All Alternatives

Alternatives to Texas Instruments UCC33421DHAR

Texas Instruments UCC33421DHAR and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

UCC33421DHAR compared against its qualified second sources
UCC33421DHARTexas InstrumentsUCC33421QDHARQ1Texas InstrumentsUCC33021QDHARQ1Texas Instruments+3more
FFF CompatibilityThe part utilizes the exact same 16-pin DHA package with identical pinout assignments.The physical size of 5.85mm x 7.50mm x 2.65mm matches the target part precisely.It meets or exceeds all electrical performance specifications, including 1.5W output power and 4.5V to 5.5V input range.The pin assignments and package footprint are identical to the target part.The physical package dimensions are completely identical to the target part.The maximum output power is reduced to 1.0W (200mA maximum) compared to the queried part's 1.5W (300mA maximum).
AI Summary

UCC33421DHAR by Texas Instruments: Isolated Module DC DC Converter 1 Output 5V 300mA 4.5V - 5.5V Input.

This is the automotive-qualified version of the queried part, offering identical electrical parameters and an exact package/pinout match, making it a high-confidence direct replacement.

  • AEC-Q100 Automotive qualified version of the UCC33421 series
  • True drop-in replacement with identical package, layout, and thermal properties
  • Maintains the high 5kVRMS isolation and 1.5W output capability

This sibling device provides a wider input voltage range but comes with a lower maximum output power rating, making it suitable if your load requirements do not exceed 1.0W.

  • Drop-in pinout compatibility in the same DHA-16 package
  • Wider input voltage range of 3.0V to 5.5V compared to the target part's 4.5V to 5.5V
  • Automotive AEC-Q100 qualification for robust reliability
  • Lower maximum output power: 1.0W vs 1.5W (200mA vs 300mA max load)
Lifecycle StatusActiveActiveUnknown
Market AvailabilityNon-stockNon-stockUnknown
REACHUnknownUnknownUnknown
RoHSRoHSRoHSUnknown
DescriptionIsolated Module DC DC Converter 1 Output 5V 300mA 4.5V - 5.5V InputIsolated Module DC DC Converter 1 Output 5V 300mA 4.5V - 5.5V InputThis sibling device provides a wider input voltage range but comes with a lower maximum output power rating, making it suitable if your load
ManufacturerTexas InstrumentsTexas InstrumentsTexas Instruments
TypeDC DC ConvertersDC DC ConvertersComponent
DatasheetN/AN/AN/A
Lead Time26 weeks26 weeksUnknown
Country of Origin---
Export Control Class NumberEAR99EAR99EAR99
HTSUS Code---
Moisture Sensitivity Level---
TypeIsolated Module--
FeaturesRemote On/Off--
Efficiency59%--
ApplicationsITE (Commercial)--
Mounting TypeSurface Mount--
Power (Watts)1.5W--
Package / Case16-BSSOP (0.295", 7.50mm Width)--
Standard Number62368-1--

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Frequently asked questions

Yes. The Texas Instruments UCC33421DHAR is active and in production. The parts listed here are qualified equivalents if you need a second source or better availability.

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