08051A131GAT2A

Product Overview – KYOCERA AVX 08051A131GAT2A

The KYOCERA AVX 08051A131GAT2A is a surface-mount multilayer ceramic capacitor (MLCC) with a nominal capacitance of 130 pF and a rated voltage of 100 V. It uses a C0G (NP0) dielectric and is supplied in the 0805 (2012 metric) package size. The device is specified with a tight capacitance tolerance of ±2%, providing precise reactive values in RF, timing, and high-stability signal chains.

As part of KYOCERA AVX’s surface mount ceramic capacitor products, the 08051A131GAT2A leverages the C0G (NP0) dielectric system, which is categorized under EIA Class I temperature-compensating materials. This combination of package size, dielectric, voltage rating, and capacitance value positions the 08051A131GAT2A as a candidate for designs where dimensional constraints must be balanced against stability of capacitance under temperature, time, and operating conditions.

2.

C0G (NP0) Dielectric Characteristics in the 08051A131GAT2A

The 08051A131GAT2A uses a C0G (NP0) dielectric formulation, one of the most stable ceramic capacitor dielectrics available. Modern C0G (NP0) materials incorporate neodymium, samarium, and other rare earth oxides to achieve consistently stable electrical properties.

For the 08051A131GAT2A, the C0G (NP0) dielectric exhibits a capacitance change with temperature of 0 ± 30 ppm/°C over the range from -55 °C to +125 °C. In practical terms, this corresponds to less than ±0.3% variation in capacitance across this entire temperature span. For a 130 pF device, the allowed temperature-induced drift is within a fraction of a picofarad, which supports tight impedance control in resonant and filter networks.

The C0G (NP0) dielectric in the 08051A131GAT2A belongs to the temperature-compensating EIA Class I family. This dielectric class is designed so that reactance values remain effectively constant against temperature excursions, making it suitable where predictable phase and frequency response are required.

3.

Capacitance Stability and Aging Performance of the 08051A131GAT2A

Capacitance drift and hysteresis characteristics of the 08051A131GAT2A are derived directly from its C0G (NP0) formulation. Capacitance drift or hysteresis is specified as negligible at less than ±0.05%, compared with up to ±2% typically observed in many film capacitors. This means that repeated temperature cycling or voltage stress in normal operation yields only a minor shift in measured capacitance.

Typical capacitance change with life for the 08051A131GAT2A C0G (NP0) dielectric is less than ±0.1%. This figure is approximately one-fifth of that observed in many other dielectric types. Over extended operational periods, the 130 pF nominal value remains close to its initial measurement, simplifying long-term calibration strategies and helping maintain consistent system behavior without frequent re-tuning.

A practical example is an RF matching network where multiple capacitors shape impedance across a band. In such a network, cumulative drift from each component can shift center frequency or bandwidth over time. Using the 08051A131GAT2A with its low hysteresis and life drift reduces the total deviation in the network’s characteristics, supporting sustained performance over the operating lifetime.

4.

Electrical and Package Parameters of the 08051A131GAT2A

The core electrical parameters of the KYOCERA AVX 08051A131GAT2A are:

- Capacitance: 130 pF

- Capacitance tolerance: ±2%

- Rated voltage: 100 V

- Dielectric: C0G (NP0), EIA Class I

- Package size: 0805 (2012 metric) surface-mount configuration

The 0805 mechanical format provides a compact footprint suitable for dense PCB layouts while retaining enough area to support a 100 V rating at 130 pF with a stable Class I dielectric. In many compact RF front-ends, PLL loops, and precision timing circuits, the 08051A131GAT2A can be placed close to active devices, limiting parasitic inductance and improving high-frequency behavior compared with leaded components.

The specified ±2% tolerance on 130 pF allows more precise design of resonant tanks and filters than general-purpose ±5% or ±10% capacitors. For example, in a narrowband crystal filter or oscillator, a ±2% variation keeps frequency spread tighter without requiring extensive trim or binning strategies.

5.

Application Considerations for the 08051A131GAT2A in Design

When applying the KYOCERA AVX 08051A131GAT2A in circuits, the C0G (NP0) characteristics guide where it delivers the strongest benefit:

- Temperature stability: The 0 ± 30 ppm/°C behavior from -55 °C to +125 °C suits designs that may be exposed to wide ambient swings, such as outdoor RF equipment, industrial controls, or automotive subsystems, where maintaining nearly constant capacitance contributes to consistent timing or frequency response.

- Long-term stability: Less than ±0.1% change with life means the 08051A131GAT2A can be used in precision references, filters, and timing networks with reduced concern about long-term drift causing specification deviation.

- Comparison to alternative dielectrics: Many Class II ceramic dielectrics offer higher capacitance values per unit volume, but their temperature and aging behaviors are less stable. In contrast, the 08051A131GAT2A sacrifices volumetric efficiency for stability. This trade-off is often beneficial in RF matching networks, high-Q resonant circuits, or feedback paths where small capacitance changes can shift operating points.

- Comparison to film capacitors: The 08051A131GAT2A’s C0G (NP0) drift and hysteresis (<±0.05%) are substantially lower than the up-to-±2% typical for many film technologies. In applications where both board area and long-term precision matter—such as compact communication modules—this stability, combined with the surface-mount 0805 format, can simplify layout and improve reproducibility.

A real-world usage scenario would be a 100 V-rated signal coupling or tuning capacitor in an RF power amplifier stage. The 08051A131GAT2A’s 130 pF value, combined with its voltage handling and stability, allows engineers to maintain amplifier gain and output matching across temperature and over the life of the device, reducing the need to re-adjust tuning after deployment.

