EECF5R5U224 Panasonic Capacitor Polarised (Other) In Stock
The EECF5R5U224 is a Panasonic electric double-layer capacitor (supercapacitor) with 220,000 µF (220 F) capacitance and 5.5 V rated voltage in a 13.5 mm diameter radial through-hole package. It uses activated carbon electrodes for high energy density and long cycle life. Available in stock with worldwide shipping.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 2
- Lifecycle
- OBSOLETE
- Datasheet
- EECF5R5U224 Datasheet PDF
- Category
- Capacitor Polarised
- Temp Range
- -25.0°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of EECF5R5U224?
- 220,000 µF (0.22 F) ultra-high capacitance in a compact 13.5 mm diameter through-hole package for energy buffering applications
- 5.5 V rated voltage with activated carbon electric double-layer construction enables millions of charge-discharge cycles without degradation
- Capacitance range of 0.176 F to 0.396 F covers RTC backup, pulse power delivery, and energy harvesting buffer requirements
- RoHS compliant (e3 JEDEC code) through-hole mount design supports wave soldering and manual assembly into energy storage modules
What is EECF5R5U224 used for?
The EECF5R5U224 supercapacitor is ideal for real-time clock (RTC) backup power, memory keep-alive circuits, and peak-load buffering in industrial controllers and smart meters where long cycle life is critical. Its 220,000 µF capacitance and 5.5 V rating also suit energy harvesting systems, wireless sensor nodes, and handheld devices that store bursts of harvested energy to power intermittent data transmissions.
What are the specifications of EECF5R5U224?
| Reach Compliance Code | Compliant |
| YTEOL | 0 |
| Additional Feature | CAPACITANCE RANGE IS 0.176F TO 0.396F |
| Capacitance | 220000 µF |
| Capacitor Type | ELECTRIC DOUBLE LAYER CAPACITOR |
| Diameter | 13.5mm |
| Dielectric Material | ACTIVATED CARBON |
| JESD-609 Code | e3 |
| Mounting Feature | THROUGH HOLE MOUNT |
| Negative Tolerance | 20% |
| Package Shape | CYLINDRICAL PACKAGE |
| Package Style | Radial |
| Packing Method | BULK |
| Positive Tolerance | 80% |
| Rated (DC) Voltage (URdc) | 5.5V |
| Surface Mount | NO |
| Terminal Finish | Tin (Sn) |
| Terminal Pitch | 5mm |
| Terminal Shape | FLAT |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8532.29.00.40 |
Where can I find the EECF5R5U224 datasheet?
EECF5R5U224 Datasheet DownloadOfficial datasheet from Panasonic
What are equivalent replacements for EECF5R5U224?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How long can the EECF5R5U224 maintain an RTC circuit drawing 5 µA from a 3 V backup rail?
Using E = 0.5 × C × V², the EECF5R5U224 stores approximately 3.3 J at 5.5 V. Discharging from 5.5 V to 3 V while supplying 5 µA at an average of 4.25 V yields an available charge of about 0.77 C, which sustains the 5 µA load for roughly 154,000 seconds (approximately 43 hours) before the voltage drops below the 3 V RTC threshold.
How does the EECF5R5U224's 220,000 µF capacitance compare to a standard 1000 µF electrolytic capacitor for pulse power applications?
The EECF5R5U224 provides 220 times more capacitance than a 1000 µF electrolytic, enabling it to deliver pulse currents of several amps for hundreds of milliseconds without significant voltage droop. In wireless module transmit bursts requiring 200 mA for 50 ms, the 220,000 µF supercapacitor limits voltage droop to less than 0.05 V, whereas a 1000 µF capacitor would drop over 10 V under the same load.
What are the physical mounting constraints for the EECF5R5U224 in a through-hole PCB design with a 13.5 mm body diameter?
The EECF5R5U224 has a 13.5 mm body diameter with radial leads on a standard 5 mm pitch, requiring a PCB keep-out zone of at least 14 mm diameter to prevent contact with adjacent components. Lead spacing of 5 mm fits standard through-hole PCB footprints, and the component height typically exceeds 20 mm, so designers must verify enclosure clearance above the board before placing the part near tall components or heatsinks.
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