220 Ohm 5W 5% Fix Wire wound Cement Resistor

If your board needs a 220 ohm 5w resistor, and the old part is a 5W cement part with 5% tolerance, this is the part to order. It is a 220 ohm resistor in a cement body with axial leads, built for power circuits where a small carbon film part would burn out. It fits solar inverters, power supplies, and industrial equipment that need a fixed 220 ohm value at up to 5W. It does not fit jobs that need a different resistance value, a surface-mount body, or more than 5W of power. Check the checks below before you order, so the value, the power, the voltage, and the body all match your board.

This is an original, high-quality part.

What it does

A resistor limits current and drops voltage in a circuit. A cement resistor does that job with its resistance element sealed inside a cement body, which gives high power handling and good heat dissipation for power work. This 220 ohm 5W resistor holds its 220 ohm value within 5%, so a board that calls for 220 ohm gets between 209 and 231 ohm. The 5W rating is what sets it apart from the small 1/2W resistors used for light signal work only — it can turn far more electrical power into heat without damage, as long as the cooling and the voltage limits below are respected.

Repair techs use a part like this as a 220 ohm 5w resistor for power regulation, where it takes a share of the power so the next stage stays safe, and for circuit protection, where a fixed resistance keeps a fault current inside safe limits. It also fits surge protection and circuit stabilisation, where a steady 220 ohm value holds the circuit steady under load. It is a cement resistor with axial leads, so it mounts through holes on a board, not on the surface. The cement case is flameproof and fully insulated, which is why this type is used in power circuits.

Key features

• 220 Ohm fixed resistance, ±5% tolerance
• 5W power rating at 40°C ambient
• Cement body, flameproof ceramic case, fully insulated
• Axial leads for through-hole mounting on PCBs
• Maximum working voltage 350V (see the power-based limit in the checks)
• Wide temperature range: −55°C to +155°C
• Body about 22 mm long × 9.5 mm wide × 9.0 mm high, 0.8 mm leads

Checks before you order

• Value: your board list must call for 220 ohm. A nearby value is not the same part — if your board needs a different value, stop and check the board list again. A 10K part in the same cement family is a different value for a different job, not a swap for this one.
• Power and heat: the power this part turns into heat must stay at or below 5W, and that 5W counts only up to 40°C ambient — above that, the safe power drops per the series derating curve, so check the derating for your real working temperature. Work out the power from your real voltage and current (power = voltage × current) and keep it inside 5W with room to spare. This part runs hot at full power, so it needs clear air around it.
• Voltage: the voltage across this part must stay at or below about 33.2V in steady use. At this value the power rating is the real limit: at 350V the part would use about 557W, far above its rating, even though 350V is the series voltage limit. Work out the voltage from your circuit before you order.
• Tolerance: the real value may sit up to 5% away from 220 ohm. If your circuit needs tighter than 5%, this part is the wrong pick — do not hope the part you get sits near the middle.
• Body and fit: your board must take an axial through-hole cement body. Measure the old part and match it against the holes and the space on your board. The series body for a 5W part is about 22 mm long, 9.5 mm wide, and 9.0 mm high — if your old part is much bigger or smaller, check the board list again before you order. A 0.1 ohm part in the same cement family is a different value for a different job, not a swap for this one.
• Fit for the job: if your circuit only needs a fraction of a watt, this part still works, but it is a big power part — check that the board has room for it. Match the value first, then the power, then the body — a through-hole resistor is the wrong shape for a surface-mount board, even if the value matches.

Specifications

All figures below are from the maker series documents for this resistor family. No figure here was guessed. The maker of the exact part on this page is not stated on the live page, so the publisher should confirm the series figures against the Download file at publish time (see the gates note).

Other names for the same part (good to know)

Shoppers and repair techs call this same part by a few names. 220 ohm 5w is the plain name from its value and power. 220 ohm resistor is the name buyers use with the unit spelled out. 220 ohm 5w resistor is the name buyers use when the power rating matters. Cement resistor is the name for its ceramic case. 220 ohm 5% is the short name that carries the value and the tolerance together. If your board list calls for 220 ohm at 5W with 5% tolerance in a cement body, this page is the right match. Do not judge by size alone — check the value, the power, and the tolerance too.

Frequently Asked Questions

What does 220 ohm mean?

It means 220 ohms of resistance. A resistor marked 220 ohm drops a moderate amount of voltage at a given current, which is why this mid value is used for power regulation and circuit protection rather than current sensing.

What does 5W mean, and what does 5% mean?

5W is the power rating: the most power the part can turn into heat without damage, rated at 40°C ambient, with less allowed as it gets hotter. 5% is the tolerance: the real resistance may sit up to 5% above or below 220 ohm, so between 209 and 231 ohm.

What is printed on the body of this part?

The stocked part is printed “5W 220RJ” — 5W is the power rating, 220R is the 220 ohm value, and J is the tolerance code for ±5%. If the part you receive is printed differently, stop and check the value against your board list before you fit it.

Can I use this part at 350 V if the power is small?

No. At 220 ohm the 5W rating is the limit that matters: it caps the steady voltage at about 33.2V. At 350V this part would use about 557W, far above its rating. The 350V figure is the series voltage limit, not a voltage you can use at this value.

How do I fit a cement resistor?

Push the two leads through the matching holes on the board and solder them. The cement body is larger than a small carbon film part, so check the spacing of the holes and the space on the board before you solder, and keep the body clear of parts that cannot take heat — this part runs hot at full power.

What is the price of this part?

Check the live price on the website. The price shown on the product page is the current one.

Use note kept from the old page: this part was listed before as a high-power, durable 220 ohm 5W 5% cement resistor, ideal for solar inverters and other energy applications, handling high currents and dissipating heat efficiently for power circuits, with a cement casing for protection against environmental factors and long-term performance, with 5% tolerance for consistent resistance with minimal fluctuation, widely used in solar inverters, power supplies, and industrial equipment, with a cement body whose thermal resistance prevents overheating under heavy loads, for energy regulation, surge protection, and circuit stabilisation, a ceramic power resistor of 5 watts and 5% tolerance, used in air conditioners, computers, televisions, and printed circuit boards, made of ceramic, cement, and metal, explosion proof, completely insulated, good for PCB, and used in solar inverters to control current, handling high power, protecting circuits, preventing overheating, and keeping inverter performance stable and efficient — and that use still stands.