DG411DYZ
Intersil
IC SWITCH SPST-NCX4 35OHM 16SOIC
Na skladě10790 pcs
175ns, 145ns
5pC
9pF, 9pF
100pA
-85dB @ 1MHz
±5V ~ 20V
-
-
Bulk
5V ~ 44V
35Ohm
SPST - NC
1:1
-
4
16-SOIC
16-SOIC (0.154", 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX4502EUK+T
Analog Devices Inc./Maxim Integrated
IC SW SPST-NCX1 250OHM SOT23-5
Na skladě25026 pcs
75ns, 50ns
1pC
3pF, 3pF
1nA
-
-
-
MAX4502
Tape & Reel (TR)
2V ~ 12V
250Ohm
SPST - NC
1:1
-
1
SOT-23-5
SC-74A, SOT-753
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX355MJE
Analog Devices Inc./Maxim Integrated
IC SWITCH SP4T X 2 350OHM 16CDIP
Na skladě16890 pcs
250ns, 200ns
80pC
1.6pF, 5pF
500pA
-92dB @ 100kHz
±4.5V ~ 18V
7Ohm
MAX355
Tube
4.5V ~ 36V
350Ohm
SP4T
4:1
-
2
16-CDIP
16-CDIP (0.300", 7.62mm)
Through Hole
-55°C ~ 125°C (TA)
-
RFQ
DG4052EEQ-T1-GE3
Vishay Siliconix
IC SWITCH SP4T X 2 78OHM 16TSSOP
Na skladě39520 pcs
75ns, 88ns
0.3pC
2.2pF, 4.8pF
1nA
-105dB @ 100kHz
±3V ~ 8V
910mOhm
DG4052
Tape & Reel (TR)
3V ~ 16V
78Ohm
SP4T
4:1
353MHz
2
16-TSSOP
16-TSSOP (0.173', 4.40mm Width)
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
ADG719BRM
Analog Devices Inc.
IC SWITCH SPDT X 1 4OHM 8MSOP
Na skladě4260 pcs
7ns, 3ns (Typ)
-
7pF
250pA
-82dB @ 1MHz
-
-
ADG719
Tube
1.8V ~ 5.5V
4Ohm
SPDT
2:1
200MHz
1
8-MSOP
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
FSA1256L8X
onsemi
IC SW SPST-NOX2 1.15OHM 8MICROPK
Na skladě37986 pcs
35ns, 15ns
20pC
11.5pF
2nA (Typ)
-100dB @ 1MHz
-
60mOhm
FSA1256
Tape & Reel (TR)
1.65V ~ 5.5V
1.15Ohm
SPST - NO
1:1
300MHz
2
8-MicroPak™
8-UFQFN
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
CD22M3494SQ
Intersil
IC MUX 16:8 65OHM 44PLCC
Na skladě6671 pcs
100ns, 100ns
-
-
10µA
-40dB @ 10MHz
-
10Ohm
-
Bulk
4V ~ 15V
65Ohm
-
16:8
-
1
44-PLCC (16.58x16.58)
44-LCC (J-Lead)
Surface Mount
-40°C ~ 85°C
-
RFQ
ISL84715IHZ-T
Renesas Electronics America Inc
IC SW SPST-NOX1 400MOHM SC70-5
Na skladě43792 pcs
12ns, 8ns
70pC
68pF, 68pF
3nA
-
-
-
ISL84715
Tape & Reel (TR)
1.65V ~ 3.6V
400mOhm
SPST - NO
1:1
-
1
SC-70-5
5-TSSOP, SC-70-5, SOT-353
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TMUX1108PWR
Texas Instruments
IC MUX 8:1 4OHM 16TSSOP
Na skladě13778 pcs
12ns, 6ns (Typ)
-1pC
7pF, 60pF
80pA
-65dB ~ -45dB @ 1MHz ~ 10MHz
-
130mOhm
TMUX1108
Tape & Reel (TR)
1.08V ~ 5.5V
4Ohm
SP8T
8:1
90MHz
1
16-TSSOP
16-TSSOP (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
MAX303ESE+
Analog Devices Inc./Maxim Integrated
IC SWITCH SPDT X 2 35OHM 16SOIC
Na skladě3394 pcs
150ns, 100ns
10pC
12pF, 12pF
500pA
-90dB @ 1MHz
±4.5V ~ 20V
500mOhm
MAX303
Tube
10V ~ 30V
35Ohm
SPDT
2:1
-
2
16-SOIC
16-SOIC (0.154", 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ISL8499IRZ-T
Renesas Electronics America Inc
IC SWITCH SPDT X 4 250MOHM 16QFN
Na skladě11980 pcs
25ns, 23ns
-120pC
106pF
50nA
-98dB @ 100kHz
-
40mOhm
ISL8499
Tape & Reel (TR)
1.65V ~ 4.5V
250mOhm
SPDT
2:1
-
4
16-QFN (3x3)
16-VFQFN Exposed Pad
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX4736ELB+T
Analog Devices Inc./Maxim Integrated
IC SWITCH DUAL SPDT 10UDFN
Na skladě15306 pcs
-
-
-
-
-
-
-
MAX473
Strip
-
-
-
-
-
-
-
-
-
-
*
RFQ
ADG406BP
Analog Devices Inc.
