MAX31888ALT+
Analog Devices Inc./Maxim Integrated
IC .25C 1-WIRE TEMP SENSOR UDFN
Nan stok5347 pcs
MAX31888ALT+.pdf
1.7V ~ 3.6V
Digital, Local
-20°C ~ 105°C (-40°C ~ 125°C)
-40°C ~ 125°C
-
±0.25°C (±0.65°C)
16 b
-
Strip
-
-40°C ~ 125°C
Surface Mount
1-Wire®
Shutdown Mode, Standby Mode
6-WDFN
6-µDFN (2x2)
RFQ
A/TT1K-HT-I-4"-2-BB
Automation Components, Inc.
Transmitter w/ 1,000 Ohm RTD, Hi
Nan stok40571 pcs
8.5V ~ 32V
Analog, Local
260°C
-40°C ~ 85°C
-
±0.2%
-
-
Tape & Box (TB)
-
-40°C ~ 85°C
Chassis Mount
Analog Voltage
-
Module
Module
RFQ
MAX6676AUT3+T
Analog Devices Inc./Maxim Integrated
SENSOR DIGITAL -40C-125C SOT23-6
Nan stok4452 pcs
MAX6676AUT3+T.pdf
1.8V ~ 3.6V
Digital, Local
25°C (-40°C ~ 125°C)
-40°C ~ 125°C
-
±1.5°C (±5.5°C)
-
MAX667
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
PWM
Shutdown Mode
SOT-23-6
SOT-6
RFQ
A/TTM1K-HT-INW-4"-4-BB
Automation Components, Inc.
Transmitter w/ 1,000 Ohm RTD (NI
Nan stok43138 pcs
8.5V ~ 32V
Analog, Local
260°C
-40°C ~ 85°C
-
±0.2%
-
-
Tape & Box (TB)
-
-40°C ~ 85°C
Chassis Mount
Analog Current
-
Module
-
RFQ
MAX6502UKP115-T
onsemi
TEMP SENSOR ANALOG
Nan stok114000 pcs
-
-
-
-
-
-
-
-
Bulk
*
-
-
-
-
-
-
RFQ
TMP35GT9Z
Analog Devices Inc.
SENSOR ANALOG 10C-125C TO92-3
Nan stok13445 pcs
TMP35GT9Z.pdf
2.7V ~ 5.5V
Analog, Local
25°C (10°C ~ 125°C)
10°C ~ 125°C
-
±3°C (±4°C)
10mV/°C
TMP35
Bulk
-
-40°C ~ 150°C
Through Hole
Analog Voltage
Shutdown Mode
TO-226-3, TO-92-3 (TO-226AA)
TO-92-3
RFQ
MCP9701T-E/LTVAO
Microchip Technology
SENSOR ANALOG -10C-125C SC70-5
Nan stok5276 pcs
MCP9701T-E/LTVAO.pdf
3.1V ~ 5.5V
Analog, Local
0°C ~ 70°C (-10°C ~ 125°C)
-10°C ~ 125°C
-
±4°C (-4°C, +6°C)
19.5mV/°C
MCP9701
Tape & Reel (TR)
Automotive, AEC-Q100
-40°C ~ 125°C
Surface Mount
Analog Voltage
-
5-TSSOP, SC-70-5, SOT-353
SC-70-5
RFQ
DS1621
Analog Devices Inc./Maxim Integrated
SENSOR DIGITAL -55C-125C 8DIP
Nan stok4730 pcs
DS1621.pdf
2.7V ~ 5.5V
Digital, Local
0°C ~ 70°C (-55°C ~ 125°C)
-55°C ~ 125°C
-
±0.5°C (±2°C)
9 b
DS1621
Tube
-
-55°C ~ 125°C
Through Hole
I²C
One-Shot, Output Switch, Standby Mode
8-DIP (0.300", 7.62mm)
8-PDIP
RFQ
LM335Z
STMicroelectronics
SENSOR ANALOG -40C-100C TO92-3
Nan stok206370 pcs
LM335Z.pdf
-
Analog, Local
25°C (-40°C ~ 100°C)
-40°C ~ 100°C
-
±1°C
10mV/°K
LM335
Bulk
-
-40°C ~ 100°C
Through Hole
Analog Voltage
-
TO-226-3, TO-92-3 (TO-226AA)
TO-92-3
RFQ
LMT88DCKR
Texas Instruments
SENSOR ANALOG -55C-130C SC70-5
Nan stok167680 pcs
LMT88DCKR.pdf
2.4V ~ 5.5V
Analog, Local
30°C (-50°C ~ 130°C)
-55°C ~ 130°C
-
