INDUSTRY COMPONENT

Decoupling Capacitor

Decoupling capacitor used in operational amplifier circuits to filter power supply noise and ensure stable operation.

View Specifications

Component Specifications

Definition
A decoupling capacitor is an electronic component placed between the power supply and ground pins of an operational amplifier or other integrated circuit to suppress high-frequency noise, prevent voltage fluctuations, and maintain signal integrity by providing a local energy reservoir.
Working Principle
Works by storing electrical charge and releasing it rapidly to counteract transient current demands and filter out high-frequency noise from the power supply, thereby stabilizing the voltage at the operational amplifier's power pins.
Materials
Typically ceramic (e.g., X7R, X5R dielectrics) or tantalum, with electrodes made of nickel, silver, or other conductive metals, encapsulated in a protective coating.
Technical Parameters
  • ESR Low (e.g., <100 mΩ)
  • Package Surface-mount (e.g., 0603, 0805) or through-hole
  • Tolerance ±10% to ±20%
  • Capacitance 0.1 µF to 10 µF
  • Voltage Rating 6.3 V to 50 V
  • Temperature Range -55°C to +125°C
Standards
IEC 60384, MIL-PRF-123

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Decoupling Capacitor.

decoupling capacitor op-amp circuit power supply filtering electronic noise reduction capacitor specifications signal integrity Decoupling Capacitor in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Operational Amplifier Circuit

An electronic circuit that uses operational amplifiers to amplify, filter, or condition analog signals.

View Product Details

Bias Circuit

A circuit that provides a stable DC operating point for active components in a phase shifter.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Incorrect capacitance value leading to inadequate filtering
  • Poor placement increasing parasitic inductance
  • Overvoltage causing dielectric breakdown
FMEA Triads
Trigger: Manufacturing defects or aging
Failure: Open circuit or short circuit
Mitigation: Use capacitors with higher voltage ratings, implement quality control, and perform regular testing.
Trigger: Excessive heat or mechanical stress
Failure: Capacitance drift or physical damage
Mitigation: Ensure proper thermal management and secure mounting in the circuit design.

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Capacitance tolerance within ±10% to ±20% as per design requirements
Test Method
Testing includes capacitance measurement, ESR evaluation, and voltage withstand tests using LCR meters and oscilloscopes.

Buyer Feedback

★★★★☆ 4.5 / 5.0 (36 reviews)

"Found 30+ suppliers for Decoupling Capacitor on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Decoupling Capacitor is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Computer, Electronic and Optical Product Manufacturing environments. No issues with the Decoupling Capacitor so far."

Related Components

Storage Module
Industrial-grade storage module for data logging and firmware in IoT gateways
Ethernet Controller
Industrial Ethernet controller for real-time data transmission in Industrial IoT Gateways.
Serial Interface
Serial interface for industrial data transmission between IoT gateways and legacy equipment using RS-232/422/485 protocols.
I/O Connectors
Industrial I/O connectors are ruggedized interfaces that enable reliable data and power transmission between sensors, actuators, and Industrial IoT Gateways in harsh environments.

Frequently Asked Questions

Why is a decoupling capacitor necessary in an operational amplifier circuit?

It prevents power supply noise from coupling into the signal path, reduces voltage spikes, and ensures the op-amp operates stably, especially at high frequencies.

What happens if a decoupling capacitor fails?

Failure can lead to increased noise, oscillations, or malfunction of the operational amplifier, potentially causing signal distortion or circuit instability.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Get Quote for Decoupling Capacitor

Decoder/Control Logic Decoupling Capacitors