SMD Package Sizes: 0402, 0603, 0805 and 1206 Compared
The dimensions behind the common chip resistor and capacitor package codes, typical power ratings, and how to choose a size you can actually assemble.
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Guides and articles
Component selection guides, design tips and store news from RVP System.
C0G vs X7R vs X5R vs Y5V: Choosing an MLCC Capacitor Dielectric
The dielectric code on a ceramic capacitor tells you how much its capacitance drifts with temperature, voltage and age. Here is what each code means and …
Read articleLM7805 vs AMS1117: Choosing a Linear Voltage Regulator
Dropout voltage, input range, heat and capacitor requirements for two of the most common linear regulators, with the heat calculation that decides whether either will work.
Read articleHow to Read Resistor Values: 4k7, 4R7 and SMD Codes Explained
What 4k7, 4R7, R47, 103 and 1002 actually mean, how the E12, E24 and E96 series work, and how to search for the exact resistor you …
Read articleChoosing a MOSFET for Switching: What "Logic-Level" Really Means
Why a MOSFET that works at 10 V can fail at 3.3 V, how to read Rds(on) correctly, and a checklist for switching loads from a …
Read articleATmega328P vs ESP32 vs STM32F103 vs RP2040: Choosing a Microcontroller
A practical comparison of four popular microcontrollers — core, memory, voltage, connectivity and what each one is genuinely good at.
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