IC MUX 16:1 80OHM 28PLCC
Na skladě7270 pcs
160ns, 150ns
8pC
5pF, 50pF
500pA
-85dB @ 100kHz
±15V
4Ohm
ADG406
Tube
12V
80Ohm
-
16:1
-
1
28-PLCC (11.51x11.51)
28-LCC (J-Lead)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX4619CUE+T
Analog Devices Inc./Maxim Integrated
IC SWITCH SPDT X 3 10OHM 16TSSOP
Na skladě12461 pcs
15ns, 10ns
3pC
5pF, 8.5pF
1nA
-96dB @ 100kHz
-
200mOhm
MAX4619
Tape & Reel (TR)
2V ~ 5.5V
10Ohm
SPDT
2:1
-
3
16-TSSOP
16-TSSOP (0.173", 4.40mm Width)
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
SN74LVC2G66DCTR
Texas Instruments
IC SWITCH SPST-NO X 2 10OHM SM8
Na skladě102780 pcs
3.9ns, 6.3ns
-
6pF
100nA
-58dB @ 1MHz
-
2Ohm (Max)
74LVC2G66
Tape & Reel (TR)
1.65V ~ 5.5V
10Ohm
SPST - NO
1:1
300MHz
2
SM8
8-LSSOP, 8-MSOP (0.110", 2.80mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX4520EUA+T
Analog Devices Inc./Maxim Integrated
IC SWITCH SPST-NOX1 160OHM 8UMAX
Na skladě12635 pcs
500ns, 175ns
1.5pC
10pF, 5pF
500pA
-
±4.5V ~ 20V
-
MAX4520
Tape & Reel (TR)
9V ~ 36V
160Ohm
SPST - NO
1:1
-
1
8-uMAX/uSOP
8-TSSOP, 8-MSOP (0.118', 3.00mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX4614CPD
Analog Devices Inc./Maxim Integrated
IC SWITCH SPST-NOX4 10OHM 14DIP
Na skladě13030 pcs
12ns, 10ns
6.5pC
5pF, 5pF
1nA
-96dB @ 100kHz
-
200mOhm
MAX4614
Tube
2V ~ 5.5V
10Ohm
SPST - NO
1:1
70MHz
4
14-PDIP
14-DIP (0.300', 7.62mm)
Through Hole
0°C ~ 70°C (TA)
-
RFQ
DG441DY-T1-E3
Vishay Siliconix
IC SWITCH SPST-NCX4 85OHM 16SOIC
Na skladě29176 pcs
220ns, 120ns
-1pC
4pF, 4pF
500pA
-100dB @ 1MHz
±15V
4Ohm (Max)
DG441
Tape & Reel (TR)
12V
85Ohm
SPST - NC
1:1
-
4
16-SOIC
16-SOIC (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
QS4A205QG
Renesas Electronics America Inc
IC SWITCH SPDT X 4 17OHM 16QSOP
Na skladě8022 pcs
6ns, 6ns
1.5pC
5.6pF, 7.4pF
2nA
-100dB @ 5MHz
-
-
QS4A205
Tube
5V
17Ohm
SPDT
2:1
830MHz
4
16-QSOP
16-SSOP (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MC74HC4066ADR2G
onsemi
IC SWITCH SPST-NOX4 70OHM 14SOIC
Na skladě108800 pcs
-
-
10pF
100nA
-80dB @ 1MHz
-
15Ohm
74HC4066
Tape & Reel (TR)
2V ~ 12V
70Ohm
SPST - NO
1:1
160MHz
4
14-SOIC
14-SOIC (0.154", 3.90mm Width)
Surface Mount
-55°C ~ 125°C (TA)
-
RFQ
HI3-0201-5
Intersil
IC SWITCH SPST-NCX4 80OHM 16DIP
Na skladě16995 pcs
500ns, 350ns
20pC
5pF, 5pF
10nA
-90dB @ 100kHz
±4.5V ~ 18V
-
-
Tube
5V ~ 30V
