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ORIGINAL COMPONENT

BSS138

onsemi · 50 V n-channel MOSFET · SOT-23

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Original component and up to three alternatives
SpecificationOriginalBSS138onsemiAlternative 1BSS138-7-FDiodes IncorporatedAlternative 2No verified matchAlternative 3No verified match
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ReviewOriginal part Needs engineering review——
PackageSOT-23SOT-23——
ChannelN-channelN-channel——
Drain-source voltage50 V50 V——
Gate-source absolute limit±20 V±20 V——
Drain current220 mA at TA = 25 °C; minimum pad200 mA at TA = 25 °C; see board conditions——
On-resistance (max)3.5 Ω at VGS = 10 V, ID = 220 mA3.5 Ω at VGS = 10 V, ID = 220 mA——
Pinout1 gate · 2 source · 3 drain1 gate · 2 source · 3 drain——
Threshold voltage0.8–1.5 V at ID = 1 mA0.5–1.5 V at ID = 250 µA——
Low-drive on-resistance6 Ω at VGS = 4.5 V, ID = 220 mANot specified in checked table——
Details
Datasheets

BSS138 datasheetRev. 7, Apr 2024 · 1–3; package outline

Differences & datasheets
  • Threshold measurement conditions differ. Diodes' checked table does not guarantee on-resistance at 4.5 V.
  • Do not infer logic-level suitability from threshold voltage. Use a guaranteed on-resistance at the actual gate drive.
  • Respect the candidate's lower limits where applicable and verify SOA, body diode, switching loss, and PCB thermal design.
  • Gate charge, avalanche rating, switching timing, complete temperature curves, and assembly tolerances are not fully matched.

BSS138 datasheetDS30144 Rev. 25-2, Jun 2024 · 1–2; package outline

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Original datasheet

BSS138 datasheetRev. 7, Apr 2024 · 1–3; package outline

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