18121C474MAT2A
KYOCERA AVX
CAP CER 0.47UF 100V X7R 1812
På lager51040 pcs
General Purpose
-
1812 (4532 Metric)
X7R
0.040' (1.02mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
100V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.180' L x 0.126' W (4.57mm x 3.20mm)
-
-
0.47 µF
±20%
RFQ
GRM216R71E821KA01D
Murata Electronics
CAP CER 820PF 25V X7R 0805
På lager414000 pcs
General Purpose
-
0805 (2012 Metric)
X7R
0.028' (0.70mm)
-
-
-
-
-
-
GRM216R71E
Tape & Reel (TR)
GRM
-
25V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.079' L x 0.049' W (2.00mm x 1.25mm)
-
-
820 pF
±10%
RFQ
GRJ319R72A104KE11L
Murata Electronics
CAP CER 0.1UF 100V X7R 1206
På lager331500 pcs
Boardflex Sensitive
-
1206 (3216 Metric)
X7R
0.037' (0.95mm)
-
-
-
-
-
-
GRJ319R72A
Tape & Reel (TR)
GRJ
-
100V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.126' L x 0.063' W (3.20mm x 1.60mm)
-
Soft Termination
0.1 µF
±10%
RFQ
06036G474ZAT2A
KYOCERA AVX
CAP CER 0.47UF 6.3V Y5V 0603
På lager258500 pcs
General Purpose
-
0603 (1608 Metric)
Y5V (F)
0.035' (0.90mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
6.3V
-30°C ~ 85°C
-
Surface Mount, MLCC
0.063' L x 0.032' W (1.60mm x 0.81mm)
-
-
0.47 µF
-20%, +80%
RFQ
CL10C561JB8NNNL
Samsung Electro-Mechanics
CAP CER 560PF 50V NP0 0603
På lager700400 pcs
General Purpose
-
0603 (1608 Metric)
C0G, NP0
0.035' (0.90mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CL
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.063' L x 0.031' W (1.60mm x 0.80mm)
-
-
560 pF
±5%
RFQ
C3225X7R2E224M200AE
TDK Corporation
CAP CER 0.22UF 250V X7R 1210
På lager179080 pcs
Boardflex Sensitive
-
1210 (3225 Metric)
X7R
0.087" (2.20mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
C
-
250V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.126" L x 0.098" W (3.20mm x 2.50mm)
-
Soft Termination
0.22 µF
±20%
RFQ
0402ZC103JAT2A
KYOCERA AVX
CAP CER 10000PF 10V X7R 0402
På lager12359100 pcs
General Purpose
-
0402 (1005 Metric)
X7R
0.022" (0.56mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
10V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039" L x 0.020" W (1.00mm x 0.50mm)
-
-
10000 pF
±5%
RFQ
CL05C4R7CB51PNC
Samsung Electro-Mechanics
CAP CER 4.7PF 50V C0G/NP0 0402
På lager2786250 pcs
Automotive
-
0402 (1005 Metric)
C0G, NP0
0.022' (0.55mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CL
-
50V
-55°C ~ 125°C
AEC-Q200
Surface Mount, MLCC
0.039' L x 0.020' W (1.00mm x 0.50mm)
-
-
4.7 pF
±0.25pF
RFQ
06033C202KAT2A
KYOCERA AVX
CAP CER 2000PF 25V X7R 0603
På lager1327950 pcs
General Purpose
-
0603 (1608 Metric)
X7R
0.035" (0.90mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
25V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.063" L x 0.032" W (1.60mm x 0.81mm)
-
-
2000 pF
±10%
RFQ
0402YA1R6CAT2A
KYOCERA AVX
CAP CER 1.6PF 16V NP0 0402
På lager310200 pcs
General Purpose
-
0402 (1005 Metric)
C0G, NP0
0.022" (0.56mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