±1.5°C (±2.5°C)
11.77mV/°C
LMT88
Tape & Reel (TR)
-
-55°C ~ 130°C
Surface Mount
Analog Voltage
-
5-TSSOP, SC-70-5, SOT-353
SC-70-5
RFQ
MIC281-3YM6-TR
Microchip Technology
SENSOR DIGITAL REMOTE SOT23-6
Nan stok36248 pcs
MIC281-3YM6-TR.pdf
3V ~ 3.6V
Digital, Remote
0°C ~ 100°C (-40°C ~ 125°C)
-
-55°C ~ 125°C
±3°C (±5°C)
7 b
MIC281
Tape & Reel (TR)
IttyBitty™
-55°C ~ 125°C
Surface Mount
I²C/SMBus
Shutdown Mode
SOT-23-6
SOT-23-6
RFQ
TMP102AIDRLR
Texas Instruments
SENSOR DIGITAL -40C-125C SOT563
Nan stok64980 pcs
TMP102AIDRLR.pdf
1.4V ~ 3.6V
Digital, Local
-25°C ~ 85°C (-40°C ~ 125°C)
-40°C ~ 125°C
-
±2°C (±3°C)
11 b
TMP102
Tape & Reel (TR)
-
-55°C ~ 150°C
Surface Mount
I²C/SMBus
One-Shot, Output Switch, Shutdown Mode
SOT-563, SOT-666
SOT-563
RFQ
STS32-DIS-10KS
Sensirion AG
3-POINT CALIBRATED ISO17025 CERT
Nan stok10000 pcs
STS32-DIS-10KS.pdf
2.15V ~ 5.5V
Digital, Local
0°C ~ 65°C
-40°C ~ 125°C
-
±0.4°C
0.01°C
-
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
I²C
-
8-VFDFN Exposed Pad
8-DFN (2.5x2.5)
RFQ
LM95071CIMFX
Texas Instruments
SENSOR DIGITAL -40C-150C SOT23-5
Nan stok18297 pcs
LM95071CIMFX.pdf
2.4V ~ 5.5V
Digital, Local
0°C ~ 70°C (-40°C ~ 150°C)
-40°C ~ 150°C
-
±1°C (±2°C)
13 b
LM95071
Tape & Reel (TR)
-
-40°C ~ 150°C
Surface Mount
SPI
Shutdown Mode
SC-74A, SOT-753
SOT-23-5
RFQ
LM95172EWG/NOPB
Texas Instruments
SENSOR DIGITAL -40C-200C 10CFP
Nan stok29166 pcs
LM95172EWG/NOPB.pdf
3V ~ 5.5V
Digital, Local
130°C ~ 160°C (-40°C ~ 120°C)
-40°C ~ 200°C
-
±1°C (±3.5°C)
15 b
LM95172
Tray
Automotive, AEC-Q100
-40°C ~ 200°C
Surface Mount
SPI
One-Shot, Output Switch, Programmable Limit, Shutdown Mode
10-CSOIC (0.241', 6.12mm Width)
10-CFP
RFQ
ADT7420UCPZ-RL7
Analog Devices Inc.
SENSOR DGTL -40C-150C 16LFCSP
Nan stok6602 pcs
ADT7420UCPZ-RL7.pdf
2.7V ~ 5.5V
Digital, Local
-10°C ~ 85°C (-40°C ~ 125°C)
-40°C ~ 150°C
-
±0.2°C (±0.6°C)
15 b
ADT7420
Tape & Reel (TR)
-
-40°C ~ 150°C
Surface Mount
I²C
One-Shot, Output Switch, Programmable Limit, Programmable Resolution, Shutdown Mode
16-WQFN Exposed Pad, CSP
16-LFCSP-WQ (4x4)
RFQ
MAX6646MUA+T
Analog Devices Inc./Maxim Integrated
SENSOR DIGITAL 0C-145C 8UMAX
Nan stok12530 pcs
MAX6646MUA+T.pdf
3V ~ 5.5V
Digital, Local/Remote
60°C ~ 100°C (0°C ~ 125°C)
0°C ~ 145°C
0°C ~ 145°C
±2°C (±3°C)
11 b
MAX6646
Tape & Reel (TR)
-
-55°C ~ 125°C
Surface Mount
SMBus
One-Shot, Output Switch, Programmable Limit, Standby Mode
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
8-uMAX/uSOP
RFQ
A/TT100-HT-I-4"-1-GD
Automation Components, Inc.
