NJM2070M-TE1
Nisshinbo Micro Devices Inc.
IC AUDIO PWR AMP BIPO LV 8DMP
In stock3950 pcs
8-DMP
Tape & Reel (TR)
-
600mW x 1 @ 4Ohm
1.8V ~ 15V
8-SOIC (0.197", 5.00mm Width)
-
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX4411EBE+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS AB STER 80MW 16UCSP
In stock14000 pcs
16-UCSP (2x2)
Tape & Reel (TR)
MAX4411
80mW x 2 @ 16Ohm
1.8V ~ 3.6V
16-WFBGA, CSPBGA
Depop, Short-Circuit and Thermal Protection, Shutdown
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectDrive®
RFQ
TPA2037D1YFFR
Texas Instruments
IC AMP CLASS D MONO 3.24W 9DSBGA
In stock113430 pcs
9-DSBGA
Tape & Reel (TR)
TPA2037
3.24W x 1 @ 4Ohm
2.5V ~ 5.5V
9-UFBGA, DSBGA
Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TAS5112ADFD
Texas Instruments
IC AMP CLASS D STER 62W 56HTSSOP
In stock3080 pcs
56-HTSSOP
Tube
TAS5112
62W x 2 @ 6Ohm
16V ~ 25.5V
56-PowerTSSOP (0.240", 6.10mm Width)
Depop, Digital Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 70°C (TA)
PurePath Digital™
RFQ
TDA7491HV
STMicroelectronics
IC AMP D STEREO 20W POWERSSO36
In stock17480 pcs
PowerSSO-36 EPD
Tube
TDA7491
20W x 2 @ 8Ohm
5V ~ 18V
36-PowerBFSOP (0.295", 7.50mm Width)
Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
IS31AP2031-QFLS2-TR
Lumissil Microsystems
IC AMP CLASS G MONO 2W 20QFN
In stock55590 pcs
20-QFN (3x3)
Tape & Reel (TR)
IS31AP2031
2W x 1 @ 8Ohm
2.7V ~ 4.5V
20-WFQFN Exposed Pad
AGC, Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class G
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TAS5721DCA
Texas Instruments
IC AMP CLASS D STER 10W 48HTSSOP
In stock6495 pcs
48-HTSSOP
Tube
TAS5721
10W x 2 @ 8Ohm
8V ~ 26.4V
48-TFSOP (0.240", 6.10mm Width) Exposed Pad
Depop, Digital Inputs, I²C, I²S, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control
2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 85°C (TA)
-
RFQ
STPA002OD-4WX
STMicroelectronics
IC AMP AB QUAD 85W 25FLEXIWATT
In stock4240 pcs
25-Flexiwatt (Vertical)
Tube
STPA002
85W x 4 @ 2Ohm
6V ~ 18V
25-Flexiwatt (Formed Leads)
Mute, Standby
4-Channel (Quad)
Class AB
Through Hole
-
-
RFQ
BH7824FVM-FTR
Rohm Semiconductor
IC AMP CLASS AB MONO 500MW 8MSOP
In stock14020 pcs
8-MSOP
Tape & Reel (TR)
BH7824
500mW x 1 @ 8Ohm
1.8V ~ 5.5V
8-VSSOP, 8-MSOP (0.110", 2.80mm Width)
Depop, Shutdown, Thermal Protection
1-Channel (Mono)
Class AB
Surface Mount
-30°C ~ 85°C (TA)
-
RFQ
LM4835MTE
Texas Instruments
IC AMP AB STEREO 2.2W 28HTSSOP
In stock9840 pcs
28-HTSSOP
Tube
LM4835
2.2W x 2 @ 3Ohm; 95mW x 2 @ 32Ohm
2.7V ~ 5.5V
28-PowerTSSOP (0.173", 4.40mm Width)
Depop, Mute, Shutdown, Thermal Protection, Volume Control
2-Channel (Stereo) with Stereo Headphones
Class AB
Surface Mount
-40°C ~ 85°C (TA)
Boomer®
RFQ
SSM3582BCPZR7
Analog Devices Inc.
