ECW-U1104V33 Panasonic Capacitor (Other) In Stock
Panasonic ECW-U1104V33 is a stacked metallized PPS film capacitor with 100nF capacitance rated at 100V DC, offering ultra-low ESR and stable capacitance over -55°C to +105°C temperature range. Mold-less construction and PPS dielectric deliver superior high-frequency performance versus standard metallized polyester film types. Available in stock worldwide with competitive pricing for immediate delivery.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ECW-U1104V33 Datasheet PDF
- Category
- Capacitor
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Stacked metallized PPS (polyphenylene sulfide) film dielectric provides ultra-stable capacitance with less than 0.1% variation from -55°C to +105°C
- 100V DC voltage rating with low dissipation factor (tan δ < 0.001 at 1 kHz) suits precision filtering and resonant circuit applications
- Mold-less construction reduces parasitic inductance and ESR versus conventional wound-film capacitors for superior HF performance above 100 kHz
Applications
The ECW-U1104V33 PPS film capacitor is used in precision filtering, resonant circuits, and DC blocking applications in audio equipment, medical instrumentation, and power supplies that demand stable 100nF capacitance at up to 100V DC across a wide temperature range. Its ultra-low dissipation factor makes it ideal for high-Q resonant tank circuits and timing networks where conventional MKT or MKP film capacitors introduce unacceptable losses. The compact stacked construction suits surface-mount-compatible lead-forming for PCB integration in precision analog signal chains.
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 does ECW-U1104V33 PPS film capacitor ESR compare to standard MKT film capacitors at 100 kHz?
The ECW-U1104V33 uses stacked metallized PPS film dielectric with a dissipation factor (tan δ) below 0.001 at 1 kHz, translating to an effective series resistance (ESR) typically below 50 mΩ at 100 kHz for a 100nF capacitor. Standard MKT metallized polyester film capacitors exhibit tan δ of 0.005 to 0.01 at 1 kHz, resulting in ESR 5 to 10 times higher, making PPS types preferred for high-frequency filtering above 100 kHz and precision resonant circuit applications.
Over what temperature range does ECW-U1104V33 maintain stable capacitance, and how does this affect precision timing circuits?
ECW-U1104V33 maintains capacitance within ±1.5% over a temperature range of -55°C to +105°C, which is significantly tighter than the ±5% to ±10% variation typical of class 2 ceramic capacitors like X7R over the same range. In precision timing circuits where RC or LC time constants must remain accurate across industrial temperature extremes, the ECW-U1104V33 reduces frequency drift to below 1% from -40°C to +85°C, supporting oscillator and filter designs in automotive, industrial, and medical instruments.
What voltage rating does ECW-U1104V33 carry, and in which power supply filtering applications is it appropriate?
ECW-U1104V33 is rated for 100V DC continuous operation with a capacitance of 100nF, making it suitable for output filtering and snubber networks in switch-mode power supplies operating at 48V to 72V DC bus voltages with voltage spikes up to 100V. It is also appropriate for X-capacitor line filtering in AC-DC converters up to 70V AC peak (approximately 50V AC RMS), though AC-line suppression applications above 250V AC require a dedicated X-rated or Y-rated capacitor series.
How does ECW-U1104V33 mold-less stacked construction reduce parasitic inductance compared to a wound-film capacitor?
The mold-less stacked construction of ECW-U1104V33 arranges multiple thin PPS film layers in a flat stack rather than winding them into a cylindrical roll, reducing the equivalent series inductance (ESL) to approximately 2 nH to 5 nH compared to 10 nH to 20 nH typical of wound 100nF film capacitors at equivalent voltage ratings. Lower ESL raises the self-resonant frequency above 10 MHz, allowing the ECW-U1104V33 to function as an effective bypass capacitor in high-frequency analog and RF circuits where wound-film types would appear inductive.
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