Transmitter w/ 100 Ohm RTD, High
Nan stok28868 pcs
8.5V ~ 32V
Analog, Local
260°C
-40°C ~ 395°C
-
±0.2%
-
-
Tape & Box (TB)
-
-40°C ~ 85°C
Chassis Mount
Analog Voltage
-
Module
-
RFQ
MAX6627MKA-T
Analog Devices Inc./Maxim Integrated
SENSOR DIGITAL REMOTE SOT23-8
Nan stok4850 pcs
MAX6627MKA-T.pdf
3V ~ 5.5V
Digital, Remote
0°C ~ 125°C (-55°C ~ 125°C)
-
-55°C ~ 145°C
±1°C (±5.5°C)
12 b
MAX662
Tape & Reel (TR)
-
-55°C ~ 125°C
Surface Mount
SPI
-
SOT-23-8
SOT-23-8
RFQ
TMP006BIYZFT
Texas Instruments
SENSOR DGTL -40C-125C 8DSBGA
Nan stok4730 pcs
TMP006BIYZFT.pdf
2.2V ~ 5.5V
Digital, Infrared (IR)
0°C ~ 60°C (-40°C ~ 125°C)
-40°C ~ 125°C
20°C ~ 60°C (IR)
±1°C (±1.5°C)
15 b
TMP006
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
I²C/SMBus
Shutdown Mode
8-UFBGA, DSBGA
8-DSBGA
RFQ
TMP114AIYMTR
Texas Instruments
0.15-MM HEIGHT, 1.2-V CAPABLE TE
Nan stok42933 pcs
TMP114AIYMTR.pdf
1.08V ~ 1.98V
Digital, Local
-10°C ~ 85°C (-40°C ~ 125°C)
-40°C ~ 125°C
-
±3°C (±5°C)
16 b
-
Tape & Reel (TR)
-
-40°C ~ 125°C (TA)
Surface Mount
2-Wire Serial, I²C/SMBUS
One-Shot, Shutdown Mode, Standby Mode
4-XFBGA, DSBGA
4-PICOSTAR (0.76x0.76)
RFQ
MIC184BMM-TR
Microchip Technology
SENSOR DIGITAL -55C-125C 8MSOP
Nan stok4271 pcs
MIC184BMM-TR.pdf
2.7V ~ 5.5V
Digital, Local/Remote
0°C ~ 100°C (-55°C ~ 125°C)
-55°C ~ 125°C
-55°C ~ 125°C
±2°C (±3°C)
9 b
-
Tape & Reel (TR)
-
-55°C ~ 125°C
Surface Mount
I²C/SMBus
Output Switch, Shutdown Mode, Standby Mode
8-TSSOP, 8-MSOP (0.118', 3.00mm Width)
8-MSOP
RFQ
A/TT1K-O-2-4X
Automation Components, Inc.
Transmitter w/ 1,000 Ohm RTD, Ou
Nan stok39879 pcs
8.5V ~ 32V
Analog, Local
260°C
-40°C ~ 71°C
-
±0.2%
-
-
Tape & Box (TB)
-
-40°C ~ 71°C
Chassis Mount
Analog Voltage
-
Module
Module
RFQ
SVT100-T
Broadsens Corporation
Low power wireless temperature s
Nan stok33444 pcs
SVT100-T.pdf
3.3V
-
-10°C ~ 85°C
-55°C ~ 125°C
-
±0.3°C
0.1°C
-
Box
-
-40°C ~ 88°C
-
-
-
Module
-
RFQ
A/TT1K-BO-4-POTTED
Automation Components, Inc.
