[Place on the top] Kt Kingtronics Good Quality Package

High Voltage Film Capacitors in EV Charging and Renewable Energy Systems

26 Aug 2025

Kingtronics International Company — Inspired by Innovation

When engineers search for high voltage film capacitors, EV DC link capacitors, or renewable energy capacitors, they expect components with long-term stability, low dissipation factor, and reliable insulation resistance. As a professional manufacturer, Kingtronics provides the FKT-AC and FKT-AD axial polypropylene (PP) film capacitors, designed for EV charging stations, solar inverters, and industrial control systems.

Watch our factory in action — manufacturing capability & quality control for film capacitors.

Why Polypropylene (PP) Film Capacitors for EV & Renewable Systems?

  • High Voltage Range: suitable for DC link & inverter nodes in EV chargers and renewable systems.
  • Low Dissipation Factor: enables higher efficiency under switching frequencies.
  • Wide Operating Temperature: reliable performance in harsh environments.
  • Self-healing Property: enhances long-term stability and safety.
  • Flexible Options: axial construction (cylindrical / oval), broad capacitance selections.

Axial Film Capacitors — Series at a Glance (PP vs PET)

Series Dielectric Typical Applications Voltage / DF / Temp* Notes
FKT-AC / FKT-AD Polypropylene (PP) EV charging DC link, solar/wind inverters, industrial control High voltage capability; low dissipation factor; wide operating temperature. Engineer-centric; reliability-focused.
FKT-AA / FKT-AB Polyester (PET) Audio crossovers, DIY/consumer, household electronics Broad capacitance options; compact size; stable for signal/AC coupling in audio. Community-oriented; case-based content.

* For exact ratings (voltage range, dissipation factor by frequency, operating temperature, dimensions), please refer to each series datasheet on the product page.

Applications

  • EV Charging Stations — DC link & filtering in fast chargers (high voltage film capacitor / EV film capacitor).
  • Solar & Wind Inverters — renewable energy capacitor for long-term stability and efficiency.
  • Industrial Power Control — drives, UPS, automation (reliable axial film capacitors / DC link capacitors).
Explore ProductsContact Us (RFQ / Samples)

By partnering directly with a film capacitor manufacturer, you gain consistent quality, reliable lead times, and flexible supply for your EV, renewable, and industrial projects.

Keywords: high voltage film capacitor, EV film capacitor, DC link capacitor, renewable energy capacitor, axial film capacitor, polypropylene film capacitor, industrial control capacitor, solar inverter capacitor, manufacturer.

Axial polypropylene film capacitors for EV charging DC link and renewable energy inverters

Why a Smarter Website Means Faster Business Decisions

25 Aug 2025

Kingtronics International Company — Inspired by Innovation

Engineers often waste hours searching for electronic components online, verifying datasheets, and comparing parts across multiple sites. Our smarter platform centralizes component search, datasheet downloads, and BOM search, helping you make sourcing decisions faster and with confidence.

🎥 Watch how engineers worldwide use our website for faster datasheet access and smarter sourcing decisions.

Our new website is designed to deliver:

  • Save Time → Find capacitors, diodes, resistors in seconds with quick search
  • Ensure Accuracy → Get instant datasheet downloads without delay
  • Decide Smarter → Compare parts and run BOM search to cut procurement workload
  • Build Trust → Source from a global trusted supplier of electronic components

With our platform, engineers can run quick component sourcing, access reliable datasheets instantly, and manage their BOM search with fewer errors. This makes sourcing faster, easier, and more reliable for global buyers and design teams.

👉 Explore the new website

Kingtronics New Website

 

How to Select the Right Diode or Rectifier for Your Circuit

20 Aug 2025

Kingtronics International Company — Inspired by Innovation

Introduction: Why Diode Selection Matters

For many engineers, selecting the right diode or rectifier is not as simple as checking a datasheet. The challenge lies in balancing multiple parameters—voltage, current, recovery time, and package type— while ensuring long-term reliability. This diode selection guide simplifies the process into clear rectifier selection steps that reduce design risks and improve efficiency.

1. Types of Diodes You Should Know

Before diving into how to choose diode for your design, let’s review the key categories:

  • Schottky Diodes – Low forward voltage drop, fast switching, ideal for power supplies and high-frequency circuits.
  • Fast Recovery Diodes – Optimized for reduced reverse recovery time, commonly used in lighting drivers, motor control, and industrial automation.
  • TVS (Transient Voltage Suppression) Diodes – Protect sensitive circuits from ESD, surges, and transient spikes. Essential in automotive, communication, and industrial environments.
  • General Rectifiers – Reliable, high-voltage devices used for AC/DC rectification and industrial power systems.

Diode & Rectifier Selection Guide Table

Type Key Features Typical Applications Explore Products
Schottky Diode Low VF (0.2–0.4V), very fast switching, low power loss Power supply rectification, DC-DC converters, RF circuits View Schottky Series
Fast Recovery Diode Short reverse recovery time, moderate VF, high efficiency LED drivers, motor control, industrial automation, SMPS View Fast Recovery Series
TVS Diode Transient voltage suppression, protects against ESD & surges Circuit protection, automotive, communication, consumer electronics View TVS Series
General Rectifier High voltage rating, high surge current capability, reliable AC/DC rectification, power adapters, industrial power supply View Rectifier Series

Engineers can simplify component sourcing by choosing from manufacturers who provide full series coverage. Kingtronics offers a complete range of Schottky, Fast Recovery, TVS, and General Rectifiers — all with international certifications and competitive lead times.

