ECA1AM332 Panasonic Capacitor Polarised (Capacitor, Polarized Radial Diameter) In Stock
ECA1AM332 is a Panasonic 3300 µF radial-leaded aluminum electrolytic capacitor with a wet aluminum dielectric, 12.5 mm diameter body, and 0.33 mA maximum leakage current in a RoHS-compliant, lead-free package. It provides high bulk capacitance for power supply filtering and energy storage in through-hole PCB assemblies. Available globally with worldwide shipping; note the 30-week factory lead time for volume orders.
- Manufacturer
- Panasonic
- Package
- Capacitor, Polarized Radial Diameter
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ECA1AM332 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
- 3300 µF high capacitance in a 12.5 mm diameter radial package delivers substantial bulk energy storage for power supply smoothing and hold-up circuits
- Wet aluminum electrolytic dielectric provides excellent capacitance stability and low ESR for effective ripple current filtering
- RoHS-compliant lead-free construction (JESD-609 e3) meets global environmental regulations for consumer, industrial, and commercial electronics
- 0.33 mA maximum leakage current ensures low self-discharge in energy storage and power backup applications
Applications
ECA1AM332 is used as a bulk decoupling and energy-storage capacitor in linear and switching power supply output stages, where its 3300 µF capacitance smooths rectified AC and reduces ripple voltage at the load. Its radial-leaded through-hole form factor suits industrial power converters, audio amplifier power rails, and motor drive bus capacitor banks where high capacitance in a compact 12.5 mm diameter cylinder is required. The wet aluminum dielectric and low leakage current also make it suitable for hold-up capacitor applications in UPS and backup power systems.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| Factory Lead Time | 30 Weeks, 1 Day |
| YTEOL | 6 |
| Capacitance | 3300 µF |
| Capacitor Type | ALUMINUM ELECTROLYTIC CAPACITOR |
| Diameter | 12.5mm |
| Dielectric Material | ALUMINUM (WET) |
| JESD-609 Code | e3 |
| Leakage Current | 0.33mA |
| 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) | 10V |
| Ripple Current | 1090mA |
| Surface Mount | NO |
| Tan Delta | 0.28 |
| Terminal Finish | Tin (Sn) |
| Terminal Pitch | 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 capacitance and maximum leakage current does ECA1AM332 provide, and how do these values affect power supply design?
ECA1AM332 provides 3300 µF capacitance with a maximum leakage current of 0.33 mA. In a 5 V linear power supply, a 3300 µF capacitor can hold the output above 4.5 V for approximately 15 ms during a momentary input dropout at a 1 A load, providing meaningful hold-up time for soft shutdown in embedded controllers. The 0.33 mA leakage is low enough to avoid significant self-heating in continuously powered circuits.
What are the physical dimensions of ECA1AM332, and how does the 12.5 mm diameter body affect PCB layout?
ECA1AM332 has a 12.5 mm diameter cylindrical body with radial lead spacing standard for its capacitance class, requiring a PCB hole pitch of 5 mm to 6 mm typical for this size. The 12.5 mm diameter body height (typically 20 mm to 25 mm at 3300 µF) must be accounted for in enclosure clearance and adjacent component spacing on through-hole PCBs. Placing multiple ECA1AM332 units in parallel allows doubling capacitance to 6600 µF with the same footprint profile.
For an audio amplifier power rail, why would ECA1AM332 be selected over a film capacitor for bulk energy storage?
Aluminum electrolytic capacitors like ECA1AM332 achieve 3300 µF in a 12.5 mm diameter package, while a film capacitor of equivalent capacitance would require a volume 10× to 20× larger and cost 5× to 10× more. For an audio amplifier's ±35 V DC rail, bulk electrolytic capacitors with 3300 µF per rail absorb peak demand currents of several amperes during loud musical transients, maintaining rail voltage sag below 1 V. Film capacitors are added only in parallel for high-frequency bypass, not as primary bulk storage.
What compliance standards does ECA1AM332 meet, and what is the lead time for high-volume procurement?
ECA1AM332 carries a RoHS-compliant rating with JESD-609 code e3, confirming it is manufactured with a lead-free process suitable for export to the EU, Japan, China, and other markets with restrictions on hazardous substances. The factory lead time is 30 weeks and 1 day, which is significantly longer than standard stock items, so engineers designing new products should place orders at least 8 months before required delivery and maintain safety stock for production continuity.
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