330k Ohm 0.5watt 5% Carbon Film Resistor
₹0.49
High-accuracy 330k ohm carbon film resistor with 1/2 watt power rating, perfect for voltage dividers, filtering, and precision signal control in electronic circuits.
500 in stock
Description
Technical Overview of the 330k Ohm 0.5watt 5% CFR Resistor
The 330k Ohm 0.5watt 5% CFR Resistor is a high-resistance Carbon Film Resistor (CFR) engineered for precision current management and signal attenuation. With a resistance value of 330,000 Ohms, it is a critical component for limiting current to micro-ampere levels, making it indispensable in high-impedance input stages and timing networks. The 0.5W (half-watt) power rating provides double the thermal dissipation capacity of standard 0.25W resistors, ensuring that the component remains cool and stable even in compact, high-density enclosures. At BuyCircuitParts, we supply industrial-grade 330k Ohm resistors to keep your sensor modules and amplifier circuits “on track.”
Key Specifications and Color Code Identification
330k Ohm 0.5watt 5% CFR Resistor
To ensure this resistor aligns with your circuit’s technical requirements, here are the primary parameters:
Resistance Value: 330k $\Omega$ (330,000 Ohms).
Power Rating: 0.5 Watt (1/2 Watt).
Tolerance: ±5% (Gold band).
Type: Carbon Film Resistor (CFR).
Color Code: Orange, Orange, Yellow, Gold (Orange-Orange-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 330k Ohm 0.5watt 5% CFR Resistor are manufactured by depositing a high-purity carbon film onto a ceramic rod substrate. For high resistance values like 330k, CFR technology is preferred because it offers a superior price-to-performance ratio and excellent pulse stability compared to metal film alternatives. The 0.5W rating provides a strategic safety buffer; in 24V or higher voltage systems, it prevents the thermal drift that can occur when smaller resistors are pushed to their limits. At BuyCircuitParts, our resistors feature a flame-retardant coating, protecting your hardware from environmental stressors and oxidation.
Common Applications for the 330k Ohm Resistor
The 330k Ohm 0.5watt 5% CFR Resistor is utilized across various professional electronic designs:
RC Timing Circuits: Paired with electrolytic or film capacitors to create specific time delays in 555-timer and oscillator circuits.
Transistor Biasing: Establishing a stable base-current path for high-gain NPN/PNP transistors in audio pre-amplifiers.
Bleeder Resistors: Safely discharging high-voltage capacitors in small power supply units to prevent electric shock.
Voltage Dividers: Reducing high-voltage signals for sensing by microcontrollers or analog-to-digital converters (ADC).
Audio Gear: Frequently used in the signal path of vintage amplifiers and boutique pedals to set high input impedance.
Pro-Tips for Circuit Integration
To ensure your 330k Ohm 0.5watt 5% CFR Resistor operates reliably for years, follow these professional guidelines:
Current Capacity: At 330k Ohms and 0.5W, the maximum continuous current is approximately 1.2mA. In standard logic and signal circuits, the actual current is usually far lower, ensuring the resistor stays at room temperature.
Color Code Verification: Always verify the bands: Orange (3), Orange (3), Yellow (x10,000). Be careful not to confuse the Yellow multiplier with Orange (33k) or Green (3.3M).
Lead Handling: When preparing for through-hole mounting, use pliers to support the lead near the body. Bending leads directly at the ceramic seal can cause micro-fractures in the carbon film.
Soldering: Our resistors feature high-conductivity tinned leads. A quick solder joint (2-3 seconds) will ensure a secure bond without exposing the internal film to excessive heat.
Why Buy from BuyCircuitParts?
As a specialized seller, we know that low-quality resistors can suffer from “noisy” carbon layers. At BuyCircuitParts, our 330k Ohm 0.5watt 5% CFR Resistor stock is sourced from manufacturers with rigorous quality control. We provide components with clearly etched color bands and oxidation-resistant leads. With our fast shipping and technical focus, we help you avoid out-of-spec components and keep your production “on track.”
Durability and Thermal Performance
The 330k Ohm 0.5watt 5% CFR Resistor is built for longevity. Its ceramic core provides high mechanical strength against vibration, while the protective lacquer ensures the resistance value doesn’t shift due to humidity. Whether you are building a custom laboratory instrument, a solar controller, or a DIY audio project, this resistor delivers the high-impedance stability you need. By choosing BuyCircuitParts, you are building with hardware designed for professional results.
📐 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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