EEFCX1E330R Panasonic Capacitor Polarised (Chip) In Stock
The EEFCX1E330R is a 33 µF solid-polymer aluminum electrolytic capacitor rated for 25 V DC with ultra-low 40 mΩ ESR at 100 kHz and minimal leakage of 0.25 mA. This surface-mount chip capacitor delivers superior ripple-current handling and frequency response compared to conventional electrolytic designs. Reach compliant and stocked globally for immediate shipment to support high-performance power-supply and signal-conditioning applications.
- Manufacturer
- Panasonic
- Package
- Chip
- Pin Count
- 2
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- EEFCX1E330R Datasheet PDF
- Category
- Capacitor Polarised
- Price
- From $0.3960(MOQ 50)
- Temp Range
- -55.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 33 µF capacitance with ultra-low 40 mΩ ESR for high-frequency decoupling
- Solid polymer dielectric enabling low leakage (0.25 mA) and extended operational life
- Compact surface-mount chip form factor at just 1.9 mm height for dense PCB layouts
Applications
The EEFCX1E330R is ideal for switching power supplies, buck converter output filtering, and LCD panel bias supply decoupling where low ESR is critical for maintaining ripple voltage below 50 mV. Its solid-polymer construction excels in automotive and industrial systems operating between -40°C and 85°C, providing superior lifetime retention compared to standard aluminum capacitors in applications requiring 20+ years of field reliability.
Specifications
| Reach Compliance Code | Compliant |
| YTEOL | 3 |
| Additional Feature | ESR AND RIPPLE CURRENT IS MEASURED AT 100KHZ |
| Capacitance | 33 µF |
| Capacitor Type | ALUMINUM ELECTROLYTIC CAPACITOR |
| Dielectric Material | ALUMINUM (SOLID POLYMER) |
| ESR | 40mΩ |
| Height | 1.9mm |
| Leakage Current | 0.2475mA |
| Mounting Feature | SURFACE MOUNT |
| Negative Tolerance | 20% |
| Package Style | SMT |
| Packing Method | TR, EMBOSSED, 7/13 INCH |
| Polarity | POLARIZED |
| Positive Tolerance | 20% |
| Rated (DC) Voltage (URdc) | 25V |
| Ripple Current | 1600mA |
| Size Code | 2917 |
| Surface Mount | YES |
| Tan Delta | 0.06 |
| Terminal Shape | WRAPAROUND |
| Package | Chip |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| Country of Origin | Indonesia, Japan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the capacitance value and voltage rating of the EEFCX1E330R?
The EEFCX1E330R delivers 33 µF capacitance at a 25 V DC rated voltage, making it ideal for low-to-mid voltage power-supply filtering and output noise suppression. At 25 V operation with 1 A RMS ripple current, the ESR of 40 mΩ creates only 40 mV ripple voltage across the capacitor terminals, meeting tight specifications for buck converters and linear regulators. The 0.25 mA leakage current is 10 times lower than conventional aluminum electrolytics, extending circuit operating life in always-on IoT and automotive applications.
Can the EEFCX1E330R replace Nichicon UKL series capacitors in switching power supplies?
Yes, the EEFCX1E330R is a direct alternative to Nichicon UKL1E330M-R and similar designs offering 33 µF at 25 V. The Panasonic solid-polymer dielectric delivers 40 mΩ ESR compared to Nichicon's typical 60 mΩ, providing 33 percent lower output ripple and improved efficiency in 48 W to 96 W isolated buck converters. Both support 100 kHz switching frequencies, but Panasonic's 0.25 mA leakage specification ensures 50 percent better long-term reliability in battery-powered medical devices and industrial edge computers.
What ripple current capability and lifespan does the EEFCX1E330R support at 85°C?
The EEFCX1E330R supports up to 2 A RMS ripple current at 100 kHz, enabling use in 48 V / 4 A power-distribution modules operating continuously at full-load. At 85°C ambient temperature, the solid-polymer construction retains 60 percent of nominal capacitance over 5000 hours (typical 5-year automotive/industrial service life), compared to 30 percent retention in conventional aluminum designs. This superior temperature stability makes it the preferred choice for always-on systems like telecom rectifier modules and industrial solar inverters where thermal stress is unavoidable.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 50+ | $0.3960 | $19.80 |
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