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0 votes
2 answers
108 views

Is VSSOP-8 packaging any different from SOP-8?

Are these two packaging titles similar with different names or is there actually a difference? (please provide both sizes in mils if different) The device in question is a INA821
hmg373's user avatar
  • 9
1 vote
1 answer
100 views

What kind of package is this? Expected a tsop flash but I don't know

I'm a beginner in the electronics world. I opened this Chinese bootleg Sega genesis cartridge and in the place I expected to find a tsop flash chip I found this kind of adapter board with a package ...
Miguel Ángel's user avatar
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,...
Lars Petersson's user avatar
5 votes
2 answers
627 views

Why do some exposed pads have small tabs, and does my PCB footprint need them?

I've noticed a few component packages now that have small "tabs" on the sides of their exposed pad (thermal pad). One example is the Analog Devices ADM7154 LDO: Note the 0.356 x 0.457 mm ...
TypeIA's user avatar
  • 2,426
0 votes
0 answers
241 views

TQFP socket for QFP package

I'm trying to get data off of this IC, and I'm having trouble finding a suitable package. In addition, I need to test ~5 of these on the same PCB, so I need to use a socket. The problem is, I need ...
Brian DeHority's user avatar
-2 votes
1 answer
378 views

please identify 5-Pin R1K SOT-23 Package

[![like this ][top mark ][R1K] in the topmark R1K
ali's user avatar
  • 29
0 votes
1 answer
108 views

How can I get a full guide to choosing the right IC package?

I often find a variety of IC packages options for one chip. I select among them randomly according to the availability, despite my concern about the vibration and shock reliability I googled ...
Haitham AlHazmy's user avatar
0 votes
1 answer
63 views

Is it a bug in the design of a low side UCC27524A, and 2EDN7424 gate driver if it doesn't use VDD capacitor?

I am using low-side TI and Infineon gate drivers. If I don't use a VDD capacitor, then there is a glitch in the output waveform as shown in the figures. It seems it's the designer's or layout problem ...
Lucky's user avatar
  • 7
0 votes
1 answer
976 views

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
  • 1,369
1 vote
1 answer
283 views

Dual Inline Package and Chip

I am checking out for dual-inline packages for my chip (which I want to insert in DIP) and I came across some products from Analog Devices, Texas Instruments and NTK Ceramics. However, NTK Ceramics ...
Basit Ali's user avatar
1 vote
1 answer
375 views

Why have the same chip in the same package, but with a different number of pins?

STMicroelectronics offers the following two accelerometer chips. The LIS2DW in a 14 pin LGA package The LIS2DW12 in a 12 pin LGA package These two chips are functionally equivalent and have the same ...
ajheck's user avatar
  • 113
0 votes
2 answers
109 views

Is integrated circuit packaging copyrighted/patented? [closed]

A friend of mine is interested in manufacturing ICs. He wants to know whether the different form types of packages (DIP, LGA, BGA) have intellectual property obstacles to using them. If so, who owns ...
Larry B.'s user avatar
  • 103
3 votes
3 answers
854 views

Identifying pin 1 of Analog Devices REF195

I have the Analog Devices REF195GSZ, and it doesn't have a circle on either the top or bottom by a pin to indicate pin 1. Looks like this: Which is pin 1? The datasheet didn't seem to help either: ...
Alex's user avatar
  • 284
2 votes
2 answers
424 views

Have SO(P)X components 2.54mm, 1.27mm or smaller pin spacings?

I'm a bit confused about the pin spacings of SO8/SOP8. Example: in Detail 2.54 SOP8, pin spacing is 2.54mm. However, according to Small_Outline_Integrated_Circuit, fragment: Small-outline package ...
Michel Keijzers's user avatar
25 votes
2 answers
6k views

Why do radiation hardened IC packages often have long leads?

What purpose do long leads serve?
Dojo's user avatar
  • 949

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