Board Mount Temperature Sensors

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TMP421/TMP422/TMP423 Temperature Sensors

Texas Instruments TMP421/TMP422/TMP423 small high-performance remote temperature monitor with built-in local temperature sensors. The devices add programmable bus addressing to support multiple devices on the same I²C/SMBus. The Texas Instruments TMP421/TMP422/TMP423 series features resistance cancellation, programmable non-ideality factor for improved system accuracy, and diode fault detection to ensure the remote sensor is in working condition and connected correctly. The devices have an onboard local temperature sensor and support three remote temperature sensors. The TMP422-EP devices have gold bond wires, a temperature range of –55 to +105°C, and include a SnPb lead finish.

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Part #

Board Mount Temperature Sensors AEC-Q100 Automotive 1Ch Remote Temperatu A 595-TMP421AQDCNTQ1

TMP421AQDCNRQ1
Texas Instruments
1: $2.38
15,197In Stock

Mfr. Part No.
TMP421AQDCNRQ1

Mouser Part No
595-TMP421AQDCNRQ1

Texas Instruments

Board Mount Temperature Sensors AEC-Q100 Automotive 1Ch Remote Temperatu A 595-TMP421AQDCNTQ1

Learn More

Datasheet

15,197In Stock

Cut Tape

$2.38

$2.11

$1.89

$1.81

View

Reel

$1.22

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Digital

+/- 1 C

- 40 C

+ 125 C

SOT-23-8

2-Wire, I2C, SMBus

2.7 V

5.5 V

Local, Remote

12 bit

Shutdown

SMD/SMT

AEC-Q100

Reel, Cut Tape, MouseReel

Board Mount Temperature Sensors AEC-Q100 Automotive 2Ch Remote Temperatu A 595-TMP422AQDCNTQ1

TMP422AQDCNRQ1
Texas Instruments
1: $3.00
2,236In Stock

Mfr. Part No.
TMP422AQDCNRQ1

Mouser Part No
595-TMP422AQDCNRQ1

Texas Instruments

Board Mount Temperature Sensors AEC-Q100 Automotive 2Ch Remote Temperatu A 595-TMP422AQDCNTQ1

Learn More

Datasheet

2,236In Stock

Cut Tape

$3.00

$2.67

$2.39

$2.22

View

Reel

$1.57

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Digital

+/- 1 C

- 40 C

+ 125 C

SOT-23-8

2-Wire, I2C, SMBus

2.7 V

5.5 V

Local, Remote

12 bit

Shutdown

SMD/SMT

AEC-Q100

Reel, Cut Tape, MouseReel

Board Mount Temperature Sensors Remote and Local Tem p Sensor

TMP422AMDCNTEP
Texas Instruments
1: $11.33
3,296In Stock

Mfr. Part No.
TMP422AMDCNTEP

Mouser Part No
595-TMP422AMDCNTEP

Texas Instruments

Board Mount Temperature Sensors Remote and Local Tem p Sensor

Learn More

Datasheet

Product Comments

3,296In Stock

Cut Tape

$11.33

$10.23

$9.83

$9.34

Reel

$8.34

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Digital

+/- 1 C

- 55 C

+ 125 C

SOT-23-8

2-Wire, I2C, SMBus

2.7 V

5.5 V

Local, Remote

12 bit

Shutdown

SMD/SMT

Reel, Cut Tape, MouseReel

Board Mount Temperature Sensors +/-1degC Rem and Tem p Sensor A 595-TMP4 A 595-TMP421AIDCNT

TMP421AIDCNR
Texas Instruments
1: $1.77
20,510In Stock

Mfr. Part No.
TMP421AIDCNR

Mouser Part No
595-TMP421AIDCNR

Texas Instruments

Board Mount Temperature Sensors +/-1degC Rem and Tem p Sensor A 595-TMP4 A 595-TMP421AIDCNT

Learn More

Datasheet

20,510In Stock

Cut Tape

$1.77

$1.56

$1.38

$1.32

View

Reel

$1.01

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Digital

+/- 1 C

- 40 C

+ 125 C

SOT-23-8

2-Wire, I2C, SMBus

2.7 V

5.5 V

Local, Remote

12 bit

Shutdown

SMD/SMT

Reel, Cut Tape, MouseReel

Board Mount Temperature Sensors +/-1degC Remote & Lo cal Temp Sensor A 5 A 595-TMP421YZDT

TMP421YZDR
Texas Instruments
1: $1.70
4,268In Stock

Mfr. Part No.
TMP421YZDR

Mouser Part No
595-TMP421YZDR

Texas Instruments

Board Mount Temperature Sensors +/-1degC Remote & Lo cal Temp Sensor A 5 A 595-TMP421YZDT

