Versatile Through-Hole Component for General Electronics Use
The 1k ohm resistor is a standard value used in a wide range of electronic circuits. It is a common choice for current limiting, pullup resistors, and voltage dividers in microcontroller and analog projects. Available in various power ratings and tolerances, the throughhole version is ideal for breadboard prototyping and PCB applications.
Standard Value for General Use - One of the most frequently used resistors in electronics
Wide Availability - Comes in 1/4W, 1/2W, and higher power ratings
The most common version is a 1/4W (0.25 Watt) through-hole resistor with a ±5% tolerance.
For precision circuits, choose a ±1% tolerance metal film resistor.
Color Code and Identification
For a 4-band resistor with ±5% tolerance, the color code is:
- 1st band: Brown (1)
- 2nd band: Black (0)
- 3rd band (Multiplier): Red (×100)
- 4th band (Tolerance): Gold (±5%)
This gives a value of 10 × 100 1000 ohms 1kΩ.
For a ±1% tolerance version, the 4th band is Brown instead of Gold.
Technical Specifications (Typical 1/4W Model)
| Parameter | Value |
|---|
| Resistance | 1,000 Ohms (1kΩ) |
| Tolerance | ±5 (common) or ±1% |
| Power Rating | 1/4W (0.25W) |
| Package Type | Through-Hole (Axial) |
| Lead Diameter | 0.4 - 0.6mm |
= Key Features =
+Universal Component - Used extensively in logic circuits, sensors, and microcontroller projects.
+ThroughHole Package Fits standard breadboards and PCBs.
= Applications =
- Current limiting for LEDs and low-power devices.
- Pullup and pulldown resistors for microcontroller inputs.
- Voltage divider networks for sensor and signal conditioning.
- Series resistors for base/gate drive in transistor switching circuits.
Versatile and Essential - A fundamental component for nearly every electronics project.
Beginner Friendly - Perfect for learning about circuits and prototyping.
√ Available in bulk packs for prototyping.
√ Fits easily into standard breadboards and perfboards.
