Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »
Q&A

Comments on Is ESD overhyped?

Parent

Is ESD overhyped?

+8
−0

I have seen many engineers talk about ESD protection but I had never seen its effects myself. I made many small DIY projects and I have used bare hands to touch ICs and their pins,but nothing got destroyed(I mean ICs functioned well). Is it really that serious? Please tell and also its mitigating measures. I experimented with a mosfet just now by rubbing my fingers on its terminals. It is an n-channel mosfet called IRF510,and its datasheet is here . I observed that mosfet is working well by checking with a multimeter in diode mode i.e drain is connected to common of multimeter and source to positive one.

History
Why does this post require attention from curators or moderators?
You might want to add some details to your flag.
Why should this post be closed?

1 comment thread

General comments (4 comments)
Post
+3
−0

Just to let you know: if one day you have to use the LM337 negative voltage regulator, protect everything with TVS or Zeners. This is the most failing component I've ever seen (and I'm not the only one who thinks so, see youtube). I suspect strongly it is very sensitive to ESD. In my last application, after having replaced the LM337 for the 66th time, I protected it heavily and it finally stoped to fry.

History
Why does this post require attention from curators or moderators?
You might want to add some details to your flag.

1 comment thread

General comments (2 comments)
General comments
Lundin‭ wrote about 4 years ago · edited about 4 years ago

Slightly OT, but these parts absolutely hate voltage in reverse. A common design mistake with various linear regulators is to plug in an external voltage to the 5V etc plane and supplying that one from a MCU programming equipment. With no Vin present but 5V backwards on Vout, the regulator often breaks. This happens intermittently, so some parts might survive, some might live for a couple of months then die. You can prevent this with a schottky from Vout to Vin, or by always supplying from Vin.

coquelicot‭ wrote about 4 years ago · edited about 4 years ago

@Lundin. You say a Schottky from Vout to Vin. I did put a normal diode between Vout to Vin but this did not prevent the part to fry. Do you think a Schottky better protects the part than a normal diode ?