# \#isolators-gate-drivers

**URL:** https://forum.digikey.com/tag/isolators-gate-drivers/4236.md

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## [Opto-coupler identify](https://forum.digikey.com/t/opto-coupler-identify/69885)

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**Author:** [@SavanPatel](https://forum.digikey.com/u/SavanPatel)\
**Replies:** 1\
**Last updated:** [June 19, 2026, 1:15pm UTC](https://forum.digikey.com/t/opto-coupler-identify/69885 "2026-06-19T13:15:09Z")

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Hi, Can someone help me to identify this optocoupler. There are six of these in PowerFlex 755 125HP drive. Marked on component - "R9905 N250 "

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## [Alternative for SI8274AB4D-IM1 from Skyworks Solutions](https://forum.digikey.com/t/alternative-for-si8274ab4d-im1-from-skyworks-solutions/59918)

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**Author:** [@shawn\_adams](https://forum.digikey.com/u/shawn_adams)\
**Replies:** 0\
**Last updated:** [September 5, 2025, 7:45pm UTC](https://forum.digikey.com/t/alternative-for-si8274ab4d-im1-from-skyworks-solutions/59918 "2025-09-05T19:45:41Z")

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The SI8274AB4D-IM1 isolator from Skyworks Solutions Inc. has now been rendered obsolete. Use the link below for a similar alternative. Please review the datasheets to ensure the alternative will work for your application…

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## [Dc-dc 4 switches buck-boost converter from min 3, max 4.2V Vin to programable Vout from 2V2A to 5V5A](https://forum.digikey.com/t/dc-dc-4-switches-buck-boost-converter-from-min-3-max-4-2v-vin-to-programable-vout-from-2v2a-to-5v5a/51209)

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**Author:** [@sc.bh](https://forum.digikey.com/u/sc.bh)\
**Replies:** 4\
**Last updated:** [February 17, 2025, 7:07pm UTC](https://forum.digikey.com/t/dc-dc-4-switches-buck-boost-converter-from-min-3-max-4-2v-vin-to-programable-vout-from-2v2a-to-5v5a/51209 "2025-02-17T19:07:32Z")

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Hi As a hobbyist, i’m working on a dc-dc buck-boost 4 switches converter (4 MFets or 2 MFets + 2 schotky diodes) abble to work with one 18650 Li-Ion better as vin (3V Vin-min, 4.2V Vin-max) and to deliver an output cont…

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## [Using IS480P](https://forum.digikey.com/t/using-is480p/23195)

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**Author:** [@gjecon2](https://forum.digikey.com/u/gjecon2)\
**Replies:** 3\
**Last updated:** [June 20, 2022, 3:37pm UTC](https://forum.digikey.com/t/using-is480p/23195 "2022-06-20T15:37:19Z")

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I’m trying to use an IS480P in connection with a MOSFET to safeguard an Arduino from high voltages on the other side of the MOSFET, should the MOSFET’s insulation wear down with time. The problem is that I can’t quite se…

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## [PC929 and PC923 cross](https://forum.digikey.com/t/pc929-and-pc923-cross/8584)

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**Author:** [@monty](https://forum.digikey.com/u/monty)\
**Replies:** 5\
**Last updated:** [September 8, 2020, 9:46pm UTC](https://forum.digikey.com/t/pc929-and-pc923-cross/8584 "2020-09-08T21:46:21Z")

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I’m looking for a cross for opto couplers PC929 and/or PC923. Thank you

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## [Gate Driver Suggestion](https://forum.digikey.com/t/gate-driver-suggestion/5405)

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**Author:** [@Willd](https://forum.digikey.com/u/Willd)\
**Replies:** 3\
**Last updated:** [February 4, 2020, 5:26pm UTC](https://forum.digikey.com/t/gate-driver-suggestion/5405 "2020-02-04T17:26:18Z")

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Hello, I’m looking for a gate driver for IXTP6N100D2 . This is a Depletion mode, N channel mosfet. I first looked for smart gate drives, but I think is too much for the purpose of switching applications. I have an input…