Introduction of EEU-HD1E332B
Ⅰ. Product overview of EEU-HD1E332B
The EEU-HD1E332B is an aluminum electrolytic capacitor from Panasonic Industry's HD series. It features a radial-leaded, polarized construction with 3300 μF capacitance and a 25 VDC rated voltage. It is mainly used for power filtering, smoothing, energy storage, and ripple reduction in power supplies and general electronic equipment.
Ⅱ. EEU-HD1E332B Core parameter
Category: Capacitors Aluminum Electrolytic Capacitors
Polarization: Polar
Mfr: Panasonic Industry
Applications: General Purpose
Series: HD
Ripple Current @ Low Frequency: 1.4 A @ 120 Hz
Packaging: Cut Tape (CT) Tape & Box (TB)
Ripple Current @ High Frequency: 1.61 A @ 100 kHz
Part Status: Active
Lead Spacing: 0.197" (5.00mm)
Capacitance: 3300 µF
Size / Dimension: 0.492" Dia (12.50mm)
Tolerance: ±20%
Height - Seated (Max): 1.063" (27.00mm)
Voltage - Rated: 25 V
Mounting Type: Through Hole
Lifetime @ Temp.: 2000 Hrs @ 105°C
Package / Case: Radial, Can
Operating Temperature: -55°C ~ 105°C
Base Product Number: EEU-HD
Ⅲ. EEU-HD1E332B Main characteristics
High capacitance of 3300 μF: With a capacitance of 3300 μF, the component is primarily positioned for power filtering and energy storage, rather than signal coupling or high-frequency small-signal applications.
25 V rated voltage: The rated voltage is 25 VDC, meaning the capacitor should be operated within this voltage rating under normal design conditions. Appropriate voltage margin should be considered in practical circuit design.
Polarized capacitor: This is a polarized capacitor, so its positive and negative terminals must be connected correctly. Incorrect polarity can cause abnormal operation or even capacitor failure. Polarity is an important consideration when sourcing aluminum electrolytic capacitors.
Radial leaded / Through-hole construction: It uses a radial-leaded construction, with both terminals extending from the bottom of the capacitor for through-hole PCB mounting. It is therefore a typical THT / Through-Hole component.
Good ripple-current capability: Its rated ripple current is approximately 1.4 A at 120 Hz. Ripple-current capability is important in power-filtering applications because the capacitor may continuously experience AC ripple current from the power-conversion circuit.
Ⅳ. EEU-HD1E332B Application field
Power supply filtering: Power-supply filtering is one of its primary applications. It can be connected across a DC power rail to reduce voltage ripple generated by rectifiers or switching power supplies and smooth the DC output.
DC bus smoothing: In AC/DC and DC/DC power systems, a large electrolytic capacitor can serve as an energy-storage and filtering component on the DC bus, helping stabilize the DC bus voltage.
Energy storage: Its 3300 μF capacitance allows it to store electrical energy. During transient load changes, the capacitor can supply or absorb part of the energy and help reduce voltage fluctuations.
Ripple reduction: Switching power supplies and rectifier circuits typically contain output voltage ripple. The electrolytic capacitor helps reduce this ripple through its charge-and-discharge behavior.
Industrial and electronic power equipment: This high-capacitance, 25 V radial electrolytic capacitor can be used in power modules, industrial control equipment, consumer electronics, and other systems requiring DC power smoothing.
Ⅴ. Summary
The EEU-HD1E332B can be simply understood as a 3300 μF / 25 V high-capacitance aluminum electrolytic capacitor. Its main functions are energy storage, filtering, DC smoothing, and ripple reduction. For component sourcing, it should be classified as Capacitor → Aluminum Electrolytic Capacitor → Radial Leaded / THT Capacitor.