F3 Through-Hole LED (3mm Indicator)
F3 Through-Hole LED (3mm Indicator) - Hongcheng Optoelectronics LED Manufacturer
F3 is the industry's common name for 3mm through-hole LEDs. Hongcheng Optoelectronics stocks the complete 3mm range: round head, tall flat top, bullet shape, short head, special shape and bi-color. Industrial-grade copper lead frame and gold wire construction; samples dispatched in 3-4 working days.
Category: Through-Hole LED Series
View specifications and datasheets by exact model
This page introduces the series. Visit the corresponding product page to select the emission color by full model number, check specifications and download the datasheet.
3mm Round-top Single-color → 3mm Bullet Shape → 3mm Round-Head Bi-Color →
F3 is the industry's common name for 3mm through-hole LEDs (F is the round-head diameter code; F3≈3mm encapsulant diameter). Searching for 'F3 LEDs' or '3mm through-hole LEDs' refers to the same product category. Hongcheng Optoelectronics (HC-LED) routinely stocks the 3mm/F3 series, with the most comprehensive coverage of structural shapes and colors.
F3 Through-hole LEDs (3mm Indicators) A through-hole indicator LED with a forward voltage of 1.8~3.4V (depending on emission color) and a 20mA-class drive current. Supplied directly by Dongguan Hongcheng Optoelectronics Co., Ltd. (an international member of Guangyu Group with over 20 years of LED packaging experience), it features Grade A chips and 99.99% pure gold wire bonding, and is RoHS certified. Free samples and customization of lead length, lead forming and tape packaging are available. Download the datasheet PDF on this page for complete electrical specifications and mounting dimensions.
Product Specifications at a Glance
| Product Name | F3 Through-hole LEDs (3mm Indicators) |
|---|---|
| Package: | Through-Hole Package |
| Dimensions | Φ3mm |
| Mounting: | DIP Through-hole |
| Emission Color | Single-Color / Bi-Color Options |
| Environmental Certification | RoHS |
| Manufacturer | Dongguan Hongcheng Optoelectronics Co., Ltd. |
| Customization: | Custom emission color, brightness, wavelength, encapsulant and lead length available |
| Detailed Specifications | See the specifications below on this page for details, or contact customer service for a datasheet |
| 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: Common applications include industrial equipment status indication, instruments, home appliance panels and power indicators.
Structures in the F3 Series
- Round-Top : Standard indicator version, with a moderate viewing angle and the broadest compatibility;
- Tall Flat Top: Wide-angle flood illumination for softer close-range panel indication;
- Bullet-shaped / Short-top: Special appearance and height requirements;
- Special-shaped (Rectangular / Tower-shaped): For specific structural fit requirements;
- Dual-color (Red/Green or Red/Yellow-green): Two states in one LED, frequently used for industrial control panels.
Typical Specification Ranges
| Color | Forward Voltage (Typical) | Wavelength/Color Temperature |
|---|---|---|
| Red / Yellow / Orange | 1.8-2.4V | Corresponding Single-Color Wavelength |
| Green (Standard Green) | 1.8-2.4V | Corresponding Single-Color Wavelength |
| Blue /Emerald Green /White | 2.8-3.4V | Corresponding wavelengths/color temperatures available |
Viewing angle and luminous-intensity bins vary by structure (focused round-top/flooding flat-top). Products are binned to luminous intensity ±10% and wavelength ±1nm before shipment, with no color differences in volume equipment assembly.
Quality and Supply
Hongcheng Optoelectronics' F3/3mm series uses industrial-grade copper lead frames + gold wire construction, with high-temperature resistance, ESD resistance (ESD 2000V) and RoHS lead-free packaging. All colors—red, green, yellow, blue, white and orange—and bi-color versions are regularly in stock. Samples are dispatched in 3-4 working days, with small-batch orders and custom F3 bent leads supported.
Q: Can the lead length of through-hole LEDs be customized?
A: Standard lead length is 23-25mm. Custom lead trimming (minimum 3.5mm) and lead forming are available; tape packaging supports automatic insertion machines.
Forward Voltage and Wavelength Quick Reference by Color
Voltage varies significantly between colors in the same package. Select current-limiting resistors using the values for the specific color:
| Emission Color | Wavelength Range | 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 |
| Standard Green | 565~575nm | 1.8~2.4V | AlGaInP |
| Emerald Green | 520~530nm | 2.8~3.4V | InGaN |
| Blue | 450~470nm | 2.8~3.4V | InGaN |
| White (Neutral White) | Full Spectrum | 3.0~3.4V | InGaN + phosphor |
Ordering and Inquiry Information
Minimum order quantity: 1K (1,000 pcs); sample lead time is generally 3-4 working days, and volume production lead time is generally 10-15 working days (subject to order confirmation). For volume pricing, use the inquiry form on this page or call/message us on WeChat at 139 2571 4318. Specify the exact model and quantity in your inquiry.
Selection Recommendations
Through-hole LED lead polarity is long lead positive and short lead negative. Recommended soldering conditions are within 260℃/3 seconds. Forward voltage varies by color (1.8~3.4V); select the current-limiting resistor for the actual color.
Related Reading: LED Indicator Part Number Comparison Table (Complete 2026 Edition) ｜ Datasheet Download Center
Note: The parameters on this page were compiled against product documentation on 2026-09-17. Items not provided in a datasheet are not assigned uniform values. Refer to the datasheet for the relevant part number.
