White | 8000–13500 K (color temperature) | 2.6~3.2 V | InGaN/GaN |
The data and chip materials are listed on page 3 of the datasheets for the 5 models on this page. Test conditions are IF=20mA and ambient temperature 25°C. White emission is specified by color temperature. See the main specification table on this page and the corresponding PDFs for complete part numbers and other optical and electrical parameters.
Ordering and Inquiry Information
Select the required complete part numbers and provide quantity, application and sample requirements. Standard packaging in the datasheet is 500 pcs/bag. Minimum order quantity, lead time, special binning and packaging are subject to the actual quotation and order confirmation. Select the models on this page and click “Request a Quote”.
Selection Recommendations
Red and yellow LEDs have different forward-voltage ranges from blue, emerald-green and white LEDs; match the drive and current-limiting conditions separately. The 20mA value is the table’s test condition. Determine actual operating current based on brightness, thermal management and datasheet limits. The white model has a color temperature of 8000–13500K; confirm the corresponding model separately if another color temperature is required.

