NC pins, also called unconnected or no-connect pins, are IC terminals with no internal connection and no external function. These are some of the most commonly used pin names for unconnected pins and how you’ll find them in component datasheets:* NC = No-Connect* DNC = Do Not Connect* DNU = Do Not Use What are…
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Using IEEE Symbols
Read moreWhat is IEEE? IEEE (pronounced as I, triple E) stands for Institute of Electrical and Electronics Engineers. This is an association that develops design-based, functional standards to follow in the electronics design industry. At SnapEDA, we create symbols based on IEEE 315-1975 standard (as well as ANSI, CSA and IEC approved symbols) and our own internal…
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What is a Solder Paste?
Read moreA Solder Paste, also known as Solder Cream, is a material used for mounting and soldering components to printed circuit boards. It is used in reflow soldering commonly for surface mount devices but it can also be used for through-hole components (pin-in-paste). The paste consists of flux and powder solder. The powder solder are tiny…
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What is a Solder Mask?
Read moreA Solder Mask (solder resist) is a protective layer applied to your PCB, generally applied on the top of the copper traces, to avoid short circuits due to solder shorting or solder bridging between components. PCB solder resist also gives additional protection to the board, preventing it from corrosion or any harmful environmental agents. The process…
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Understanding Through Hole Land Patterns
Read moreWhat is a punched hole? Should I use the drilled hole diameter or the finished hole diameter? I bet you’re thinking of those questions when trying to create your PCB land pattern for a through-hole component. At SnapEDA, our engineers analyzed different through-hole land patterns to help you produce the best libraries for your designs.…
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How to use search filters for finding CAD models
Read moreSearching for a part in SnapEDA has gotten easier! With our new search filters, engineers can find the parts they’re looking for much faster. Based on popular request, you can now filter your searches by: Data availability Datasheet Symbol Footprint 3D model Simulation model Manufacturer Compliance Stock availability To start using the search filter, follow…
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Top 5 Texas Instruments Operational Amplifiers (Op-Amps)
Read moreAn operational amplifier or widely known as Op Amp is a device consisting of inverting and non-inverting inputs with an output gain voltage. From the name itself, this device is mainly used to amplify a signal and it can also be used as a voltage comparator, filter, and voltage follower (buffer). If you are choosing…
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Schematic Symbols for Integrated Circuits
Read morePin naming, pin setting, and pin arrangement are the 3 most important factors to consider in creating a good symbol for your IC devices, being the primary element in schematic drawings. These factors will help designers create a direct and functional design to produce the desired electrical behavior. At SnapEDA, after many years of feedback…
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The Top 10 Microcontrollers For PCB Design
Read moreMicrocontrollers (MCUs) have come a long way since the pioneering 4-bit Intel 4004 hit the market back in the 1970s. Today, they’re the heart of most embedded systems, from automotive engine control systems, medical devices, toys, and more, serving as low-cost, compact, single chip computers. The beauty of MCUs is that they reduce the size and cost of the alternative:…
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