IC AMP CLSS D STER 14.4W 40LFCSP
In stock3602 pcs
40-LFCSP-WQ (6x6)
Tape & Reel (TR)
SSM3582
14.4W x 2 @ 8Ohm
1.8V, 5V
40-WFQFN Exposed Pad, CSP
Depop, Short-Circuit and Thermal Protection
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA2015D1YZHR
Texas Instruments
IC AMP CLASS D MONO 2W 16DSBGA
In stock78440 pcs
16-DSBGA (2.24x2.16)
Tape & Reel (TR)
TPA2015
2W x 1 @ 8Ohm
2.5V ~ 5.2V
16-UFBGA, DSBGA
Differential Inputs, Short-Circuit and Thermal Protection
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
SpeakerGuard™
RFQ
TPA3111D1QPWPRQ1
Texas Instruments
IC AMP CLASS D MONO 10W 28HTSSOP
In stock41881 pcs
28-HTSSOP
Tape & Reel (TR)
TPA3111
10W x 1 @ 8Ohm
8V ~ 26V
28-PowerTSSOP (0.173", 4.40mm Width)
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 125°C (TA)
Automotive, AEC-Q100, SpeakerGuard™
RFQ
TDA7490
STMicroelectronics
IC AMP D MON/STER 50W 25FLEXIWTT
In stock14990 pcs
25-Flexiwatt (Vertical)
Tube
TDA7490
50W x 1 @ 16Ohm; 25W x 2 @ 8Ohm
±10V ~ 25V
25-Flexiwatt (Formed Leads)
Depop, Mute, Short-Circuit and Thermal Protection, Standby
1-Channel (Mono) or 2-Channel (Stereo)
Class D
Through Hole
0°C ~ 70°C (TA)
-
RFQ
SSM2167-1RMZ-R7
Analog Devices Inc.
IC AMP CLASS AB MONO 10MSOP
In stock18614 pcs
10-MSOP
Tape & Reel (TR)
SSM2167
-
2.5V ~ 5.5V
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Microphone, Shutdown
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TDA7387EP
STMicroelectronics
IC AMP AB QUAD 41W 25FLEXIWATT
In stock17987 pcs
25-Flexiwatt (Vertical)
Tube
TDA7387
41W x 4 @ 4Ohm
-
25-Flexiwatt (Formed Leads)
-
4-Channel (Quad)
Class AB
-
-30°C ~ 85°C
-
RFQ
MAX9791AETI+
Analog Devices Inc./Maxim Integrated
IC AMP CLASS D STER 2.2W 28TQFN
In stock19122 pcs
28-TQFN (5x5)
Tube
MAX9791
2.2W x 2 @ 4Ohm; 180mW x 2 @ 32Ohm
4.5V ~ 5.5V
28-WFQFN Exposed Pad
Depop, LDO, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo) with Stereo Headphones and Subwoofer
Class D
Surface Mount
-40°C ~ 85°C (TA)
DirectDrive®
RFQ
TDA7451
STMicroelectronics
IC AMP AB DUAL/QUAD 25FLEXIWATT
In stock14380 pcs
25-Flexiwatt (Vertical)
Tube
TDA7451
32W x 2 @ 4Ohm; 9.5W x 4 @ 4Ohm
-
25-Flexiwatt (Formed Leads)
Depop, Mute, Short-Circuit and Thermal Protection, Standby
2-Channel (Stereo) or 4-Channel (Quad)
Class AB
Through Hole
-40°C ~ 150°C (TJ)
-
RFQ
TAS5152DKDR
Texas Instruments
IC AMP CLASS D STER 125W 36HSSOP
In stock9630 pcs
36-HSSOP
Tape & Reel (TR)
TAS5152
125W x 2 @ 4Ohm
10.8V ~ 13.2V
36-BSSOP (0.433", 11.00mm Width) Exposed Pad
Digital Inputs, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 70°C (TA)
PurePath Digital™
RFQ
TLV320DAC3203IRGET
Texas Instruments
IC AMP CLASS AB STEREO 24VQFN
In stock19221 pcs
24-VQFN (4x4)
Tape & Reel (TR)
TLV320
-
1.5V ~ 1.95V
24-VFQFN Exposed Pad
Depop, I²C, I²S, Microphone, Mute, SPI, Volume Control
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
PowerTune™
RFQ
TDA1519/N2,112
NXP USA Inc.
