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Alternatives to Texas Instruments LM50CIM3/NOPB

Texas Instruments LM50CIM3/NOPB and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

Equivalent and substitute parts for Texas Instruments LM50CIM3/NOPB

LM50CIM3/NOPB compared against its qualified second sources
LM50CIM3/NOPBTexas InstrumentsMCP9700AT-E/TTMicrochip TechnologyMCP9700T-E/TTMicrochip Technology+3more
FFF CompatibilityThe pinout (Pin 1: VDD/VS, Pin 2: VOUT/VO, Pin 3: GND) and package layout are identical to the LM50.Both parts are housed in a standard SOT-23-3 package with identical physical dimensions and footprint.The supply voltage range of the MCP9700A (2.3V to 5.5V) is narrower than the LM50 (4.5V to 10V). It cannot be used if the system supply exceeds 5.5V.Maintains the exact same 3-pin assignment (Pin 1: VDD/VS, Pin 2: VOUT/VO, Pin 3: GND) on SOT-23-3.Both devices use a standard SOT-23-3 footprint, allowing assembly on the same PCB land pattern.The supply voltage is limited to 2.3V - 5.5V (vs 4.5V - 10V for the LM50), and accuracy is slightly lower (±4°C max at 25°C) than the A-grade variant.
AI Summary

LM50CIM3/NOPB by Texas Instruments: Temperature Sensor Analog, Local -40°C ~ 125°C 10mV/°C SOT-23-3.

This is the premier active replacement option, offering the same 10mV/°C scale factor and SOT-23-3 pinout. It provides improved typical accuracy but is restricted to a maximum supply voltage of 5.5V.

  • Pin-compatible drop-in replacement in SOT-23-3 package
  • Active and widely available component from a reputable manufacturer
  • Higher typical accuracy of ±2°C at room temperature (vs ±3°C for LM50C)
  • Narrower supply voltage limit of 5.5V max compared to 10V max on the original LM50
  • Slightly different output offset voltage at 0°C (500mV vs 500mV, check exact datasheet curve if absolute precision is required)

This is the standard accuracy grade version of the MCP9700 series. It offers a fully pin-compatible SOT-23-3 footprint and the same 10mV/°C slope, but with a wider accuracy tolerance and 5.5V supply voltage limit.

  • Direct pinout and package drop-in replacement
  • Active product status ensuring long-term availability
  • Very low power consumption of 6 µA (typical)
  • Slightly lower worst-case accuracy of ±4°C at room temperature compared to ±3°C for the LM50C
  • Maximum operating voltage restricted to 5.5V instead of 10V
Lifecycle StatusObsoleteActiveActive
Market AvailabilityIn stockIn stockIn stock
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Frequently asked questions

Yes. The Texas Instruments LM50CIM3/NOPB is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.

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