6.

Summary and Engineering Implications of Using the 08051A131GAT2A

The KYOCERA AVX 08051A131GAT2A combines a 130 pF capacitance, 100 V rating, and C0G (NP0) dielectric within a standard 0805 surface-mount package. Key behaviors—tight ±2% tolerance, low temperature coefficient (0 ± 30 ppm/°C), negligible hysteresis (<±0.05%), and limited life drift (<±0.1%)—define its performance profile.

From an engineering perspective, these attributes allow designs that rely on fixed, predictable capacitance to minimize guardbands in timing, filtering, or RF tuning. The device’s characteristics also make it suitable where recalibration or maintenance access is limited and where small but cumulative component drifts could otherwise shift system behavior over time.

7.

Conclusion – Positioning the 08051A131GAT2A in Ceramic Capacitor Selection

Within the broader landscape of surface-mount ceramic capacitors, the KYOCERA AVX 08051A131GAT2A occupies a role focused on stability and precision rather than maximum capacitance density. For designs needing a 130 pF, 100 V capacitor that maintains nearly constant value from -55 °C to +125 °C and over extended service life, the 08051A131GAT2A offers a consistent, predictable option in the widely used 0805 format.

Frequently Asked Questions (FAQ)

Q1. What are the key electrical specifications of the KYOCERA AVX 08051A131GAT2A?

A1. The KYOCERA AVX 08051A131GAT2A is a 130 pF multilayer ceramic capacitor with a rated voltage of 100 V, using a C0G (NP0) dielectric and supplied in an 0805 (2012 metric) SMD package. The capacitance tolerance is ±2%, supporting precise reactive values in sensitive circuits.

Q2. How stable is the capacitance of the 08051A131GAT2A over temperature?

A2. The 08051A131GAT2A employs a C0G (NP0) dielectric with a temperature coefficient of 0 ± 30 ppm/°C between -55 °C and +125 °C. This corresponds to less than ±0.3% change in capacitance across this temperature range, making the effective value of the 130 pF device nearly constant under typical operating conditions.

Q3. How does the long-term aging of the 08051A131GAT2A compare to other capacitor types?

A3. The typical capacitance change with life for the 08051A131GAT2A’s C0G (NP0) dielectric is less than ±0.1%. This is about one-fifth of the change seen in many other dielectric systems, which can experience significantly higher drift over time. This behavior benefits applications where long-term frequency or timing accuracy is required.

Q4. How do the capacitance drift and hysteresis of the 08051A131GAT2A impact circuit performance?

A4. The 08051A131GAT2A has capacitance drift or hysteresis specified as negligible, less than ±0.05%. In practical circuits—such as oscillators or narrowband filters—this means the capacitance remains close to its initial value even after temperature cycling or extended operation, reducing the spread in system response and helping maintain designed center frequencies and phase characteristics.

Q5. In what type of applications is the KYOCERA AVX 08051A131GAT2A typically used?

A5. Based on its C0G (NP0) dielectric stability, 130 pF value, 100 V rating, and 0805 package, the 08051A131GAT2A suits RF matching networks, resonant circuits, high-stability filters, timing networks, precision signal conditioning, and control loops. Any application requiring a small, stable capacitance that does not significantly vary over temperature or time can benefit from this device.

Q6. Why choose the C0G (NP0) dielectric of the 08051A131GAT2A over higher-capacitance dielectrics?

A6. While higher-permittivity dielectrics can offer larger capacitance in smaller sizes, they typically exhibit more pronounced temperature coefficients, voltage dependence, and aging. The 08051A131GAT2A’s C0G (NP0) dielectric prioritizes stability: the capacitance remains nearly constant with temperature, has low hysteresis, and minimal long-term drift. This is advantageous in precision circuits where even small deviations can alter frequency, delay, or gain.

Q7. How does the 0805 package of the 08051A131GAT2A influence its use on PCBs?

A7. The 0805 (2012 metric) package of the 08051A131GAT2A offers a compact footprint that still accommodates a 100 V rating with a C0G (NP0) dielectric. This size is common in automated assembly and allows close placement to active devices, reducing lead lengths and parasitic inductance, which is beneficial in high-frequency and high-speed layouts.

Q8. How does the 08051A131GAT2A compare to film capacitors in terms of stability?

A8. Film capacitors often exhibit capacitance hysteresis and drift up to about ±2%. In contrast, the 08051A131GAT2A, using a C0G (NP0) dielectric, specifies drift or hysteresis at less than ±0.05% and typical life drift under ±0.1%. For equal capacitance and voltage ratings, the 08051A131GAT2A therefore offers a more stable SMD alternative where surface-mount compatibility and tight long-term tolerance are desired.

Q9. What is the significance of the ±2% tolerance on the 08051A131GAT2A?

A9. The ±2% tolerance on the 130 pF nominal capacitance means the 08051A131GAT2A can be used where capacitance must be closely controlled, such as precise tuning of resonant circuits or tight-tolerance filters. This narrower tolerance window reduces the spread in component values during production, simplifying design margins and post-assembly tuning requirements.

Q10. Does the 100 V rating of the KYOCERA AVX 08051A131GAT2A limit its use only to high-voltage circuits?

A10. The 100 V rating indicates the maximum working voltage the 08051A131GAT2A is designed to handle, but it can also be used in lower-voltage circuits where additional margin is desired. Operating the capacitor at voltages below its rating can contribute to long-term reliability, while still utilizing its stability benefits in low- and medium-voltage signal paths.