6.8k Ohm 0.5watt 5% Carbon Film Resistor

Description

Technical Overview of the 6.8k Ohm 0.5watt 5% CFR Resistor

The 6.8k Ohm 0.5watt 5% CFR Resistor is a high-performance passive component widely used for voltage division, signal biasing, and current regulation. With a resistance of 6,800 Ohms, it strikes a perfect balance between high-impedance and drive capability, making it a standard choice for pull-up or pull-down resistors in digital logic. The 0.5W (half-watt) power rating ensures that the resistor can operate comfortably under continuous load without the risk of overheating common in smaller 0.25W alternatives. At BuyCircuitParts, we supply industrial-grade 6.8k Ohm CFRs to keep your automation and analog circuits stable and “on track.”

Key Specifications and Color Code Identification

6.8k Ohm 0.5watt 5% CFR Resistor

To ensure this resistor is the correct match for your circuit, here are its technical parameters:

• Resistance Value: 6.8k ohms (6,800 Ohms).

• Power Rating: 0.5 Watt (1/2 Watt).

• Tolerance: ±5% (Gold band).

• Type: Carbon Film Resistor (CFR).

• Color Code: Blue, Gray, Red, Gold (Blue-Gray-Red-Gold).

• Maximum Working Voltage: 350V.

• Operating Temperature: -55°C to +155°C.

The Benefit of 0.5W Carbon Film Technology

Carbon Film Resistors like the 6.8k Ohm 0.5watt 5% CFR Resistor are manufactured by depositing a thin layer of carbon on a high-grade ceramic core. This construction provides superior pulse stability and a lower noise floor compared to many metal-oxide types in this resistance range. By choosing a 0.5W variant, you gain a significant safety margin; even if your circuit experiences a minor voltage surge, the larger physical size and higher wattage of this component allow it to dissipate heat efficiently. At BuyCircuitParts, our resistors are finished with a moisture-resistant coating to ensure long-term reliability in varying climates.

Common Applications for the 6.8k Ohm Resistor

The 6.8k Ohm 0.5watt 5% CFR Resistor is highly versatile across many electronic platforms:

1. Digital Logic Pull-up/Pull-down: Ensuring clear High/Low states on microcontroller pins to prevent floating inputs.

2. Audio Preamps: Used in gain stages and filtering networks for balanced frequency response.

3. LED Biasing: Limiting current for high-brightness LEDs in 24V or 48V DC systems.

4. Transistor Circuits: Setting the bias point for Bipolar Junction Transistors (BJTs) in switching applications.

5. Signal Conditioning: Acting as part of an RC filter to remove high-frequency noise from sensor data.

Pro-Tips for Circuit Integration

To get the most out of your 6.8k Ohm 0.5watt 5% CFR Resistor, follow these professional tips:

• Heat Dissipation: For 6,800 Ohms at 0.5W, the maximum current is roughly 8.5mA. If your application exceeds 5mA, ensure the resistor is mounted with enough clearance from the PCB to allow for airflow.

• Color Verification: Always check the third band: Blue (6), Gray (8), Red (x100). The Red band is crucial as it differentiates 6.8k from 680 Ohm (Brown) or 68k Ohm (Orange).

• Soldering Best Practices: Use a clean, tinned soldering tip. The 0.5W leads are slightly thicker than 0.25W leads, providing better mechanical stability and heat sinking during the soldering process.

• Tolerance Awareness: While 5% is standard for CFR, always account for this variance in high-precision timing circuits where a 1% Metal Film resistor might be required instead.

Why Buy from BuyCircuitParts?

As a specialized seller, we understand that even a small component can be the “weak link” in a large system. At BuyCircuitParts, our 6.8k Ohm 0.5watt 5% CFR Resistor stock is sourced from manufacturers who prioritize lead strength and film uniformity. We provide components with bright, easy-to-read color bands and oxidation-resistant tinned leads. With our fast shipping and technical expertise, we help you build with confidence and keep your production “on track.”

Durability and Thermal Consistency

The 6.8k Ohm 0.5watt 5% CFR Resistor is built to handle the rigors of industrial environments. Its ceramic core and protective outer coating make it resistant to vibration and thermal shock. Whether you are building an automotive sensor interface or a DIY audio amplifier, this resistor provides the consistent 6.8k Ohm value required for professional results. By choosing your passive components from BuyCircuitParts, you are investing in reliable hardware designed for longevity.

📐 Dimensions (Approx):
Length: 9.2 mm × Diameter: 3.2 mm
Lead Length: ~28 mm (can be trimmed)

🧊 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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