GRM31CR61A476KE15L - 47uF 10V X5R MLCC 1206 | Murata
MPN: GRM31CR61A476KE15L β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.32 | $0.32 |
| 10 | $0.24 | $2.40 |
| 100 | $0.18 | $18.00 |
| 500 | $0.14 | $70.00 |
| 1,000 | $0.11 | $110.00 |
GRM31CR61A476KE15L Overview
A ceramic capacitor (MLCC - Multi-Layer Ceramic Capacitor) is a passive component built from alternating layers of ceramic dielectric and metal electrodes. The X5R dielectric classification means the part meets EIA-198 temperature characteristics: capacitance variation is Β±15% across the operating temperature range of -55C to +85C. MLCCs sit in the passive component hierarchy as: MLCC -> ceramic capacitor -> capacitor -> passive component. They are ubiquitous in modern electronics for decoupling, filtering, bypassing, and energy storage.
Key features include 47 uF nominal capacitance in a compact 1206 footprint (3.2 mm x 1.6 mm), 10 V DC rated voltage, Β±10% tolerance, and the X5R temperature characteristic. The 1206 case size provides higher volumetric efficiency than smaller 0805 or 0603 parts while remaining compatible with standard SMT reflow processes. The L suffix indicates 7-inch tape and reel packaging per EIA-481, making it suitable for high-speed automated pick-and-place assembly.
From a technical standpoint, this part uses a high-capacitance X5R dielectric stack optimized for moderate voltage applications. The X5R designation offers better volumetric efficiency than X7R but with reduced temperature stability; designers should verify that capacitance variation across operating temperature is acceptable for their application. For audio or RF circuits where temperature stability matters more than bulk capacitance, X7R or C0G/NP0 alternatives would be preferable.
Typical applications include smartphone PMIC decoupling, tablet and wearable device power rails, USB-C connector bypass, industrial sensor module power conditioning, IoT endpoint devices, and any general-purpose 10 V or lower rail filtering or decoupling. The wide 4x ratio of available voltage headroom at 10 V makes it suitable for 3.3 V and 5 V rail decoupling where DC bias derating must be considered.
When designing with this part, account for DC bias derating - the effective capacitance at the rated 10 V can drop by 50% or more versus the 1 Vrms measurement condition. For high-ripple applications, evaluate self-heating and verify ripple current ratings. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for GRM31CR61A476KE15L β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
GRM31CR61A476KE15K
β Drop-Inπ Reference alternative (not in catalog)
GRM31CR61A476ME15L
β Drop-Inπ Reference alternative (not in catalog)
GRM31CR71A476KE15L
β Drop-Inπ Reference alternative (not in catalog)
LMK316ABJ476ML-T
β Drop-Inπ Reference alternative (not in catalog)
CL31A476KQHNNNE
β Drop-Inπ Reference alternative (not in catalog)
CC1206KKX5R8BB476
β Drop-Inπ Reference alternative (not in catalog)
CGA5L1X5R1A476K
β Drop-Inπ Reference alternative (not in catalog)
GRM31CR61A476KE15L Maximum Ratings & Electrical Characteristics
| Capacitance | 47 uF |
| Capacitance Tolerance | Β±10% |
| Voltage Rating (DC) | 10 V |
| Dielectric Characteristic | X5R |
| Package / Case | 1206 (3216 Metric) |
| Package Size (Imperial) | 1206 |
| Package Size (Metric) | 3216 |
| Length | 3.2 mm |
| Width | 1.6 mm |
| Mounting Type | Surface Mount (SMT) |
| Operating Temperature | -55C to +85C |
| Temperature Coefficient | Β±15% (X5R, EIA-198) |
| Termination Style | Tin (Sn) |
| Packaging | Tape & Reel (7 inch, L suffix) |
| MSL Level | 1 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
GRM31CR61A476KE15L 3216 Pin Configuration Guide
Pin configuration for GRM31CR61A476KE15L (3216 package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for GRM31CR61A476KE15L.
Refer to the datasheet for full pin configuration.
Typical Applications
GRM31CR61A476KE15L is suitable for 6 applications: Smartphone PMIC Decoupling, USB-C Connector Bypass, Industrial Sensor Module Power Conditioning, IoT Endpoint Decoupling, Tablet Power Rail Filtering, Wearable Device Power Rails.
Smartphone PMIC Decoupling
The GRM31CR61A476KE15L is well suited as a bulk decoupling capacitor near smartphone PMIC power rails. Its 47 uF capacitance provides local energy storage for high-frequency load steps (sub-microsecond transients from display refresh, modem PA ramp, and SoC core switching). The 1206 case fits comfortably beneath most PMIC placements, and the 10 V rating leaves ample margin for 3.8 V Li-ion and 5 V boost rails. Compared to tantalum alternatives, this X5R MLCC has lower ESR and no polarity concerns, simplifying PCB layout and reducing BOM cost.
Recommended
USB-C Connector Bypass
The GRM31CR61A476KE15L is an effective choice for USB-C VBUS and CC line bypass in consumer devices. USB-C carries up to 5 V at 3 A (15 W) and demands robust local capacitance to absorb hot-plug transients and switching converter ripple. The 47 uF bulk at 10 V rating handles VBUS rail ripple and supports inrush during cable attach events. Place the part as close as possible to the connector's VBUS pin with a 0.1 uF X7R high-frequency bypass in parallel for optimal impedance across the frequency spectrum.
