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.
286
questions
1
vote
0
answers
50
views
MOSFET SOA: Isn't the package current limit-line ambient temperature dependent?
Ref 1 says "The package limit-line will not change in case application conditions such as ambient
temperature vary"
As explained in Ref2, this limit is due to bond wire heating/melting.
If ...
0
votes
0
answers
49
views
How to calculate the creepage distance of a package through package outline?
How do I calculate the creepage distance of a package which is not specified by the manufacturer?
By looking at the drawing of the package, could I calculate it? If yes then how?
1
vote
1
answer
477
views
Kicad - 0805 Hand soldered package
When I try to select a footprint for an 0805 resistor in Kicad, there are two options.
What is the difference between them and which one do I choose?
3
votes
1
answer
543
views
SOIC-8 package in KiCAD
I want to incorporate a chip in my design.
This is the datasheet:
https://datasheet.lcsc.com/lcsc/1809251831_Diodes-Incorporated-AZ34063UMTR-G1_C99659.pdf
It is an 8 pin SOIC package.
When I try to ...
1
vote
1
answer
165
views
Package and footprint - Are they correct
In this device, on page 208, the page has the Package outline drawing. 8-pin package. SOIC.
"8S2, 8-lead, 0.208” Body, Plastic Small
Outline Package (EIAJ)"
I want the footprint of this ...
4
votes
1
answer
111
views
Op-amp packages for PCB
I recently started to PCB design my circuit. Since I am new to PCB design I have some difficulties. I want to know if I can use different op-amp packages for my design. I selected components but they ...
0
votes
2
answers
69
views
Can a vertical multiwatt package be bent to lie horizontal after it is installed?
I am working on a project with a multiwatt package audio amplifier IC.
Can this component be bent over to lie horizontal, flush with the PCB, after it is soldered into place?
5
votes
3
answers
2k
views
Question on "Parts should be used within 5 days after opening." statement on component shipping package
I've been given the task of verifying a batch of ICs from a chinese broker, to see that the chips the company has bought are what the broker claims they are. The package we've received looks like this,...
12
votes
12
answers
3k
views
Why are there no single logic gates in through-hole packages?
If I'm not mistaken, single logic gates (i.e. a single NOT, OR, NOR, AND, NAND, XOR, etc.) do not exist (anymore?) in through-hole packages.
At least, on Digikey, when searching for active in-stock ...
5
votes
5
answers
2k
views
Is the larger package better for SMD capacitors?
Is a capacitor with a greater package number better than a smaller package number capacitor with the same voltage and obviously same capacity?
For example, is it true that a 50 V, 100 nF X7R ±10% 1812 ...
0
votes
2
answers
86
views
Does the electrical parameters of a packaged transistor change from bare die transistors?
When comparing the electrical parameters of the MOSFET/Transistors, do they change when the package type changes? Are the parasitic parameters of the packaged MOSFET and bare die MOSFET change.
It is ...
0
votes
1
answer
54
views
What does the interface between lead(s) and the silicon chip look like inside a semiconductor package?
For a leaded semiconductor, like a diode or a transistor, one of the leads is usually the same piece of metal as the copper pad/heat spreader on the back, which is also shorted to one of the junctions ...
1
vote
1
answer
120
views
What is the type of material used for the casing of semiconductors?
I am trying to build some thermal models for leaded and surface-mount diodes and transistors.
Below is a picture of the TO-220 outline I got from the internet. What kind of material is the black part ...
1
vote
1
answer
65
views
Identify high-voltage power board component by its packaging and internal structure
A component (perhaps a MOSFET) on a generator inverter board blew up. All that's left are the legs and the heat sink. Is it possible to make a good guess as to the model and the manufacturer, given ...
0
votes
1
answer
113
views
Socket or Surface Mount Adapter? (SOP16 to DIP16)
I'm looking to use a HX711 chip (which says it's a SOP-16L package,) and attach it to a circuit on a breadboard.
I've found two ways to do so: a socket or just the adapter.
Is there any difference ...