GRM188Z71E225KE43D - 2.2uF 25V X7R MLCC 0603 | Murata
부품 번호: GRM188Z71E225KE43D ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0.12 | $0.12 |
| 10 | $0.098 | $0.98 |
| 100 | $0.075 | $7.50 |
| 500 | $0.058 | $29.00 |
| 1,000 | $0.045 | $45.00 |
| 4,000 | $0.034 | $136.00 |
GRM188Z71E225KE43D 개요
What is an X7R MLCC? An MLCC (multilayer ceramic capacitor) is a passive component formed by alternating layers of ceramic dielectric and metal electrodes, then sintered into a monolithic block with terminations on each end. X7R is a Class II dielectric defined by EIA-198: it offers moderate capacitance density (much higher than Class I C0G/NP0), with a specified capacitance temperature stability of ±15% across the -55°C to +125°C operating window. X7R is the standard choice for decoupling, filtering, smoothing, and coupling applications where modest temperature variation is acceptable but miniaturization and bulk capacitance are required.
Key features of the GRM188Z71E225KE43D include a 2.2 uF nominal capacitance in a compact 0603 footprint (1.60 mm × 0.80 mm, 0.80 mm land pattern), 25 VDC rated voltage, ±10% capacitance tolerance, and a maximum thickness of approximately 0.80 mm (Murata's Z7 characteristic, optimized for high capacitance in small case sizes). It is RoHS and REACH compliant, lead-free, and suitable for reflow soldering up to 260°C peak temperature.
The GRM series uses nickel-barrier tin-finish terminations compatible with Pb-free assembly, and is qualified to Murata's rigorous reliability standards, including AEC-Q200 for select part variants. The Z7 voltage-temperature code (X7R dielectric optimized for 25 V rating in 0603 size at 2.2 uF) represents Murata's mature high-density stack technology, enabling this part to serve as a low-cost, high-availability standard decoupling capacitor.
Typical applications include power rail decoupling in microcontrollers and digital logic ICs, smoothing on low-dropout (LDO) and buck regulator outputs, audio coupling and bypass in portable devices, USB power line filtering, and general-purpose bypass in IoT nodes, wearables, and consumer appliances. The 25 V rating provides ample margin for 3.3 V, 5 V, and 12 V rails.
When designing with this part, derate voltage by 50% (i.e., limit continuous operation to ≤12.5 V) when long-term DC bias reliability is critical, as X7R capacitance drops significantly with applied DC voltage. Place the capacitor as close as possible to IC power pins with short, wide traces to minimize parasitic inductance.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single authoritative reference for sourcing the GRM188Z71E225KE43D.
드롭인 대체품: GRM188Z71E225KE43D — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
GRM188R71E225KE14D
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
GRM188R71E225KE44D
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
CL10B225KP85PNC
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
CGA3E3X7R1E225K080AB
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
CC0603KRX7R9BB225
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
GRM188Z71E225KE13D
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
GRM188Z71E225KE43D 최대 정격 & 전기적 특성
| Capacitance | 2.2 uF |
| Capacitance Tolerance | ±10% |
| Voltage Rating (DC) | 25 V |
| Dielectric | X7R |
| Temperature Coefficient Code | Z7 (X7R, 25V-optimized for 0603) |
| 패키지 / 케이스 | 0603 (1608 Metric) |
| Size (L x W) | 1.60 mm x 0.80 mm |
| Thickness (Max) | 0.80 mm |
| 동작 온도 | -55°C to +125°C |
| 실장 유형 | Surface Mount |
| Termination Style | SMD/SMT (Ni barrier / Sn finish) |
| Series | GRM |
| MSL 레벨 | 1 |
| RoHS 상태 | Compliant |
| Lead-Free | Yes |
GRM188Z71E225KE43D 0603 (1608 metric) 핀 구성 가이드
GRM188Z71E225KE43D(0603 (1608 metric) 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.
