ECW-U2473KC9 Panasonic Capacitor (Other) In Stock
Panasonic ECW-U2473KC9 is a 47 nF, 250 V stacked metallized PPS (polyphenylene sulfide) film capacitor with 10% tolerance and mold-less construction for high-frequency stability and low loss. Delivers excellent temperature stability and low dielectric absorption for precision analog and filter circuits. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ECW-U2473KC9 Datasheet PDF
- Category
- Capacitor
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Stacked metallized PPS film dielectric provides superior temperature stability and low dissipation factor compared to standard polyester capacitors
- 250 V voltage rating with 47 nF capacitance and mold-less construction enables reliable operation in high-voltage analog and filter applications
- Extremely low dielectric absorption and tight 10% tolerance maintain precision in sample-and-hold, timing, and tuned filter circuits
Applications
ECW-U2473KC9 is used in precision analog filter networks, timing circuits, and sample-and-hold stages where low dielectric absorption and stable 47 nF capacitance at 250 V are critical. The PPS film dielectric maintains capacitance within tight bounds across a wide temperature range, making it suitable for industrial instrumentation, audio amplifiers, and power electronics snubber circuits. Its mold-less construction reduces parasitic inductance and supports reliable operation in high-frequency switching environments.
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 capacitance, voltage rating, and dielectric type does ECW-U2473KC9 use for precision filter applications?
ECW-U2473KC9 is a 47 nF, 250 V plastic film capacitor using stacked metallized PPS (polyphenylene sulfide) film as the dielectric. PPS film offers significantly lower dissipation factor and better temperature stability than standard PET or PP films, making this 47 nF unit suitable for precision filter resonators, snubber networks, and high-voltage timing circuits requiring stable capacitance from -40°C to +105°C.
Why is ECW-U2473KC9 preferred over ceramic capacitors in precision sample-and-hold circuits?
ECW-U2473KC9 has extremely low dielectric absorption compared to ceramic capacitors, meaning it releases less than 0.1% of stored charge back into the circuit after a fast discharge event. In 12-bit or higher resolution sample-and-hold and analog-to-digital front ends, dielectric absorption causes voltage droop errors that degrade accuracy, so the 47 nF PPS film capacitor maintains held voltages far more faithfully than X7R or Y5V ceramic alternatives of similar 250 V rating.
In which power electronics snubber designs can ECW-U2473KC9 replace a generic film capacitor?
ECW-U2473KC9 at 47 nF, 250 V can replace generic polyester or polypropylene snubber capacitors in IGBT and MOSFET gate snubber networks switching below 250 V where reduced component size from PPS film stacking is beneficial. The self-healing metallized construction tolerates brief overvoltage transients without catastrophic failure, and the mold-less package reduces lead inductance, improving transient voltage clamping effectiveness at switching edges faster than 100 ns.
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