Recommended
Industrial Sensor Module Power Conditioning
For 24V industrial sensor modules with on-board 5 V or 3.3 V regulators, the GRM31CR61A476KE15L provides output-side bulk capacitance on the post-regulator rail. The X5R dielectric is adequate for sensor modules operating from -40C to +85C industrial range, and the 1206 case provides good thermal mass. This part is particularly useful for ADC reference rail filtering where the sensor's measurement accuracy benefits from low-noise bulk capacitance. Engineers should derate by 30-40% for the 5 V bias condition.
Recommended
IoT Endpoint Decoupling
The GRM31CR61A476KE15L is well matched to IoT endpoint devices powered by 3.3 V or 5 V rails where wireless SoCs (Wi-Fi, BLE, LoRa) demand local bulk decoupling. The 47 uF capacitance handles peak current bursts during radio transmission that can reach 200-300 mA for tens of microseconds. The 1206 size fits on small sensor node PCBs (typically 30 x 30 mm or larger) without crowding the antenna keepout area. Pair with a smaller 0402 or 0603 X7R for high-frequency decoupling at the SoC supply pins.
Recommended
Tablet Power Rail Filtering
The GRM31CR61A476KE15L serves as a bulk filter capacitor on tablet main logic rails including 1.8 V, 3.3 V, and 5 V power domains. Tablet designs typically require multiple 47 uF capacitors distributed across the PCB near PMIC outputs, display driver supply pins, and audio codec AVDD pins. The 1206 case size allows pick-and-place compatibility with most tablet PCBA assembly lines. X5R dielectric is acceptable for tablet consumer-grade operating temperature (0C to +70C ambient).
Recommended
Wearable Device Power Rails
The GRM31CR61A476KE15L suits wearable device designs (smartwatches, fitness bands) that operate from 3.7 V Li-ion battery rails. While the 1206 case is large for ultra-compact wearables, it is ideal for larger smartwatch form factors (45 mm+ displays) where space allows for higher capacitance density. The 47 uF bulk handles Bluetooth radio transmit bursts and display refresh current spikes. Designers should consider smaller 0805 or 0603 alternatives for ultra-thin wearables with strict z-height constraints.
Recommended
Recommended Products Summary
Engineering reference data for GRM31CR61A476KE15L β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | GRM31CR61A476KE15K | GRM31CR61A476ME15L | GRM31CR71A476KE15L | LMK316ABJ476ML-T | CL31A476KQHNNNE |
|---|---|---|---|---|---|---|
| Brand | Murata | Murata | Murata | Murata | Taiyo Yuden | Samsung Electro-Mechanics |
| Package | 1206 (3216 Metric) | 1206 (3216 Metric) | 1206 (3216 Metric) | 1206 (3216 Metric) | 1206 (3216 Metric) | 1206 (3216 Metric) |
| Capacitance | 47 uF | 47 uF | 47 uF | 47 uF | 47 uF | 47 uF |
| Voltage Rating | 10 V | 10 V | 10 V | 10 V | 10 V | 10 V |
| Dielectric | X5R | X5R | X5R | X7R | X5R | X5R |
| Capacitance Tolerance | Β±10% | Β±10% | Β±20% | Β±10% | Β±20% | Β±10% |
| Operating Temperature Range | -55C to +85C | -55C to +85C | -55C to +85C | -55C to +125C | -55C to +85C | -55C to +85C |
| Packaging | 7-inch Tape & Reel (L suffix) | 13-inch Tape & Reel (K suffix) | 7-inch Tape & Reel (L suffix) | 7-inch Tape & Reel (L suffix) | Tape & Reel | Tape & Reel |
| RoHS Compliance | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Highest capacitance density in 1206 case at 10 V X5R from a Tier-1 manufacturer (vs GRM21BR60J476ME15L (0805 6.3V variant))
- Wide operating temperature for consumer and industrial equipment (vs Y5V dielectric alternatives)
- Dual-sourcing flexibility across major capacitor manufacturers (vs Single-source Murata-only strategy)
Design Notes
DC bias derating is the single most common design pitfall with the GRM31CR61A476KE15L. The X5R dielectric loses significant capacitance as DC voltage increases; at the full 10 V rated bias, effective capacitance can drop to 40-50% of the nominal 47 uF. At 5 V bias expect 60-70% retention. Engineers must consult Murata's DC bias characteristic curves in the datasheet and design with the derated value rather than the nominal. For applications requiring full 47 uF across the operating voltage, consider paralleling two 22 uF 1206 parts or selecting a 16 V or 25 V rated part.
Place the GRM31CR61A476KE15L as close as possible to the power pin it is decoupling, keeping the loop area minimal to reduce parasitic inductance. Use wide PCB traces (at least 0.3 mm for typical 1-3 A applications) and multiple vias to inner power/ground planes. For high-frequency decoupling above the MLCC's self-resonant frequency (typically 1-5 MHz for 47 uF in 1206), pair with a smaller 0.1 uF or 1 uF X7R MLCC placed even closer to the IC. Avoid routing noisy signal traces between the capacitor and its target IC pin.
Estimated: The GRM31CR61A476KE15L has a self-heating characteristic driven by AC ripple current and dielectric losses. While the 1206 case provides reasonable thermal dissipation through its PCB land pads, sustained ripple currents above 1 Arms in high-frequency switching applications can cause measurable temperature rise. For high-ripple applications such as input filters on switching converters, calculate the I^2R losses and verify that the resulting temperature rise stays below 20C. Mounting on thermal-via arrays beneath the land pads improves heat dissipation to inner ground planes.
Compliance Information
RoHS and REACH compliant per Murata product specifications. Halogen-free per Murata GRM series standard. Not AEC-Q100 qualified - this is a consumer/industrial grade MLCC. MSL 1 per JEDEC J-STD-020.
