ADG509AKRZ-REEL7
Analog Devices Inc.
IC SWITCH SP4T X 2 450OHM 16SOIC
در انبار6197 pcs
300ns, 300ns
4pC
5pF, 11pF
1nA
-
±10.8V ~ 16.5V
22.5Ohm
ADG509
Tape & Reel (TR)
10.8V ~ 16.5V
450Ohm
SP4T
4:1
-
2
16-SOIC
16-SOIC (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DG333ADW
Vishay Siliconix
IC SWITCH SPDT X 4 45OHM 20SOIC
در انبار11450 pcs
175ns, 145ns
10pC
8pF
250pA
-80dB @ 1MHz
±4V ~ 22V
2Ohm (Max)
DG333
Tube
5V ~ 40V
45Ohm
SPDT
2:1
-
4
20-SOIC
20-SOIC (0.295', 7.50mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
STG4159BJR
STMicroelectronics
IC SW SPDTX1 300MOHM 7FLIPCHIP
در انبار13760 pcs
38ns, 17ns
140pC
30pF
30nA
-69dB @ 100kHz
-
3mOhm
STG4159
Tape & Reel (TR)
1.65V ~ 4.8V
300mOhm
SPDT
2:1
28MHz
1
7-FlipChip
7-WFBGA, FCBGA
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX4053AEEE+T
Analog Devices Inc./Maxim Integrated
IC SWITCH SPDT X 3 100OHM 16QSOP
در انبار9001 pcs
175ns, 150ns
2pC
2pF, 2pF
100pA
-90dB @ 100kHz
±2.7V ~ 8V
6Ohm (Max)
MAX4053
Tape & Reel (TR)
2V ~ 16V
100Ohm
SPDT
2:1
-
3
16-QSOP
16-SSOP (0.154", 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ADG1436YCPZ-REEL7
Analog Devices Inc.
IC SWITCH SPDTX2 1.8OHM 16LFCSP
در انبار7559 pcs
120ns, 130ns
-20pC
23pF, 50pF
550pA
-80dB @ 100kHz
±4.5V ~ 16.5V
100mOhm
ADG1436
Tape & Reel (TR)
5V ~ 16.5V
1.8Ohm
SPDT
2:1
110MHz
2
16-LFCSP-VQ (4x4)
16-VQFN Exposed Pad, CSP
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
ADG431BNZ
Analog Devices Inc.
IC SWITCH SPST-NCX4 24OHM 16DIP
در انبار9411 pcs
90ns, 60ns
5pC
9pF, 9pF
250pA
-85dB @ 1MHz
±15V
1.2Ohm
ADG431
Tube
12V
24Ohm
SPST - NC
1:1
-
4
16-PDIP
16-DIP (0.300', 7.62mm)
Through Hole
-40°C ~ 85°C (TA)
-
RFQ
DG441DYZ-T
Renesas Electronics America Inc
IC SWITCH SPST-NCX4 85OHM 16SOIC
در انبار23790 pcs
250ns, 120ns
-1pC
4pF, 4pF
500pA
-100dB @ 1MHz
±5V ~ 22V
-
DG441
Tape & Reel (TR)
5V ~ 34V
85Ohm
SPST - NC
1:1
-
4
16-SOIC
16-SOIC (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DG508ACJ+
Analog Devices Inc./Maxim Integrated
IC MUX 8:1 450OHM 16DIP
در انبار3927 pcs
1.5µs, 1µs
-
5pF, 25pF
1nA
-
±4.5V ~ 18V
27Ohm
DG508
Tube
-
450Ohm
-
8:1
-
1
16-PDIP
16-DIP (0.300', 7.62mm)
Through Hole
0°C ~ 70°C (TA)
-
RFQ
ADG1433YRUZ
Analog Devices Inc.
