ECE-A1EN222U Panasonic Capacitor Polarised (Capacitor, Polarized Radial Diameter) In Stock
Panasonic ECE-A1EN222U is a 2200 µF, 25 V aluminum electrolytic capacitor in a radial through-hole package, designed for bulk energy storage, power supply filtering, and low-frequency decoupling in consumer electronics and industrial power conversion circuits.
- Manufacturer
- Panasonic
- Package
- Capacitor, Polarized Radial Diameter
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ECE-A1EN222U Datasheet PDF
- Category
- Capacitor Polarised
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- High 2200 µF capacitance in a compact radial through-hole package for efficient bulk energy storage
- 25 V DC rated voltage with aluminum electrolytic chemistry providing stable capacitance over temperature
- Low equivalent series resistance (ESR) suitable for power supply ripple filtering and hold-up time extension
- Polarized radial package simplifies PCB layout with clear anode and cathode lead orientation
- Part of Panasonic's ECE-A series, known for long operational life up to 2000 hours at 85°C
Applications
The ECE-A1EN222U is widely used as a bulk filter capacitor on the output stages of linear and switched-mode power supplies, where 2200 µF at 25 V provides effective ripple attenuation at frequencies below 1 kHz. It is also used for hold-up time buffering in 12 V and 24 V industrial equipment such as motor controllers, inverters, and lighting ballasts. Its through-hole radial form factor makes it straightforward to hand-solder or use with wave-soldering in lower-volume production runs.
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
How long can the ECE-A1EN222U hold up a 12 V rail during a 50 ms power interruption when loaded at 500 mA?
With 2200 µF at a 25 V rating and a 12 V operating voltage, the ECE-A1EN222U can supply 500 mA for approximately 52 ms before the voltage drops by 12 V, using E = ½CV². This makes it a practical hold-up capacitor for short power-loss events in 12 V embedded systems and industrial controllers.
What is the rated operating temperature range and lifetime of the ECE-A1EN222U?
The ECE-A1EN222U is rated for operation from -40°C to +85°C, with an endurance life of up to 2000 hours at the 85°C maximum temperature. At lower ambient temperatures of 25°C, effective operational life extends well beyond 10,000 hours, making it reliable for industrial power supply applications.
For which power supply output voltage rails is 2200 µF at 25 V a safe derating choice?
Industry derating guidelines recommend operating aluminum electrolytic capacitors at 80% or less of their rated voltage for long life. For the ECE-A1EN222U at 25 V rated, the maximum safe operating voltage is 20 V DC, making it a well-derated choice for 12 V, 15 V, and 18 V output rails in SMPS and linear regulator designs.
What Panasonic or competing parts can substitute for the ECE-A1EN222U in 2200 µF / 25 V through-hole designs?
Compatible alternatives include Panasonic ECA-1EN222, Nichicon UPM1E222MHD (2200 µF, 25 V, 16 mm × 25 mm), and Rubycon ZLH series 2200 µF 25 V radial capacitors. Verify lead pitch (typically 5 mm or 7.5 mm), body diameter (16 mm), and height (25 mm) match the ECE-A1EN222U footprint before substituting.
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