If you received actual 3W LEDs and were to run them at 3.5V, 700 mA without a heatsink, then yes, you will sooner-rather-than-later kill them.

You have three options.

  1. Run them at a lower voltage/current.
  2. Heat sink them, perhaps improvised out of some aluminum bar stock and metal epoxy (Home Depot)
  3. Buy star PCB heat sinks and assemble them yourself.

#Assembléia PCB

consulte Mais informação: LED PCB Assembly

OliverSmith

Oliver é um engenheiro eletrônico experiente, especializado em design de PCB, circuitos analógicos, sistemas embarcados, e prototipagem. Seu profundo conhecimento abrange a captura esquemática, codificação de firmware, simulação, disposição, teste, e solução de problemas. Oliver se destaca em levar projetos desde o conceito até a produção em massa usando seus talentos de design elétrico e aptidão mecânica.

Postagens recentes

How to Clean a Circuit Board Safely and Effectively?

It is important to learn how to clean a circuit board properly if you’re working

1 day ago

Counterbore vs Countersink: Which to Choose for Your PCB?

When designing PCBs, selecting the appropriate type of holes for fasteners is crucial. And much

7 days ago

PCB Copper Foil: Tipos, Propriedades & Como escolher

PCB copper foil is one of the most critical materials in the printed circuit board

2 weeks ago

MOKO Technology Launches Vietnam Manufacturing Base in February 2025

Shenzhen, China - fevereiro 11, 2025 - Tecnologia MOKO, a leading global electronics manufacturing service

3 weeks ago

PCB Solder Mask: What It Is and Why Every Circuit Board Needs It?

While most people focus on the components and copper traces that make up PCBs, there's

2 months ago

Aluminum PCB vs FR4 PCB: Key Differences and How to Choose?

The right type of PCB material can make or break the performance of your electronics project.

2 months ago