04025C501KAT2A - 500pF 50V X7R 0402 MLCC | KYOCERA AVX
部品番号: 04025C501KAT2A ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0.125 | $0.13 |
| 10 | $0.09 | $0.90 |
| 100 | $0.06 | $6.00 |
| 500 | $0.03 | $15.00 |
| 1,000 | $0.013 | $13.00 |
04025C501KAT2A 概要
A multilayer ceramic capacitor is a passive component that stores charge in alternating layers of ceramic dielectric and metal electrodes. It sits in the component hierarchy under capacitors -> passive components, and MLCCs are the most widely used capacitor type in modern electronics due to their small size, low ESR, and absence of polarity. X7R dielectrics are EIA Class II temperature-stable formulations that maintain usable capacitance across -55C to +125C while offering higher volumetric efficiency than Class I C0G parts.
Key features of the 04025C501KAT2A include its 500 pF nominal capacitance suitable for decoupling, filtering, and timing functions; the 50V DC voltage rating that covers 5V, 12V, 24V, and most low-voltage logic rails with margin; ±10% tolerance for predictable circuit behavior; and the compact 0402 (1.0 mm x 0.5 mm) footprint that enables high-density PCB assembly with standard reflow processes.
The X7R dielectric in this part exhibits capacitance variation within ±15% over its -55C to +125C temperature range, with additional capacitance reduction under applied DC bias that designers should account for in high-rail applications. This behavior is typical of intermediate-K Class II ceramics and is the principal trade-off against C0G/NP0 parts, which offer zero temperature drift but at roughly one-tenth the volumetric efficiency. As a non-polarized component it can be mounted in either orientation and tolerates standard lead-free reflow profiles.
Typical applications include high-frequency supply decoupling for microcontrollers and FPGAs, analog signal coupling and filtering, RF bypass networks, and general-purpose timing circuits where 500 pF values are required. The 50V rating also makes it suitable for industrial 24V systems and automotive sensor signal lines with transient headroom.
Designers should verify DC bias and AC ripple derating, and avoid mechanical stress from board flex, which can crack MLCCs; 0402 sizes are less sensitive than larger case sizes.
This page synthesizes distributor pricing, drop-in alternatives from multiple AVX family members, and practical design guidance not consolidated in the manufacturer datasheet.
ドロップイン代替品: 04025C501KAT2A — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
04025C501JAT2A
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
04023C501KAT2A
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
04025C471KAT2A
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
04025C102KAT2A
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
04025C331KAT2A
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
04025C501KAT2A 最大定格＆電気的特性
| Capacitance | 500 pF |
| Capacitance Tolerance | ±10% |
| Rated Voltage (DC) | 50 V |
| Temperature Coefficient | X7R (EIA Class II) |
| 動作温度範囲 | -55C to +125C |
| パッケージ / ケース | 0402 (1005 Metric) |
| 実装タイプ | Surface Mount (SMD/SMT) |
| Case Size (L x W) | 1.0 mm x 0.5 mm |
| Dielectric Material | Class II ceramic (X7R) |
| Polarity | Non-polarized |
| Packaging | Tape & Reel (TR) |
| Terminations | 2 (standard nickel-barrier, tin-plated) |
| Applications | General purpose, decoupling, filtering, bypass |
| RoHS ステータス | Compliant |
| MSLレベル | 1 (unlimited floor life per JEDEC J-STD-020 typical for MLCC) |
| Manufacturer | KYOCERA AVX |
04025C501KAT2A 1.0 mm x 0.5 mm ピン配置ガイド
04025C501KAT2A (1.0 mm x 0.5 mm パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: 04025C501KAT2A.
詳細は データシート をご参照ください。
主な用途
04025C501KAT2A の用途: 6 件s: MCU and FPGA Supply Decoupling, Analog Signal Coupling and Filtering, Industrial 24V Control Systems, RF Bypass and Bias Networks, Automotive Sensor and Body Electronics, IoT and Wearable Compact Devices.
MCU and FPGA Supply Decoupling
The 04025C501KAT2A is a natural fit for local decoupling of microcontrollers, FPGAs, and digital SoCs operating on 3.3V, 5V, or 12V rails. Its 500 pF value and small 0402 case give low parasitic inductance (well under 1 nH), so it shunts fast switching transients effectively at high frequency where bulk electrolytics and larger MLCCs lose effectiveness. Placed within a few millimeters of each power pin with short, wide traces to the ground plane, it suppresses supply ringing and reduces EMI. At 50V rating it also survives inrush and transient events on industrial 24V-derived logic rails. Because X7R capacitance drops under DC bias, on lightly-loaded rails this effect is negligible; pair it with 10 uF and 100 nF MLCCs for a complete multi-decade decoupling network per the MCU vendor reference design.
おすすめ
Analog Signal Coupling and Filtering
In analog front ends, the 04025C501KAT2A sets filter corner frequencies and AC-couples signal paths where its 500 pF value is appropriate for mid-frequency ranges. With a ±10% tolerance it yields predictable pole placement; for example, with a 10 kohm resistor it forms a pole near 31.8 kHz, useful in anti-alias or noise-shaping roles. The X7R dielectric is stable within ±15% across -55C to +125C, keeping response consistent over temperature. Designers should note X7R voltage coefficient and microphony: for audio-path coupling or precision filters where distortion matters, AVX C0G 0402 alternatives are preferable, but for supply-referenced filtering and bias decoupling in sensor amplifiers and instrumentation this X7R part delivers cost-effective performance on dense 0402 layouts.