다음에 대한 상세 핀아웃 데이터 없음: GRM188Z71E225KE43D.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
GRM188Z71E225KE43D 적합 용도: 6 애플리케이션s: Microcontroller Power Rail Decoupling, LDO Output Smoothing, USB VBUS Line Capacitor, Audio Coupling Capacitor, IoT Sensor Node Power Filtering, Buck Converter Output Filter.
Microcontroller Power Rail Decoupling
The GRM188Z71E225KE43D's 2.2 uF capacitance and 0603 (1.60 × 0.80 mm) footprint make it ideal for bulk decoupling of 3.3 V and 5 V microcontroller power rails. Placed within 2 mm of each VDD pin, it provides low-impedance energy storage that suppresses transient current demands during GPIO switching and ADC sampling. Compared to 100 nF decoupling caps, this 2.2 uF value offers roughly 22× more charge reservoir for processor wake events. The 25 V rating gives ample headroom on 5 V rails, while the X7R dielectric's ±15% temperature stability is adequate for digital logic.
추천
LDO Output Smoothing
Placed at the output of low-dropout regulators such as the LM1117-3.3 or TPS7A4533, the GRM188Z71E225KE43D stabilizes the regulation loop and absorbs load-step transients. LDO datasheets typically specify 2.2 uF to 22 uF output capacitance for stability; the 2.2 uF value here is the minimum for many LDOs and offers the most compact footprint. The X7R dielectric's DC bias behavior must be considered: at 5 V bias the effective capacitance drops to roughly 60% of nominal. For ultra-low-noise analog rails, supplement with a smaller 100 nF X7R or C0G cap.
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USB VBUS Line Capacitor
On USB 2.0 and USB-C ports, the GRM188Z71E225KE43D serves as a VBUS bulk capacitor to comply with the 10 uF minimum bulk requirement (combined with a second 4.7 uF or 10 uF cap). The 25 V rating easily tolerates the 5 V VBUS nominal and 6 V transient surges during hot-plug events. The 0603 size fits within tight connector footprints. For USB-PD (Power Delivery) designs operating up to 20 V, a 50 V-rated X7R (such as Yageo CC0603KRX7R9BB225) is preferred over this 25 V part for adequate voltage margin.
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Audio Coupling Capacitor
In audio signal chains, the GRM188Z71E225KE43D can serve as an AC coupling capacitor at the output of audio op-amps or DAC line drivers feeding headphone amplifiers. The 2.2 uF value with 32 ohm headphones yields a -3 dB cutoff of approximately 2.3 kHz, suitable for full-range audio. However, C0G/NP0 dielectrics (e.g., GRM1885C1H151JA01D) are strongly preferred for audio coupling because X7R dielectric adds distortion (typically 0.1% THD) that can degrade audio quality. Use this part for power-rail bypass in audio circuits, not for signal-path coupling.
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IoT Sensor Node Power Filtering
Battery-powered IoT sensor nodes (BLE, LoRa, Zigbee) running from 3 V coin cells or Li-ion batteries use the GRM188Z71E225KE43D to filter noisy switching regulator outputs and provide bulk energy for radio transmit bursts. The 2.2 uF capacity handles typical 50-100 mA BLE transmit pulses with minimal droop. The 0603 size and 0.80 mm thickness allow placement under shields or in compact modules. Low-cost and broadly available, it is a go-to choice for high-volume IoT designs where every fraction of a cent matters.
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Buck Converter Output Filter
At the output of switching buck regulators (e.g., TPS54331, LM2596), the GRM188Z71E225KE43D forms part of the LC output filter, smoothing ripple current into a clean DC voltage. For a 2.2 uF output cap paired with a 4.7 uH inductor at 500 kHz switching frequency, output ripple is approximately 25 mV peak-to-peak. Multiple MLCCs in parallel are commonly used to achieve the required effective capacitance after DC bias loss. The 25 V rating supports outputs up to 12 V; for higher-voltage rails choose a 50 V X7R or 100 V X7R variant.
