25W 30 Ohm Ceramic Cement Resistor - Resistance Tolerance ±5% 30r - 5 Pack

25W 30 Ohm Ceramic Cement Resistor (±5%)

Key Features

• Power Rating: 25 Watts
• Resistance: 30 Ohms
• Tolerance: ±5%
• Body Material: Ceramic
• Construction: Wirewound resistor element housed in a ceramic case for high heat dissipation, shock resistance, and humidity resistance.
• Termination: Axial leads for through-hole mounting.

Replaces / Cross-Reference Part Numbers

• Can replace any ceramic cement resistor with matching electrical specifications (25W, 30Ω, ±5%).
• Suitable as a generic substitute for parts from manufacturers such as Smseace and BlueStars that meet the same power, resistance, and tolerance ratings.

Compatibility & Fitment

• Designed for general purpose use in a wide range of electronic circuits and devices.
• Commonly used in power supplies, audio amplifiers, inverters, and other equipment requiring power dissipation.
• Applications include:
• Computers
• Television sets
• Medical devices
• Automotive electronics
• DIY electronic projects
• Fitment is determined by matching electrical specifications and verifying physical dimensions for circuit board layout.

When to Replace

• Replace if the resistor is tested and found to be open (infinite resistance) or shorted.
• Replace if the measured resistance value is outside the ±5% tolerance range (28.5Ω to 31.5Ω).
• Replace if there are visible signs of physical damage, such as cracks, burns, or severe discoloration, which indicate overheating or component failure.

Installation Tips

• Verify the resistance of the new component with a multimeter before installation.
• Ensure the circuit is powered off and all capacitors are safely discharged before attempting removal or installation.
• Use appropriate soldering and desoldering techniques to avoid damaging the circuit board or the component.
• Mount the resistor with adequate space around it to allow for proper air circulation and heat dissipation. Cement resistors can operate at high temperatures.