IC SWITCH SPDTX3 4.7OHM 16TSSOP
در انبار8042 pcs
170ns, 75ns
-50pC
12pF, 22pF
300pA
-70dB @ 1MHz
±4.5V ~ 16.5V
500mOhm
ADG1433
Tube
5V ~ 16.5V
4.7Ohm
SPDT
2:1
200MHz
3
16-TSSOP
16-TSSOP (0.173', 4.40mm Width)
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
ISL54053IHZ-T
Renesas Electronics America Inc
IC SWITCH SPDT X 1 860MOHM 6SOT
در انبار17446 pcs
24ns, 10ns
26pC
16pF
10nA
-83dB @ 100kHz
-
4mOhm
ISL54053
Tape & Reel (TR)
1.8V ~ 5.5V
860mOhm (Typ)
SPDT
2:1
190MHz
1
6-SOT
SOT-23-6
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
BU4052BCF-BZE2
Rohm Semiconductor
IC SWITCH SP4T X 2 160OHM 16SOP
در انبار12910 pcs
-
-
10pF
300nA
-
-
4Ohm
BU4052
Tape & Reel (TR)
3V ~ 18V
160Ohm
SP4T
4:1
-
2
16-SOP
16-SOIC (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX4646EUK-T
Analog Devices Inc./Maxim Integrated
IC SW SPST-NCX1 2.5OHM SOT23-5
در انبار14500 pcs
15ns, 10ns
5pC
17pF, 17pF
250pA
-
-
100mOhm
MAX4646
Tape & Reel (TR)
1.8V ~ 5V
2.5Ohm
SPST - NC
1:1
-
1
SOT-23-5
SC-74A, SOT-753
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
NLAS5223BLMNR2G
onsemi
IC SWITCH SPDTX2 350MOHM 10WQFN
در انبار120150 pcs
50ns, 50ns
38pC
60pF
500nA
-70dB @ 100kHz
-
50mOhm (Max)
NLAS5223
Tape & Reel (TR)
1.65V ~ 4.5V
350mOhm
SPDT
2:1
19MHz
2
10-WQFN (1.4x1.8)
10-WFQFN
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
RS2101XC6
Runic Technology
IC SWITCH SPDT X 1 4OHM SC70-6
در انبار189460 pcs
29ns (Typ), 17ns (Typ)
-
15pF
1µA
-
-
100mOhm (Typ)
-
Tape & Reel (TR)
1.8V ~ 5.5V
4Ohm
SPDT
2:1
120MHz
1
SC-70-6 (SOT-363)
6-TSSOP, SC-88, SOT-363
Surface Mount
-40°C ~ 125°C
-
RFQ
PS383CSE
Diodes Incorporated
IC SWITCH SPDT X 2 30OHM 16SOIC
در انبار16510 pcs
130ns, 75ns
2pC
12pF, 12pF
100pA
-90dB @ 1MHz
±3V ~ 8V
200mOhm
PS383
Tube
3V ~ 15V
30Ohm
SPDT
2:1
-
2
16-SOIC
16-SOIC (0.295', 7.50mm Width)
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
MAX335CWG+T
Analog Devices Inc./Maxim Integrated
IC SW SPST-NOX8 150OHM 24SOIC
در انبار7778 pcs
400ns, 400ns
-
2pF, 2pF
1nA
-100dB @ 100kHz
±4.5V ~ 20V
-
MAX335
Tape & Reel (TR)
-
150Ohm
SPST - NO
1:1
-
8
24-SOIC
24-SOIC (0.295', 7.50mm Width)
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
MAX323CPA
Analog Devices Inc./Maxim Integrated
IC SWITCH SPST-NO X 2 60OHM 8DIP
در انبار14430 pcs
150ns, 100ns
1pC
9pF, 9pF
100pA
-85dB @ 1MHz
-
800mOhm
MAX323
Tube
2.7V ~ 16V
60Ohm
SPST - NO
1:1
-
2
8-PDIP
8-DIP (0.300', 7.62mm)
Through Hole
0°C ~ 70°C (TA)
-
RFQ
ADG529AKN
Analog Devices Inc.
IC SWITCH SP4T X 2 450OHM 18DIP
در انبار8230 pcs
300ns, 300ns
4pC
5pF, 11pF
1nA
-
±10.8V ~ 16.5V
22.5Ohm
ADG529
Tube
10.8V ~ 16.5V
450Ohm
SP4T
4:1
-
2
18-PDIP
18-DIP (0.300", 7.62mm)
Through Hole
-40°C ~ 85°C (TA)
-
RFQ
DG418DY+T
Analog Devices Inc./Maxim Integrated
IC SWITCH SPST-NOX1 35OHM 8SOIC
در انبار9690 pcs
175ns, 145ns
3pC
8pF, 8pF
250pA
-85dB @ 1MHz
±4.5V ~ 20V
3Ohm (Max)
DG418
Tape & Reel (TR)
10V ~ 30V
35Ohm
SPST - NO
1:1
-
1
8-SOIC
8-SOIC (0.154", 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ADG444BRZ
Analog Devices Inc.
