GRM32ER71H475KA88L - 4.7µF 50V X7R MLCC 1210 | Murata
부품 번호: GRM32ER71H475KA88L ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0.78 | $0.78 |
| 10 | $0.62 | $6.20 |
| 100 | $0.48 | $48.00 |
| 500 | $0.36 | $180.00 |
| 1,000 | $0.27 | $270.00 |
| 4,000 | $0.21 | $840.00 |
GRM32ER71H475KA88L 개요
An MLCC (Multilayer Ceramic Capacitor) is a passive component built from alternating ceramic dielectric layers and metal electrode layers, screen-printed and sintered into a monolithic block. MLCCs are the most widely manufactured capacitor type in the world, used for decoupling, filtering, bypassing, and energy storage. Within the MLCC family, X7R is a Class II dielectric characterized by a stable capacitance over -55°C to +125°C (±15%) and moderate to high volumetric efficiency compared to C0G/NP0 (Class I) dielectrics, which offer tighter stability but lower capacitance density.
Key features of the GRM32ER71H475KA88L include a rated DC working voltage of 50V, ±10% capacitance tolerance, X7R temperature characteristic, Ni-barrier + Sn-plated termination for lead-free reflow, and a standard 1210 (3.2mm x 2.5mm) footprint. The part is RoHS-compliant and suitable for general-purpose DC blocking, decoupling, and bypass functions in commercial-grade designs.
From an electrical standpoint, the 50V rating provides substantial headroom above typical 3.3V, 5V, 12V, and 24V rails, and the X7R dielectric typically delivers <0.025 dissipation factor and insulation resistance in the GΩ range at 25°C. The 1210 case size is large enough to provide robust mechanical strength and lower ESR than smaller 0805 parts.
Typical applications include power-rail decoupling on DC-DC converters and LDO outputs, bulk bypass on FPGA/MCU power pins, audio coupling stages, and general signal-line filtering. The 4.7µF value is a common decoupling point that pairs well with smaller 0.1µF capacitors for broadband noise suppression.
When designing with this part, note that X7R capacitors exhibit significant capacitance loss with applied DC bias (often 30–50% derating near rated voltage), and AC ripple current causes self-heating. Verify effective capacitance in-circuit under your actual operating voltage.
This page combines distributor pricing, drop-in alternatives, and practical design notes not found on a single manufacturer datasheet.
드롭인 대체품: GRM32ER71H475KA88L — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
GCM32ER71H475KA55L
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
GRM32ER71H475KA88K
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
CGA6P3X7R1H475K250AB
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
CL32B475KBUYNNE
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
C1210C475K5RAC7800
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
GRM32ER71H475KE11L
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
HMK432C7475KM-T
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
GRM32ER71H475KA88L 최대 정격 & 전기적 특성
| Capacitance | 4.7 µF |
| Capacitance Tolerance | ±10% |
| Rated DC Voltage | 50 V |
| Dielectric (Temperature Characteristic) | X7R (EIA) |
| 패키지 / 케이스 | 1210 (3225 Metric) |
| Length | 3.2 mm |
| Width | 2.5 mm |
| 실장 유형 | Surface Mount |
| Termination Style | SMD/SMT (Ni barrier + Sn plating) |
| 동작 온도 | -55°C to +125°C |
| Temperature Coefficient Code | EIA X7R |
| RoHS 상태 | Compliant |
| Lead-Free | Yes |
| Packaging | Tape & Reel (7-inch reel, "L" suffix) |
| Series | GRM (Murata general-purpose MLCC) |
GRM32ER71H475KA88L 핀 구성
| 핀 1 | Term-A — Solder termination (one side of the MLCC) |
| 핀 2 | Term-B — Solder termination (opposite side of the MLCC) |
일반적인 애플리케이션
GRM32ER71H475KA88L 적합 용도: 6 애플리케이션s: DC-DC Converter Output Decoupling, LDO Output Bypass / Bulk Capacitor, FPGA / MCU Power Pin Decoupling, Audio Signal Coupling / Bypass, Industrial 24V Bus Decoupling, USB / HDMI Port Bypass.
