EEE-FK1C432SM Panasonic Capacitor Polarised (Other) In Stock
Panasonic EEE-FK1C432SM is a 4300 µF 16 V aluminum electrolytic SMD capacitor rated at 105°C, AEC-Q200 qualified for automotive applications, measuring 16x16.5 mm. Designed for bulk energy storage and high-ripple-current filtering. Available from stock with worldwide shipping.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- EEE-FK1C432SM Datasheet PDF
- Category
- Capacitor Polarised
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4300 µF capacitance at 16 V in a 16x16.5 mm SMD package delivering high bulk capacitance for demanding automotive power supply designs
- AEC-Q200 qualified ensuring compliance with automotive reliability standards for use in 12 V vehicle power management systems
- 105°C rated service life with high ripple current capability, suitable for underhood and cabin automotive electronic control units
Applications
The EEE-FK1C432SM is designed for automotive electronic control units (ECUs) requiring high-capacitance bulk filtering on 12 V power rails with AEC-Q200 qualification. Its 4300 µF at 16 V rating supports energy storage in start-stop systems, motor drive inverters, and DC-DC converter output stages in electric and hybrid vehicles. The large-body SMD format suits automated PCB assembly in high-reliability automotive and industrial power conversion modules.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What AEC qualification level does the EEE-FK1C432SM hold, and what does this mean for automotive ECU designs?
The EEE-FK1C432SM is AEC-Q200 qualified, which is the Automotive Electronics Council passive component qualification standard. AEC-Q200 certification requires the capacitor to pass stress tests including thermal shock from -55°C to +125°C, moisture resistance at 85°C and 85% RH, and high-temperature operational life at rated conditions. This qualification confirms the component meets reliability requirements for use in automotive ECUs operating in harsh under-hood and passenger compartment environments.
What is the body size of EEE-FK1C432SM, and how does its 4300 µF capacitance compare to smaller SMD alternatives on a 16 V rail?
The EEE-FK1C432SM measures 16 mm diameter by 16.5 mm height in an SMD aluminum electrolytic package, making it one of the larger capacitors in the FK series. For comparison, a 1000 µF 16 V SMD electrolytic typically occupies a 10x10 mm footprint. The 4300 µF value is 4.3× higher capacitance, which reduces output voltage ripple proportionally for the same load transient. Designers must budget for the larger PCB footprint when selecting this component for bulk filtering.
What temperature range does EEE-FK1C432SM support, and can it survive automotive underhood ambient temperatures?
The EEE-FK1C432SM is rated for operation from -40°C to +105°C, with a service life rating of at least 2000 hours at the upper temperature limit. Automotive underhood ambient temperatures can reach 85°C to 125°C near heat sources. At the 105°C maximum rating, the component should be positioned away from direct heat sources or provided with thermal management to stay within the rated operating range for the designed service life.
How much ripple current can EEE-FK1C432SM handle compared to smaller FK series capacitors at the same voltage rating?
The EEE-FK1C432SM, due to its large 16x16.5 mm body, supports a significantly higher ripple current rating than compact FK series parts of lower capacitance. Larger-body aluminum electrolytic capacitors in the FK series typically carry ripple current ratings of 2 A to 4 A at 100 Hz and 105°C, while smaller FK series variants rated at 470 µF to 1000 µF at 16 V may only support 0.6 A to 1.2 A ripple. This makes the EEE-FK1C432SM well-suited for high-current power stage filtering where ripple current would overstress smaller capacitors.
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