What are the types of capacitors in Murata?

Murata, as a leading enterprise in the global electronic components field, has a capacitor product line covering multiple fields such as consumer electronics, automotive, communication, industry, and healthcare, forming a multi-level and differentiated product matrix. The following are the core categories and technical characteristics analysis of Murata capacitors:
1、 Surface mount capacitor (single-chip ceramic capacitor)
1. GRM series: the main force of consumer electronics
Technical features:
Adopting a multi-layer ceramic structure, it has excellent high-frequency characteristics and anti-interference performance.
The temperature characteristics cover X7R (-55 ℃~+125 ℃, capacitance change rate ± 15%), X5R (-55 ℃~+85 ℃), etc., adapting to different environmental requirements.
Application scenarios:
Power filtering and signal coupling for consumer electronic devices such as smartphones, tablets, and laptops.
Example: GRM188R71C225KE15 (0603 package, 16V rated voltage, 2.2 μ F capacity) is widely used in power supply modules for mobile devices.
2. GRJ series: Optimal selection for high-frequency communication
Technical features:
Compared to the GRM series, it has lower equivalent series resistance (ESR) and higher quality factor (Q value).
Optimize material and structural design, reduce signal loss, and improve high-frequency performance.
Application scenarios:
5G base stations, routers, medical imaging equipment, and other scenarios that require strict frequency response and stability.
Example: GRJ21BC71H105KE01 (0805 package, 50V rated voltage, 1 μ F capacity) is used for impedance matching of communication modules.
3. GA2/GA3 series: cornerstone of industrial and automotive electronics
Technical features:
Ceramic multi-layer structure, high stability, affordable price.
Passed AEC-Q200 vehicle specification certification (for some models), suitable for harsh environments such as high temperature and vibration.
Application scenarios:
Industrial automation equipment, automotive electronic control units (ECUs), motor drive circuits.
Example: GA342YD71H224K (1210 package, 50V rated voltage, 220nF capacity) is used for car power filtering.
4. GCM/GJM series: High frequency circuit specific
Technical features:
GCM series: Low ESR design to enhance high-frequency efficiency.
GJM series: High frequency, low power consumption, excellent Q value, suitable for resonant circuits.
Application scenarios:
Communication equipment, computer peripherals, wireless modules.
Example: GJM1555C1HR50BB01 (0402 package, 50V rated voltage, 50pF capacity) is used for RF front-end matching.
5. GMA/GMD series: high capacity combined with low ESR
Technical features:
Balancing high capacity and low ESR, supporting high current loads.
Suitable for scenarios that require rapid charging and discharging.
Application scenarios:
Communication base station, industrial power supply, electric vehicle charging module.
Example: GMA55D71H475KE01 (2220 package, 50V rated voltage, 4.7 μ F capacity) is used for power filtering.
6. GR3/GR4 series: high-precision measurement and communication
Technical features:
Extremely high Q value and excellent frequency response, suitable for precision measurement and high-frequency communication.
Application scenarios:
Oscilloscope, spectrum analyzer, communication testing equipment.
Example: The GR3 series is used for signal conditioning of 5G testing instruments.
2、 Electrolytic capacitors: low ESR and large capacity representatives
Polymer aluminum electrolytic capacitor
Technical features:
Solid polymer electrolyte, low ESR, low impedance, large capacity.
No DC bias effect, excellent temperature stability.
Application scenarios:
CPU backup power supply, LED driver, industrial power module.
Example: Polymer aluminum capacitor with 4.5m Ω ESR, used for input filtering of server power supply.
3、 Fine tuning capacitors: precise adjustment of high-frequency circuits
TZB4/TZC3 series
Technical features:
SMD ceramic fine-tuning capacitor, supporting reflow soldering.
The TZB4 series offers 8 static capacitance values, while the TZC3 series identifies capacitance through color.
Application scenarios:
Impedance matching of power amplifiers in mobile communication base stations.
Example: TZB4 series is used for fine tuning compensation of high-frequency circuits.
TZR1 series
Technical features:
The world's smallest resin free SMD ceramic fine-tuning capacitor (1.5 × 1.7 × 0.85mm).
High static capacitance value (up to 8pF), excellent solder heat resistance.
Application scenarios:
RF front-end fine-tuning for portable devices.
4、 Variable capacitance: frequency regulation and NFC applications
LXRW series
Technical features:
By adjusting the tuning voltage to change the battery capacity, NFC frequency adjustment is supported.
Example: LXRW19V600-029 FeliCa (NFC) module for smart devices.
5、 Special Application Capacitors: Meeting Extreme Needs
1. Supercapacitors (EDLC)
Technical features:
Based on the electrical double-layer principle, high power density, fast charging and discharging.
Compact design, suitable for space constrained scenarios.
Application scenarios:
LED flash, wireless sensor node, backup power supply.
Example: Murata collaborated with CAP-XX to develop a supercapacitor for instantaneous power output in smartwatches.
2. Single layer microchip capacitors
Technical features:
Precision ceramic materials and gold electrodes, single-layer structure, excellent frequency characteristics.
The size is as small as 0.25mm and supports high-density packaging.
Application scenarios:
Microwave integrated circuits (amplifiers, mixers), optical communication equipment.
3. Silicon capacitors
Technical features:
Semiconductor MOS process, three-dimensional structure enhances electrostatic capacity.
High reliability, suitable for medical and automotive electronics.
Application scenarios:
Medical implant devices, automotive radar, communication base stations.
4. High heat-resistant film capacitors
Technical features:
Can be used continuously at 125 ℃ and has self recovery function.
Application scenarios:
Electric vehicle motor drive, industrial frequency converter.
6、 Filtering and Coupling Capacitors: Ensuring Signal Integrity
1. KC3/KCM series
Technical features:
Optimize filtering performance, suitable for high-speed communication equipment.
Application scenarios:
Fiber optic transceiver, multimedia equipment.
2. LLA/LLC series
Technical features:
Low frequency filtering and coupling, low ESL design.
Application scenarios:
Industrial control system, communication base station.
7、 Automotive specific capacitors: balancing high temperature and reliability
GCM series
Technical features:
Passed AEC-Q200 certification, with high temperature resistance of 125 ℃/150 ℃, and tin plated electrodes to enhance weldability.
Application scenarios:
Automotive powertrain system, airbag controller.
8、 Material Technology Classification: Temperature Compensation and High Dielectric Constant
1. Temperature compensation type (C0G/NP0)
Technical features:
Titanium oxide or calcium zirconate medium has excellent temperature stability (-55 ℃~+125 ℃) and a capacitance change rate of ± 30ppm/℃.
Application scenarios:
High frequency oscillator, precision filtering circuit.
2. High dielectric constant type (X7R/X5R)
Technical features:
Barium titanate dielectric, with a dielectric constant of 1000~20000 at room temperature, achieves miniaturization and high capacity.
Application scenarios:
Power filtering for consumer electronics and automotive electronics.
Murata capacitors have built a product system covering all scenarios through material science, structural design, and technological innovation. From consumer electronics to the automotive industry, from high-frequency communication to extreme environmental applications, its capacitors have the core advantages of high performance, high reliability, and miniaturization, continuously pushing the boundaries of electronic technology.