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Questions tagged [packages]

In electronics packages refer to the physical encapsulation of a device. Most package names are standardized, so for example a TO-92 package will have similar dimensions and pin spacing between manufacturers so the same PCB footprint may be used. Be aware however many packages have subtle variations, for example TO-206AA, TO-206AB and TO-206AC.

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Are IC rail tubes sufficient protection for ESD-safe storage?

I've ended up with a collection of spare IC chips and am wondering what lengths I need to take to store them properly with respect to ESD. Depending on their size they tend to come from the supplier ...
natevw's user avatar
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3 votes
1 answer
239 views

What are my options for packaging a WLCSP IC as a DIP?

Hypothetically, let's say I have a chip in a super small WLCSP or BGA package that I want to have packaged as a plastic or ceramic DIP. No extra components; just the pads brought out to pins. Are ...
David Brown's user avatar
2 votes
2 answers
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Pin 1 in OPA237UA in SO package

I have built some circuit and it doesn't work. Can I ask if my interpretation of datasheet is correct? There is no hole, no proper dot on my package, but there is a symbol with 2 concentric circles ...
Kamil's user avatar
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3 votes
2 answers
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To-scale images useful for comparing sizes of small (SOT23 and smaller) packages typical for discrete transistors or diodes?

Is there a to-scale image available somewhere that shows SOT23, SOT323, SOT523, etc. packages used typically for discrete transistors or diodes, so that someone without access to a PCB layout program ...
Jason S's user avatar
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1 vote
1 answer
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Is APDS-9253 pinout really inverted?

I'm drawing the footprint for APDS-9253 and in the datasheet I'm looking at package drawings. As far as I understand, the top-left drawing is a view from component side, the top-right one from solder ...
Mark's user avatar
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1 vote
1 answer
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Is this a crystal oscillator?

I've never encountered anything in this package. Is it a crystal oscillator? What are the six pins used for? Would it potentially be ovenized? All I know is that the manufacturer is Kyocera. Any help ...
crossroad's user avatar
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0 votes
3 answers
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What is the difference between package description and package option?

I am making an ECG sensor schematic on EAGLE and I am concerned if this is something I should be taking into account while designing?
Shridhar Sharma's user avatar
1 vote
1 answer
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resistor package size

I am using EasyEDA to design some PCBs, and I am trying to figure out what package to use for your basic 1/4w resistor. The options are- R-Alial-0.3 R-Alial-0.4 R-Alial-0.5 R-Alial-0.6 R-Alial-0.8 R-...
Randomaker's user avatar
1 vote
5 answers
2k views

Resistors - proper SMD package for newbie

I will be designing an Arduino shield in KiCAD. This will be my first project in KiCAD. Considering I am a newbie in PCB design and I will be performing the soldering, what is the correct package size ...
user1584421's user avatar
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1 vote
0 answers
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How to read data from Agilent 34401a using GPIB-USB-B connection

I want to read data from an Agilent 34401a DMM directly into python or matlab so the data can be automatically recorded. However, I can't seem to make the connection. On my computer the device is ...
sqph's user avatar
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How do you do Electro-mechanical Assembly Documentation?

I realize this isn't specifically EE theory related, but I hope EE documentation advice falls within the scope of this forum! For example, I have an enclosure from a mechanical engineer, and their ...
vkaiser's user avatar
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1 answer
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SSOP package differences

I want to buy an SMD IC. More specifically, this one: https://www.ti.com/product/SN74CBT3251#order-quality I looked at the page and it offers: SSOP (DB) SSOP (DBQ) TSSOP (PW) I have this IC and i ...
user1584421's user avatar
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5 votes
1 answer
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What is the difference between TO-3 and TO-204AA packaging?

I am trying to build a circuit for a power amplifier and TO-204AA is the packaging used in the circuit diagram. KiCad does not have TO-204AA but it has TO-3. Looking at the image below you will see ...
Shridhar Sharma's user avatar
0 votes
1 answer
44 views

Connect crystal to low jitter clock generator

I have this TSX-3225 25MHz crystal. It has two outputs (pin3 and pin1). I want to connect it to the CDCM61001 low jitter clock generator. The CDCM61001 has one crystal input (XIN). Should I connect ...
electrococuk's user avatar
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0 answers
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Reducing Thermal Pad Size Below Official Footprint - Can It Create Manufacturability Problems?

I'm using a DP83867 Ethernet chip by Texas Instruments in an S-PQFP-G64, 10 x 10 mm package, the mechanical dimension and its recommended footprint are shown at the end of the question. As shown, the ...
比尔盖子's user avatar
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