80Ohm
SPST - NC
1:1
-
4
16-PDIP
16-DIP (0.300", 7.62mm)
Through Hole
0°C ~ 70°C (TA)
-
RFQ
MAX4544EUT+T
Analog Devices Inc./Maxim Integrated
IC SWITCH SPDT X 1 60OHM SOT6
Na skladě24717 pcs
100ns, 75ns
1pC
8pF, 8pF
100pA
-90dB @ 1MHz
-
800mOhm
MAX4544
Tape & Reel (TR)
2.7V ~ 12V
60Ohm
SPDT
2:1
-
1
SOT-6
SOT-23-6
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ISL84523IBZ-T
Renesas Electronics America Inc
IC SW SPST-NO/NCX4 100OHM 16SOIC
Na skladě16740 pcs
80ns, 30ns
1pC
2pF, 2pF
1nA
-90dB @ 100kHz
±2V ~ 6V
1Ohm
ISL84523
Tape & Reel (TR)
2V ~ 12V
100Ohm
SPST - NO/NC
1:1
-
4
16-SOIC
16-SOIC (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX308EUE+T
Analog Devices Inc./Maxim Integrated
IC MUX 8:1 100OHM 16TSSOP
Na skladě5238 pcs
150ns, 150ns
2pC
3pF, 26pF
750pA
-92dB @ 100kHz
±5V ~ 20V
1.5Ohm
MAX308
Tape & Reel (TR)
5V ~ 30V
100Ohm
-
8:1
-
1
16-TSSOP
16-TSSOP (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MC74HC4053AFELG
onsemi
IC SWITCH SPDTX3 100OHM 16SOEIAJ
Na skladě16140 pcs
-
-
50pF
100nA
-60dB @ 1MHz
±2V ~ 6V
10Ohm
74HC4053
Tape & Reel (TR)
2V ~ 6V
100Ohm
SPDT
2:1
120MHz
3
16-SOEIAJ
16-SOIC (0.209", 5.30mm Width)
Surface Mount
-55°C ~ 125°C (TA)
-
RFQ
ISL8484IUZ-T
Renesas Electronics America Inc
IC SWITCH SPDTX2 500MOHM 10MSOP
Na skladě20898 pcs
40ns, 20ns
170pC
62pF
100nA
-85dB @ 100kHz
-
60mOhm
ISL8484
Tape & Reel (TR)
1.65V ~ 4.5V
500mOhm
SPDT
2:1
-
2
10-MSOP
10-TFSOP, 10-MSOP (0.118', 3.00mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
NLAST4501DFT2G
onsemi
IC SWITCH SPST-NOX1 25OHM SC88A
Na skladě228810 pcs
9ns, 10ns
3pC
10pF, 10pF
1nA
-
-
-
NLAST4501
Tape & Reel (TR)
2V ~ 5.5V
25Ohm
SPST - NO
1:1
220MHz
1
SC-88A (SC-70-5/SOT-353)
5-TSSOP, SC-70-5, SOT-353
Surface Mount
-55°C ~ 125°C (TA)
-
RFQ
ISL84684IUZ
Renesas Electronics America Inc
IC SWITCH SPDTX2 500MOHM 10MSOP
Na skladě8270 pcs
50ns, 27ns
94pC
65pF
4nA
-85dB @ 100kHz
-
55mOhm
ISL84684
Tube
1.65V ~ 3.6V
500mOhm
SPDT
2:1
-
2
10-MSOP
10-TFSOP, 10-MSOP (0.118', 3.00mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TS3A24157RSER
Texas Instruments
IC SWITCH SPDTX2 600MOHM 10UQFN
Na skladě66310 pcs
35ns, 25ns
8.75pC
50pF
50nA
-72dB @ 1MHz
-
50mOhm
TS3A24157
Tape & Reel (TR)
1.65V ~ 3.6V
600mOhm
SPDT
2:1
50MHz
2
10-UQFN (2.0x1.5)
10-UFQFN
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MC74HC4051AFEL
