Passive Components Selection Guide for Power Supply Manufacturers

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Designing a reliable power supply circuit requires more than just active ICs and controllers. Passive components such as capacitors, resistors, inductors, and transformers form the backbone of power management, voltage regulation, and filtering systems in SMPS, chargers, LED drivers, and inverter circuits.
What are Passive Components?

Passive components are electronic components that do not amplify or generate energy. They simply absorb, store, or release energy in a circuit. The most common passive components used in power supply designs include:

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Testing Ripple Current of Electrolytic Capacitor with Oscilloscope

Ripple Current in Electrolytic Capacitors – A Crucial Guide for Circuit Designers & OEMs

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When designing or repairing electronic circuits, we often focus on capacitance and voltage ratings. But one crucial parameter that gets overlooked is Ripple Current. Ignoring ripple current ratings can lead to overheating, component failure, and reduced lifespan of your entire device.

In this article, we’ll explain what ripple current is, why it’s critical in capacitor selection, and how you can ensure you’re using capacitors that handle ripple effectively. Plus, we’ll guide you on sourcing high-ripple JWCO LF Series capacitors from DDS International – the Authorised Distributor of JWCO in India.

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Electrolytic Capacitors Selection Guide for OEM and Industrial Use

Top Factors to Consider Before Buying Electrolytic Capacitors in Bulk – Trusted by OEMs in India

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Electrolytic capacitors are essential in almost every electronic design—from basic LED drivers to high-frequency inverter circuits. But with so many ratings and brands available, how do you pick the right electrolytic capacitor for your specific application?

In this guide, we’ll break down everything OEMs, R&D engineers, and repair technicians need to know about selecting the right capacitor—and where to buy genuine, high-performance JWCO capacitors from an authorised source in India.

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Bulk JWCO LF Series Electrolytic Capacitors – Long Life and High Voltage Radial Components

Why JWCO LF Series Electrolytic Capacitors Are a Top Choice for Industrial & Power Applications

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JWCO LF Series Electrolytic Capacitors – Long-Life Performance for Critical Applications

Why the JWCO LF Series is the Preferred Choice for Industrial and Electronic Applications

When it comes to designing circuits that demand long-life, high-stability capacitors, OEMs and engineers consistently choose the JWCO LF Series Electrolytic Capacitors. Known for their exceptional durability, wide voltage range, and superior ripple current handling, these capacitors are an ideal fit for industrial machinery, automation panels, consumer electronics, and energy systems.

As an authorised distributor of JWCO in India, DDS International supplies only genuine, RoHS-compliant LF Series capacitors, ready for bulk purchase with technical support and reliable delivery.

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Assorted Capacitor Types from JWCO, Edzeal, DVAN & NDF – Electrolytic, Ceramic, SMD, DIP

Avoid These Costly Capacitor Mistakes – A Guide for OEMs, Engineers & Buyers

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Top 10 Mistakes to Avoid When Using Capacitors – And How to Fix Them

Capacitors are at the heart of every reliable electronic circuit. But even experienced technicians and OEMs make simple mistakes that can lead to faulty designs, early component failure, or expensive rework.

In this guide, we’ll walk you through the Top 10 capacitor usage mistakes, how to avoid them, and how to choose the right brand and type for long-term reliability.

DDS International is the Authorised Distributor of JWCO capacitors in India, and we proudly own the Edzeal brand – trusted for quality, performance, and value. We also supply DVAN, NDF, and a wide range of high-quality capacitors to OEMs and bulk buyers nationwide.

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Various capacitor types including DIP ceramic, electrolytic, and MOV capacitors from DVAN, NDF, JWCO, and EDZEAL brands used in power supplies and PCBs

Capacitor Testing Made Easy: Methods for OEMs, Technicians & Repair Experts

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How to Test a Capacitor: Simple Steps for Technicians & OEMs

Capacitors are crucial in nearly every electronic device—from power supplies and LED drivers to audio systems and industrial boards. When circuits start acting up, a faulty capacitor is often the culprit. So, how do you test a capacitor to be sure it’s working properly?

Whether you’re an OEM, service engineer, or electronics manufacturer, this guide will show you exactly how to check a capacitor with and without a multimeter—quickly and accurately.

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Jwco All capacitors from Edzeal Authorised distributor of Jwco In India

Explore JWCO Capacitor Range – Authorized Distributor DDS International (Edzeal)

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Buy JWCO Capacitors in India – KM, LF, SMD & Solid Capacitor Range

When it comes to building reliable and long-lasting electronic circuits, choosing the right capacitors is critical. Among the various brands available globally, JWCO capacitors stand out for their exceptional quality, durability, and affordability.

At DDS International, we are proud to be the authorized distributor of JWCO capacitors in India. Through our online brand Edzeal, we supply a comprehensive range of JWCO capacitors including KM series, LF series, SMD electrolytic capacitors, and solid capacitors—suitable for industrial, commercial, and hobbyist applications.

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Buy KM and LF Series Electrolytic Capacitors in India | JWCO Authorized Distributor

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Electrolytic capacitors are one of the most essential components in modern electronics. Known for their high capacitance and energy storage capacity, they are found in power supplies, amplifiers, motor controllers, and more. Whether you’re working on consumer electronics or industrial machines, using the right capacitor ensures performance and durability.

In this blog, we explore what electrolytic capacitors are, how they work, key applications, and why JWCO’s KM and LF series capacitors — distributed by DDS International Edzeal in India — are trusted by engineers and manufacturers alike.

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Detailed View of Common Electronic Components

Understanding Electronic Components: Types and Their Functions​

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Electronics power everything from our smartphones to industrial automation systems. Behind these technologies are electronic components—the essential building blocks of all electronic circuits.
What Are Electronic Components?
Electronic components are physical devices used to affect the flow of electrical current in a circuit. They can store energy, amplify signals, convert electrical energy, or control flow. These components fall into two categories:

Active Components: Require a power source (e.g., transistors, ICs).
Passive Components: Do not require external power (e.g., resistors, capacitors).
Types of Basic Electronic Components

Switches
Used to open or close a circuit manually. Types include rocker, push-button, toggle, and micro switches.

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Comparison of PCB-mounted and panel-mounted rocker switches with labeled illustrations showing installation differences

PCB‑Mounted vs. Panel‑Mounted Rocker Switches: What’s the Real Difference?

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PCB‑Mounted vs. Panel‑Mounted Rocker Switches: What’s the Real Difference?
If you’ve ever worked with electronics, you’ve likely come across rocker switches. They’re those little buttons you press to turn something ON or OFF—like on a power strip or your coffee machine. But did you know that not all rocker switches are the same?

In fact, how a rocker switch is mounted—whether it’s on a circuit board or on a front panel—makes a big difference in how it works and where it’s used. So, let’s break down the difference between PCB-mounted and panel-mounted rocker switches, in a way that’s easy to understand (no engineering degree needed!).

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