ECA1EM331 Panasonic Capacitor Polarised (Capacitor, Polarized Radial Diameter) In Stock
Panasonic ECA1EM331 is a 330 µF radial leaded aluminum electrolytic capacitor with 25 V rating and 8 mm diameter. Suitable for power supply filtering and bulk energy storage in consumer and industrial electronics applications.
- Manufacturer
- Panasonic
- Package
- Capacitor, Polarized Radial Diameter
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ECA1EM331 Datasheet PDF
- Category
- Capacitor Polarised
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 330 µF capacitance in a compact 8 mm diameter radial package for efficient board space utilization in power supply designs
- Wet aluminum electrolytic dielectric with leakage current as low as 0.0825 mA ensuring minimal power loss in DC filtering applications
- RoHS compliant (JESD-609 e3) lead-free construction supporting environmentally responsible designs in consumer and industrial electronics
Applications
The ECA1EM331 is ideal for power supply bypass and bulk capacitance in AC-DC converters, motor drive circuits, and industrial control boards requiring 330 µF at 25 V. Its 8 mm radial form factor fits standard PCB footprints for electrolytic capacitors in consumer electronics, audio amplifiers, and LED driver circuits. The wet aluminum electrolytic construction provides high capacitance per unit volume at a cost-effective price point for high-volume production applications.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| Factory Lead Time | 21Weeks |
| YTEOL | 6 |
| Capacitance | 330 µF |
| Capacitor Type | ALUMINUM ELECTROLYTIC CAPACITOR |
| Diameter | 8mm |
| Dielectric Material | ALUMINUM (WET) |
| JESD-609 Code | e3 |
| Leakage Current | 0.0825mA |
| Mounting Feature | THROUGH HOLE MOUNT |
| Negative Tolerance | 20% |
| Package Shape | CYLINDRICAL PACKAGE |
| Package Style | Radial |
| Packing Method | BULK |
| Polarity | POLARIZED |
| Positive Tolerance | 20% |
| Rated (DC) Voltage (URdc) | 25V |
| Ripple Current | 390mA |
| Surface Mount | NO |
| Tan Delta | 0.16 |
| Terminal Finish | Tin (Sn) |
| Terminal Pitch | 3.5mm |
| Terminal Shape | WIRE |
| Package | Capacitor, Polarized Radial Diameter |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8532.22.00.20 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the key electrical specifications of the Panasonic ECA1EM331 capacitor?
The ECA1EM331 is a 330 µF aluminum electrolytic capacitor rated at 25 V with a leakage current of 0.0825 mA and an 8 mm body diameter. Its wet aluminum dielectric construction provides high capacitance density suitable for bulk energy storage and low-frequency filtering in power supply circuits operating up to the rated voltage.
In which power supply and filtering applications does the ECA1EM331 perform best?
The ECA1EM331 excels in input and output filtering stages of 25 V or lower DC power supplies where 330 µF bulk capacitance is needed to reduce ripple voltage. Common applications include 12 V to 24 V switchmode power supplies, motor drive bus capacitors, audio amplifier rail filtering, and LED driver smoothing circuits requiring stable DC output with low ripple.
What PCB footprint and lead spacing does the ECA1EM331 require?
The ECA1EM331 uses a radial leaded package with an 8 mm body diameter and standard 3.5 mm lead spacing typical of this capacitance class. The radial form factor is compatible with standard through-hole PCB land patterns for 8 mm diameter electrolytic capacitors, simplifying drop-in replacement and board layout design in power supply and audio circuit applications.
Is the ECA1EM331 compliant with RoHS and lead-free manufacturing requirements?
Yes, the ECA1EM331 carries a JESD-609 code of e3 confirming lead-free (Pb-free) construction and is fully REACH compliant, meeting RoHS directives for restriction of hazardous substances. This makes it suitable for export to EU markets and compliant with lead-free soldering processes using SAC305 solder at standard reflow temperatures up to 260°C.
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