GRM155R71H104KE14D Murata Manufacturing | Specification, Inventory, Distributors and Datasheet

The Murata Manufacturing GRM155R71H104KE14D is a multilayer ceramic capacitor (MLCC) designed for high-reliability surface-mount applications in compact electronic devices. Part of the GRM series, this component is engineered for stable capacitance, low equivalent series resistance (ESR), and high-voltage tolerance in a miniature 0402 package (1.0 mm × 0.5 mm). It is suitable for decoupling, filtering, and general-purpose AC/DC energy storage in portable electronics, telecommunications, automotive, and industrial applications.

## Electrical Characteristics

* Capacitance (C): 100 nF (0.1 μF), providing sufficient charge storage for bypassing or decoupling applications.
* Capacitance Tolerance: ±10% (K), ensuring predictable performance in precision circuits.
* Rated Voltage (Vr): 50 V DC, allowing operation in low- to medium-voltage circuits with adequate derating for transient voltages.
* Dielectric Type: X7R, providing stable capacitance across a wide temperature range and moderate voltage dependence.
* Temperature Coefficient: ±15% over -55°C to +125°C, maintaining functionality in automotive and industrial thermal conditions.
* Dissipation Factor (DF): Maximum 2.5% at 1 kHz, low enough for energy storage and filtering without significant losses.
* Insulation Resistance (IR): Minimum 10,000 MΩ at 25°C, ensuring minimal leakage current and reliable charge retention.

## Physical and Mechanical Specifications

* Package Type: 0402 (metric 1005) surface-mount package, suitable for high-density PCB layouts in space-constrained designs.
* Dimensions: Length 1.0 mm, width 0.5 mm, thickness 0.5 mm, enabling placement on fine-pitch boards.
* Termination Material: Nickel barrier with tin plating, ensuring reliable solderability and long-term thermal and mechanical stability.
* Mounting Method: Reflow solderable on standard PCB pads for surface-mount assembly.
* Moisture Sensitivity Level (MSL): 1, indicating unlimited floor life and no special handling required for soldering.
* Soldering Conditions: Compatible with Pb-free reflow soldering profiles up to 260°C.

## Thermal and Environmental Performance

* Operating Temperature Range: -55°C to +125°C, suitable for automotive, industrial, and consumer electronics.
* Thermal Shock and Humidity Resistance: Passes industry-standard tests for thermal cycling, humidity, and solder heat resistance, maintaining capacitance stability and mechanical integrity.
* Voltage Dependence: Moderate voltage coefficient typical of X7R dielectrics; capacitance decreases slightly under DC bias but remains within tolerance.
* Reliability: High mean time to failure (MTTF) due to low stress design, robust ceramic formulation, and stable termination.

## Functional Applications

* Decoupling and Bypassing: Used near IC power pins to suppress voltage transients and stabilize supply rails.
* Filtering: Suitable for EMI/RFI suppression in signal lines and power circuits.
* Timing Circuits: Can be used in RC networks for timing or delay elements in low- to medium-frequency applications.
* Energy Storage: Provides short-term charge storage for voltage stabilization in portable electronics.
* Automotive Electronics: Suitable for infotainment, sensor modules, and control systems requiring high thermal stability and reliable operation.
* Telecommunications: Enables signal integrity and voltage regulation in high-density PCB designs for mobile devices and networking equipment.

## Design Considerations

* Voltage Derating: Recommended to operate at 50–70% of rated voltage for long-term reliability, especially in high-temperature or high-stress applications.
* ESR and ESL: Low equivalent series resistance and inductance make the GRM155R71H104KE14D suitable for high-frequency decoupling applications.
* PCB Layout: Place capacitors as close as possible to IC power pins to minimize parasitic inductance and optimize transient response.
* Series or Parallel Configurations: Multiple capacitors can be paralleled to achieve higher total capacitance or lower impedance at high frequencies.
* Thermal Management: Due to small package size, careful consideration of PCB copper area and thermal pad design helps dissipate heat during high-current transient events.

## Summary

The Murata GRM155R71H104KE14D is a high-performance 100 nF, 50 V MLCC in a compact 0402 package with X7R dielectric. It combines stable capacitance across temperature, low ESR, high insulation resistance, and reliable surface-mount compatibility for a wide range of applications including decoupling, filtering, and energy storage. With robust thermal, environmental, and voltage performance, this capacitor is suitable for portable electronics, automotive systems, industrial control circuits, and telecommunications, providing long-term stability and reliable operation in dense PCB layouts and harsh operating conditions.