onsemi
IC MUX 8:1 100OHM 16SOEIAJ
Na skladě16380 pcs
-
-
130pF
200nA
-
±2V ~ 6V
10Ohm
74HC4051
Tape & Reel (TR)
2V ~ 6V
100Ohm
-
8:1
80MHz
1
16-SOEIAJ
16-SOIC (0.209", 5.30mm Width)
Surface Mount
-55°C ~ 125°C (TA)
-
RFQ
TS5A623157DGSR
Texas Instruments
IC SWITCH SPDT X 2 10OHM 10VSSOP
Na skladě126520 pcs
5ns, 3.4ns
110pC
5pF
20nA
-61dB @ 10MHz
-
100mOhm
TS5A623157
Tape & Reel (TR)
1.65V ~ 5.5V
10Ohm
SPDT
2:1
371MHz
2
10-VSSOP
10-TFSOP, 10-MSOP (0.118', 3.00mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
FSA3157BL6X
onsemi
IC SWITCH SPDTX1 15OHM 6MICROPAK
Na skladě16690 pcs
5.2ns, 3.5ns
7pC
6.5pF
100nA
-54dB @ 10MHz
-
150mOhm
FSA31
Tape & Reel (TR)
1.65V ~ 5.5V
15Ohm
SPDT
2:1
250MHz
1
6-MicroPak
6-UFDFN
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DG412DJ
Renesas Electronics America Inc
IC SWITCH SPST-NOX4 35OHM 16DIP
Na skladě11190 pcs
175ns, 145ns
5pC
9pF, 9pF
100pA
-85dB @ 1MHz
±5V ~ 20V
-
DG412
Tube
5V ~ 44V
35Ohm
SPST - NO
1:1
-
4
16-PDIP
16-DIP (0.300", 7.62mm)
Through Hole
-40°C ~ 85°C (TA)
-
RFQ
ADG432BRZ
Analog Devices Inc.
IC SWITCH SPST-NOX4 24OHM 16SOIC
Na skladě5626 pcs
90ns, 60ns
5pC
9pF, 9pF
250pA
-85dB @ 1MHz
±15V
1.2Ohm
ADG432
Tube
12V
24Ohm
SPST - NO
1:1
-
4
16-SOIC
16-SOIC (0.154", 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
CD74HC4051QPWRCT
Texas Instruments
8-CH ANALOG MUX/DEMUX
Na skladě225950 pcs
-
-
-
-
-
-
-
74HC4051
Bulk
-
-
-
-
-
-
-
-
-
-
*
RFQ
MAX4600CPE
Analog Devices Inc./Maxim Integrated
IC SW SPST-NO/NCX2 1.25OHM 16DIP
Na skladě11980 pcs
160ns, 210ns
-60pC
115pF, 115pF
500pA
-65dB @ 1MHz
±4.5V ~ 20V
50mOhm
MAX4600
Tube
4.5V ~ 36V
1.25Ohm
SPST - NO/NC
1:1
-
2
16-PDIP
16-DIP (0.300', 7.62mm)
Through Hole
0°C ~ 70°C (TA)
-
RFQ
TS5A9411DCKT
Texas Instruments
IC SWITCH SPDT X 1 9OHM SC70-6
Na skladě50260 pcs
9ns, 7ns
12.5pC
3.5pF
500pA
-85dB @ 1MHz
-
30mOhm
TS5A9411
Tape & Reel (TR)
2.25V ~ 5.5V
9Ohm
SPDT
2:1
100MHz
1
SC-70-6
6-TSSOP, SC-88, SOT-363
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ADG1223BRMZ
Analog Devices Inc.
IC SW SPST-NO/NCX2 200OHM 10MSOP
Na skladě13403 pcs
130ns, 105ns
0.1pC
2.2pF, 2.2pF
100pA
-90dB @ 1MHz
±5V ~ 16.5V
2.5Ohm
ADG1223
Tube
5V ~ 16.5V
200Ohm
SPST - NO/NC
1:1
960MHz
2
10-MSOP
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
ADG409BRZ
Analog Devices Inc.
