EEE-1HA3R3AR Panasonic Capacitor Polarised (Other) In Stock
Panasonic EEE-1HA3R3AR is a 3.3 µF 50 V aluminum electrolytic capacitor in a compact SMD (surface-mount) package from the VS series. Designed for high-reliability decoupling and filtering in power supply circuits. Suitable for industrial and consumer electronics requiring stable capacitance with low leakage current.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- EEE-1HA3R3AR Datasheet PDF
- Category
- Capacitor Polarised
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3.3 µF capacitance at 50 V rated voltage for power rail decoupling and low-frequency filtering
- SMD surface-mount form factor enables high-density automated PCB assembly
- Part of Panasonic VS series offering high reliability and long operational lifetime
- Polarized aluminum electrolytic construction provides cost-effective capacitance at 50 V
- Low leakage current design suitable for sensitive analog and mixed-signal supply filtering
Applications
The EEE-1HA3R3AR is commonly used as a bulk decoupling capacitor on 24 V to 48 V power supply output stages, providing 3.3 µF of energy storage to absorb load transients and reduce output ripple voltage. Its SMD package makes it well-suited for switch-mode power supply (SMPS) secondary-side filtering in industrial sensors, consumer electronics, and communication equipment. Engineers also use it for hold-up capacitance in low-current auxiliary power rails where a compact, reliable polarized capacitor is needed.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the capacitance and voltage rating of the EEE-1HA3R3AR, and what does this mean for circuit design?
The EEE-1HA3R3AR is rated at 3.3 µF and 50 V. Designers must ensure the applied DC voltage stays below 50 V to avoid dielectric breakdown, and the capacitance value of 3.3 µF is suitable for low-frequency decoupling and bulk energy storage on supplies up to 48 V, with a typical safety margin of at least 20% derating in production designs.
How does the VS-series SMD package of the EEE-1HA3R3AR affect its use in high-volume PCB assembly?
The surface-mount (SMD) package of the EEE-1HA3R3AR is compatible with standard reflow soldering processes, enabling automated pick-and-place assembly at throughputs of hundreds of components per minute. Compared to through-hole electrolytic capacitors that require axial lead insertion or wave soldering, the SMD format reduces assembly cycle time and lowers manufacturing cost for production volumes exceeding 10,000 units.
Is the EEE-1HA3R3AR polarized, and what happens if it is installed reversed?
Yes, as an aluminum electrolytic capacitor the EEE-1HA3R3AR is polarized and must be installed with its positive terminal connected to the higher-potential node. Reverse-biasing an aluminum electrolytic, even briefly, causes accelerated oxide degradation and can lead to catastrophic failure — including venting or rupture — at voltages exceeding just a few volts in reverse. Correct polarity marking on the PCB silkscreen and a bar on the capacitor body indicating the negative lead are essential safeguards.
When should an engineer consider using the EEE-1HA3R3AR instead of a ceramic capacitor of similar capacitance?
A 3.3 µF 50 V ceramic capacitor in a small SMD package would typically exhibit significant capacitance loss under DC bias due to the piezoelectric dielectric effect, sometimes losing 50% to 80% of its rated capacitance at 50 V. The EEE-1HA3R3AR aluminum electrolytic maintains its 3.3 µF capacitance far more stably across the full 50 V operating range, making it preferable for output filtering, hold-up, and bulk decoupling where predictable capacitance under load voltage is critical.
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