TMP421AQDCNTQ1Alternatives & Equivalent Parts
About TMP421AQDCNTQ1
TMP421AQDCNTQ1 is a Integrated Circuit component manufactured by Texas Instruments. It comes in a SOT23 (8-Pin) package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Specification Comparison
| Parameter | TMP421AQDCNTQ1Source | TMP421AIDCNR | TMP421AIDCNRG4 | TMP421AIDCNTG4 | TMP421AQDCNRQ1 |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | SOT23 (8-Pin) | SOT23 (8-Pin) | SOT23 (8-Pin) | SOT23 (8-Pin) | SOT23 (8-Pin) |
| Pin Count | 8 | 8 | 8 | 8 | 8 |
| Temperature Range | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C |
| Price | $0.8348 | — | $0.5086 | $0.3789 | $0.8800 |
| Electrical Parameters | |||||
| YTEOL | 0 | 15 | 0 | 0 | 15 |
| Accuracy-Max (Cel) | 1.5 Cel | 2.5 Cel | 1 Cel | 2.5 Cel | 1.5 Cel |
| Additional Feature | AEC-Q100 | — | — | — | AEC-Q100 |
| Body Breadth | 1.6 mm | 1.6 mm | 1.6 mm | 1.6 mm | 1.6 mm |
| Body Height | 1.175 mm | 1.175 mm | 1.175 mm | 1.175 mm | 1.175 mm |
| Body Length or Diameter | 2.9 mm | 2.9 mm | 2.9 mm | 2.9 mm | 2.9 mm |
| Housing | PLASTIC | PLASTIC | PLASTIC | PLASTIC | PLASTIC |
| JESD-609 Code | e4 | e4 | e4 | e4 | e4 |
| Mounting Feature | SURFACE MOUNT | SURFACE MOUNT | SURFACE MOUNT | SURFACE MOUNT | SURFACE MOUNT |
| Number of Bits | 12 | 12 | 12 | 12 | 12 |
| Operating Current-Max | 0.038 mA | 0.038 mA | 0.12 mA | 0.038 mA | 0.038 mA |
| Output Interface Type | 2-WIRE INTERFACE | 2-WIRE INTERFACE | 2-WIRE INTERFACE | 2-WIRE INTERFACE | 2-WIRE INTERFACE |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Shape/Style | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Screening Level | AEC-Q100 | — | — | — | AEC-Q100 |
| Sensors/Transducers Type | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL |
| Supply Voltage-Max | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage-Min | 2.7 V | 2.7 V | 2.7 V | 2.7 V | 2.7 V |
| Surface Mount | YES | YES | YES | YES | YES |
| Terminal Finish | NICKEL PALLADIUM GOLD | Nickel/Palladium/Gold (Ni/Pd/Au) | NICKEL PALLADIUM GOLD | NICKEL PALLADIUM GOLD | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Termination Type | SOLDER | SOLDER | SOLDER | SOLDER | SOLDER |
| Pbfree Code | — | Yes | — | Yes | Yes |
| Package Equivalence Code | — | TSSOP8,.1 | TSSOP8,.1 | TSSOP8,.1 | — |
| Date Of Intro | — | — | — | — | 2016-12-10 |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Switch/Digital Sensor, 12 Bit(s), 2.5Cel, Rectangular, 8 Pin, Surface Mount
Switch/Digital Sensor, 12 Bit(s), 1Cel, Rectangular, 8 Pin, Surface Mount
Switch/Digital Sensor, 12 Bit(s), 2.5Cel, Rectangular, 8 Pin, Surface Mount
Serial Switch/Digital Sensor, 12 Bit(s), 1.5Cel, Rectangular, 8 Pin, Surface Mount
Why Look for Alternatives?
Finding alternatives for TMP421AQDCNTQ1 is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating TMP421AQDCNTQ1 replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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What is equivalent to TMP421AQDCNTQ1?
Known equivalents for TMP421AQDCNTQ1 include TMP421AIDCNR, TMP421AIDCNRG4, TMP421AIDCNTG4. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of TMP421AQDCNTQ1?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify TMP421AQDCNTQ1 alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.