Generic
1K Ohm 2 Watt Carbon Film Resistor CFR – ±5% Tolerance Through-Hole PTH (Pack of 4)
- Type: Carbon Film Resistor (CFR)
- SKU: CMP-QC0206
- Resistance: 1K Ohm (1000Ω)
- Rated Power: 2W
- Tolerance: ±5%
- Temperature Coefficient: Negative (NTC) – resistance decreases as temperature increases
- Lead Material: Tin-plated Copper
- Mounting Type: Through-Hole (PTH)
- Colour Code: Brown – Black – Red – Gold (1K Ohm ±5%)
- High-Frequency Characteristics: Good
- Long-term Stability: Excellent
- Quantity: Pack of 4 Resistors
- Applications: Current limiting, voltage division, resistance matching, load matching, capacitor matching
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SKU - YTX25262016
₹19.82
₹22.43
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Product Details
1K Ohm 2 Watt Carbon Film Resistor (CFR) – ±5% Tolerance, Through-Hole PTH (Pack of 4)
This is a pack of 4 × Carbon Film Resistors (CFR), each rated at 1K Ohm (1000Ω) with a 2W power rating and ±5% tolerance. Carbon Film Resistors are manufactured by depositing a thin layer of pure carbon on a ceramic substrate, providing a high negative temperature coefficient (NTC) — meaning resistance decreases as temperature increases. These resistors offer excellent long-term stability, good high-frequency characteristics, and reliable performance across a wide range of general-purpose electronic applications.
The tin-plated copper leads ensure excellent solderability on PCBs and stable contact in breadboard prototyping. Their through-hole (PTH) form factor makes them compatible with standard PCB layouts, perfboards, and all sizes of breadboards.
Key Features
- Resistance: 1K Ohm (1000Ω)
- Rated Power: 2W — suitable for higher current applications vs standard ¼W resistors
- Tolerance: ±5% — high accuracy for general-purpose circuits
- Type: Carbon Film (CFR) — pure carbon on ceramic substrate
- Temperature Coefficient: Negative (NTC) — resistance decreases with rising temperature
- Lead Material: Tin-plated copper — excellent solderability and oxidation resistance
- Mounting: Through-Hole (PTH) — breadboard and PCB compatible
- High-Frequency Performance: Good — suitable for signal and RF circuits
- Long-Term Stability: Excellent — consistent performance over time
- Quantity: Pack of 4 resistors
Technical Specifications
| Parameter | Specification |
|---|---|
| SKU | CMP-QC0206 |
| Resistor Type | Carbon Film (CFR) |
| Resistance Value | 1K Ohm (1000Ω) |
| Rated Power | 2W |
| Tolerance | ±5% |
| Temperature Coefficient | Negative (NTC) |
| Lead Material | Tin-plated Copper |
| Mounting Type | Through-Hole (PTH) |
| Colour Code | Brown – Black – Red – Gold |
| High-Frequency Characteristics | Good |
| Long-Term Stability | Excellent |
| Operating Temperature | -55°C to +155°C (typical CFR) |
| Quantity per Pack | 4 Resistors |
Colour Code Reference
| Band | Color | Value |
|---|---|---|
| Band 1 (1st Digit) | Brown | 1 |
| Band 2 (2nd Digit) | Black | 0 |
| Band 3 (Multiplier) | Red | ×100 |
| Band 4 (Tolerance) | Gold | ±5% |
| Result | 1000Ω = 1K Ohm ±5% | |
Power Rating Comparison
| Power Rating | Max Current @ 1KΩ | Use Case |
|---|---|---|
| ¼W (0.25W) | 15.8 mA | Signal circuits, logic level |
| ½W (0.5W) | 22.4 mA | General purpose |
| 2W (This Product) | 44.7 mA | Higher current circuits, motor control, power circuits |
Applications
- Current Limiting: Protecting LEDs, transistors, MOSFETs, and ICs from excess current
- Voltage Division: Voltage divider networks for ADC inputs and logic level shifting
- Pull-up / Pull-down: GPIO pin biasing for buttons, switches, and open-collector outputs
- Resistance Matching: Impedance matching in signal and RF circuits
- Load Matching: Dummy load resistor for power supply and amplifier testing
- Capacitor Matching: RC timing circuits for timers, oscillators, and filters
- Base Resistor: NPN/PNP transistor base drive resistor (BC547, 2N2222, etc.)
- Motor Driver Circuits: Current sense and protection resistors
- Arduino / ESP32 Projects: General-purpose circuit prototyping on breadboards and PCBs
Important Usage Notes
- The 2W rating means this resistor can safely dissipate up to 2 watts — always keep actual power dissipation below rated value for reliability.
- Power Dissipation Formula: P = V² / R = I² × R. For 1KΩ at 2W: max safe voltage = √(2 × 1000) = ~44.7V, max safe current = √(2 / 1000) = ~44.7mA.
- Carbon film resistors have a negative temperature coefficient (NTC) — resistance slightly decreases at higher temperatures. For precision applications, use metal film resistors (±1% tolerance) instead.
- Store in a cool, dry environment — avoid humidity and direct heat exposure.
Additional Resources
- Resistor Colour Code Guide
- Ohm's Law Calculator
- Resistor in Series Calculator
- Resistor in Parallel Calculator
Package Contents
- 4 × 1K Ohm 2 Watt Carbon Film Resistors (CFR, ±5%, Through-Hole)
