Nippon Chemi-Con Screw Terminal Capacitor Distributor | High-Voltage Bulk Storage

Genuine Nippon Chemi-Con screw-terminal aluminum electrolytic capacitors, 350 V to 550 V with high ripple for inverter DC links and bulk storage.

Read the Nippon Chemi-Con Screw Terminal Selection Guide

Nippon Chemi-Con Screw Terminal Overview

BeiLuo supplies genuine Nippon Chemi-Con screw-terminal aluminum electrolytic capacitors, the large-can parts used for high-voltage bulk storage and DC-link smoothing in inverters, motor drives, power supplies and energy-storage converters. A screw-terminal capacitor carries a threaded stud or screw terminal that accepts a busbar or a heavy cable, so it can handle the high currents and high ripple currents of a power stage without the lead limitations of a PCB part. Nippon Chemi-Con's screw-terminal families include the RWQ series, which is downsized and offers high ripple current at 350 V to 550 V, and the RWE series for high-voltage use, both rated 85 °C with a 2000-hour endurance at rated ripple, along with the long-life United Chemi-Con U36L family rated 10,000 hours at 85 °C. Case diameters from about 50 mm to 90 mm and case lengths to more than 100 mm cover a wide range of capacitance and voltage, and mounting is by a clamp or a bottom stud. These capacitors are rugged, vibration-tolerant and designed for the high ripple that a switching converter imposes. Typical uses include the DC link of a motor drive, the bus of a solar inverter, the bulk storage of a UPS and the smoothing stage of a large power supply. Every capacitor BeiLuo ships is factory-traceable and includes an import declaration, a certificate of origin and a RoHS compliance file. Our FAE team helps you size capacitance and ripple, estimate lifetime from the case temperature and match the case size and terminal type to your mechanical design.

Nippon Chemi-Con Screw Terminal Product Range

In-stock Screw Terminal series available now, each with import documentation and FAE support. Click a model for full specifications and purchase information.

ModelCapacitanceVoltageCase SizeTemperatureEndurance
ERWQ351LGC152MC65U1500 uF350 VØ50 x 65 mm-40 °C to +85 °C2000 h at 85 °C
ERWQ351LGC182MC75U1800 uF350 VØ50 x 75 mm-40 °C to +85 °C2000 h at 85 °C
ERWQ501LGC681MC65U680 uF500 VØ50 x 65 mm-40 °C to +85 °C2000 h at 85 °C

Frequently Asked Questions

How do I read the screw-terminal capacitor table?

Capacitance and Voltage set the energy storage and the voltage class, Case Size the mechanical fit and the thermal mass, and Endurance the life at the rated temperature and ripple. Temperature confirms the grade.

Match the voltage with margin and size the capacitance for the ripple you can tolerate.

Open the ERWQ351LGC152MC65U page

Why choose a screw-terminal capacitor?

A screw-terminal capacitor connects to a busbar or heavy cable, so it handles the high current and high ripple of a power stage far better than a leaded PCB part. It also packs large capacitance and a large thermal mass into a single can.

That suits DC-link and bulk-storage applications.

Compare screw-terminal capacitors

How do I estimate the capacitor lifetime?

Aluminum electrolytic lifetime roughly doubles for every 10 °C reduction in core temperature, so estimate the core temperature from the case temperature and the ripple heating, then use the datasheet endurance and the lifetime formula. Keep the ripple within the rating for the temperature.

Our FAE team can run the lifetime estimate for you.

Read the capacitor lifetime notes

Are the capacitors genuine and documented?

Every Nippon Chemi-Con capacitor BeiLuo ships is factory-traceable and includes an import declaration, a certificate of origin and a RoHS compliance file. Mainstream models are held in regional warehouses.

Click a model for stock status, or request a quote for current lead time.

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Documentation

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Request pricing, samples or technical consultation for Nippon Chemi-Con Screw Terminal products. Our FAE team responds within one business day.

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