All Alternatives

Alternatives to UMW AMS1117-3.3

UMW AMS1117-3.3 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 UMW AMS1117-3.3

AMS1117-3.3 compared against its qualified second sources
AMS1117-3.3UMWNCP1117ST33T3GonsemiAZ1117H-3.3TRE1Diodes Incorporated+3more
FFF CompatibilityShares the exact SOT-223 footprint and identical pin assignment (Pin 1: ADJ/GND, Pin 2: VOUT, Pin 3: VIN, and Tab: VOUT) as the queried part.Shares the identical physical SOT-223 body dimensions and surface-mount style.While it matches the 1A output current and has a higher 20V input maximum, its operating junction temperature is rated up to 125°C compared to the original 150°C.Pinout configuration is identical to the target part with Pin 1 as ADJ/GND, Pin 2/Tab as VOUT, and Pin 3 as VIN.Housed in the identical SOT-223-3 physical package footprint.Matches the 1A current output, but has a lower absolute maximum input voltage of 15V compared to the original 18V.
AI Summary

AMS1117-3.3 by UMW: Linear Voltage Regulator IC Positive Fixed 1 Output 1A SOT-223-3L.

This is a highly reliable alternative from onsemi that provides the same 1A current capacity. It features a higher maximum input voltage capability of 20V but trades off with a lower maximum junction temperature rating.

  • Identical physical footprint and SOT-223 package
  • Identical pinout mapping verified via datasheet analysis
  • Higher maximum input voltage rating of 20V compared to the original 18V
  • Lower maximum junction temperature rating (125°C vs 150°C)
  • Slightly higher quiescent current (10 mA max)

An excellent industry-standard alternative with identical 1A output current. It offers robust thermal shutdown protection but has a lower maximum input voltage rating of 15V.

  • Direct pin-for-pin footprint match in SOT-223
  • Well-established second source standard LDO
  • Very low dropout voltage of 1.25V at 1A load
  • Lower maximum input voltage (15V vs 18V)
  • Lower maximum junction temperature rating (125°C vs 150°C)
Lifecycle StatusActiveActiveActive
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