Q1: What is the Murata Manufacturing GRM155R71H104KE14D?
A: The Murata GRM155R71H104KE14D is a ceramic multilayer capacitor (MLCC) designed for general-purpose applications. It features a capacitance value of 100nF, a voltage rating of 50V, and is made with a high-temperature resistant dielectric material, making it suitable for a wide range of electronic circuits.

Q2: What is the capacitance value of the Murata GRM155R71H104KE14D?
A: The Murata GRM155R71H104KE14D has a capacitance value of 100nF, which is ideal for smoothing and filtering applications in various electronic devices.

Q3: What is the voltage rating of the Murata GRM155R71H104KE14D?
A: The capacitor has a voltage rating of 50V, which means it can safely operate in circuits with a voltage up to 50 volts without risk of failure or damage.

Q4: What type of dielectric material is used in the Murata GRM155R71H104KE14D?
A: The GRM155R71H104KE14D uses a X7R ceramic dielectric material, which offers stable capacitance over a wide temperature range and is ideal for general-purpose applications in both commercial and industrial circuits.

Q5: What is the temperature range of the Murata GRM155R71H104KE14D?
A: The capacitor operates effectively within a temperature range of -55°C to +125°C, making it suitable for use in high-temperature environments.

Q6: What is the size of the Murata GRM155R71H104KE14D?
A: The Murata GRM155R71H104KE14D has a small 0402 (1.0mm x 0.5mm) package size, making it ideal for compact, space-constrained designs in modern electronics.

Q7: What applications is the Murata GRM155R71H104KE14D suitable for?
A: The capacitor is used in a variety of applications such as filtering, decoupling, and energy storage in consumer electronics, automotive circuits, communication devices, and industrial equipment.

Q8: What is the ESR (Equivalent Series Resistance) of the Murata GRM155R71H104KE14D?
A: The GRM155R71H104KE14D features a low ESR, ensuring minimal power loss and efficient operation in high-speed switching circuits and power supply filtering applications.

Q9: Is the Murata GRM155R71H104KE14D lead-free?
A: Yes, the capacitor is lead-free, in compliance with RoHS (Restriction of Hazardous Substances) regulations, making it environmentally friendly and safe for use in electronic devices.

Q10: What is the tolerance of the Murata GRM155R71H104KE14D capacitor?
A: The Murata GRM155R71H104KE14D has a tolerance of ±10%, which means its actual capacitance can vary by up to 10% from the nominal value.

Q11: What is the rated lifetime of the Murata GRM155R71H104KE14D?
A: The rated lifetime of this capacitor is designed for long-term reliability, with a typical operational life of over 10 years under normal conditions, making it a durable choice for most applications.

Q12: Can the Murata GRM155R71H104KE14D be used in high-frequency applications?
A: Yes, this capacitor is suitable for high-frequency applications due to its low ESR and stable characteristics at various frequencies, making it ideal for use in RF circuits, oscillators, and other high-frequency systems.

Q13: Does the Murata GRM155R71H104KE14D have any safety certifications?
A: The capacitor is manufactured to meet global safety and quality standards, including RoHS compliance and certifications for use in automotive and industrial electronics, ensuring it meets the necessary safety requirements.

Q14: How does the Murata GRM155R71H104KE14D perform in harsh environments?
A: The capacitor is highly reliable in harsh environments, with a wide operating temperature range and high resistance to shock and vibration, making it ideal for automotive and industrial applications.

Q15: What is the voltage derating of the Murata GRM155R71H104KE14D?
A: It is recommended to derate the voltage by 20% for optimal performance, which means the GRM155R71H104KE14D should be operated at a maximum voltage of 40V in real-world conditions to ensure longevity and reliability.

Q16: Can the Murata GRM155R71H104KE14D be used in power supply circuits?
A: Yes, this capacitor is commonly used in power supply circuits for smoothing, decoupling, and noise filtering applications due to its stable capacitance and low ESR at high frequencies.

Q17: What is the self-resonant frequency of the Murata GRM155R71H104KE14D?
A: The self-resonant frequency of the Murata GRM155R71H104KE14D is typically in the range of several hundred MHz, which makes it effective in high-speed applications.

Q18: Does the Murata GRM155R71H104KE14D exhibit microphonic effects?
A: The Murata GRM155R71H104KE14D is designed to minimize microphonic effects, making it suitable for sensitive applications where noise interference is a concern.

Q19: Is the Murata GRM155R71H104KE14D suitable for automotive electronics?
A: Yes, the capacitor is designed to meet the high reliability standards required for automotive applications, providing excellent performance in temperature extremes, vibrations, and other demanding conditions.

Q20: What is the recommended storage condition for the Murata GRM155R71H104KE14D?
A: The capacitor should be stored in a dry, cool environment, avoiding exposure to humidity and extreme temperatures. It is recommended to use the capacitor within one year of purchase for best performance.