All Alternatives

Alternatives to onsemi FDC633N

onsemi FDC633N and its qualified second sources, compared on form, fit and function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

Equivalent and substitute parts for onsemi FDC633N

FDC633N compared against its qualified second sources
FDC633NonsemiRTQ020N03TRRohm SemiconductorRSQ045N03TRRohm Semiconductor+6more
FFF CompatibilityBoth parts share the same SOT-23-6/TSOP-6/TSMT6 footprint and identical pin configuration.The TSMT6 package has nearly identical physical dimensions and mounting style compared to the SuperSOT-6 package.The continuous drain current is significantly lower (2A vs 5.2A), power dissipation is lower (1.25W vs 1.6W), and maximum on-resistance is much higher (125 mOhm vs 42 mOhm @ Vgs = 4.5V).Both parts share the same SOT-23-6/TSOP-6/TSMT6 footprint and identical pin configuration.The TSMT6 package has nearly identical physical dimensions and mounting style compared to the SuperSOT-6 package.The continuous drain current is lower (4.5A vs 5.2A), power dissipation is lower (1.25W on ceramic / 0.6W on FR4 vs 1.6W on FR4), and maximum on-resistance is higher (51 mOhm vs 42 mOhm @ Vgs = 4.5V).
AI Summary

FDC633N by onsemi: N-Channel 30 V 5.2A (Ta) 1.6W (Ta) Surface Mount SuperSOT™-6.

The RTQ020N03TR is a physical drop-in alternative but offers significantly lower current handling and much higher on-resistance.

  • Pin-compatible footprint
  • Higher gate-source voltage limit (12V vs 8V)
  • Lower continuous drain current: 2A vs 5.2A
  • Lower maximum power dissipation: 1.25W vs 1.6W

The RSQ045N03TR physically drops in but has reduced continuous current, lower power dissipation on standard FR4 boards, and higher on-resistance.

  • Pin-compatible footprint
  • Significantly higher gate-source voltage limit (20V vs 8V)
  • Lower continuous drain current: 4.5A vs 5.2A
  • Lower maximum power dissipation: 1.25W on ceramic / 0.6W on FR4 vs 1.6W on FR4
Lifecycle StatusObsoleteActiveLast time buy
Market AvailabilityDiscontinuedIn stockIn stock
REACHUnknownREACHREACH
RoHSRoHSRoHSRoHS
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