Transmitter w/ 1,000 Ohm RTD, Bo
Nan stok33337 pcs
8.5V ~ 32V
Analog, Local
260°C
-40°C ~ 85°C
-
±0.2%
-
-
Tape & Box (TB)
-
-40°C ~ 85°C
Chassis Mount
Analog Current
-
Module
-
RFQ
CAT34TS04EVP2GT4A
onsemi
SENSOR DIGITAL -20C-125C
Nan stok4300 pcs
CAT34TS04EVP2GT4A.pdf
2.2V ~ 5.5V
Digital, Local
75°C ~ 95°C (-20°C ~ 125°C)
-20°C ~ 125°C
-
±1°C (±3°C)
12 b
CAT34
Tape & Reel (TR)
-
-45°C ~ 130°C
Surface Mount
I²C/SMBus
Output Switch, Programmable Limit, Programmable Resolution, Standby Mode
-
-
RFQ
LM70CILD-3
Texas Instruments
SENSOR DIGITAL -55C-150C 8WSON
Nan stok5410 pcs
2.65V ~ 5.5V
Digital, Local
-10°C ~ 65°C (-55°C ~ 150°C)
-55°C ~ 150°C
-
1.5°C (-2°C, 3°C)
10 b
LM70
Tape & Reel (TR)
-
-55°C ~ 150°C
Surface Mount
SPI
Shutdown Mode
8-WFDFN Exposed Pad
8-WSON (3x3)
RFQ
A/TTM1K-D-18"-4-4X
Automation Components, Inc.
Transmitter w/ 1,000 Ohm RTD (NI
Nan stok32002 pcs
8.5V ~ 32V
Analog, Local
260°C
-40°C ~ 200°C
-
±0.2%
-
-
Tape & Box (TB)
-
-40°C ~ 85°C
Chassis Mount
Analog Current
-
Module
-
RFQ
MAX6681MEE+
Analog Devices Inc./Maxim Integrated
SENSOR DIGITAL -55C-125C 16QSOP
Nan stok6324 pcs
MAX6681MEE+.pdf
3V ~ 5.5V
Digital, Local/Remote
60°C ~ 100°C (-55°C ~ 125°C)
-55°C ~ 125°C
-55°C ~ 125°C
1.5°C (±5°C)
10 b
MAX6681
Tube
-
-55°C ~ 125°C
Surface Mount
I²C/SMBus
Output Switch, Programmable Limit, Shutdown Mode, Standby Mode
16-SSOP (0.154", 3.90mm Width)
16-QSOP
RFQ
A/TTM100-D-4"-4-PB
Automation Components, Inc.
Transmitter w/ 100 Ohm RTD (NIST
Nan stok32332 pcs
8.5V ~ 32V
Analog, Local
260°C
-40°C ~ 200°C
-
±0.2%
-
-
Tape & Box (TB)
-
-40°C ~ 85°C
Chassis Mount
Analog Current
-
Module
Module
RFQ
A/TT1K-D-4"-2-PB
Automation Components, Inc.