DC-DC Converter Output Decoupling
The GRM32ER71H475KA88L is widely used as output bulk capacitance on DC-DC converter rails. Its 4.7µF capacitance and 50V rating give it substantial headroom above typical 3.3V, 5V, and 12V rails, and the X7R dielectric delivers stable capacitance across the operating temperature range. The 1210 case size provides lower ESR than smaller 0805 or 0603 parts, which is critical for handling load-transient current steps in buck and boost converters. Placed directly at the converter output pin, it works in parallel with smaller 0.1µF MLCCs to absorb high-frequency switching ripple. Designers should check the DC-bias derating curve, since X7R capacitance drops noticeably near the rated voltage.
추천
LDO Output Bypass / Bulk Capacitor
On low-dropout (LDO) regulator outputs, the GRM32ER71H475KA88L serves as bulk capacitance to maintain regulation during load transients. The 4.7µF value exceeds the typical 1µF minimum required by many LDOs, providing extra margin for PSRR and transient response. With its 50V rating, it can be used on 5V, 12V, and even 24V industrial rails with significant voltage headroom. The X7R dielectric ensures stable capacitance across temperature, so LDO stability is maintained from -55°C to +125°C. Place the cap directly at the LDO output pin to minimize parasitic loop inductance and maximize high-frequency noise suppression.
추천
FPGA / MCU Power Pin Decoupling
FPGA and MCU power pins demand localized bulk decoupling to handle switching current spikes. The GRM32ER71H475KA88L is well-suited for this role, providing 4.7µF of bulk capacitance in a 1210 footprint that can be placed directly adjacent to the IC power pins. Its 50V rating comfortably covers the 1.0V to 3.3V core rails and 1.8V to 5V I/O rails typical of modern FPGAs. Designers typically pair this part with smaller 0.1µF and 0.01µF capacitors in parallel to cover broadband decoupling. The X7R dielectric's stability across temperature helps ensure reliable operation in industrial temperature ranges.
추천
Audio Signal Coupling / Bypass
In audio amplifier and codec circuits, the GRM32ER71H475KA88L serves as a coupling or bypass capacitor on supply rails feeding audio DACs, ADCs, and op-amps. The X7R dielectric's moderate loss is acceptable for non-critical audio coupling positions, while the 4.7µF value provides the necessary low-frequency response for AC-coupling between op-amp stages. The 50V rating allows use on ±15V analog rails and 12V audio power rails with substantial headroom. For premium audio paths where C0G/NP0 stability is preferred, this part is best confined to power-rail bypass rather than direct signal-path coupling.
추천
Industrial 24V Bus Decoupling
On industrial 24V bus rails, the GRM32ER71H475KA88L provides reliable bulk decoupling with substantial voltage derating. At 24V nominal, the part operates at 48% of its 50V rating, leaving significant margin against transient spikes from inductive loads and motor back-EMF. The X7R dielectric's -55°C to +125°C operating range handles industrial temperature extremes without capacitance shift. The 1210 case size offers robust mechanical strength for high-vibration factory environments. Combine with TVS diodes for full transient protection on 24V industrial I/O and PLC systems.
추천
USB / HDMI Port Bypass
USB and HDMI port power pins require bypass capacitance to suppress EMI and maintain signal integrity. The GRM32ER71H475KA88L serves this role effectively with its 4.7µF capacitance and 50V rating, providing bulk energy storage on the 5V USB VBUS rail. The 1210 footprint fits easily behind USB Type-A and HDMI connectors on standard PCB layouts. The X7R dielectric's ESR characteristics help dampen high-frequency noise from digital switching transients. Place the cap as close to the connector power pin as possible, ideally within 5mm, to maximize bypass effectiveness.
