ECW-U4223V17 Panasonic Capacitor (Capacitor Chip Non-polarised) In Stock
Panasonic ECW-U4223V17 is a PEN film capacitor rated at 400V DC with 0.022 µF capacitance and 5% tolerance in a compact 2416 chip package. Available from stock worldwide with fast shipping.
- Manufacturer
- Panasonic
- Package
- Capacitor Chip Non-polarised
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ECW-U4223V17 Datasheet PDF
- Category
- Capacitor
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 400V DC rated PEN film capacitor providing high-voltage stability for power supply and motor drive circuits
- 0.022 µF capacitance with tight 5% tolerance ensuring precise filtering and resonance tank performance
- Non-polarized 2416 chip package suitable for SMT reflow assembly in compact high-voltage PCB designs
Applications
The ECW-U4223V17 is well suited for snubber circuits, EMI filtering, and resonance tank networks in switch-mode power supplies, inverters, and motor drives operating at up to 400V DC. Its PEN film dielectric provides stable capacitance over temperature and frequency, making it appropriate for precision timing circuits, sample-and-hold stages, and AC coupling networks in industrial power electronics.
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 specifications does the ECW-U4223V17 offer for high-voltage power supply designs?
The ECW-U4223V17 is rated at 400V DC with a capacitance of 0.022 µF (22 nF) and a 5% tolerance. These specifications make it suitable for snubber networks across power switching transistors in AC-DC converters, where the capacitor must absorb voltage spikes above 300V without degradation, and for resonance tank circuits in LLC converters operating from rectified mains voltage.
How does the PEN film dielectric in ECW-U4223V17 compare to ceramic capacitors for noise-sensitive filter applications?
PEN (polyethylene naphthalate) film capacitors like the ECW-U4223V17 exhibit very low dielectric absorption and stable capacitance over temperature, unlike Class II ceramic capacitors which can lose 30% to 80% of capacitance under DC bias. For 0.022 µF filtering stages at 400V, the PEN film construction maintains consistent performance across -40°C to +105°C, making it more reliable for precision EMI filters and timing circuits.
What is the physical package size of ECW-U4223V17, and how does it integrate into a compact SMT high-voltage design?
The ECW-U4223V17 uses a 2416 chip package (approximately 6.0 mm x 4.0 mm footprint) that can be placed by standard SMT pick-and-place equipment and reflowed using lead-free solder profiles. This compact non-polarized form factor allows it to fit in tight PCB layouts for power module designs, replacing larger through-hole film capacitors while maintaining the 400V rating needed for rectified 230V AC mains applications.
When should ECW-U4223V17 be chosen over a standard multilayer ceramic capacitor (MLCC) for a 400V snubber circuit?
An ECW-U4223V17 should be selected over an MLCC when the snubber circuit must operate at 400V DC, because standard X7R or X5R MLCCs rated above 250V in a 0.022 µF value are uncommon and expensive. Additionally, the PEN film construction avoids the piezoelectric noise and capacitance droop under high DC bias that afflicts high-voltage MLCCs, ensuring the snubber absorbs switching transients consistently across thousands of operating hours.
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