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
What are the key features of EEFCX1E330R?
- 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
What is EEFCX1E330R used for?
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.
What are the specifications of EEFCX1E330R?
| 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 |
Where can I find the EEFCX1E330R datasheet?
EEFCX1E330R Datasheet DownloadOfficial datasheet from Panasonic
What are equivalent replacements for EEFCX1E330R?
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.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Panasonic
Panasonic is a leading electronic component manufacturer. FindMyChip sources Panasonic ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 50+ | $0.3960 | $19.80 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
TPSD477M006R0100
AVX
Capacitor Polarised
TPSD227M006R0100
AVX
Capacitor Polarised
TPSD157M010R0100
AVX
Capacitor Polarised
TAJY686K020RNJ
AVX
Capacitor Polarised
TAJY685K050RNJ
AVX
Capacitor Polarised
TAJY107K016RNJ
AVX
Capacitor Polarised
TAJW475K035RNJ
AVX
Capacitor Polarised
TAJT106K016R
AVX
Capacitor Polarised
TAJR225M010R
AVX
Capacitor Polarised
TAJR225K016RNJ
AVX
Capacitor Polarised
TAJR106M006R
AVX
Capacitor Polarised
TAJE686M025R
AVX
Capacitor Polarised
TAJE476M035R
AVX
Capacitor Polarised
TAJE227M016R
AVX
Capacitor Polarised
TAJD476M025R
AVX
Capacitor Polarised
TAJD475M050R
AVX
Capacitor Polarised
TAJD227M010R
AVX
Capacitor Polarised
TAJD227K006RNJ
AVX
Capacitor Polarised
TAJD226M035R
AVX
Capacitor Polarised
TAJD226M020R
AVX
Capacitor Polarised
TAJD107M016R
AVX
Capacitor Polarised
TAJD107M010R
AVX
Capacitor Polarised
TAJC335M035RNJ
AVX
Capacitor Polarised
TAJC226M025RNJ
AVX
Capacitor Polarised