Not sure yet but I believe the resistor is laser trimmed thin film. 10k seems like the sweet spot for the effect. I have done rather expensive high voltage resistors coming today. Will see how they do.
Doug Smith Sent from my iPhone IPhone: 408-858-4528 Office: 702-570-6108 Email: [email protected] Website: http://dsmith.org ________________________________ From: John Woodgate <[email protected]> Sent: Wednesday, April 30, 2025 9:00:34 AM To: [email protected] <[email protected]> Subject: Re: [PSES] Interesting resistor response What construction? Wirewound? Metal oxide? On 2025-04-29 05:11, doug emcesd.com wrote: I can apply a 1500 Volt by 70 ns long pulse (exponential decay) to a 10k Ohm 2 Watt 1% resistor and watch it breakdown many times internally (using a current probe) at a rate of 2 to 20 MHz!!! -- Best wishes John Woodgate RAYLEIGH Essex OOO-Own Opinions Only www.woodjohn.uk<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.woodjohn.uk&d=DwMCaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=-hvSTIEoqaKpXF-B480tz0JNN8p-ACFn0OniLRNDdlHHlR8xuA8sFk1PHvTgBMy1&s=enlHMQ-wTR2usTsH7UIDkGUFmGrPHL0mQOrwE87T8Ms&e=> If something is true: * as far as we know - it's science *for certain - it's mathematics *unquestionably - it's religion [https://s-install.avcdn.net/ipm/preview/icons/icon-envelope-tick-green-avg-v1.png]<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.avg.com_email-2Dsignature-3Futm-5Fmedium-3Demail-26utm-5Fsource-3Dlink-26utm-5Fcampaign-3Dsig-2Demail-26utm-5Fcontent-3Demailclient&d=DwMCaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=-hvSTIEoqaKpXF-B480tz0JNN8p-ACFn0OniLRNDdlHHlR8xuA8sFk1PHvTgBMy1&s=6bfnvouFCjcdweSlL-ahxXbKwhdVtscNcO2RCjiDwfc&e=> Virus-free.www.avg.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.avg.com_email-2Dsignature-3Futm-5Fmedium-3Demail-26utm-5Fsource-3Dlink-26utm-5Fcampaign-3Dsig-2Demail-26utm-5Fcontent-3Demailclient&d=DwMCaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=-hvSTIEoqaKpXF-B480tz0JNN8p-ACFn0OniLRNDdlHHlR8xuA8sFk1PHvTgBMy1&s=6bfnvouFCjcdweSlL-ahxXbKwhdVtscNcO2RCjiDwfc&e=> ________________________________ This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to [email protected] All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/[email protected]/<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.mail-2Darchive.com_emc-2Dpstc-40listserv.ieee.org_&d=DwMCaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=-hvSTIEoqaKpXF-B480tz0JNN8p-ACFn0OniLRNDdlHHlR8xuA8sFk1PHvTgBMy1&s=zTvACADctBDdHfbs3_mXP-Z2-iTV4B08bs6r7uOt6Cc&e=> Website: https://ewh.ieee.org/soc/pses/ <https://urldefense.proofpoint.com/v2/url?u=https-3A__ewh.ieee.org_soc_pses_&d=DwMCaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=-hvSTIEoqaKpXF-B480tz0JNN8p-ACFn0OniLRNDdlHHlR8xuA8sFk1PHvTgBMy1&s=PDmqD4yGzMlIzpQy3ZZrAoj-gaROb0kXs6MBJUed7ko&e=> Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe)<https://urldefense.proofpoint.com/v2/url?u=https-3A__ewh.ieee.org_soc_pses_list.html&d=DwMCaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=-hvSTIEoqaKpXF-B480tz0JNN8p-ACFn0OniLRNDdlHHlR8xuA8sFk1PHvTgBMy1&s=AgOOA1KC7jslybmyMSi-14P83cDXFrPCqWaxLFvZNlA&e=> List rules: https://pses.ieee.org/wp-content/uploads/2024/12/EM-PSTC-List-Rules.pdf<https://urldefense.proofpoint.com/v2/url?u=https-3A__pses.ieee.org_wp-2Dcontent_uploads_2024_12_EM-2DPSTC-2DList-2DRules.pdf&d=DwMCaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=-hvSTIEoqaKpXF-B480tz0JNN8p-ACFn0OniLRNDdlHHlR8xuA8sFk1PHvTgBMy1&s=RCWa5qCtS_0kNfX5yox3dyRft-SYlvbDyvxRwbZtCvI&e=> For help, send mail to the list administrators: Mike Sherman at: [email protected]<mailto:[email protected]> Rick Linford at: [email protected]<mailto:[email protected]> For policy questions, send mail to: Jim Bacher at: [email protected]<mailto:[email protected]> ________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1 - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to [email protected] All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/[email protected]/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://pses.ieee.org/wp-content/uploads/2024/12/EM-PSTC-List-Rules.pdf For help, send mail to the list administrators: Mike Sherman at: [email protected] Rick Linford at: [email protected] For policy questions, send mail to: Jim Bacher: <[email protected]> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
