ECE-A1EN222UE Panasonic Capacitor Polarised (Capacitor, Polarized Radial Diameter) In Stock
Panasonic ECE-A1EN222UE is a 2200µF, 25V DC bipolar aluminum electrolytic capacitor in a radial leaded through-hole package, designed for audio coupling, AC motor drives, and power supply filtering where non-polarized high-capacitance energy storage is required.
- Manufacturer
- Panasonic
- Package
- Capacitor, Polarized Radial Diameter
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ECE-A1EN222UE Datasheet PDF
- Category
- Capacitor Polarised
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 2200µF bipolar (non-polarized) design supports AC signal coupling and applications where capacitor polarity may reverse
- 25V DC rated voltage provides adequate headroom for filtering on 12V to 18V power supply and audio amplifier rails
- Radial leaded through-hole package enables easy manual and wave-soldering assembly with secure board mounting
- High capacitance value delivers substantial energy storage for bulk filtering, reducing ripple on high-current supply lines
Applications
The Panasonic ECE-A1EN222UE is well-suited for audio amplifier coupling stages, AC motor starting circuits, and audio crossover networks where a non-polarized electrolytic capacitor with high capacitance is required. Its 2200µF at 25V rating supports bulk filtering on power amplifier supply rails, reducing low-frequency ripple and maintaining stable bias voltages. The radial leaded package makes it compatible with through-hole PCB designs commonly found in professional audio equipment, home theater systems, and industrial AC drive controllers.
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
Why is the ECE-A1EN222UE a bipolar capacitor and when is this important in circuit design?
The ECE-A1EN222UE is a bipolar (non-polarized) aluminum electrolytic capacitor, meaning it can handle voltage applied in either polarity without damage. This is critical in audio coupling stages, AC motor starting circuits, and crossover networks where the voltage across the capacitor alternates or where the DC bias is uncertain. Standard polarized electrolytic capacitors would be damaged or fail in these applications if reverse-biased beyond their 1.5V or 3V reverse voltage rating, whereas the ECE-A1EN222UE handles full reverse swing at 25V.
For a power amplifier supply rail, how much ripple reduction can 2200µF provide at 100 Hz?
At 100 Hz (typical for a full-wave rectified 50 Hz supply), a 2200µF capacitor has a reactance of approximately 0.72 Ω (Xc = 1 / (2π × 100 × 0.0022)). Combined with load current, this limits peak-to-peak ripple voltage to roughly 45 mV per ampere of load current, making the ECE-A1EN222UE effective at keeping power supply ripple below audible thresholds on 12V to 24V amplifier rails driving loads of 1A to 5A.
How does the ECE-A1EN222UE compare to a film capacitor for audio coupling at 2200µF?
Film capacitors of 2200µF would be physically impractical and prohibitively expensive due to the extremely large dielectric area required for that capacitance at 25V. The ECE-A1EN222UE offers a cost-effective and compact alternative using aluminum electrolytic technology, with the bipolar construction addressing the main disadvantage of standard electrolytic capacitors in audio coupling. For critical high-fidelity applications above 1 kHz, some engineers bypass the 2200µF bipolar electrolytic with a small 0.1µF to 1µF film capacitor to extend high-frequency response.
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