10pcs 56k ohms 5 band 1/4w

🔹 10PCS 56k Ohm (56kΩ) Metal Film Resistor – 1/4 Watt, 5-Band

High-precision, low-noise metal film resistors with a 56,000 ohm value and 1% tolerance. Identified by a 5-band color code, these components are essential for precision voltage dividers, timing circuits, pull-up networks, and feedback applications where stable and accurate high-value resistance is critical.

✅ Specifications:

• Resistance: 56,000 Ohms (56kΩ)

• Tolerance: ±1% (Indicated by Brown 5th band)

• Power Rating: 1/4 Watt (0.25W)

• Type: Metal Film (Precision, Low Noise)

• Band Code: 5-Band

  • 1st Band: Green (5)

  • 2nd Band: Blue (6)

  • 3rd Band: Black (0)

  • 4th Band: Orange (Multiplier x 1000)

  • 5th Band: Brown (±1%)

• Package: Axial Leads

• Lead Spacing: Standard ~10mm (0.4″)

• Temperature Coefficient: Typically ±50 to ±100 ppm/°C

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

• Quantity: 10 pieces

⚙️ Key Features:

• High Precision: 1% tolerance ensures the actual resistance is tightly centered around 56kΩ (range: 55.44kΩ to 56.56kΩ).

• Low Noise: Metal film construction generates significantly less inherent noise than carbon film, making them ideal for sensitive analog and high-gain amplifier stages.

• Excellent Stability: Low temperature coefficient means minimal resistance change with temperature, ensuring consistent performance.

• High-Impedance Design: Suitable for circuits where minimal loading of the signal source is required.

• Clear 5-Band Coding: Allows precise identification of both value and tolerance.

📦 Typical Applications:

• Precision Voltage Dividers: Commonly paired with other values (e.g., 10kΩ, 100kΩ) to create specific voltage ratios for sensor scaling or reference voltages.

• Op-amp Feedback Networks: Setting precise gain or attenuation in inverting/non-inverting amplifier configurations.

• RC Timing Circuits: Creating specific time constants in oscillators, filters, or delay circuits (e.g., with a 1nF capacitor, τ = 56µs).

• Pull-Up Resistors: For open-collector outputs, I2C buses (with 3.3V logic), or high-impedance digital inputs.

• Input Impedance for Sensors: Providing high input impedance for piezoelectric sensors, photodiodes, or other high-impedance sources.

• Audio Attenuation & Tone Control: In audio filter and equalizer circuits.

🔧 Usage & Calculations:

• Ohm’s Law (for Safe Operation):

  • Max Continuous Current: Imax=P/R=0.25/56000≈0.00211A_Imax_​=P/R_​=0.25/56000​≈0.00211_A or 2.11mA.

  • Max Voltage Drop: Vmax=P×R=0.25×56000≈118V_Vmax_​=P_×_R_​=0.25×56000​≈118_V.

• Power Dissipation: Typically very low in high-impedance signal applications. Ensure P=V2/R_P_=_V_2/R remains below 0.25W.

• Voltage Divider Example: A classic voltage divider using a 56kΩ and a 22kΩ resistor with a 5V input yields an output of ~1.41V (5V * 22k / (56k + 22k)).

• High-Voltage Caution: While the max calculated voltage is high, the resistor’s working voltage rating is typically lower (e.g., 250-350V). Do not exceed the manufacturer’s rated voltage.

⚠️ Important Considerations:

• Voltage Rating Limit: For high-voltage applications, the maximum working voltage of the resistor body is the limiting factor, not power dissipation.

• PCB Cleanliness: At high impedances, flux residue, dust, or humidity can create parallel leakage paths, effectively lowering the measured resistance. Clean PCBs thoroughly after soldering.

• Precision Handling: For critical applications, handle with care to avoid contamination and measure before use to verify value.

• Heat Management: While power dissipation is usually low, avoid placing near heat sources to prevent value drift.