ECA-1HM221B Panasonic Capacitor Polarised (Capacitor, Polarized Radial Diameter) In Stock
The Panasonic ECA-1HM221B is a 220 µF, 50 V radial aluminum electrolytic capacitor from the M Series with a 2000-hour rated lifetime in a 10 mm x 12.5 mm through-hole package. It provides reliable bulk energy storage and filtering for AC-DC power supplies. Available in stock worldwide with competitive pricing for prototype and production runs.
- Manufacturer
- Panasonic
- Package
- Capacitor, Polarized Radial Diameter
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ECA-1HM221B Datasheet PDF
- Category
- Capacitor Polarised
- Price
- From $0.1337(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ECA-1HM221B?
- 220 µF capacitance at 50 V rating in a compact 10 mm diameter x 12.5 mm height radial through-hole package for space-efficient power supply filtering
- 2000-hour rated operational life at maximum temperature, ensuring long-term reliability in consumer and industrial power supply designs
- Panasonic M Series aluminum electrolytic construction with low ESR characteristics enabling effective 50/60 Hz and high-frequency ripple current suppression
What is ECA-1HM221B used for?
The ECA-1HM221B is a standard bulk filtering capacitor for AC-DC linear and switching power supplies operating at output voltages up to 35 V with a 50 V rated component. Its 220 µF value provides substantial charge reservoir for smoothing full-wave rectifier outputs in 30 W to 60 W power adapters and desktop supply units. The 10 mm x 12.5 mm radial package fits standard PCB footprints and is compatible with automatic radial insertion equipment in volume production.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the ECA-1HM221B datasheet?
ECA-1HM221B Datasheet DownloadOfficial datasheet from Panasonic
What are equivalent replacements for ECA-1HM221B?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What voltage and capacitance does the ECA-1HM221B offer for power supply bulk filtering?
The ECA-1HM221B provides 220 µF of capacitance rated at 50 V, suitable for bulk filtering on 24 V to 35 V DC output rails in linear and switching power supplies. The 220 µF charge reservoir reduces peak-to-peak output voltage ripple by approximately 50% compared to a 100 µF capacitor at equivalent load current, improving load regulation in regulated 24 V or 28 V industrial supply designs.
How does the 2000-hour lifetime rating of the ECA-1HM221B affect product design reliability calculations?
The 2000-hour lifetime at maximum rated temperature is the baseline for calculating the expected service life of the ECA-1HM221B using the 10°C-per-doubling Arrhenius rule. Operating the capacitor 10°C below its rated maximum temperature extends expected life to approximately 4000 hours. At 25°C below maximum temperature, projected life reaches 16000 hours, supporting multi-year service intervals in always-on industrial power supply designs.
In which power supply topologies does the ECA-1HM221B 10 mm x 12.5 mm radial package provide the best fit?
The 10 mm diameter, 12.5 mm height radial package of the ECA-1HM221B fits the standard capacitor footprint in AC-DC flyback converters, linear post-regulators, and bridge rectifier output stages rated from 20 W to 60 W. Its body height of 12.5 mm is within the common 15 mm PCB clearance zone used in commercial power adapters and open-frame supply designs, allowing use without mechanical interference in most standard enclosures.
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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 |
|---|---|---|
| 1+ | $0.6350 | $0.64 |
| 10+ | $0.4130 | $4.13 |
| 50+ | $0.3084 | $15.42 |
| 100+ | $0.2751 | $27.51 |
| 500+ | $0.1401 | $70.05 |
| 8000+ | $0.1337 | $1069.44 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
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