IC SWITCH SP4T X 2 100OHM 16SOIC
Na skladě8696 pcs
-
20pC
11pF, 20pF
500pA
-85dB @ 100kHz
±15V
15Ohm (Max)
ADG409
Tube
12V
100Ohm
SP4T
4:1
-
2
16-SOIC
16-SOIC (0.154", 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX4691EGE+T
Analog Devices Inc./Maxim Integrated
IC MUX 8:1 70OHM 16QFN
Na skladě14100 pcs
300ns, 100ns
0.1pC
9pF, 68pF
1nA
-75dB @ 100kHz
±2V ~ 5.5V
2Ohm
MAX4691
Tape & Reel (TR)
2.7V ~ 11V
70Ohm
-
8:1
-
1
16-QFN (4x4)
16-VQFN Exposed Pad
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DG9461DY
Vishay Siliconix
IC SWITCH SPDT X 1 60OHM 8SOIC
Na skladě15200 pcs
75ns, 50ns
2pC
7pF
100pA
-
-
400mOhm
DG9461
Tube
2.7V ~ 5V
60Ohm
SPDT
2:1
-
1
8-SOIC
8-SOIC (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TS5A3159AYZPR
Texas Instruments
IC SWITCH SPDTX1 900MOHM 6DSBGA
Na skladě92270 pcs
30ns, 20ns
-20pC
18pF
20nA
-64dB @ 1MHz
-
50mOhm
TS5A3159
Tape & Reel (TR)
1.65V ~ 5.5V
900mOhm
SPDT
2:1
100MHz
1
6-DSBGA (1.39x.89)
6-XFBGA, DSBGA
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DG403CY
Analog Devices Inc./Maxim Integrated
IC SWITCH SPDT X 2 45OHM 16SOIC
Na skladě10750 pcs
150ns, 100ns
10pC
12pF, 12pF
500pA
-90dB @ 1MHz
±4.5V ~ 20V
500mOhm
DG403
Tube
10V ~ 30V
45Ohm
SPDT
2:1
-
2
16-SOIC
16-SOIC (0.154", 3.90mm Width)
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
DG202BDJ
Vishay Siliconix
IC SWITCH SPST-NOX4 85OHM 16DIP
Na skladě12220 pcs
300ns, 200ns
1pC
5pF, 5pF
500pA
-95dB @ 100kHz
±4.5V ~ 22V
2Ohm
DG202
Bulk
4.5V ~ 25V
85Ohm
SPST - NO
1:1
-
4
16-PDIP
16-DIP (0.300", 7.62mm)
Through Hole
-40°C ~ 85°C (TA)
-
RFQ
ADG802BRM-REEL7
Analog Devices Inc.
IC SW SPST-NCX1 300MOHM 8MSOP
Na skladě3710 pcs
45ns, 15ns
50pC
180pF, 180pF
250pA
-
-
-
ADG802
Tape & Reel (TR)
1.8V ~ 5.5V
300mOhm
SPST - NC
1:1
12MHz
1
8-MSOP
8-TSSOP, 8-MSOP (0.118', 3.00mm Width)
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
ISL84780IVZ-T
Intersil
IC SWITCH SPDTX4 600MOHM 16TSSOP
Na skladě11518 pcs
20ns, 14ns
-97pC
62pF
3nA
-98dB @ 100kHz
-
130mOhm
-
Bulk
1.65V ~ 3.6V
600mOhm
SPDT
2:1
-
4
16-TSSOP
16-TSSOP (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
BU4053BCF-E2
Rohm Semiconductor
IC SW SPDT-NO/NCX3 160OHM 16SOP
Na skladě65680 pcs
-
-
10pF
300nA
-
-
4Ohm
BU4053
Tape & Reel (TR)
3V ~ 18V
160Ohm
SPDT - NO/NC
2:1
-
3
16-SOP
16-SOIC (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DG403DY-T
Renesas Electronics America Inc
IC SWITCH SPDT X 2 45OHM 16SOIC
Na skladě4950 pcs
150ns, 100ns
60pC
12pF, 12pF
500pA
-90dB @ 1MHz
±5V ~ 17V
3Ohm
DG403
Tape & Reel (TR)
5V ~ 34V
45Ohm
SPDT
2:1
-
2
16-SOIC
16-SOIC (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DG441LDY-T1
Vishay Siliconix
IC SWITCH SPST-NCX4 30OHM 16SOIC
Na skladě9510 pcs
60ns, 35ns
5pC
5pF, 6pF
1nA
-95dB @ 1MHz
±3V ~ 6V
100mOhm
DG441
Tape & Reel (TR)
2.7V ~ 12V
30Ohm
SPST - NC
1:1
280MHz
4
16-SOIC
16-SOIC (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MUX08FSZ
Analog Devices Inc.
IC MUX 8:1 300OHM 16SOIC
Na skladě2173 pcs
2µs, 400ns
-
2.5pF, 7pF
1nA
-70dB @ 500kHz
-
21Ohm
MUX08
Tube
-
300Ohm
-
8:1
-
1
16-SOIC
16-SOIC (0.154", 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