120KΩ 1/4W resistor

A 120KΩ (120,000 ohms) 1/4 watt resistor is a fixed-value resistor designed to provide a resistance of 120,000 ohms with a power dissipation capacity of up to 0.25 watts. It is widely used in electronic circuits for various functions such as setting bias levels, voltage division, and current limiting.

Key Features:

• Resistance: 120KΩ
• Power Rating: 1/4W (0.25 watts)
• Tolerance: ±5% (commonly), with ±1% available for precision types
• Temperature Coefficient: Typically ±100ppm/°C or ±200ppm/°C for general-purpose resistors

Technical Specifications:

• Resistance: 120KΩ
• Power Rating: 1/4W (0.25 watts)
• Tolerance: ±5% (J), ±1% (F), depending on the specific resistor type
• Temperature Coefficient: ±100ppm/°C or ±200ppm/°C
• Operating Temperature Range: -55°C to +155°C
• Body Size: Typically through-hole with axial leads (1/4W size)
• Material: Carbon film, metal film, or metal oxide, depending on the type

Applications:

• Current Limiting: Controls the current flow to protect circuit components.
• Voltage Division: Used in voltage dividers to create specific voltage levels.
• Biasing: Sets the operating points for transistors and other semiconductor devices.
• Signal Conditioning: Adjusts signal levels or impedance in electronic circuits.

Usage:

1. Placement: Insert the resistor into the appropriate positions on the circuit board.
2. Insertion: Feed the resistor leads through the designated holes or slots.
3. Soldering: Solder the leads to the circuit board and trim any excess.
4. Verification: Use a multimeter to check the resistance value and ensure proper installation.

Caution:

• Power Dissipation: Ensure the resistor does not exceed its 0.25-watt power rating to avoid overheating.
• Voltage Rating: Confirm that the resistor’s voltage rating meets the requirements of your circuit.
• Handling: Handle the resistor with care to prevent physical damage.