High Quality 20uF 450V DC Capacitor

INTRODUCTION

Product Parameter

Technical Specifications

Application-specific reference parameters

Parameter	Reference / confirmation requirement
Product family	DC film capacitor; exact series confirmation required
Headline rating	20µF · 450V DC
Electrical duty	Confirm continuous, peak and transient voltage; waveform, frequency, current spectrum, switching or discharge conditions
Loss and heating	Series- and application-dependent; confirm ESR or dissipation, RMS current, thermal rise and cooling
Mechanical format	Box construction with radial PCB leads; controlled dimensions and terminal drawing required
Environment	Temperature, humidity, altitude, enclosure, ventilation, contamination and mounting require application review
Final release basis	Controlled datasheet + drawing + quotation + approved sample

Product-specific note: The image supports a box-style radial-leaded format. Lead spacing, body dimensions and permissible ripple must come from the controlled drawing and datasheet, not the former generic p=10mm text.

Product Information

PCB DC Film Capacitor

Qualify the compact DC film capacitor from the real circuit duty

A box-style radial-leaded film capacitor marked by the product record as 20µF and 450V DC. It may enter a DC-bus or filtering shortlist, but high-energy DC-link suitability must be confirmed from the selected series data, ripple current, dv/dt, temperature and mechanical limits.

Electrical profile

Define working and transient voltage, waveform, current or reactive-power duty, frequency and fault conditions.

Thermal profile

Review loss, self-heating, ambient, ventilation, cooling path, duty cycle and service-life target.

Mechanical interface

Confirm body dimensions, terminals or leads, mounting, clearances, insulation and connection method.

Product-type decision

A DC voltage marking does not automatically prove DC-link capability

The image supports a box-style radial-leaded format. Lead spacing, body dimensions and permissible ripple must come from the controlled drawing and datasheet, not the former generic p=10mm text.

PCB DC filtering

Confirm continuous and transient voltage, ripple spectrum, frequency, board temperature and available footprint.

Power-supply buffering

Check stored-energy demand, switching conditions, dv/dt, self-heating and required life.

Replacement evaluation

Match dielectric series, case size, lead spacing, electrical limits and approval documentation.

Qualification workflow

Six checks from circuit definition to controlled supply

1. Define the function

State the circuit position, waveform, operating mode and expected fault or transient events.

2. Confirm electrical stress

Voltage, current or kvar duty, frequency, switching, harmonics, pulse or discharge conditions.

3. Calculate heating

Loss, RMS stress, ambient, ventilation, cooling path and permitted temperature rise.

4. Lock the interface

Outline, terminals or leads, mounting, insulation, clearances and connection hardware.

5. Approve samples

Electrical behavior, temperature rise, fit, connection, insulation and application testing.

6. Control supply

Selected series, drawing, marking, inspection, packing, traceability and change requirements.

Ordering information

Send engineering and commercial requirements together

Application functionCircuit position, equipment type, waveform and operating sequence

Electrical dutyRating, continuous and transient stress, frequency, current spectrum, switching or discharge

Thermal environmentAmbient, enclosure, ventilation, cooling, duty cycle and life target

Mechanical interfaceOutline, terminals or leads, mounting, clearance, insulation and connection

Commercial programSamples, order and annual quantity, marking, documents, packing and delivery

Documents and approval basis

Release the selected series—not a generic headline rating

Request the current controlled datasheet, dimensional drawing, installation or connection information, inspection reference, packing specification and order-specific compliance records.

Final approval basis: controlled datasheet, controlled drawing, quotation and approved sample.

Frequently asked questions

Questions to resolve before sample approval

Is every 20µF 450V DC film capacitor a DC-link capacitor?

No. The selected series must be rated for the actual ripple current, dv/dt, temperature, voltage transients and service life.

What should sample testing include?

Check electrical behavior, temperature rise, physical fit, connection, insulation and performance under the real operating profile.

Can the mechanical format be customized?

Outline and terminal or lead options may be reviewed, but production requires an approved drawing and sample.

Which documents govern the order?

The selected-series datasheet, controlled drawing, quotation, approved sample and order-specific compliance records govern.

What information is needed for a replacement?

Send the original part number or datasheet, circuit duty, dimensions, terminals, environment and required approvals.

What determines MOQ and lead time?

The selected series, rating, construction, quantity, testing, marking, documentation and packing determine the result.

Engineering review

Check 20µF · 450V DC against the real application

Send the electrical profile, thermal environment, mechanical interface, qualification needs and quantities for review.

20uF 450V DC Capacitor

20µF 450V DC film capacitor for compact power circuits