IC AMP CLASS B STEREO 6W 9SIL
In stock4760 pcs
9-SIL MPF
Tube
TDA151
6W x 2 @ 4Ohm
6V ~ 18V
9-SIP Exposed Tab
Depop, Mute, Short-Circuit and Thermal Protection, Standby
2-Channel (Stereo)
Class B
Through Hole
-
-
RFQ
TPA2034D1YZFT
Texas Instruments
IC AMP CLASS D MONO 2.75W 9DSBGA
In stock41667 pcs
9-DSBGA
Tape & Reel (TR)
TPA2034
2.75W x 1 @ 4Ohm
2.5V ~ 5.5V
9-UFBGA, DSBGA
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
NanoFree™
RFQ
TPA0242PWPR
Texas Instruments
IC AMP AB STEREO 2.8W 24HTSSOP
In stock13410 pcs
24-HTSSOP
Tape & Reel (TR)
TPA024
2.8W x 2 @ 3Ohm
4.5V ~ 5.5V
24-PowerTSSOP (0.173", 4.40mm Width)
Depop, Differential Inputs, Input Multiplexer, Mute, Shutdown, Thermal Protection, Volume Control
2-Channel (Stereo) with Stereo Headphones
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA122DGN
Texas Instruments
IC AMP CLASS AB STER 70MW 8MSOP
In stock55640 pcs
8-HVSSOP
Tube
TPA122
70mW x 2 @ 8Ohm
2.5V ~ 5.5V
8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Depop, Short-Circuit and Thermal Protection, Shutdown
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
SSM2211S
Analog Devices Inc.
IC AMP AUDIO PWR 1W MONO 8SOIC
In stock57000 pcs
8-SOIC
Tube
SSM2211
1.5W x 1 @ 4Ohm
2.7V ~ 5.5V
8-SOIC (0.154", 3.90mm Width)
Differential Inputs, Shutdown
1-Channel (Mono)
Class AB
Surface Mount
-
-
RFQ
TPA4860D
Texas Instruments
IC AMP CLASS AB MONO 1.1W 16SOIC
In stock37525 pcs
16-SOIC
Tube
TPA4860
1.1W x 1 @ 8Ohm
2.7V ~ 5.5V
16-SOIC (0.154", 3.90mm Width)
Mute, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA2028D1YZFR
Texas Instruments
IC AMP CLASS D MONO 3W 9DSBGA
In stock37480 pcs
9-DSBGA
Tape & Reel (TR)
TPA2028
3W x 1 @ 4Ohm
2.5V ~ 5.5V
9-UFBGA, DSBGA
AGC, Differential Inputs, DRC, I²C, Short-Circuit and Thermal Protection, Shutdown, Volume Control
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
SmartGain™
RFQ
TPA3003D2PFB
Texas Instruments
IC AMP CLASS D STER 3.75W 48TQFP
In stock4556 pcs
48-TQFP (7x7)
Tray
TPA300
3.75W x 2 @ 8Ohm
8.5V ~ 14V
48-TQFP
Differential Inputs, Short-Circuit and Thermal Protection, Shutdown, Volume Control
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX4409ETP+
Analog Devices Inc./Maxim Integrated
IC AMP CLASS AB STER 80MW 20TQFN
In stock14623 pcs
20-TQFN (4x4)
Tray
MAX4409
80mW x 2 @ 16Ohm
1.8V ~ 3.6V
20-WFQFN Exposed Pad
Depop, Short-Circuit and Thermal Protection, Shutdown
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectDrive®
RFQ
TPA2014D1RGPR
Texas Instruments
IC AMP CLASS D MONO 1.5W 20QFN
In stock43840 pcs
20-QFN (4x4)
Tape & Reel (TR)
TPA2014
1.5W x 1 @ 8Ohm
2.5V ~ 5.5V
20-VFQFN Exposed Pad
Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TAS5766MDCAR
Texas Instruments
IC AMP CLASS D STEREO 48HTSSOP
In stock14648 pcs
48-HTSSOP
Tape & Reel (TR)
TAS5766
-
3V ~ 3.6V
48-TFSOP (0.240", 6.10mm Width) Exposed Pad
Depop, Short-Circuit Protection
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 125°C (TA)
PurePath™
RFQ
DRV603PWR
Texas Instruments
IC AMP CLASS AB STEREO 14TSSOP
In stock67620 pcs
14-TSSOP
Tape & Reel (TR)
DRV603
-
3V ~ 5.5V
14-TSSOP (0.173", 4.40mm Width)
Depop, Differential Inputs, Short-Circuit Protection, Shutdown
2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectPath™
RFQ
PAM8403DR-H
Diodes Incorporated
IC AMP CLASS D STEREO 3W 16SOP
In stock133820 pcs
16-SOP
Tape & Reel (TR)
PAM8403
3W x 2 @ 4Ohm
2.8V ~ 5.5V
16-SOIC (0.154", 3.90mm Width)
Depop, Short-Circuit and Thermal Protection
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
NJM386D
Nisshinbo Micro Devices Inc.