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추천 제품 요약
엔지니어링 참조 데이터: GRM188Z71E225KE43D — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | GRM188R71E225KE14D | CL10B225KP85PNC | CGA3E3X7R1E225K080AB | CC0603KRX7R9BB225 |
|---|---|---|---|---|---|
| Package | 0603 (1608 Metric) | 0603 (1608 Metric) - same | 0603 (1608 Metric) - same | 0603 (1608 Metric) - same | 0603 (1608 Metric) - same |
| Brand | Murata Manufacturing | Murata Manufacturing | Samsung Electro-Mechanics | TDK | YAGEO |
| Capacitance | 2.2 uF | 2.2 uF | 2.2 uF | 2.2 uF | 2.2 uF |
| Voltage Rating | 25 V | 25 V | 25 V | 25 V | 50 V (higher margin) |
| Dielectric | X7R | X7R | X7R | X7R | X7R |
| Thickness (Max) | 0.80 mm (Z7 profile) | 0.80 mm | 0.85 mm | 0.80 mm | 0.80 mm |
| Tolerance | ±10% | ±10% | ±10% | ±10% | ±10% |
| Automotive Grade (AEC-Q200) | No (commercial) | No (commercial) | No (commercial) | Yes (AEC-Q200) | No (commercial) |
| Approx. Unit Price (qty 1000) | $0.045 | $0.045 | $0.040 | $0.085 | $0.030 |
주요 차별점
- Z7 thickness profile optimized for compact designs (vs GRM188R71E225KE14D)
- Wide distributor availability across authorized channels (vs TDK CGA3E3X7R1E225K080AB)
- Lower unit cost than automotive-qualified equivalents (vs CGA3E3X7R1E225K080AB)
설계 노트
DC bias derating is the most common mistake with X7R 2.2 uF 0603 MLCCs. At 5 VDC bias, the effective capacitance may drop to 50-70% of the 25°C nominal value; at 12 VDC it can drop to 30%. Always consult the manufacturer's capacitance-vs-DC-bias curve and select a higher-voltage part (e.g., 50 V X7R) if the rated capacitance must be maintained at the operating voltage. The Murata GRM series datasheet catalog includes these curves for each part number.
Land pattern and trace geometry significantly impact ESL and therefore decoupling effectiveness. Use a 0.85 mm × 0.95 mm land pattern (IPC-7351 nominal for 0603), with vias placed outside the pads when possible. Connect the cap to the IC power pin via a short, wide trace (<2 mm, prefer direct via-in-pad placement) to minimize loop inductance. Keep the capacitor loop area as small as possible to maximize effective self-resonant frequency for high-frequency decoupling.
Mechanical flex cracking is a known reliability concern for large 0603 MLCCs like the 2.2 uF value used here. Avoid placing these capacitors near board edges, screw holes, or PCB bending regions. For products subject to vibration or drop testing, consider soft-termination parts (Murata GRJ series or equivalent) that absorb mechanical stress. Standard terminations are vulnerable to flexure-induced cracks that cause intermittent opens in the field.
Pair the GRM188Z71E225KE43D with a smaller 100 nF 0603 X7R cap placed closer to the IC pin for multi-stage decoupling. The 2.2 uF bulk cap handles low-frequency load transients (audio, RF bursts) while the 100 nF handles high-frequency digital switching noise. Maintain the smallest possible loop between IC, bulk cap, and 100 nF cap, with the 100 nF physically closer to the IC. This pairing achieves broadband impedance flattening across decades of frequency.
규정 준수 정보
RoHS and REACH compliant per Murata product page. Lead-free Ni-barrier/Sn-finish terminations suitable for Pb-free reflow up to 260°C. AEC-Q200 not specifically qualified for this part number - choose GCM188R71E225KE64D or TDK CGA3E3 for automotive applications.
