EEE-1HAR33NR Panasonic Capacitor Polarised (Capacitor Al Electrolytic) In Stock
The Panasonic EEE-1HAR33NR is a surface-mount aluminum electrolytic capacitor with 0.33 µF capacitance, 50 V voltage rating, and ±20% tolerance. It delivers reliable bypass and filtering performance in compact SMT designs for power supplies, industrial control boards, and consumer electronics operating up to 105°C.
- Manufacturer
- Panasonic
- Package
- Capacitor Al Electrolytic
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- EEE-1HAR33NR Datasheet PDF
- Category
- Capacitor Polarised
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 0.33 µF capacitance at 50 V working voltage provides effective mid-frequency bypass on rails up to 50 V DC
- Surface-mount aluminum electrolytic package enables reflow solder assembly without manual through-hole insertion
- 105°C rated construction extends operational lifetime in thermally stressed power supply and power conversion environments
- ±20% capacitance tolerance meets standard design requirements for bypass, filtering, and hold-up applications
- Panasonic 1HA series manufacturing ensures consistent ESR and leakage current specifications for stable production yields
Applications
The EEE-1HAR33NR is used as a bulk bypass and decoupling capacitor on 24 V, 36 V, and 48 V DC supply rails in switch-mode power supplies, industrial motor drives, and PLC power conditioning circuits. Its 50 V rating provides the necessary voltage margin for 24 V bus designs per IEC 61010 derating guidelines, while the 0.33 µF value targets mid-frequency ripple suppression in the 100 kHz to 1 MHz range. LED driver modules and DC-DC converter output stages also deploy this SMT capacitor for local ripple filtering adjacent to switching elements.
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 capacitance, voltage, and tolerance does EEE-1HAR33NR offer for power supply bypass applications?
The EEE-1HAR33NR provides 0.33 µF capacitance rated at 50 V DC with ±20% tolerance. This combination targets mid-frequency bypass on 12 V to 48 V supply rails where the 50 V rating gives more than 2× derating margin on a 24 V bus, and the 0.33 µF value fills the gap between 0.1 µF high-frequency decoupling ceramics and larger 10–100 µF bulk electrolytic capacitors in multi-stage power filter designs.
How does the SMT package of EEE-1HAR33NR improve assembly efficiency over a radial through-hole variant on a dense PCB?
The surface-mount aluminum electrolytic package of the EEE-1HAR33NR supports automated pick-and-place and reflow soldering alongside other SMT components, eliminating a separate through-hole wave-solder pass. On a board with 500 or more components, removing through-hole insertion reduces assembly steps by 10–15%, lowers labor cost, and decreases the risk of polarity errors that are harder to inspect on radial capacitors placed manually.
In a 48 V DC-DC converter output filter, what role does EEE-1HAR33NR play alongside larger bulk capacitors?
In a multi-stage output filter, the 0.33 µF EEE-1HAR33NR supplements large 100–470 µF bulk capacitors by bypassing high-frequency switching noise at 100 kHz to 1 MHz that the larger electrolytic ESR prevents them from filtering effectively. Placing the 0.33 µF capacitor within 5 mm of the switching node reduces loop inductance and attenuates high-frequency ripple by 10–20 dB compared to relying on bulk capacitance alone, improving output voltage noise performance.
What operating temperature range does EEE-1HAR33NR support and how should designers apply lifetime derating in a 65°C ambient design?
The EEE-1HAR33NR is rated for continuous operation up to 105°C. Aluminum electrolytic capacitor lifetime roughly halves for every 10°C increase above the rated temperature, so at 65°C ambient (40°C below the 105°C rating) the expected lifetime increases by approximately 16× relative to the rated hours at 105°C. Designers should still confirm local hot-spot temperature near high-dissipation components, as junction temperatures 20–30°C above ambient are common in dense SMT power supply layouts.
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