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Alternatives to Texas Instruments ISO1050DUBR

Texas Instruments ISO1050DUBR and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

ISO1050DUBR compared against its qualified second sources
ISO1050DUBRTexas InstrumentsNSI1050-DDBRNOVOSENSETPT71050-SM1R3PEAK+2more
FFF CompatibilityThe pinout is 100% identical (Pin 2 is RXD, Pin 3 is TXD, Pin 1 is VCC1, Pin 8 is VCC2, etc.) and it mounts directly onto the existing DUB-8 layout.It uses the identical wide SOP-8 (DUB-8) package style with standard 2.54mm lead pitch and physical outline.Fully compatible with the ISO11898-2 standard supporting up to 1Mbps data rates with enhanced ±40V bus fault protection.The physical package footprint has a different pitch and body width, requiring a layout redesign.It is an 8-pin wide isolated package style but possesses minor dimensional and pitch differences from the DUB package.It meets or exceeds all electrical parameters of the ISO1050, adding support for the faster CAN FD standard.
AI Summary

ISO1050DUBR by Texas Instruments: 1/1 Transceiver, Isolated Half CANbus 8-SOP.

The NSI1050-DDBR is a highly reliable, direct pin-to-pin second-source replacement for the ISO1050DUBR. It offers identical physical package dimensions and pin mapping while improving common-mode transient immunity (CMTI) to 100 kV/μs. This is the easiest drop-in alternative requiring zero schematic or PCB layout modifications.

  • Direct pin-to-pin drop-in replacement requiring no board layout changes
  • Identical 2.54mm pitch SOP-8/DUB-8 package footprint
  • Excellent isolation performance (5000 Vrms) and high CMTI (100 kV/μs)

The TPT71050-SM1R is an upgraded isolated CAN transceiver from 3PEAK that maintains the same pinout mapping logic (RXD on Pin 2, TXD on Pin 3) as the ISO1050. It upgrades the bus data rate to 5 Mbps for CAN FD systems and increases common-mode transient immunity. Redesigning the PCB footprint is necessary because the SMP8 package footprint pitch differs from the DUB package.

  • Identical pin mapping logic (Pin 2 is RXD, Pin 3 is TXD) prevents logic crossing errors
  • Supports high-speed CAN FD up to 5 Mbps (exceeds original 1 Mbps limit)
  • Higher transient immunity with CMTI up to 200 kV/μs
  • Requires a PCB footprint layout change due to package dimension differences.
Lifecycle StatusActiveUnknownUnknown
Market AvailabilityIn stockUnknownUnknown
REACHREACHUnknownUnknown
RoHSRoHSUnknownUnknown
Description1/1 Transceiver, Isolated Half CANbus 8-SOPThe NSI1050-DDBR is a highly reliable, direct pin-to-pin second-source replacement for the ISO1050DUBR. It offers identical physical packageThe TPT71050-SM1R is an upgraded isolated CAN transceiver from 3PEAK that maintains the same pinout mapping logic (RXD on Pin 2, TXD on Pin
ManufacturerTexas InstrumentsNOVOSENSE3PEAK
TypeInterfaceComponentComponent
DatasheetOpenN/AN/A
Lead Time16 weeksUnknownUnknown
Country of OriginMY, US, TH--
Export Control Class Number5A991B1EAR99EAR99
HTSUS Code8542.39.0070--
Moisture Sensitivity Level3 (168 Hours)--
TypeTransceiver, Isolated--
DuplexHalf--
ProtocolCANbus--
Data Rate1Mbps--
Mounting TypeSurface Mount--
Package / Case8-SMD, Gull Wing--
Voltage - Supply3V ~ 5.5V, 4.75V ~ 5.25V--
Receiver Hysteresis150 mV--

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Related parts

PartMarket availabilityLifecycleAlternatives available
ISO1050DUBTexas InstrumentsIn stockObsolete5Alternatives availableSee Alternatives
ISO1540DTexas InstrumentsDiscontinuedObsolete5Alternatives availableSee Alternatives
ISO7220ADRTexas InstrumentsIn stockActive5Alternatives availableSee Alternatives
ISO124UTexas InstrumentsNon-stockActive3Alternatives availableSee Alternatives
ISO5852SDWRTexas InstrumentsIn stockActive6Alternatives availableSee Alternatives

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Frequently asked questions

Yes. The Texas Instruments ISO1050DUBR 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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