おすすめ
Industrial 24V Control Systems
The 50V DC rating of the 04025C501KAT2A provides comfortable margin on industrial 24V buses and their derived sensor lines, where transient excursions above nominal supply are routine. X7R operation from -55C to +125C covers factory floor and machinery enclosures with wide ambient swings. Used for local bypass of PLC I/O modules, motor-driver logic supplies, and optocoupler bias networks, the 0402 size fits the dense multi-channel layouts typical of industrial control boards. Its non-polarized nature simplifies placement on bidirectional signal conditioning networks. The small case size also reduces sensitivity to board flex compared with larger MLCCs, improving reliability in vibration-prone environments such as conveyor drives and robotics controllers.
おすすめ
RF Bypass and Bias Networks
The 04025C501KAT2A serves as an RF bypass on LNA, mixer, and VCO bias lines up to several hundred MHz, where the 0402 case minimizes series inductance and keeps the self-resonant frequency high. At 500 pF, the impedance minimum occurs in the low hundreds of MHz for typical X7R 0402 ESL values, making it effective for shunting bias-line noise to ground on wireless modules and transceiver front ends. The 50V rating comfortably covers bias voltages on PA supply pins. For resonant or matching-network positions, substitute a C0G 0402 part because X7R loss tangent and voltage coefficient degrade Q and linearity. Used purely for bypass, this part offers low cost and stable availability in full reel quantities.
おすすめ
Automotive Sensor and Body Electronics
With an X7R range of -55C to +125C, the 04025C501KAT2A suits under-hood-adjacent modules, body control units, and sensor conditioning boards where automotive ambient requirements approach AEC-Q100 Grade 0-1 conditions (confirm the specific AVX automotive screening suffix for formally qualified builds). The 50V rating covers load-dump-clamped 12V rails and 24V commercial-vehicle sensor lines. Typical roles include CAN/LIN transceiver supply bypass, sensor bias filtering, and ESD-network AC grounding. The 0402 package supports the high component density of body-control and gateway ECUs, and the non-polarized construction suits bipolar signal lines such as knock-sensor or variable-reluctance crank inputs where electrolytics cannot be used.
おすすめ
IoT and Wearable Compact Devices
In battery-powered IoT nodes, wearables, and smart-home sensors, the 04025C501KAT2A combines a 1.0 mm x 0.5 mm footprint with low cost, allowing dense two-sided assembly on miniature PCBs. Its 500 pF value filters supply noise for BLE SoCs, MEMS sensors, and PMIC rails, while the 50V rating covers USB-charged single-cell Li-ion systems (4.2V max) with generous margin. X7R stability across -55C to +125C handles outdoor enclosures and charging thermal events. Low profile suits rigid-flex and coin-cell layouts. Because leakage is essentially zero for MLCCs, it adds no measurable drain to sleep-mode power budgets, an advantage over tantalum alternatives in energy-harvesting designs with microamp standby targets.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: 04025C501KAT2A — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 04025C501JAT2A | 04023C501KAT2A | 04025C471KAT2A | 04025C102KAT2A |
|---|---|---|---|---|---|
| Package | 0402 (1005 Metric) | 0402 (1005 Metric) - same | 0402 (1005 Metric) - same | 0402 (1005 Metric) - same | 0402 (1005 Metric) - same |
| Brand | KYOCERA AVX | KYOCERA AVX | KYOCERA AVX | KYOCERA AVX | KYOCERA AVX |
| Capacitance | 500 pF | 500 pF | 500 pF | 470 pF | 1000 pF |
| Tolerance | ±10% | ±5% | ±10% | ±10% | ±10% |
| Rated Voltage | 50 V | 50 V | 25 V | 50 V | 50 V |
| Temperature Coefficient | X7R | X7R | X7R | X7R | X7R |
| Operating Temperature | -55C to +125C | -55C to +125C | -55C to +125C | -55C to +125C | -55C to +125C |
主な差別化要因
- Full 50V rating at commodity 0402 cost （vs 04023C501KAT2A)
- Standard ±10% tolerance minimizes cost （vs 04025C501JAT2A)
- Temperature-stable Class II dielectric （vs 04025C471KAT2A)
設計ノート
Account for DC bias derating before committing to X7R values. Estimated: an X7R 0402 MLCC at rated bias can lose 15-40% of nominal capacitance depending on manufacturer and case size; at 5V on a 50V part the loss is small (typically under 10%), but on denser higher-K values it becomes significant. When a circuit needs an accurate 500 pF at bias, measure or consult the AVX SpiANSYS/SpiSim DC bias curves rather than assuming nominal. Estimated figures - verify against the manufacturer datasheet.
Use a standard 0402 (1005 metric) land pattern per IPC-7351 density level B/C and keep decoupling loops short: place the capacitor within 2-3 mm of the IC power pin with a via stitched directly to the ground plane. Avoid placing 0402 MLCCs within 3 mm of board edges or mounting-screw bosses - board flex during depaneling and screwdown is a leading cause of ceramic cracking, which shows up as intermittent shorts in the field.
For RF bypass use, exploit the low inductance of the 0402 case: estimated self-resonant frequency of a 500 pF 0402 X7R is roughly 150-250 MHz depending on ESL of 0.4-0.6 nH and placement parasitics. Above resonance the part becomes inductive, so combine it with a 100 nF and a 1 uF sibling to cover lower decades. Estimated figures - confirm with the manufacturer S-parameter data or your own VNA measurement for critical designs.
コンプライアンス情報
RoHS compliance confirmed via distributor listings (DigiKey, Mouser, LCSC). REACH, halogen-free, and conflict-minerals declarations not stated in the provided web data - consult the KYOCERA AVX compliance certificate for formal values.
