TDK‑EPCOS High‑power Screw‑mount Aluminum Electrolytic Capacitor with Bottom Stud – B43458‑B5109‑M

Core Electrical & Mechanical Parameters

1. Basic Electrical Specifications

Rated Voltage: 450 VDC

Nominal Capacitance: 10000 μF

Capacitance Tolerance: ±20% (M‑code)

Surge Voltage: 1.1 × Rated Voltage = 495 VDC

Dissipation Factor tanδ (20 °C / 120 Hz): ≤0.20

Leakage Current Iₗₑₐₖ (20 °C, 5 min rest time): ≤0.01×C×Ur (μA)

Equivalent Series Inductance (ESL): Approx. 15 nH for φ51.6 mm version

Ripple Current Capability: High‑current design for DC‑link filtering of high‑power frequency‑conversion equipment

Key Product Advantages

High‑CV compact design, smaller footprint for the same capacitance value

Excellent ripple‑current withstand capability for continuous high‑power DC‑link filtering

Bottom‑stud thermal‑dissipation construction, greatly extended service life under high‑temperature conditions

Full‑welded construction, suitable for frequent charge‑discharge cycles and inverter pulse‑load operation

85 °C wide temperature rating, stable performance in harsh industrial and new‑energy environments

Applications (Core for DC‑Link Filtering)

1. New‑Energy Converters (Primary Applications)

Photovoltaic inverters, wind power converters, energy‑storage PCS converters.

Main DC‑link filtering; smoothing rectified DC voltage and absorbing pulse ripples.

2. High‑Power Industrial Frequency Converters & Servo Drives

High‑power motor frequency converters, servo drivers, drive power supplies for hoisting equipment.

High‑power variable‑frequency power supplies for machine tools, injection‑molding machines and air compressors.