Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

high voltage resistors

high voltage resistors

high voltage resistors

Looking at thread240-431670: Sparkplug Clamp Pickup Sensor Circuit Fluke RPM80, I noticed the through hole resistors and was intrigued.

While this is probably an old design, I just checked and Panasonic only rates their 2512 SMD packages to 200V continuous, 500V peak (per ERJ2GE0R00X.pdf). Do we EEs still need to use through hole parts for higher voltages? I think the last time I worked on high voltage was before 0805 resistors were popular...


RE: high voltage resistors

For higher voltages with SMT I just use several 1206 resistors in series.

RE: high voltage resistors

Good points. I also use the multiple 1206s in a row. Doing it for those wacko clocks I'm building. You also want the boards 'clean'.

Keith Cress
kcress - http://www.flaminsystems.com

RE: high voltage resistors

High-voltage arcing between leads of a surface mount resistor is a real danger, too... sometimes having the separation provided by a TH component is useful.

Dan - Owner

RE: high voltage resistors

Panasonic, TE, and Vishay offer resistors in the 200-500V range. The disclaimers do start to get interesting at the high voltages...


RE: high voltage resistors

Thanks, Scotty. I also see Stackpole's UHV series goes up to 20K in SMD. They are out there!


RE: high voltage resistors

Reason I refuse to ever use Carlos Gavazzi crap ever again. They brought down a $24M flat panel fab machine by using a single SMD 1206 "high voltage" capacitor across the mains on SSR monitors. Then they had the gall to blame it in others even though there was a crater in the middle of their product, centered on the ill equipped capacitor. Smoke-in-a-clean-room.

Keith Cress
kcress - http://www.flaminsystems.com

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close