3528 Bi-Color SMD LED
3528 Bi-Color SMD LED - Hongcheng Optoelectronics LED Manufacturer
Product Overview:
3528 is a widely used top-emitting SMD LED with a 3.5×2.8mm package, offering stable brightness, uniform emission, low power consumption and broad applicability.
Key Advantages:
- 3528 standard package offers good compatibility and broad application
- Top emission with uniform light color and good consistency
- Low power consumption and low heat output for prolonged operation
- Supports single-color, bi-color, RGB and other emission configurations
- Brightness, color-temperature, wavelength and voltage binning available
- Suitable for automated SMD production and reflow soldering
Applications:
- Flexible LED strips, rigid light bars and linear lighting
- Advertising signs, illuminated letters and display lighting
- LCD backlighting, button backlighting and light-guide modules
- Home appliance panels, instruments and electronic products
- Vehicle interior lights, ambient lights and indicator light sources
- Decorative lighting, landscape illumination and products
Product Features:
Chips: A-grade chips from leading brands in Taiwan and mainland China provide high brightness, low lumen depreciation, stable output and strong ESD resistance.
Gold wire: 99.99% pure gold wire bonding provides good conductivity and stable, reliable bonds.
Encapsulant: High-quality encapsulant resists sulfurization, high temperatures and lumen depreciation, providing uniform light output.
Lead frame: Gold-plated or silver-plated lead frames are available, with good thermal conductivity, solderability and oxidation resistance.
Packaging: Vacuum moisture-resistant tape packaging, with reel shipment available for automated placement equipment.
Category: 3528 SMD LEDs
Quick Reference: Key Optoelectronic Parameters (by Emission Color)
Test conditions: See the IF column for test current; ambient temperature 25℃. Data is taken from each model's datasheet. “—” indicates that the datasheet does not specify this item. Download the corresponding PDF for complete specifications.
| Emission Color | Part Number | Forward Voltage VF (V) | Wavelength / Color Temperature CCT | Luminous Intensity Iv (mcd) | Viewing Angle 2θ½ (°) | Test Current IF (mA) | Operating Temperature |
|---|---|---|---|---|---|---|---|
| Red | HC-3528T2C-RG-BB-LL-2 | 1.8~2.4 | 620~630 nm | 400~800 | 120 | 20 | -40 ~ +80℃ |
| Pure Green | 2.8~3.4 | 520~525 nm | 1000~1500 | 120 | 20 | -40 ~ +80℃ | |
| Blue | HC-3528TB6C-DZW | 2.8~3.4 | 470~480 nm | 250~450 | 120 | 20 | -40 ~ +80℃ |
| Violet | — | — | — | 120 | 20 | -40 ~ +80℃ | |
| Red | HC-3528T2C-VR-DB-ZWQZ | 1.8~2.4 | 630~650 nm | 200~300 | 120 | 20 | -40 ~ +80℃ |
| Violet | 2.8~3.4 | 410~420 nm | 20~30 | 120 | 20 | -40 ~ +80℃ | |
| Red | HC-3528T2C-RB-AB-LL | 1.8~2.4 | 620~630 nm | 200~300 | 120 | 20 | -40 ~ +80℃ |
| Blue | 2.8~3.4 | 465~470 nm | 200~300 | 120 | 20 | -40 ~ +80℃ |
Note: The cover of the HC-3528TB6C-DZW datasheet identifies it as violet/blue dual-color, but the parameter page lists only one 470~480nm data set and does not separately specify violet-channel parameters. The em dash (—) in the violet row means the datasheet does not provide the value; documentation for that channel must be supplemented.
Related Products
3528 Dual-color SMD LEDs An indicator LED in a 3528 SMD package (3.5×2.8mm), with a forward voltage of 1.8~3.4V (depending on emission color) and a 20mA-class drive current. Supports fully automated placement and reflow soldering. 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 custom brightness binning, color temperature binning and tape packaging are available. Download the datasheet PDF on this page for complete electrical specifications and mounting dimensions.
Q: Can mid-power LEDs such as 2835/3014 be connected directly to 220V?
A: No. These LEDs are low-voltage 2-3.4V devices and require a constant-current driver supply. We can provide driver matching advice and support for complete luminaire solutions.
Q: What placement-machine accuracy does this LED require?
A: This product uses a 3528 package (3.5×2.8mm) with relatively large pads. Standard high-speed placement machines are adequate, with no special equipment accuracy requirements. For its multi-pad structure, stencil apertures must align individually with the pads. Supports lead-free reflow soldering (peak ≤260℃/≤3s).
Product Specifications at a Glance
| Product Name | 3528 Dual-color SMD LEDs |
|---|---|
| Package: | SMD package |
| Dimensions | 3.5×2.8mm |
| Mounting: | SMD surface mounting (suitable for reflow soldering) |
| Emission Color | Bi-color (dual-chip, model-dependent) |
| Environmental Certification | RoHS |
| Packaging Quantity | Tape-and-reel packaging (quantity per reel is specified in the corresponding datasheet) |
| Manufacturer | Dongguan Hongcheng Optoelectronics Co., Ltd. |
| Customization: | Custom colors, brightness and wavelength binning, and encapsulants available; confirm details when requesting a quote |
| Detailed Specifications | See the datasheet PDF on this page for complete electrical parameters |
| Minimum Order Quantity (MOQ) | 1 reel (orders start at one full taped reel; see the corresponding datasheet for quantity per reel) |
| Sample Lead Time | Typically 3-4 working days |
| Volume Production Lead Time | Typically 10-15 working days |
💡 Typical Applications: Common applications include flexible LED strips, rigid light bars and linear lighting, advertising signage, illuminated letters and display lighting, LCD backlighting, button backlighting and light guide modules, home appliance panels, instruments and electronic products.
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
SMD models use tape-and-reel packaging (quantity per reel is subject to the corresponding datasheet), with minimum orders in full reels. Sample lead time is typically 3-4 working days; volume production lead time is typically 10-15 working days (subject to order confirmation). For volume pricing, use the inquiry link on this page or phone/WeChat 139 2571 4318. Specify the exact part number and quantity.
Selection Recommendations
Forward voltage varies considerably by color/model (commonly 1.8~3.4V). Calculate current-limiting resistors using the VF range in the selected model's datasheet, and set the reflow profile according to the corresponding datasheet.
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.