IC SWITCH SPST-NCX4 70OHM 16SOIC
در انبار18186 pcs
110ns, 60ns
1pC
4pF, 4pF
500pA
-100dB @ 1MHz
±15V
-
ADG444
Tube
12V
70Ohm
SPST - NC
1:1
-
4
16-SOIC
16-SOIC (0.154", 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ADG433BNZ
Analog Devices Inc.
IC SW SPST-NO/NCX4 24OHM 16DIP
در انبار12530 pcs
90ns, 60ns
5pC
9pF, 9pF
250pA
-85dB @ 1MHz
±15V
1.2Ohm
ADG433
Tube
12V
24Ohm
SPST - NO/NC
1:1
-
4
16-PDIP
16-DIP (0.300', 7.62mm)
Through Hole
-40°C ~ 85°C (TA)
-
RFQ
DG201BDJ-E3
Vishay Siliconix
IC SWITCH SPST-NCX4 85OHM 16DIP
در انبار24797 pcs
300ns, 200ns
1pC
5pF, 5pF
500pA
-95dB @ 100kHz
±4.5V ~ 22V
2Ohm
DG201
Tube
4.5V ~ 25V
85Ohm
SPST - NC
1:1
-
4
16-PDIP
16-DIP (0.300", 7.62mm)
Through Hole
-40°C ~ 85°C (TA)
-
RFQ
BU4066BCFV-E2
Rohm Semiconductor
IC SW SPST-NOX4 280OHM 14SSOP
در انبار68220 pcs
-
-
10pF
300nA
-50dB @ 1MHz
-
-
BU4066
Tape & Reel (TR)
3V ~ 18V
280Ohm
SPST - NO
1:1
-
4
14-SSOP-B
14-LSSOP (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ISL43410IUZ
Intersil
IC SWITCH DPDT X 1 50OHM 10MSOP
در انبار4830 pcs
25ns, 24ns (Typ)
1.2pC
4pF, 6pF
3nA
-85dB @ 1MHz
-
500mOhm
-
Bulk
2.7V ~ 12V
50Ohm
DPDT
2:2
-
1
10-MSOP
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ADG619BRT-500RL7
Analog Devices Inc.
IC SWITCH SPDT SOT23-8
در انبار11180 pcs
-
-
-
-
-
-
-
ADG619
Bulk
-
-
-
-
-
-
SOT-23-8
SOT-23-8
Surface Mount
-
-
RFQ
HI9P0509-5Z
Renesas Electronics America Inc
IC SWITCH SP4T X 2 400OHM 16SOIC
در انبار3600 pcs
250ns, 250ns (Typ)
-
10pF, 12pF
30pA (Typ)
-
±15V
20Ohm
HI9P0509
Tube
-
400Ohm
SP4T
4:1
-
2
16-SOIC
16-SOIC (0.154", 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
FSAL200QSC
onsemi
IC SWITCH SPDT X 4 12OHM 16QSOP
در انبار11800 pcs
20ns, 10ns
7pC
13pF
100µA
-70dB @ 30MHz
-
400mOhm
FSAL20
Tube
3V ~ 5.5V
12Ohm
SPDT
2:1
137MHz
4
16-QSOP
16-LSSOP (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ADG608BRU
Analog Devices Inc.
IC MUX 8:1 30OHM 16TSSOP
در انبار10710 pcs
75ns, 45ns
6pC
9pF, 40pF
500pA
-85dB @ 100kHz
±5V
5Ohm (Max)
ADG608
Tube
3.3V ~ 5V
30Ohm
-
8:1
-
1
16-TSSOP
16-TSSOP (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ADV3222ARZ
Analog Devices Inc.
IC SWITCH SP4T X 1 16SOIC
در انبار6794 pcs
-
-
1.8pF
2µA (Typ)
-58dB @ 100MHz
±4.5V ~ 5.5V
-
ADV3222
Tube
-
-
SP4T
4:1
800MHz
1
16-SOIC
16-SOIC (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ADG417BR-REEL
Analog Devices Inc.
IC SWITCH SPST-NCX1 35OHM 8SOIC
در انبار5170 pcs
160ns, 100ns
7pC
6pF, 6pF
250pA
-
±15V
-
ADG417
Tape & Reel (TR)
12V
35Ohm
SPST - NC
1:1
-
1
8-SOIC
8-SOIC (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ADG633YCPZ-REEL7
Analog Devices Inc.
