heaters

Heaters are thermal management components that convert power into controlled heat inside electronic systems. They protect electronics from moisture damage and cold stress. In this category, you'll find heaters and heating elements for control cabinets, racks, and other enclosures.

Online Components stocks this category in U.S.-based warehouses and ships fast. Options include electric heaters, DC 48V rack-mount heaters, fan heaters, and sintered copper heat pipes for efficient heat transfer.

How to Choose the Right Heater

Start by matching the heater's electrical ratings to your system. Confirm whether your design runs on AC mains power or a 48V DC bus, then pick a heater whose voltage, power, and current draw match that supply. From there, estimate your heat requirement based on enclosure size, insulation, and expected ambient lows. A rack-mount heater, a compact heating element, or a fan heater suits different layouts and service routines, so factor in physical space and access.

Popular Applications for Heaters

Engineers, panel builders, and maintenance teams turn to this category when they need reliable thermal control inside cabinets and racks. These products keep control panels, industrial machines, and communications gear running in cold rooms or outdoor enclosures. Industrial automation cabinets and network or server racks that face wide seasonal temperature swings are a natural fit. Roadside and transportation control boxes also benefit from enclosure heaters that prevent ice buildup, condensation, and repeated cold starts.

Why Buy Heaters from Online Components?

Online Components is an authorized distributor with U.S.-based inventory and quick shipping. You get real-time stock availability, detailed specs, and secure online checkout, making it straightforward to match parts to project timelines. These heaters sit within a broader thermal management lineup, which makes it easier to coordinate across system decisions.

Heaters: What You Should Know

What do enclosure heaters do?

Enclosure heaters raise or stabilize the temperature inside cabinets, racks, and other housings. They prevent condensation and corrosion and, by avoiding repeated cold starts, reduce long-term stress on sensitive components.

When should I use a fan heater?

Fan heaters pair a heating element with a fan to circulate warm air inside an enclosure. That evens out the temperature and cuts down on cold spots. A simple heating element works fine when natural convection does the job. Tall racks or tightly packed layouts often require the forced airflow a fan heater provides.

How do I size heater wattage?

Match wattage to your enclosure size, insulation value, and the lowest ambient temperature you expect. Most engineers start with datasheet sizing tables and then run a quick thermal test in a similar cabinet. That two-step process keeps you from picking a heater that's either too small to do the job or wastefully oversized.

When should I choose a DC 48V heater?

Go with a DC 48V heater if your design already runs a 48V bus. It avoids the need for extra AC wiring or conversion hardware. AC heaters connect straight to mains power. Pick whichever style matches your available supply and safety requirements.

What is a heat pipe?

A heat pipe is a sealed copper tube that uses phase change to move heat along its length. In this category, you'll find straight, sintered-copper heat pipes sized for enclosure use. Designers pair them with heaters to pull heat away from hotspots and smooth out temperature differences across the enclosure.