CL31B106KBHNNNE - 10µF 50V X7R 1206 MLCC | Samsung Electro-Mechanics
MPN: CL31B106KBHNNNE ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.23 | $0.23 |
| 10 | $0.21 | $2.10 |
| 100 | $0.18 | $18.00 |
| 500 | $0.16 | $80.00 |
| 1,000 | $0.14 | $140.00 |
| 4,000 | $0.12 | $480.00 |
CL31B106KBHNNNE Overview
An MLCC (Multilayer Ceramic Capacitor) is a passive component constructed from alternating layers of ceramic dielectric and metal electrodes, terminated with nickel-barrier and tin outer layers for solderability. Within the broader capacitor taxonomy, MLCCs sit alongside aluminum electrolytic, tantalum, and film capacitors, offering the lowest ESL/ESR and best high-frequency behavior but with the trade-off of DC-bias capacitance loss and piezoelectric effects. The X7R dielectric is a Class-II (mid-k) formulation rated for -55°C to +125°C with ±15% capacitance change across the operating range, the workhorse choice for general-purpose decoupling, filtering, and bulk energy storage where stability is acceptable.
The key features that distinguish CL31B106KBHNNNE include its high 10 µF capacitance in a compact 1206 footprint - unusually large for the case size - and the ±10% (K) tolerance code indicating standard industrial precision. The 50V rating provides generous headroom for 12V, 24V, and 48V power-rail bypass applications. Samsung's qualification to AEC-Q200 makes this part suitable for automotive electronics, while the standard X7R formulation supports everything from USB-PD rails to industrial motor control.
The X7R dielectric exhibits noticeable DC-bias derating; at 50V applied the effective capacitance can drop to roughly 20-30% of nominal, so designers should de-rate when targeting high-voltage rails. Compared to tantalum alternatives, the X7R MLCC offers higher ripple current handling, no polarity sensitivity, and superior high-frequency performance, at the cost of audible noise under mechanical stress (piezoelectric effect).
Typical applications include 48V bus decoupling in telecom hardware, bulk bypass for USB-PD controllers, motor-driver snubbers, and general-purpose power-rail filtering. The 1206 footprint provides a balanced trade-off between board area and current-handling, while the wide voltage rating supports industrial and automotive environments where 12V and 24V rails are common.
For PCB layout, place the capacitor as close as possible to the IC supply pin, use wide power traces, and place multiple capacitors in parallel when the application demands both high capacitance and low impedance across a wide frequency range. The 1206 footprint tolerates standard reflow profiles up to 260°C and is compatible with both leaded and lead-free solder systems.
This page synthesizes distributor pricing, cross-brand MLCC equivalents (Murata, TDK), and practical derating guidance not consolidated in the manufacturer datasheet.
Drop-in alternatives for CL31B106KBHNNNE — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
CL31B106KBHNNN#
✅ Drop-In📋 Reference alternative (not in catalog)
CL31B106KOHNNNE
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
GRM31CR71H106KA12L
✅ Drop-In📋 Reference alternative (not in catalog)
C3216X7R1H106K160AC
✅ Drop-In📋 Reference alternative (not in catalog)
UMK316AB7106KL-T
✅ Drop-In📋 Reference alternative (not in catalog)
CL31B106KBHNNNE Maximum Ratings & Electrical Characteristics
| Capacitance | 10 µF |
| Capacitance Tolerance | ±10% |
| Voltage Rating (DC) | 50 V |
| Dielectric | X7R (EIA Class II) |
| Package / Case | 1206 (3216 Metric) |
| Length | 3.20 mm |
| Width | 1.60 mm |
| Operating Temperature | -55°C to +125°C |
| Temperature Coefficient | ±15% over -55°C to +125°C |
| Mounting Type | Surface Mount |
| Termination Style | Pad SMD |
| Packaging | Tape & Reel |
| Maximum Operating Temperature | 125°C |
| RoHS Status | Compliant |
| Automotive Qualification | AEC-Q200 |
| Tolerance Code | K |
| Rated Voltage Code | H |
CL31B106KBHNNNE Pin Configuration
| Pin 1 | Terminal A — Solder terminal (anode equivalent) |
| Pin 2 | Terminal B — Solder terminal (cathode equivalent) |
Typical Applications
CL31B106KBHNNNE is suitable for 7 applications: 48V Telecom & Industrial Bus Decoupling, USB-PD Controller Bulk Capacitor, Automotive 12V/24V Rail Filtering, Motor Driver Snubber & Bypass, DC-DC Converter Output Filter, LED Driver Input Bypass, Battery Management System Filtering.
48V Telecom & Industrial Bus Decoupling
The CL31B106KBHNNNE's 10 µF bulk capacitance and 50V rating fit telecom 48V rails with >2× voltage headroom above the 24V industrial bus. Per the Samsung MLCC datasheet, the X7R dielectric maintains ±15% capacitance across -55°C to +125°C, ensuring stable bulk energy storage in base-station power modules. Place the 1206 capacitor as close as possible to the DC-DC converter input with wide power traces; the 1206 case handles the ripple current better than 0805 at this capacitance value.
Recommended
USB-PD Controller Bulk Capacitor
USB Power Delivery controllers need 10 µF bulk capacitance on the VBUS pin to absorb load transients during PD negotiation. The CL31B106KBHNNNE's 50V rating covers the 20V PD profile with comfortable margin, and the 1206 case provides the energy storage density that smaller 0805 parts cannot match. Per the X7R derating curve, the effective capacitance drops under DC bias, so designers should parallel two or three capacitors when targeting full 10 µF at 20V VBUS.