Learn More

Datasheet

4,268In Stock

Cut Tape

$1.70

$1.50

$1.34

$1.28

View

Reel

$1.03

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Digital

+/- 1 C

- 40 C

+ 125 C

2-Wire, I2C, SMBus

2.7 V

5.5 V

Local, Remote

12 bit

Shutdown

SMD/SMT

Reel, Cut Tape, MouseReel

Board Mount Temperature Sensors +/-1C Remote and Loc al Temp Sensor A 59 A 595-TMP423AIDCNT

TMP423AIDCNR
Texas Instruments
1: $2.46
1,937In Stock

Mfr. Part No.
TMP423AIDCNR

Mouser Part No
595-TMP423AIDCNR

Texas Instruments

Board Mount Temperature Sensors +/-1C Remote and Loc al Temp Sensor A 59 A 595-TMP423AIDCNT

Learn More

Datasheet

1,937In Stock

Cut Tape

$2.46

$2.18

$1.96

$1.88

View

Reel

$1.40

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Digital

+/- 1 C

- 40 C

+ 125 C

SOT-23-8

2-Wire, I2C, SMBus

2.7 V

5.5 V

Local, Remote

12 bit

Shutdown

SMD/SMT

Reel, Cut Tape, MouseReel

Board Mount Temperature Sensors +/-1 degreeC Remote Local Temp Sensor A A 595-TMP422AIDCNT

TMP422AIDCNR
Texas Instruments
1: $3.27
152In Stock
9,000Expected 4/9/2026

Mfr. Part No.
TMP422AIDCNR

Mouser Part No
595-TMP422AIDCNR

Texas Instruments

Board Mount Temperature Sensors +/-1 degreeC Remote Local Temp Sensor A A 595-TMP422AIDCNT

Learn More

Datasheet

152In Stock

9,000Expected 4/9/2026

Cut Tape

$3.27

$2.75

$2.56

$2.15

View

Reel

$1.47

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Digital

+/- 1 C

- 40 C

+ 125 C

SOT-23-8

2-Wire, I2C, SMBus

2.7 V

5.5 V

Local, Remote

12 bit

Shutdown

SMD/SMT

Reel, Cut Tape, MouseReel

Board Mount Temperature Sensors AEC-Q100 Automotive 3Ch Remote Temperatu A 595-TMP423AQDCNTQ1

TMP423AQDCNRQ1
Texas Instruments
1: $3.59
1,127In Stock

Mfr. Part No.
TMP423AQDCNRQ1

Mouser Part No
595-TMP423AQDCNRQ1

Texas Instruments

Board Mount Temperature Sensors AEC-Q100 Automotive 3Ch Remote Temperatu A 595-TMP423AQDCNTQ1

Learn More

Datasheet

1,127In Stock

Cut Tape

$3.59

$3.13

$3.06

$2.89

View

Reel

$1.72

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Digital

+/- 1 C

- 40 C

+ 125 C

SOT-23-8

2-Wire, I2C, SMBus

2.7 V

5.5 V

Local, Remote

12 bit

Shutdown

SMD/SMT

AEC-Q100

Reel, Cut Tape, MouseReel

Board Mount Temperature Sensors +/-1C Remote and Loc al Temp Sensor A 59 A 595-TMP423BIDCNT

TMP423BIDCNR
Texas Instruments
1: $2.46
516In Stock

Mfr. Part No.
TMP423BIDCNR

Mouser Part No
595-TMP423BIDCNR

Texas Instruments

Board Mount Temperature Sensors +/-1C Remote and Loc al Temp Sensor A 59 A 595-TMP423BIDCNT

Learn More

Datasheet

516In Stock

Cut Tape

$2.46

$2.18

$1.96

$1.88

View

Reel

$1.43

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Digital

+/- 1 C

- 40 C

+ 125 C

SOT-23-8

2-Wire, I2C, SMBus

2.7 V

5.5 V

Local, Remote

12 bit

Shutdown

SMD/SMT

Reel, Cut Tape, MouseReel

Board Mount Temperature Sensors Remote and Local Tem p Sensor A 595-TMP4 A 595-TMP422AMDCNTEP

V62/11618-01XE
Texas Instruments
250: $10.02
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
V62/11618-01XE

Mouser Part No
595-V62/11618-01XE

Texas Instruments

Board Mount Temperature Sensors Remote and Local Tem p Sensor A 595-TMP4 A 595-TMP422AMDCNTEP

Datasheet

Product Comments

Non-Stocked Lead-Time 18 Weeks

Reel

$10.02

$8.87

$8.58

Min.: 250
Mult.: 250

: 250

Digital

+/- 1 C

- 55 C

+ 125 C

SOT-23-8

2-Wire, I2C, SMBus

2.7 V

5.5 V

Local, Remote

Shutdown

SMD/SMT

Reel

TMP421/TMP422/TMP423 Temperature Sensors

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