IC SWITCH SPDT X 3 75OHM 16LFCSP
در انبار17728 pcs
95ns, 40ns
2pC
4pF, 7pF
200pA
-90dB @ 1MHz
±2V ~ 6V
800mOhm
ADG633
Tape & Reel (TR)
2V ~ 12V
75Ohm
SPDT
2:1
580MHz
3
16-LFCSP-VQ (4x4)
16-VQFN Exposed Pad, CSP
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX4614CSD
Analog Devices Inc./Maxim Integrated
IC SWITCH SPST-NOX4 10OHM 14SOIC
در انبار12220 pcs
12ns, 10ns
6.5pC
5pF, 5pF
1nA
-96dB @ 100kHz
-
200mOhm
MAX4614
Tube
2V ~ 5.5V
10Ohm
SPST - NO
1:1
70MHz
4
14-SOIC
14-SOIC (0.154", 3.90mm Width)
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
MAX4702EUE+
Analog Devices Inc./Maxim Integrated
IC SWITCH SPDT X 4 75OHM 16TSSOP
در انبار18290 pcs
35ns, 20ns
0.5pC
8pF
500pA
-79dB @ 1MHz
-
2Ohm
MAX4702
Tube
1.8V ~ 5.5V
75Ohm
SPDT
2:1
250MHz
4
16-TSSOP
16-TSSOP (0.173', 4.40mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX394CPP
Analog Devices Inc./Maxim Integrated
IC SWITCH SPDT X 4 35OHM 20DIP
در انبار14020 pcs
130ns, 75ns
5pC
12pF, 12pF
200pA
-88dB @ 1MHz
±2.7V ~ 8V
500mOhm
MAX394
Tube
2.7V ~ 15V
35Ohm
SPDT
2:1
-
4
20-PDIP
20-DIP (0.300', 7.62mm)
Through Hole
0°C ~ 70°C (TA)
-
RFQ
ADG1201BRJZ-R2
Analog Devices Inc.
IC SW SPST-NOX1 200OHM SOT23-6
در انبار14988 pcs
170ns, 105ns
-0.8pC
3pF, 3.3pF
100pA
-
±5V ~ 16.5V
-
ADG1201
Tape & Reel (TR)
5V ~ 16.5V
200Ohm
SPST - NO
1:1
660MHz
1
SOT-23-6
SOT-23-6
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
ADG1606BRUZ-REEL7
Analog Devices Inc.
IC MUX 16:1 5OHM 28TSSOP
در انبار6541 pcs
128ns, 109ns
33pC
18pF, 240pF
150pA
-62dB @ 1MHz
±3.3V ~ 8V
200mOhm
ADG1606
Tape & Reel (TR)
3.3V ~ 16V
5Ohm
-
16:1
22MHz
1
28-TSSOP
28-TSSOP (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
MAX4504EUK+T
Analog Devices Inc./Maxim Integrated
IC SW SPST-NCX1 250OHM SOT23-5
در انبار13950 pcs
150ns, 100ns
1pC
3pF, 3pF
1nA
-
±1V ~ 6V
-
MAX4504
Tape & Reel (TR)
-
250Ohm
SPST - NC
1:1
-
1
SOT-23-5
SC-74A, SOT-753
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DG4053AEN-T1-E4
Vishay Siliconix
IC SW SPDTX3 100OHM 16MINIQFN
در انبار3920 pcs
108ns, 92ns
0.25pC
3pF, 4pF
1nA
-67dB @ 10MHz
±2.5V ~ 5V
3Ohm
DG4053
Tape & Reel (TR)
2.7V ~ 12V
100Ohm
SPDT
2:1
730MHz
3
16-miniQFN (1.8x2.6)
16-WFQFN
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
CD74HCT4066QPWRQ1
Texas Instruments
IC SW SPST-NOX4 95OHM 14TSSOP
در انبار150150 pcs
24ns, 35ns
-
5pF
-
-72dB @ 1MHz
-
1Ohm
74HCT4066
Tape & Reel (TR)
4.5V ~ 5.5V
95Ohm
SPST - NO
1:1
200MHz
4
14-TSSOP
14-TSSOP (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 125°C (TA)
Automotive, AEC-Q100
RFQ
TS5A4594DBVR
Texas Instruments
IC SWITCH SPST-NOX1 8OHM SOT23-5
در انبار158270 pcs
17ns, 14ns
2pC
6.5pF, 6.5pF
500pA
-
-
-
TS5A4594
Tape & Reel (TR)
2V ~ 5.5V
8Ohm
SPST - NO
1:1
450MHz
1
SOT-23-5
SC-74A, SOT-753
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ISL84544IHZ-T
Renesas Electronics America Inc
IC SWITCH SPDT X 1 60OHM 6SOT
در انبار24804 pcs
100ns, 75ns
1pC
8pF, 8pF
100pA
-90dB @ 1MHz
-
800mOhm
ISL84544
Tape & Reel (TR)
2.7V ~ 12V
60Ohm
SPDT
2:1
-
1
6-SOT
SOT-23-6
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DG407DN
Vishay Siliconix
IC MUX DUAL 8:1 100OHM 28PLCC
در انبار14600 pcs
200ns, 150ns
15pC
8pF, 65pF
500pA
-
±5V ~ 20V
5Ohm
DG407
Tube
7.5V ~ 44V
100Ohm
-
8:1
-
2
28-PLCC (11.51x11.51)
28-LCC (J-Lead)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX4606ESE+
Analog Devices Inc./Maxim Integrated
IC SW SPST-NO/NCX4 4OHM 16SOIC
در انبار7467 pcs
120ns, 130ns
225pC
34pF, 34pF
500pA
-60dB @ 1MHz
±4.5V ~ 20V
200mOhm
MAX4606
Tube
4.5V ~ 36V
4Ohm
SPST - NO/NC
1:1
-
4
16-SOIC
16-SOIC (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ADG507AKNZ
Analog Devices Inc.
