10K Ohm 5W 5% Fix Wirewound Cement Resistor

If your board needs a 10k ohm 5w resistor, and the old part is a 5W cement part with 5% tolerance, this is the part to order. It is a 10k ohm resistor in a cement body with axial leads, built for power regulation and circuit protection where a small carbon film part would burn out. It fits solar inverters, power supplies, and industrial control circuits that need a fixed 10K 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 10k ohm 5W resistor holds its 10K value within 5%, so a board that calls for 10K gets between 9.5K and 10.5K ohm. The 10K value is a high value: at low voltages it passes very little current — only about 22 mA even at the full 5W — so it fits dividing and voltage-control work rather than heavy load work, while the 5W rating gives it room for heat. The 5W rating is what sets it apart from the small 1/2W resistors used for light signal work only.

Repair techs use a part like this as a 10k 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 voltage control, where a steady 10K value sets a level without wasting power, and energy management in power electronics. 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

• 10K 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 10K. A nearby value is not the same part — if your board needs a different value, stop and check the board list again. A 220 ohm 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 223.6V in steady use. At this value the power rating is the real limit: at 350V the part would use about 12.25W, above its rating, even though 350V is the series voltage limit. Work out the voltage from your circuit before you order.
• Current: do not order this part for a high-current job. At 10K the current stays small — only about 22 mA even at the full 5W — so a circuit that needs amps through this part needs a much lower value instead. Check the current in your circuit before you order.
• Tolerance: the real value may sit up to 5% away from 10K. 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.

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. 10k ohm 5w is the plain name from its value and power. 10k ohm resistor is the name buyers use with the unit spelled out. 10k ohm 5w resistor is the name buyers use when the power rating matters. Cement resistor is the name for its ceramic case. 10k ohm 5% is the short name that carries the value and the tolerance together. If your board list calls for 10K 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 10K mean?

It means 10,000 ohms of resistance. K stands for kilo, which means one thousand, so 10K is 10 × 1,000 ohms.

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 10K, so between 9.5K and 10.5K ohm.

Is this 10K part for high-current work?

No. At 10K the current stays small — only about 22 mA even at the full 5W. It fits power regulation and voltage control, where the voltage across it is high and the current is low. If your circuit needs amps through the part, you need a much lower value, not this one.

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

At 10K the power rating caps the steady voltage at about 223.6V, so 350V is too much: at 350V this part would use about 12.25W, above its 5W 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 10K ohm 5W 5% cement resistor for efficient energy dissipation in demanding applications like solar inverters, with heat resistance and stability for power regulation and circuit protection, with a cement casing for durability, thermal conductivity, and insulation, built to handle high loads while holding its value with 5% tolerance for reliable performance in power electronics, widely used in solar inverters, power supplies, and industrial control circuits, with a robust design that prevents overheating and enhances longevity, for efficient energy management and voltage control in electronic circuits, with minimal fluctuation in resistance under varying conditions, 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 that use still stands.