ECW-U2334KCV Panasonic Capacitor (Capacitor Chip Non-polarised) In Stock
Panasonic ECW-U2334KCV is a 0.33 µF, 250 V polyester film capacitor in a 3925 (10 × 6.3 mm) chip package with ±10% tolerance, delivering stable, low-loss performance for AC filtering and power conditioning circuits.
- Manufacturer
- Panasonic
- Package
- Capacitor Chip Non-polarised
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ECW-U2334KCV Datasheet PDF
- Category
- Capacitor
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 0.33 µF capacitance with ±10% tolerance for reliable filtering performance
- 250 V rated voltage supporting demanding AC and power-conversion circuits
- Non-polarized polyester film dielectric for low loss and long-term stability in 3925 chip form factor
Applications
The ECW-U2334KCV is well suited for EMI suppression and AC line filtering in power supplies and motor drives. Its 250 V rating and polyester film dielectric make it a reliable choice for coupling and bypass applications in industrial control equipment. The compact 3925 chip footprint also fits snubber networks and energy-storage stages in inverter designs.
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 voltage and capacitance ratings does the ECW-U2334KCV provide, and how do they affect circuit design?
The ECW-U2334KCV is rated at 250 V with a capacitance of 0.33 µF and ±10% tolerance. This combination supports AC line filtering up to 250 V and provides sufficient capacitance to suppress high-frequency EMI in power conversion circuits with switching frequencies in the tens-of-kHz range.
In which AC power-line filtering topologies can the ECW-U2334KCV replace electrolytic capacitors?
Because the ECW-U2334KCV is a non-polarized polyester film capacitor rated at 250 V, it directly replaces electrolytic types in X-capacitor positions of EMI filters, snubber networks, and AC coupling stages where a polarized part would fail. The 0.33 µF value suits Class X2 filter designs operating on 120 V or 230 V mains.
What are the physical dimensions of the 3925 chip package, and how should PCB land patterns be laid out?
The 3925 package measures approximately 10 mm × 6.3 mm × 5.3 mm. PCB land patterns should accommodate the 9.5 mm lead span with pads sized for the 4.0 mm lead width, leaving at least 0.5 mm clearance on each side. This 10 mm body length makes the part suitable for through-hole or radial-lead footprints in power-stage layouts requiring 8-channel or multi-capacitor filter banks.
How does the ECW-U2334KCV compare to a 0.33 µF, 100 V film capacitor in industrial motor-drive snubber designs?
The ECW-U2334KCV's 250 V rating provides more than 2× the voltage headroom compared with a 100 V-rated part, making it suitable for 120 V to 200 V DC bus snubber networks where voltage spikes can exceed 150 V. The polyester film dielectric also maintains capacitance within 10% across -40 °C to +85 °C, reducing derating concerns in motor-drive enclosures.
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