Transmitter w/ 1,000 Ohm RTD, Du
Nan stok34849 pcs
8.5V ~ 32V
Analog, Local
260°C
-40°C ~ 200°C
-
±0.2%
-
-
Tape & Box (TB)
-
-40°C ~ 85°C
Chassis Mount
Analog Voltage
-
Module
Module
RFQ
MAX6697EP99+T
Analog Devices Inc./Maxim Integrated
SENSOR DIGITAL -40C-125C 20QSOP
Nan stok8112 pcs
MAX6697EP99+T.pdf
3V ~ 5.5V
Digital, Local/Remote
60°C ~ 100°C (0°C ~ 125°C)
-40°C ~ 125°C
-40°C ~ 125°C
±2°C (±3°C)
11 b (Local), 8 b (Remote)
MAX6697
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
SMBus
One-Shot, Output Switch, Programmable Limit, Standby Mode
20-SSOP (0.154", 3.90mm Width)
20-QSOP
RFQ
MAX6649YMUA+
Analog Devices Inc./Maxim Integrated
SENSOR DIGITAL 0C-145C 8UMAX
Nan stok45210 pcs
MAX6649YMUA+.pdf
3V ~ 5.5V
Digital, Local/Remote
60°C ~ 100°C (0°C ~ 125°C)
0°C ~ 145°C
0°C ~ 145°C
±2°C (±3°C)
11 b
MAX664
Tube
-
-55°C ~ 125°C
Surface Mount
SMBus
One-Shot, Output Switch, Programmable Limit, Standby Mode
8-TSSOP, 8-MSOP (0.118', 3.00mm Width)
8-uMAX/uSOP
RFQ
N34TS108C6EXT5G
onsemi
IC DIGITAL TEMP SENSOR
Nan stok4851 pcs
N34TS108C6EXT5G.pdf
1.4V ~ 3.6V
Digital, Local
-20°C ~ 85°C (-40°C ~ 125°C)
-40°C ~ 125°C
-
±0.75°C (±1°C)
12 b
N34TS108
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
SMBus
One-Shot, Programmable Limit, Shutdown Mode, Standby Mode
6-UFBGA, WLCSP
6-WLCSP (1.19x.79)
RFQ
LMT86LP
Texas Instruments
SENSOR ANALOG -50C-150C TO92-3
Nan stok63900 pcs
LMT86LP.pdf
2.2V ~ 5.5V
Analog, Local
40°C ~ 150°C
-50°C ~ 150°C
-
±2.7°C
10.9mV/°C
LMT86
Bulk
Automotive, AEC-Q100
-50°C ~ 150°C
Through Hole
Analog Voltage
-
TO-226-3, TO-92-3 (TO-226AA)
TO-92-3
RFQ
TC74A7-3.3VAT
Microchip Technology
SENSOR DIGITAL -40C-125C TO220-5
Nan stok45502 pcs
TC74A7-3.3VAT.pdf
2.7V ~ 5.5V
Digital, Local
25°C ~ 85°C (0°C ~ 125°C)
-40°C ~ 125°C
-
±2°C (±3°C)
7 b
TC74
Tube
-
-40°C ~ 125°C
Through Hole
I²C/SMBus
Standby Mode
TO-220-5
TO-220-5
RFQ
TMP1075DSGT
Texas Instruments
HIGH-ACCURACY UPGRADE TO INDUSTR
Nan stok50350 pcs
TMP1075DSGT.pdf
1.7V ~ 5.5V
Digital, Local
-40°C ~ 75°C (-55°C ~ 125°C)
-55°C ~ 125°C
-
±1°C (±2°C)
12 b
TMP1075
Tape & Reel (TR)
-
-55°C ~ 125°C (TA)
Surface Mount
I²C/SMBus
One-Shot, Shutdown Mode
8-WFDFN Exposed Pad
8-WSON (2x2)
RFQ
A/TT1K-HT-INW-4"-4-GD
Automation Components, Inc.
Transmitter w/ 1,000 Ohm RTD, Hi
Nan stok35946 pcs
8.5V ~ 32V
Analog, Local
260°C
-40°C ~ 85°C
-
±0.2%
-
-
Tape & Box (TB)
-
-40°C ~ 85°C
Chassis Mount
Analog Current
-
Module
-
RFQ
MAX6654MEE+TG11
Analog Devices Inc./Maxim Integrated
INTEGRATED CIRCUIT
Nan stok5293 pcs
MAX6654MEE+TG11.pdf
-
-
-
-
-
-
-
MAX6654
Tape & Reel (TR)
-
-
Surface Mount
-
-
16-SSOP (0.154", 3.90mm Width)
16-QSOP
RFQ
CT-1000N-485
Diwell Electronics
IR TEMPERATURE -20 ~ 1000C RS485
Nan stok43954 pcs
CT-1000N-485.pdf
4.75V ~ 12V
Digital, Infrared (IR)
-
-20°C ~ 70°C
-20°C ~ 1000°C (IR)
±2%
0.1°C
-
Bulk
*
-20°C ~ 70°C
Panel Mount
Modbus-RTU, RS-485
-
Cylinder, Threaded - M12
-
RFQ
LM56CIMMX
Texas Instruments
SENSOR ANALOG -40C-125C 8SOIC
Nan stok4980 pcs
LM56CIMMX.pdf
2.7V ~ 10V
Analog, Local
25°C ~ 85°C (-40°C ~ 125°C)
-40°C ~ 125°C
-
±3°C (±4°C)
6.2mV/°C
LM56
Tape & Reel (TR)
-
-40°C ~ 125°C
Surface Mount
Analog Voltage
Output Switch
8-SOIC (0.154', 3.90mm Width)
8-SOIC
RFQ
LM75BIM-3+T
Analog Devices Inc./Maxim Integrated
SENSOR DIGITAL -55C-125C 8SOIC
Nan stok5451 pcs
LM75BIM-3+T.pdf
3V ~ 5.5V
Digital, Local
-25°C ~ 100°C (-55°C ~ 125°C)
-55°C ~ 125°C
-
±2°C (±3°C)
9 b
LM75BIM
Tape & Reel (TR)
-
-55°C ~ 125°C
Surface Mount
I²C
Output Switch, Programmable Limit, Shutdown Mode
8-SOIC (0.154', 3.90mm Width)
8-SOIC
RFQ
S-5855ACAA-I4T1U
ABLIC Inc.
