2121 Addressable RGB LED, Built-in IC Digital Color SMD LED (WS2812/SK6812 Style)

2121 Digital Color LED - Hongcheng Optoelectronics LED Manufacturer

Product Overview:

The 2121 is a small top-emitting SMD LED in a 2.1×2.1mm package, featuring compact size, high brightness, excellent color consistency and fast response. Single color and RGB full color options available; ideal for LED displays, pixel modules, smart lighting and electronic equipment indication.

Key Advantages:

  • 2121 small package, ideal for high-density arrays
  • Front emission with uniform brightness and consistent color
  • Independent RGB three-color control with natural color mixing
  • Fast response, suitable for dynamic displays
  • Brightness, wavelength, voltage and color binning available
  • Compatible with automated SMT production and reflow soldering

Applications:

  • Indoor LED displays and fine-pitch display modules
  • RGB full color pixel screens and dot matrix displays
  • Advertising screens, information displays and stage display equipment
  • Smart lighting, ambient lights and decorative lighting
  • Home appliance panels, instruments and status indication
  • Electronic toys, digital products and smart devices

Product Features:

Chip: Grade-A chips from leading Taiwan and mainland brands with high brightness, excellent color consistency, stable output and strong ESD resistance.

Gold wire: 99.9% pure gold wire bonding with good conductivity; stable and reliable multi-chip connections.

Encapsulant: high-quality epoxy with anti-sulfurization, high temperature resistance and low light decay for improved contrast and output consistency.

Lead frame: precision high thermal conductivity frame, easy tinning, stable soldering and oxidation resistance.

Packaging: vacuum moisture-proof tape packaging, reel shipping available, compatible with high-speed automated SMT equipment.
      Hongcheng HCIC4X-B2121RGB10WGG 2121 digital color, four-pin

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Quick Specifications

Product Name2121 Digital Color LED
Package TypeStandard package
Dimensions2121 package (2.1×2.1mm)
MountingSMD
Emitting ColorBuilt-in IC programmable digital color
Chip GradeGrade-A chips
Wire Bonding99.9% pure gold wire bonding
Environmental CertificationRoHS
ManufacturerDongguan Hongcheng Optoelectronics Co., Ltd.
CustomizationCustomizable color, brightness, wavelength, lens and lead length
Detailed ParametersFull electrical parameters are available in the datasheet PDF on this page
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Frequently Asked Questions (FAQ)

1. Can I get free LED samples from Hongcheng Optoelectronics?

Yes. Dongguan Hongcheng Optoelectronics Co., Ltd. supports sample testing — you can verify electro-optical parameters, dimensions and soldering compatibility before placing bulk orders. To request samples, call +86 139 2571 4318 (WeChat same number) or email sales@led-hc.com with the model and quantity you need.

2. What is the minimum order quantity (MOQ)?

The MOQ for DIP (through-hole) LEDs is 1K (1,000 pcs); for SMD LEDs the MOQ is 3-5K, shipped in tape-and-reel packaging. The MOQ for customized models (special wavelength, brightness or voltage binning) is confirmed per custom solution. Please contact sales for an accurate quotation and MOQ for your model.

3. What are the lead times for samples and mass production?

Sample lead time is typically 3-4 working days; in-stock samples are usually shipped within 2 working days. Mass production lead time is typically 10-15 working days, confirmed according to order quantity and production schedule — please contact sales for an accurate lead time.

4. Are the products RoHS certified?

Yes. All Hongcheng LED diodes are RoHS and CE certified, made with A-grade chips, 99.9% pure gold wire bonding and high-temperature resistant encapsulant — anti-sulfuration and low light decay, meeting the environmental and reliability requirements of home appliance, automotive and industrial equipment applications.

5. Can voltage, wavelength, brightness or color be customized?

Yes. We support binning and customization of brightness, wavelength, voltage and color, and provide OEM services. Our product range covers 0201-5730 SMD LEDs, addressable RGB LEDs with built-in IC, side-emitting LEDs, and 2mm-10mm DIP LEDs, packed in vacuum moisture-proof tape and reel, suitable for automated SMT mounting and reflow soldering.

6. How do I get the product datasheet?

Every model has an official PDF datasheet (electro-optical parameters, dimensions, pad design, tape packaging and reliability test data) — 259 datasheets in total, all free to download with no login required. Browse the datasheet center (https://www.hc-led168.com/datasheets) by series, or download directly from each product page.

7. Is Hongcheng Optoelectronics a factory or a trading company?

Hongcheng Optoelectronics is a member of Guangyu Group — a professional LED diode source manufacturer based in Dongguan, Guangdong, China, with 20+ years of LED packaging experience. Factory-direct sales; over 50% of raw materials are imported from South Korea, Japan and Taiwan, China. Quality and lead time are controlled directly by the factory.