3535 UVC LED Chip (275nm / 280nm): The Compact Engine Behind Modern Sterilization
Sterilization has quietly moved from bulky mercury lamps to compact, mercury-free solid-state light. One model that keeps appearing in new designs is the 3535 UVC LED Chip 275nm / 280nm — a ceramic-base, surface-mount deep-UV LED that packs germicidal energy into a footprint of just 3.45 × 3.45 × 1.3 mm. Below we look at the real-world application scenarios where this chip earns its place, and why overseas buyers increasingly specify it by part number.
Why 275nm and 280nm Matter
UV-C light between 265nm and 285nm sits right at the germicidal peak. It attacks the DNA/RNA of bacteria, viruses and other microorganisms so that they can no longer reproduce. The 3535 UVC LED is engineered to run in that sweet spot, with a typical dominant wavelength of 280nm (range 270–285nm) at 40mA. Compared with low-pressure mercury lamps it is mercury-free, switches on instantly, has a longer service life and lower power draw, and drops neatly into portable or battery-powered products.
7 High-Demand Application Scenarios
- Water purification — point-of-use filters, water dispensers and RO systems use UVC chips to neutralize bacteria and viruses at the tank or faucet outlet.
- Air & HVAC disinfection — installed inside air purifiers, ducts and fresh-air machines to inactivate airborne pathogens in recirculated air.
- Refrigerator & food storage — extends freshness by suppressing mold and bacteria on food surfaces and inside cooling compartments.
- Surface & object sterilization — UV sterilizer boxes for phones, keys, tools and baby bottles.
- Medical & laboratory equipment — instrument trays, biological reagent handling and small sterilizing cabinets.
- Portable & travel sterilizers — battery-powered wands and bottles for travel, camping and outdoor use.
- Home appliance integration — dishwashers, washing machines and humidifiers that add a "UV sterilization" feature.
Key Technical Parameters
| Parameter | Value |
|---|
| Dominant wavelength | 270–285nm (typ. 280nm) |
| Radiant power | 2–5mW @ IF=40mA |
| Forward voltage | 5–8V @ IF=40mA |
| Viewing angle | 120° |
| Package size | 3.45 × 3.45 × 1.3 mm (3535 ceramic base) |
| Operating / storage temp. | −40~+85°C / −40~+100°C |
| Packing | 2000pcs/bag |
The ceramic substrate provides excellent thermal management, keeping output stable and extending operating life — a critical factor for any continuous-duty sterilizing product.
Related Deep-UV Options in the Same Product Line
Designers rarely stop at one chip. Alongside this 3535 UVC LED, the same factory supplies a full deep-UV family: 3535 UVC 270/275/280nm (10–15mW), 2835 UVC/UVA 365–375nm, 3020 UV 365nm for UV printing machines, and 0805 UV 385/405nm for anti-mosquito lamps. That means one qualified supplier can cover water, air, surface and industrial curing projects.
Why Buyers Partner with Dongguan Lanjin Optoelectronics Co., Ltd.
Behind these chips is Dongguan Lanjin Optoelectronics Co., Ltd. (东莞市蓝晋光电有限公司), a professional LED manufacturer established in 2005 with a 2,500 m² anti-static workshop. The company has passed ISO9001:2015, holds 2 national invention patents and 12 utility-model patents, and ships all products to EU RoHS standards. Its guiding idea is simple: "LED lights the world, Lanjin lights your life!"
- 18+ years of LED manufacturing, OEM & ODM one-stop service
- San'an and Epistar chips, alternatives quoted on request
- Free samples (1–50pcs), 5–7 days sample lead time, 2–4 weeks mass production
- Anti-static vacuum inner packing and standard export cartons
Planning a UVC sterilization product? Send our sales team your wavelength, drive current and target application, and we will quote the right chip set plus samples. Ask for the 3535 UVC LED Chip 275nm/280nm and we will respond within one business day.
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