ECW-U4103V17 Panasonic Capacitor (Capacitor Chip Non-polarised) In Stock
Panasonic ECW-U4103V17 is a 0.01 µF 400 VDC polyethylene naphthalate (PEN) film capacitor in a 1913 chip package with ±5% tolerance. It provides stable capacitance over temperature and excellent dielectric strength for filtering and coupling in high-voltage circuits. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Panasonic
- Package
- Capacitor Chip Non-polarised
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ECW-U4103V17 Datasheet PDF
- Category
- Capacitor
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 0.01 µF capacitance at 400 VDC rating in compact 1913 chip package for high-voltage circuit integration
- PEN (polyethylene naphthalate) film dielectric offers superior thermal stability and low dissipation factor versus standard PET film
- ±5% tight tolerance ensures consistent performance in precision filtering and timing circuits
- Non-polarized construction supports AC coupling and bidirectional signal filtering without orientation constraints
Applications
The ECW-U4103V17 is used in AC line filtering, high-voltage coupling networks, and snubber circuits in switching power supplies operating up to 400 VDC. Its PEN film dielectric provides low loss at frequencies from DC to several megahertz, making it suitable for resonant converter designs and electromagnetic interference suppression filters. Industrial power electronics and motor drives benefit from its high dielectric strength and stable capacitance over the operating temperature range.
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 define the ECW-U4103V17, and what film dielectric does it use?
The ECW-U4103V17 is rated at 0.01 µF capacitance and 400 VDC working voltage, using a PEN (polyethylene naphthalate) film dielectric with ±5% tolerance. PEN film provides better thermal stability and a lower dissipation factor compared to standard PET film, making this capacitor well suited for high-frequency filtering and energy storage in power electronics.
For which switching power supply topologies is the ECW-U4103V17 suitable as a snubber or filter capacitor?
The ECW-U4103V17 fits flyback, forward, and buck-boost converter snubber networks where the voltage stress can approach 300 V to 400 V. Its 400 VDC rating provides a safety margin above the peak switch voltage in these topologies, and the 0.01 µF capacitance is appropriate for RC snubbers targeting switching transient suppression in the 50 kHz to 200 kHz operating range.
How does the 1913 package size of the ECW-U4103V17 affect PCB layout compared to leaded film capacitors?
The 1913 chip package (4.8 mm × 3.2 mm footprint) eliminates through-hole lead spacing constraints, enabling the ECW-U4103V17 to be placed in tight SMD layouts. This is significantly more compact than typical leaded radial film capacitors at 7.5 mm or 5 mm pitch, reducing board space by roughly 40% to 60% while maintaining the 400 VDC dielectric isolation that high-voltage designs require.
When should ECW-U4103V17 be chosen over a ceramic capacitor at similar capacitance for high-voltage applications?
At 400 VDC and 0.01 µF, film capacitors like the ECW-U4103V17 outperform ceramic X7R alternatives because ceramics suffer significant capacitance loss—often 50% or more—under DC bias at high voltages. PEN film capacitors maintain essentially flat capacitance across the full rated voltage range, making the ECW-U4103V17 the preferred choice for precision snubber, coupling, and filtering roles above 100 VDC where stable capacitance is required.
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