EEE-HA1H3R3R Panasonic Capacitor Polarised (Other) In Stock
Panasonic EEE-HA1H3R3R is a 3.3 µF, 50 V surface mount aluminum electrolytic capacitor in the HA series SMD package with low ESR characteristics and long service life. Designed for power supply filtering and decoupling in consumer and industrial electronics. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- EEE-HA1H3R3R 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 rating provides effective bulk decoupling and filtering for switching power supplies operating up to 50 V
- SMD package enables automated pick-and-place assembly with standard reflow soldering, reducing board assembly time versus through-hole alternatives
- Low ESR design in the Panasonic HA series minimizes power dissipation and ripple current heating in high-frequency switching applications
- Long service life rating supports reliable operation in consumer electronics, industrial controls, and telecom power circuits across wide temperature ranges
Applications
The EEE-HA1H3R3R is commonly used as a bulk decoupling capacitor on the output of DC-DC converters operating at 5 V to 50 V, smoothing switching ripple in switching power supplies and motor driver circuits. Its 3.3 µF capacitance and 50 V rating make it appropriate for hold-up and filtering on intermediate bus rails in industrial power modules and consumer adapters. Engineers also use this capacitor for VCC rail decoupling on microcontroller and DSP boards where 50 V headroom is required.
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 voltage and capacitance rating of the EEE-HA1H3R3R, and in which power supply topologies is it used?
The EEE-HA1H3R3R is rated at 3.3 µF and 50 V. It is commonly used as an output filter capacitor on buck and boost DC-DC converters, where its 50 V headroom accommodates 24 V to 48 V industrial bus rails with appropriate voltage derating margin of at least 20% to extend service life.
How does the SMD format of the EEE-HA1H3R3R affect PCB assembly compared to through-hole aluminum electrolytic capacitors?
The SMD format eliminates through-hole drilling, reduces board layer count requirements, and allows automated reflow soldering at standard peak temperatures of 260°C, shortening assembly cycle time. However, SMD aluminum electrolytics have lower ripple current ratings than equivalent through-hole types, so designers must verify that the 3.3 µF SMD unit meets the ripple current demand at the switching frequency.
For a 48 V DC bus decoupling application, does the EEE-HA1H3R3R provide adequate voltage margin?
At a 50 V rating, the EEE-HA1H3R3R provides only 2 V of margin above a 48 V bus, which is below the recommended 20% derating guideline. For 48 V bus applications, engineers should select a 63 V or 100 V rated capacitor. The EEE-HA1H3R3R is better suited to 24 V to 36 V bus rails where 50 V provides at least 28% derating margin and acceptable service life.
In which consumer or industrial electronic assemblies is the EEE-HA1H3R3R with 3.3 µF at 50 V a common design choice?
This capacitor is frequently used in LED driver power stages, USB-C charger output filters, industrial sensor power modules, and audio amplifier bias supply filtering. Its 3.3 µF capacitance bridges the gap between small ceramic decouplers (0.1 µF to 1 µF) and larger bulk electrolytic hold-up capacitors (10 µF to 100 µF), providing mid-range filtering at frequencies between 1 kHz and 100 kHz in switching converters.
Related Guides
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 2026
0402 10uF X5R Decoupling Design Guide for Compact Digital Rails
Application note for using CL05A106MP5NUNC-class 0402 10uF X5R MLCCs in compact digital rail decoupling designs.
Jun 19, 2026
How to Choose an 0805 10uF MLCC for Decoupling and Bulk Capacitance
Selection guide for choosing 0805 10uF MLCCs around CL21A106KOQNNNE, covering derating, dielectric, package, and sourcing checks.
Jun 19, 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.
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.”