470k Ohm 0.5watt 5% Carbon Film Resistor
₹0.49
Dependable 470k ohm carbon film resistor rated at 1/2 watt with ±5% tolerance, suitable for voltage divider circuits, filtering, and other general electronic applications.
500 in stock
Description
Technical Overview of the 470k Ohm 0.5watt 5% CFR Resistor
The 470k Ohm 0.5watt 5% CFR Resistor is a high-resistance Carbon Film Resistor (CFR) designed for precision timing, high-impedance biasing, and signal attenuation. With a resistance value of 470,000 Ohms, it is an essential component for limiting current to extremely low levels, making it a staple in analog oscillator circuits and power supply feedback stages. The 0.5W (half-watt) power rating offers a superior thermal safety margin compared to standard 0.25W resistors, ensuring stability in compact electronic assemblies. At BuyCircuitParts, we supply industrial-grade 470k Ohm resistors to keep your sensor interfaces and audio circuits “on track.”
Key Specifications and Color Code Identification
470k Ohm 0.5watt 5% CFR Resistor
To ensure this resistor matches your design specifications, here are the technical parameters:
Resistance Value: 470k $\Omega$ (470,000 Ohms).
Power Rating: 0.5 Watt (1/2 Watt).
Tolerance: ±5% (Gold band).
Type: Carbon Film Resistor (CFR).
Color Code: Yellow, Violet, Yellow, Gold (Yellow-Violet-Yellow-Gold).
Maximum Working Voltage: 350V.
Operating Temperature: -55°C to +155°C.
Why Choose 0.5W Carbon Film for High-Resistance?
Carbon Film Resistors like the 470k Ohm 0.5watt 5% CFR Resistor are built by depositing a high-purity carbon film onto a ceramic substrate. This construction provides excellent long-term stability and pulse endurance. In high-resistance applications, such as 470k, the physical size and 0.5W rating of the resistor help minimize “voltage coefficient” effects, where the resistance might otherwise change slightly under high-voltage stress. At BuyCircuitParts, our resistors are treated with an specialized outer coating to prevent resistance drift caused by humidity and environmental pollutants.
Common Applications for the 470k Ohm Resistor
The 470k Ohm 0.5watt 5% CFR Resistor is a versatile part used in many professional electronics:
RC Timing Circuits: Creating long time delays in 555-timer-based oscillation and pulse-generation circuits.
Transistor Biasing: Setting the base current for high-gain transistors in audio pre-amplifiers.
High-Voltage Bleeder: Safely discharging energy from small capacitors in switch-mode power supplies (SMPS).
Voltage Sensing: Forming high-impedance voltage dividers for microcontroller ADC inputs to monitor high-voltage rails.
Audio Gear: Used in the input stages of tube amplifiers and boutique guitar pedals to set high input impedance.
Pro-Tips for Circuit Integration
To ensure your 470k Ohm 0.5watt 5% CFR Resistor provides the best performance, follow these professional tips:
Voltage Awareness: At 470k Ohms, the current is naturally very low, but the voltage across the resistor can be high. Ensure you stay within the 350V limit to prevent internal arcing.
Color Code Verification: Always check the bands: Yellow (4), Violet (7), Yellow (x10,000). Ensure you don’t confuse it with the Orange multiplier (47k) or Green multiplier (4.7M).
Clean Soldering: High-resistance circuits are sensitive to “leakage currents.” Ensure your PCB is clean of flux residue after soldering to prevent parasitic parallel resistance from affecting the 470k value.
Mechanical Strain: Use needle-nose pliers to bend the leads while providing support to the body. Stress on the ceramic core can cause micro-fractures in the carbon film, leading to premature failure.
Why Buy from BuyCircuitParts?
As a specialized seller, we know that inconsistent carbon film thickness can lead to noise in high-impedance audio circuits. At BuyCircuitParts, our 470k Ohm 0.5watt 5% CFR Resistor stock is selected from top-tier manufacturers. We provide resistors with clearly defined color bands and tinned leads for rapid, high-quality soldering. Our commitment to sourcing reliable passives helps you avoid debugging headaches and keeps your production “on track.”
Durability and Thermal Performance
The 470k Ohm 0.5watt 5% CFR Resistor is designed to last. Its flame-retardant coating and ceramic core provide excellent resistance to vibration and thermal shock. Whether you are building a laboratory instrument, a vintage audio repair project, or an industrial timer, this resistor provides the steady high-impedance performance required for professional results. By choosing BuyCircuitParts, you are ensuring your project is built with dependable hardware.
📐 Dimensions (Approx):
Length: 9.2 mm × Diameter: 3.2 mm
Lead Length: ~28 mm (adjustable)
🧊 Note:
Product colour and markings may vary slightly based on manufacturer and batch. Functionality is guaranteed. (Refer to the product image for illustration only. For precise specifications, consult the datasheet.) For a detailed breakdown of resistor technology and standards, visit the Resistor Technology Wikipedia Page.
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Additional information
| Weight | 5 g |
|---|---|
| Dimensions | 9 × 0.2 × 0.2 cm |
| HSN | 85331000 |
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