+86 075582561136
Upload BOM
TDK CGA5L1X7R1V106K160AE: An Automotive 1206 10μF/35V MLCC with Soft Termination
10/29/2026 1:34:25 AM
TDK CGA5L1X7R1V106K160AE: An Automotive 1206 10μF/35V MLCC with Soft Termination
1. Positioning
The CGA5L1X7R1V106K160AE is an automotive-grade multilayer ceramic capacitor (MLCC) from TDK Corporation's CGA series. It provides 10μF of capacitance in a 1206 (3216 metric) package, rated at 35V DC, with X7R dielectric, ±10% tolerance, and AEC-Q200 qualification for automotive and other reliability-critical applications.
The device's most distinctive feature is the Soft Termination indicated by the "AE" suffix. In a conventional MLCC, the terminal electrodes are rigidly bonded to the ceramic body. When the PCB flexes or expands under thermal cycling, the resulting mechanical stress is transmitted almost undiminished to the brittle ceramic dielectric, potentially causing micro-cracks or short-circuit failures. Soft termination introduces a conductive resin layer between the terminal and the ceramic body, absorbing and buffering this stress and significantly improving reliability under harsh mechanical and thermal environments.
2. Why Soft Termination Matters
In automotive electronics, reliability often outweighs raw electrical performance. Boards in engine bays, chassis controllers, and battery management systems endure repeated thermal cycling from -55°C to +125°C, vibration, and assembly-induced mechanical stress. A 1206-sized 10μF/35V MLCC, with its relatively thick ceramic body and numerous dielectric layers, is inherently more susceptible to stress cracking than smaller, lower-capacitance parts. Soft termination directly addresses this vulnerability.
The terminals use a matte tin over nickel finish and are compatible with both reflow and wave soldering. The 2000-piece, 180mm reel packaging suits the automated pick-and-place feeding required for high-volume automotive production.
3. Electrical Characteristics
The X7R dielectric guarantees ±15% capacitance variation from -55°C to +125°C, with a maximum dissipation factor of 5% and minimum insulation resistance of 50MΩ. The 35V rating provides ample margin for 12V or 24V automotive rails, particularly where load-dump transients may momentarily push the rail toward the rated voltage.
As with all Class 2 dielectrics, the effective capacitance varies with DC bias and AC signal amplitude. At 12V or 24V operating points, designers should consult TDK's DC-bias curves to confirm that effective capacitance meets the filtering or decoupling requirement, rather than relying solely on the nominal 10μF.
4. Key Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | TDK Corporation |
| Series | CGA (Automotive Grade) |
| Capacitance | 10 μF ±10% |
| Voltage Rating | 35 V DC |
| Dielectric | X7R (±15%) |
| Package / Size | 1206 (3216 Metric) / 3.2 × 1.6 × 1.6 mm |
| Operating Temperature | -55°C to +125°C |
| Termination | Soft Termination (conductive resin layer) |
| Terminal Finish | Matte Tin over Nickel |
| Dissipation Factor (max) | 5% |
| Insulation Resistance (min) | 50 MΩ |
| Soldering Method | Reflow / Wave |
| Automotive Qualification | AEC-Q200 |
| Packaging | 180mm reel, 2000 pcs/reel |
5. Questions and Answers
Q: What is the fundamental difference between Soft Termination and standard termination in an MLCC?
A: In a standard MLCC, the terminal electrode is rigidly bonded to the ceramic body, so external mechanical stress is transmitted almost undiminished to the dielectric. Soft termination inserts a conductive resin layer between them. The resin has a much lower elastic modulus than ceramic or solder, allowing it to deform and absorb stress from board bending and thermal expansion. This significantly reduces the crack incidence rate in bend tests and temperature cycling compared with standard parts.
Q: Is the 35V rating excessive for a 12V automotive system?
A: Not at all. Automotive 12V systems can experience load-dump transients that momentarily push the rail toward 35V or higher. The 35V rating provides the necessary safety margin. Additionally, a higher voltage rating typically means less DC-bias derating at the 12V operating point, helping preserve effective capacitance.
Q: Is this capacitor suitable for automotive power-rail decoupling?
A: Yes, with appropriate positioning. A 10μF/35V/1206 part often serves as bulk decoupling or intermediate energy storage at an ECU power input, used in parallel with smaller capacitors such as 100nF to cover low-to-mid-frequency decoupling needs. The soft termination's mechanical reliability advantage is particularly valuable in locations with intense vibration and thermal cycling, such as engine-bay-mounted modules.
Q: What does AEC-Q200 qualification mean for this MLCC?
A: AEC-Q200 is the stress-test qualification standard for passive components issued by the Automotive Electronics Council. Passing it means the device has met specified performance criteria after a series of accelerated stress tests including temperature cycling, humidity bias, high-temperature storage, mechanical shock, and vibration. For automotive designs, AEC-Q200 is one of the baseline requirements for a component to enter a vehicle's bill of materials.
6. Typical Applications
The CGA5L1X7R1V106K160AE targets automotive electronics: power filtering in engine control units (ECUs), decoupling in battery management system (BMS) sampling circuits, output stabilization in body control modules, supply bypass for ADAS sensors, and power-rail filtering in infotainment systems. In these scenarios, the soft termination's resistance to board flexure and thermal cycling directly affects the module's field failure rate over the vehicle's lifetime.
7. Conclusion
The value of the CGA5L1X7R1V106K160AE is not in maximizing capacitance density or minimizing cost. It lies in combining 10μF/35V capacitance with the mechanical reliability of soft termination in a standard 1206 package, backed by AEC-Q200 qualification. For automotive power designs that must remain stable under vibration, thermal cycling, and board-bending stress, it offers a proven component option that balances electrical performance with mechanical robustness.
Fudong Communication (Shenzhen) Group Co., Ltd., established in 2004, is a specialized global first tier semiconductor agent/distributor.
Fudong Mall is an online e-commerce platform belonging to Fudong Communication (Shenzhen) Group Co., Ltd. Fudong collaborates with global electronic component distributors and Chinese spot inventory suppliers.
Blog Category
BlogsTags
Related Information
2026-10-28
- 1500+ Daily average RFQ Volume
- 20,000.000 Standard Product Unit
- 1800+ Worldwide Manufacturers
- 15,000+ In-stock Warehouse