Recommended
Automotive 12V/24V Rail Filtering
The CL31B106KBHNNNE's AEC-Q200 qualification makes it ideal for automotive body-electronics and infotainment power-rail filtering. The 50V rating handles the 24V commercial-vehicle bus with margin for load-dump transients up to 35V, while the X7R dielectric operates from -55°C to +125°C for underhood environments. Per the Samsung MLCC catalog, the part is qualified to automotive reliability standards for engine-ECU and sensor-module applications.
Recommended
Motor Driver Snubber & Bypass
Brushless DC motor drivers generate high-frequency switching noise on the motor supply rail; the CL31B106KBHNNNE provides bulk bypass capacitance close to the driver supply pins. The 10 µF / 50V rating handles 24V industrial motor supplies, and the 1206 footprint absorbs the energy from back-EMF events. According to the Samsung MLCC datasheet, the X7R formulation delivers stable capacitance across motor-driver operating temperatures.
Recommended
DC-DC Converter Output Filter
The CL31B106KBHNNNE serves as an output bulk capacitor for point-of-load DC-DC converters delivering 3.3V, 5V, or 12V rails. The 10 µF / 50V / X7R combination provides energy storage for transient load steps while maintaining ESR low enough for high-frequency converter stability. Per MLCC filter-design guidance, parallel the ceramic bulk with a smaller 0.1 µF ceramic to cover both bulk and high-frequency decoupling roles.
Recommended
LED Driver Input Bypass
High-brightness LED drivers need bulk input capacitance to handle the rectified mains ripple; the CL31B106KBHNNNE's 50V rating supports 24V LED-lighting rails with margin. The 1206 footprint delivers 10 µF in a small board area, ideal for compact LED fixtures and architectural lighting. Per the X7R temperature characteristic, the part maintains stable capacitance across the operating temperature range of indoor and outdoor luminaires.
Recommended
Battery Management System Filtering
Multi-cell battery management systems (BMS) require bulk bypass on each cell-sense rail; the CL31B106KBHNNNE provides 10 µF / 50V filtering for cell voltages up to 4.2V per Li-ion cell. The AEC-Q200 automotive grade supports EV battery packs and energy-storage systems. Per the Samsung MLCC datasheet, the X7R dielectric remains stable across the BMS operating temperature range, ensuring accurate cell monitoring.
Recommended
Recommended Products Summary
Engineering reference data for CL31B106KBHNNNE — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | CL31B106KBHNNN# | CL31B106KOHNNNE | GRM31CR71H106KA12L | C3216X7R1H106K160AC | UMK316AB7106KL-T |
|---|---|---|---|---|---|---|
| Brand | Samsung Electro-Mechanics | Samsung Electro-Mechanics | Samsung Electro-Mechanics | Murata Manufacturing | TDK | Taiyo Yuden |
| Package | 1206 (3216 Metric) | 1206 (3216 Metric) | 1206 (3216 Metric) | 1206 (3216 Metric) | 1206 (3216 Metric) | 1206 (3216 Metric) |
| Capacitance | 10 µF | 10 µF | 10 µF | 10 µF | 10 µF | 10 µF |
| Voltage Rating | 50 V | 50 V | 16 V | 50 V | 50 V | 50 V |
| Dielectric | X7R | X7R | X7R | X7R | X7R | X7R |
| Tolerance | ±10% | ±10% | ±10% | ±10% | ±10% | ±10% |
| 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 |
| Automotive Grade (AEC-Q200) | Yes | Yes | Yes | Yes | Yes | Yes |
| Length × Width | 3.20 × 1.60 mm | 3.20 × 1.60 mm | 3.20 × 1.60 mm | 3.20 × 1.60 mm | 3.20 × 1.60 mm | 3.20 × 1.60 mm |
Key Differentiators
- Samsung MLCC with AEC-Q200 automotive qualification (vs GRM31CR71H106KA12L)
- 50V rating provides wide margin over 24V industrial bus (vs CL31B106KOHNNNE)
- Industry-standard 1206 footprint - widest cross-brand compatibility (vs C3216X7R1H106K160AC)
Design Notes
Do not underestimate X7R DC-bias derating. At 50V applied, effective capacitance of a 10 µF X7R MLCC can drop to 2-3 µF. For bulk bypass applications, either de-rate the design (target 30-50% of nominal at worst-case DC bias) or parallel multiple capacitors. Always check the manufacturer's DC-bias curves before committing to a single capacitor for a high-voltage rail.
Place the CL31B106KBHNNNE as close as possible to the IC supply pin to minimize parasitic inductance. Use wide power traces (≥0.5 mm) and follow the standard 1206 land pattern per IPC-7351 (pad dimensions approximately 1.6 mm × 1.0 mm). For high-current applications, place multiple capacitors in parallel and stitch vias to inner power/ground planes to reduce spreading inductance.
MLCCs crack under thermal stress if heated unevenly - especially large 1206 parts. Follow the reflow profile in the Samsung datasheet: peak temperature ≤260°C, with controlled preheat and cooling ramps. Avoid hand-soldering large ceramic capacitors with a hot plate, as the thermal gradient can crack the dielectric. For prototype work, use a hot-air station with preheat.
Avoid placing the CL31B106KBHNNNE near board edges or screw holes where mechanical stress is concentrated. MLCCs are brittle and can crack under PCB flexure. Per IPC-7351 and Samsung application guidance, keep ceramic capacitors away from high-stress areas, and consider flex-tolerant termination (X7R with soft termination) for applications with significant thermal cycling or mechanical vibration.
Compliance Information
RoHS compliant per Samsung MLCC product page. AEC-Q200 automotive qualified (passive component standard; AEC-Q100 is for ICs and is not applicable). Lead-free and halogen-free terminations. Samsung Electro-Mechanics is conflict-minerals compliant per its annual CMRT filings.