추천
추천 제품 요약
엔지니어링 참조 데이터: GRM32ER71H475KA88L — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | GCM32ER71H475KA55L | GRM32ER71H475KA88K | GRM32ER71H475KE11L | CGA6P3X7R1H475K250AB | CL32B475KBUYNNE | C1210C475K5RAC7800 | HMK432C7475KM-T |
|---|---|---|---|---|---|---|---|---|
| Brand | Murata Manufacturing | Murata Manufacturing | Murata Manufacturing | Murata Manufacturing | TDK | Samsung Electro-Mechanics | KEMET | Taiyo Yuden |
| Package | 1210 (3225 Metric) | 1210 (3225 Metric) - same | 1210 (3225 Metric) - same | 1210 (3225 Metric) - same | 1210 (3225 Metric) - same | 1210 (3225 Metric) - same | 1210 (3225 Metric) - same | 1210 (3225 Metric) - same |
| Capacitance | 4.7 µF | 4.7 µF | 4.7 µF | 4.7 µF | 4.7 µF | 4.7 µF | 4.7 µF | 4.7 µF |
| Rated DC Voltage | 50 V | 50 V | 50 V | 50 V | 50 V | 50 V | 50 V | 50 V |
| Capacitance Tolerance | ±10% | ±10% | ±10% | ±10% | ±10% | ±10% | ±10% | ±10% |
| Dielectric | X7R | X7R | X7R | X7R | X7R | X7R | X7R | X7R |
| Automotive Grade (AEC-Q200) | No (commercial) | Yes (AEC-Q200) | No (commercial) | No (commercial) | Yes (AEC-Q200) | No (commercial) | No (commercial) | No (commercial) |
| Operating Temperature | -55°C to +125°C | -55°C to +125°C | -55°C to +125°C | -55°C to +125°C | -55°C to +125°C | -55°C to +125°C | -55°C to +125°C | -55°C to +125°C |
| Mounting Type | Surface Mount (SMD) | Surface Mount (SMD) | Surface Mount (SMD) | Surface Mount (SMD) | Surface Mount (SMD) | Surface Mount (SMD) | Surface Mount (SMD) | Surface Mount (SMD) |
주요 차별점
- Standard 50V rating with substantial 24V-rail headroom (vs GRM32ER71H106MA12L)
- Commercial-grade cost vs. AEC-Q200 cost premium (vs GCM32ER71H475KA55L)
- Multi-source availability across 7+ vendors (vs single-source equivalents)
설계 노트
X7R MLCCs like the GRM32ER71H475KA88L exhibit significant DC-bias capacitance loss. At 50 V rated voltage the effective capacitance may drop by 30–50% from the 1 Vrms measurement. In decoupling applications where this matters (timing circuits, precision filters), check the bias curve in the Murata datasheet and either de-rate the operating voltage or select a higher-rated part. Operating at ≤80% of rated voltage is a common reliability guideline.
Place the GRM32ER71H475KA88L as close as physically possible to the IC power pin it is decoupling. Use short, wide traces (or direct pad-to-pad vias) to minimize parasitic inductance. The 1210 case size is large enough that hand-rework is feasible; pair it with a 0.1 µF 0603 cap in parallel for high-frequency noise suppression. Avoid routing noisy digital traces over or near the capacitor's land pads.
Estimated: the GRM32ER71H475KA88L has a typical self-heating of <1°C per watt of ripple current dissipation in the 1210 case size. For AC ripple currents above 1 A rms, check the ripple current rating in the Murata datasheet to ensure self-heating stays below +20°C. For high-ripple applications (snubber, resonant converters), use multiple capacitors in parallel or a larger case size (e.g., 1812 or 2220).
규정 준수 정보
RoHS compliant per Murata product information portal. Termination is Ni-barrier + Sn-plated (lead-free). The part is commercial-grade; for AEC-Q200 automotive qualification, choose GCM32ER71H475KA55L instead.