IC AMP CLASS AB MONO 500MW 8DIP
In stock15400 pcs
8-DIP
Tube
-
500mW x 1 @ 16Ohm
4V ~ 12V
8-DIP (0.300", 7.62mm)
-
1-Channel (Mono)
Class AB
Through Hole
-40°C ~ 85°C (TA)
-
RFQ
TAS5706BPAP
Texas Instruments
IC AMP D DUAL/QUAD 20.6W 64HTQFP
In stock3068 pcs
64-HTQFP (10x10)
Tray
TAS5706
20.6W x 2 @ 8Ohm
10V ~ 26V
64-PowerTQFP
Depop, Digital Inputs, I²C, I²S, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control
2-Channel (Stereo) or 4-Channel (Quad)
Class D
Surface Mount
0°C ~ 85°C (TA)
-
RFQ
SSM2250RUZ-REEL
Analog Devices Inc.
IC AMP AUDIO PWR 1.5W AB 14TSSOP
In stock18311 pcs
14-TSSOP
Bulk
SSM2250
1.5W x 1 @ 8Ohm; 90mW x 2 @ 32Ohm
2.7V ~ 6V
14-TSSOP (0.173", 4.40mm Width)
Depop, Shutdown
1-Channel (Mono) with Stereo Headphones
Class AB
Surface Mount
-
SoundMAX®
RFQ
TPA3125D2N
Texas Instruments
IC AMP D MONO/STEREO 36W 20DIP
In stock12582 pcs
20-PDIP
Tube
TPA3125
36W x 1 @ 8Ohm; 10W x 2 @ 8Ohm
10V ~ 26V
20-DIP (0.300", 7.62mm)
Depop, Mute, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono) or 2-Channel (Stereo)
Class D
Through Hole
-40°C ~ 85°C (TA)
-
RFQ
MP7747DQ-LF-Z
Monolithic Power Systems Inc.