2. Key Selection Criteria (Rectifier Selection Steps)

When working through rectifier selection steps, always evaluate these critical factors:

  • Voltage Rating (VR, VRRM): Select a diode rated at least 20–30% above the circuit’s peak operating voltage.
  • Current Rating (IF, IFSM): Ensure the device can handle both steady load current and surge currents during startup or transients.
  • Forward Voltage Drop (VF): Lower VF improves efficiency and reduces heat loss, especially in power supply designs.
  • Reverse Recovery Time (trr): Critical in high-speed switching applications such as SMPS or motor drives.
  • Package Type (SMA, SMC, DO-214, etc.): Choose based on board space, thermal dissipation, and assembly method.

3. Common Mistakes & How to Avoid Them

Even experienced engineers can misstep when selecting diodes:

  • Choosing voltage too close to operating margin
    → Always add safety headroom.
  • Ignoring surge current (IFSM)
    → Verify startup/inrush tolerance, not just average current.
  • Overlooking thermal considerations
    → Small SMD packages may fail under sustained load.
  • Confusing diode functions
    → A Schottky diode cannot replace a TVS in surge protection.

4. Application Examples

Practical use cases of how to choose diode effectively:

  • Power Supply Circuits – Schottky diodes improve efficiency and reduce power loss.
  • Lighting Systems – Fast recovery diodes provide stable performance in LED drivers.
  • Industrial Control – High-surge rectifiers enhance reliability in automation systems.
  • Circuit Protection – TVS diodes safeguard ICs from unexpected voltage spikes.

5. Simplifying the Selection Process

Pain Point: Engineers often face complex datasheets and ambiguous specs.
Highlight: A structured diode selection guide reduces guesswork and minimizes design errors.

Simple process flow:

  1. Define application requirements (voltage, current, switching speed).
  2. Identify the correct diode category (Schottky, Fast Recovery, TVS).
  3. Match package type and thermal performance.
  4. Validate surge and recovery specifications.

6. Extended Learning: Video Resource

▶ Watch this video for a visual introduction to diodes and rectifiers:

Diode & Rectifier selection guide video

The video not only explains diode categories but also takes you inside Kingtronics’ factory, showing how strict quality processes ensure product reliability and performance.

Conclusion & Next Steps

Selecting the right diode or rectifier doesn’t have to be overwhelming. By following these rectifier selection steps, you’ll simplify the process, reduce design risks, and ensure better performance for your circuit.

Whether you are designing a new power supply, upgrading industrial control systems, or protecting sensitive circuits, Kingtronics provides not only a comprehensive diode portfolio, but also engineering support to guide you through the selection process.

👉 Explore our full range of Diodes & Rectifiers
👉 Need help with your design? Contact our technical team

Diode & Rectifier selection guide illustration

3 Features that Make Your Component Search Easier – Faster Sourcing, Smarter Tools

13 Aug 2025

Electronics Website Tools that cut your search steps in half. Compare specs, download datasheets, and send inquiries instantly — all in one place.

Quick Intro — See How It Works

Curious how many clicks you’ll save?

What happens if you only know a partial part number? Click to reveal

 

Can you compare series without opening dozens of tabs?

 

Feature 1 — Quick Search

Search by part number, series name, or keyword. The smart interface finds the right component in seconds on desktop or mobile.

  • Fewer clicks to the right product
  • Flexible matching for incomplete model numbers
  • Mobile-friendly for fast lookups

Feature 2 — Clear Categories & Navigation

Filter by voltage, package, capacitance and more — no more juggling tabs. It streamlines BOM verification and speeds shortlisting.

Feature 3 — One-Click Datasheets & Instant Inquiry

Each product page offers one-click datasheet downloads and a simplified inquiry form for quotes or technical questions.

  • Always-up-to-date specifications
  • Side-by-side series comparison
  • Direct support from the Kingtronics team

Real-world example: A power-electronics team used Quick Search and one-click downloads to finalize a BOM, cutting sourcing time by 40% before sending an inquiry the same day.

Replicate This Flow

Start in Just 3 Simple Steps

Stop switching between tabs. With Kingtronics Electronics Website Tools, you can search, compare, and inquire in one smooth flow.

Electronics Website Tools — 3 features that make your component search easier: faster sourcing, smarter tools

[«]1[»]

Contact us

Tel: (86) 769 8118 8110
Tel: (852) 8106 7033
Fax: (852) 8106 7099
E-mail: info@kingtronics.com
Microsoft Teams: Kingtronics.sales via Teams
WhatsApp: Chat with us on WhatsApp
Web: www.Kingtronics.com
YouTube: www.youtube.com/c/Kingtronicskt

About

Kingtronics International Company was established in 1995 located in Dongguan City of China to handle all sales & marketing for factories located in Chengdu, Sichuan and Zhaoqing, Guangdong, China. In 1990, we established the first factory to produce trimming potentiometer and in 1999 we built up new factory in Zhao Qing, Guangdong. Now with around 850 workers, Kingtronics produce trimming potentiometers, dipped tantalum capacitors, multilayer ceramic capacitors, and diode & bridge rectifier. We sell good quality under our brand Kingtronics, and Kt, King, Kingtronics are our three trademarks. All our products are RoHS compliant, and our bridge rectifier have UL approval. Please visit our Products page, you could please download all our PDF datasheet and find cross reference for our Trimming Potentiometer and capacitors.

Tantalum and Ceramic Capacitors Cross Reference ↓ Download
Diodes & Rectifiers List(PDF: 97KB) ↓ Download
Trimming Potentiometer Cross Reference ↓Download

Categories

Archives

Calendar


Copyright 1990 www.kingtronics.cn. Some Rights Reserved. MLCC Capacitors