IC MUX DUAL 8:1 300OHM 28DIP
در انبار2917 pcs
300ns, 300ns
4pC
5pF, 22pF
1nA
-
±10.8V ~ 16.5V
15Ohm
ADG507
Tube
10.8V ~ 16.5V
300Ohm
-
8:1
-
2
28-PDIP
28-DIP (0.600", 15.24mm)
Through Hole
-40°C ~ 85°C (TA)
-
RFQ
ADG787BCPZ-REEL
Analog Devices Inc.
IC SWITCH SPDT X 2 3OHM 10LFCSP
در انبار17083 pcs
19ns, 5ns
14pC
16pF
50pA (Typ)
-110dB @ 1MHz
-
20mOhm
ADG787
Tape & Reel (TR)
1.8V ~ 5.5V
3Ohm
SPDT
2:1
145MHz
2
10-LFCSP-WD (3x3)
10-VFDFN Exposed Pad, CSP
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
NLVHC4051ADTR2G
onsemi
IC MUX 8:1 100OHM 16TSSOP
در انبار115460 pcs
-
-
130pF
200nA
-
±2V ~ 6V
10Ohm
NLVHC4051
Tape & Reel (TR)
2V ~ 6V
100Ohm
-
8:1
80MHz
1
16-TSSOP
16-TSSOP (0.173", 4.40mm Width)
Surface Mount
-55°C ~ 125°C (TA)
Automotive, AEC-Q100
RFQ
MAX4761ETX+
Analog Devices Inc./Maxim Integrated
IC SWITCH SPDT X 8 3.5OHM 36TQFN
در انبار5134 pcs
140ns, 50ns
15pC
25pF
5nA
-95dB @ 100kHz
-
200mOhm
MAX4761
Tube
1.8V ~ 5.5V
3.5Ohm
SPDT
2:1
150MHz
8
36-TQFN (6x6)
36-WFQFN Exposed Pad
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ADG453BRZ-REEL7
Analog Devices Inc.
IC SW SPST-NO/NCX4 5OHM 16SOIC
در انبار8144 pcs
180ns, 140ns
20pC
37pF, 37pF
500pA
-90dB @ 1MHz
±4.5V ~ 20V
100mOhm
ADG453
Tape & Reel (TR)
12V
5Ohm
SPST - NO/NC
1:1
-
4
16-SOIC
16-SOIC (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
SN74LVC1G66DBVRG4
Texas Instruments
IC SWITCH SPST-NOX1 10OHM SOT23
در انبار269310 pcs
4.2ns, 5ns
-
6pF
100nA
-
-
-
74LVC1G66
Tape & Reel (TR)
1.65V ~ 5.5V
10Ohm
SPST - NO
1:1
300MHz
1
SOT-23-5
SC-74A, SOT-753
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
AD7503KQ
Analog Devices Inc.
IC MUX 8:1 300OHM 16CERDIP
در انبار10480 pcs
800ns, 800ns (Typ)
-
5pF, 30pF
2nA
-
±15V
12Ohm
AD7503
Tube
-
300Ohm
-
8:1
-
1
16-CERDIP
16-CDIP (0.300', 7.62mm)
Through Hole
-25°C ~ 85°C (TA)
-
RFQ