SENSOR DIGITAL -40C-115C SNT-4A
Nan stok5472 pcs
S-5855ACAA-I4T1U.pdf
1.65V ~ 5.5V
Digital, Local
25°C
-40°C ~ 115°C
-
±3°C
-
S-5855
Tape & Reel (TR)
S-5855A
-40°C ~ 125°C
Surface Mount
PWM
-
4-SMD, Flat Leads
SNT-4A
RFQ
SPS1T002FOM
onsemi
RF TAG SPS TEMPERATURE SENSOR
Nan stok4433 pcs
SPS1T002FOM.pdf
-
-
-
-
-
-
-
SPS1T002
Tape & Reel (TR)
-
-
Surface Mount
-
-
Module
-
RFQ
A/TTM1K-HT-IM-4"-4-BB
Automation Components, Inc.
Transmitter w/ 1,000 Ohm RTD (NI
Nan stok28125 pcs
A/TTM1K-HT-IM-4"-4-BB.pdf
8.5V ~ 32V
Analog, Local
260°C
-40°C ~ 395°C
-
±0.2%
-
-
Tape & Box (TB)
-
-40°C ~ 85°C
Chassis Mount
Analog Current
-
Module
Module
RFQ
TS3000GB0B1NCG
Renesas Electronics America Inc
IC
Nan stok5091 pcs
TS3000GB0B1NCG.pdf
-
-
-
-
-
-
-
-
Bulk
-
-
-
-
-
-
-
RFQ
A/TT100-I-6"-4-EXPL
Automation Components, Inc.
Transmitter w/ 100 Ohm RTD, Haza
Nan stok34781 pcs
A/TT100-I-6"-4-EXPL.pdf
8.5V ~ 32V
Analog, Local
260°C
-40°C ~ 200°C
-
±0.2%
-
-
Tape & Box (TB)
-
-40°C ~ 85°C
Chassis Mount
Analog Current
-
Module
-
RFQ
A/TT1K-INW-4"-2-4X-POTTED
Automation Components, Inc.
Transmitter w/ 1,000 Ohm RTD, Im
Nan stok39883 pcs
8.5V ~ 32V
Analog, Local
260°C
-40°C ~ 85°C
-
±0.2%
-
-
Tape & Box (TB)
-
-40°C ~ 85°C
Chassis Mount
Analog Voltage
-
Module
Module
RFQ
A/TT100-IM-2.5"-4-4X
Automation Components, Inc.
Transmitter w/ 100 Ohm RTD, Imme
Nan stok31008 pcs
8.5V ~ 32V
Analog, Local
260°C
-40°C ~ 85°C
-
±0.2% (±0.5%)
-
-
Tape & Box (TB)
-
-40°C ~ 85°C
Panel Mount
Analog Current
-
Cylinder, Threaded
Module
RFQ
A/TT1K-INW-2.5"-2-PB
Automation Components, Inc.
Transmitter w/ 1,000 Ohm RTD, Im
Nan stok29350 pcs
8.5V ~ 32V
Analog, Local
260°C
-40°C ~ 85°C
-
±0.2%
-
-
Tape & Box (TB)
-
-40°C ~ 85°C
Chassis Mount
Analog Voltage
-
Module
-
RFQ