IC AMP CLASS D MONO 20W 10QFN
In stock46510 pcs
10-QFN (3x3)
Tape & Reel (TR)
MP7747
20W x 1 @ 4Ohm
9.5V ~ 36V
10-VFDFN Exposed Pad
Depop, Short-Circuit and Thermal Protection
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 125°C (TJ)
-
RFQ
TDA7265A
STMicroelectronics
IC AMP AB STEREO 25W 11MULTIWATT
In stock5543 pcs
11-Multiwatt
Tube
TDA7265
25W x 2 @ 8Ohm
±5V ~ 25V
Multiwatt-11 (Vertical, Bent and Staggered Leads)
Depop, Mute, Short-Circuit and Thermal Protection, Standby
2-Channel (Stereo)
Class AB
Through Hole
-20°C ~ 85°C (TA)
-
RFQ
TAS5352DDVR
Texas Instruments
IC AMP D MONO/STER 250W 44HTSSOP
In stock6185 pcs
44-HTSSOP
Tape & Reel (TR)
TAS5352
250W x 1 @ 2Ohm; 125W x 2 @ 4Ohm
10.8V ~ 13.2V
44-PowerTSSOP (0.244", 6.20mm Width)
Digital PWM Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono) or 2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 70°C (TA)
PurePath Digital™
RFQ
NCP2824FCT2G
onsemi
IC AMP D MONO 2.4W 9FLIPCHIP
In stock10840 pcs
9-FlipChip (1.45x1.45)
Tape & Reel (TR)
NCP2824
2.4W x 1 @ 4Ohm
2.5V ~ 5.5V
9-WFBGA, FCBGA
Differential Inputs, Short-Circuit and Thermal Protection
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
NOCAP™
RFQ
MAX9725CETC+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS AB STER 25MW 12TQFN
In stock16470 pcs
12-TQFN (4x4)
Tape & Reel (TR)
MAX9725
25mW x 2 @ 16Ohm
900mV ~ 1.8V
12-WQFN Exposed Pad
Depop, Short-Circuit Protection, Shutdown
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectDrive®
RFQ
TDA7499
STMicroelectronics
IC AMP AB STEREO 10W 11MULTIWATT
In stock7060 pcs
11-Multiwatt
Bulk
TDA7499
10W x 2 @ 8Ohm
10V ~ 36V, ±5V ~ 18V
Multiwatt-11 (Vertical, Bent and Staggered Leads)
Depop, Mute, Short-Circuit and Thermal Protection, Standby
2-Channel (Stereo)
Class AB
Through Hole
0°C ~ 70°C (TA)
-
RFQ
TPA2080D1YZGR
Texas Instruments
IC AMP CLSS D MONO 2.28W 12DSBGA
In stock49600 pcs
12-DSBGA
Tape & Reel (TR)
TPA2080D1
2.28W x 1 @ 4Ohm
2.5V ~ 5.2V
12-UFBGA, DSBGA
Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA112D
Texas Instruments
IC AMP CLASS AB STER 70MW 8SOIC
In stock49020 pcs
8-SOIC
Tube
TPA112
70mW x 2 @ 8Ohm
2.5V ~ 5.5V
8-SOIC (0.154", 3.90mm Width)
Depop, Short-Circuit and Thermal Protection
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA0152PWPR
Texas Instruments
IC AMP AB STEREO 2.8W 24HTSSOP
In stock15699 pcs
24-HTSSOP
Tape & Reel (TR)
TPA0152
2.8W x 2 @ 3Ohm
4.5V ~ 5.5V
24-PowerTSSOP (0.173", 4.40mm Width)
Depop, Differential Inputs, Input Multiplexer, Mute, Shutdown, Thermal Protection, Volume Control
2-Channel (Stereo) with Stereo Headphones
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MP7745DF-LF-Z
Monolithic Power Systems Inc.
IC AMP CLASS D STER 20W 20TSSOPF
In stock24772 pcs
20-TSSOPF-EP
Tape & Reel (TR)
MP7745
20W x 2 @ 4Ohm
-
20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Depop, Short-Circuit and Thermal Protection
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TAS5704PAPR
Texas Instruments
IC AMP D DUAL/QUAD 20.6W 64HTQFP
In stock5437 pcs
64-HTQFP (10x10)
Tape & Reel (TR)
TAS5704
20.6W x 2 @ 8Ohm
10V ~ 26V
64-PowerTQFP
Digital Inputs, I²S, Mute, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo) or 4-Channel (Quad)
Class D
Surface Mount
0°C ~ 85°C (TA)
-
RFQ
MAX4410EBE+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS AB STER 80MW 16UCSP
In stock44200 pcs
16-UCSP (2x2)
Tape & Reel (TR)
MAX4410
80mW x 2 @ 16Ohm
1.8V ~ 3.6V
16-WFBGA, CSPBGA
Depop, Short-Circuit and Thermal Protection, Shutdown
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectDrive®
RFQ
TS2012IQT
STMicroelectronics
IC AMP CLASS D STEREO 2.8W 20QFN
In stock8520 pcs
20-QFN (4x4)
Tape & Reel (TR)
TS2012
2.8W x 2 @ 4Ohm
2.5V ~ 5.5V
20-VFQFN Exposed Pad
Depop, Differential Inputs, Standby, Thermal Protection
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