16V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039" L x 0.020" W (1.00mm x 0.50mm)
-
-
1.6 pF
±0.25pF
RFQ
CC1206JRNPO0BN681
YAGEO
CAP CER 680PF 100V C0G/NPO 1206
På lager384930 pcs
General Purpose
-
1206 (3216 Metric)
C0G, NP0
0.028" (0.70mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CC
-
100V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.126" L x 0.063" W (3.20mm x 1.60mm)
-
-
680 pF
±5%
RFQ
C1608C0G2E182J080AA
TDK Corporation
CAP CER 1800PF 250V C0G 0603
På lager1165850 pcs
General Purpose
-
0603 (1608 Metric)
C0G, NP0
0.035' (0.90mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
C
-
250V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.063' L x 0.031' W (1.60mm x 0.80mm)
-
-
1800 pF
±5%
RFQ
GRM033R61C223KE84D
Murata Electronics
CAP CER 0.022UF 16V X5R 0201
På lager3076400 pcs
General Purpose
-
0201 (0603 Metric)
X5R
0.013' (0.33mm)
-
-
-
-
-
-
GRM033R61C
Tape & Reel (TR)
GRM
-
16V
-55°C ~ 85°C
-
Surface Mount
0.024' L x 0.012' W (0.60mm x 0.30mm)
-
-
0.022 µF
±10%
RFQ
08051A680JAT2A
KYOCERA AVX
CAP CER 68PF 100V C0G/NP0 0805
På lager667600 pcs
General Purpose
-
0805 (2012 Metric)
C0G, NP0
0.037" (0.94mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
100V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.079" L x 0.049" W (2.01mm x 1.25mm)
-
-
68 pF
±5%
RFQ
CL21C150JBANNNC
Samsung Electro-Mechanics
CAP CER 15PF 50V C0G/NP0 0805
På lager557000 pcs
General Purpose
-
0805 (2012 Metric)
C0G, NP0
0.030' (0.75mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CL
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.079' L x 0.049' W (2.00mm x 1.25mm)
-
-
15 pF
±5%
RFQ
GRM1555C2A7R9DA01D
Murata Electronics
CAP CER 7.9PF 100V C0G/NP0 0402
På lager5091800 pcs
General Purpose
-
0402 (1005 Metric)
C0G, NP0
0.022" (0.55mm)
-
-
-
-
-
-
GRM1555C2A
Tape & Reel (TR)
GRM
-
100V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039" L x 0.020" W (1.00mm x 0.50mm)
-
-
7.9 pF
±0.5pF
RFQ
GRM1556T1H8R7DD01D
Murata Electronics
CAP CER 8.7PF 50V T2H 0402
På lager629500 pcs
General Purpose
-
0402 (1005 Metric)
T2H
0.022" (0.55mm)
-
-
-
-
-
-
GRM1556T1H
Tape & Reel (TR)
GRM
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039" L x 0.020" W (1.00mm x 0.50mm)
-
-
8.7 pF
±0.5pF
RFQ
GRM155R6YA474ME01D
Murata Electronics
CAP CER 0.47UF 35V X5R 0402
På lager817550 pcs
General Purpose
-
0402 (1005 Metric)
X5R
0.022" (0.55mm)
-
-
-
-
-
-
GRM155R6YA
Tape & Reel (TR)
GRM
-
35V
-55°C ~ 85°C
-
Surface Mount, MLCC
0.039" L x 0.020" W (1.00mm x 0.50mm)
-
-
0.47 µF
±20%
RFQ
TMK105B7222KV-F
Taiyo Yuden
CAP CER 2200PF 25V X7R 0402
På lager641100 pcs
SMPS Filtering
-
0402 (1005 Metric)
X7R
0.022' (0.55mm)
-
-
-
-
-
-
TMK105B
Tape & Reel (TR)
M
-
25V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039' L x 0.020' W (1.00mm x 0.50mm)
-
-
2200 pF
±10%
RFQ
GRM1555C1H2R2BZ01J
Murata Electronics
CAP CER 2.2PF 50V C0G/NP0 0402
På lager585700 pcs
General Purpose
-
0402 (1005 Metric)
C0G, NP0
0.022' (0.55mm)
-
-
-
-
-
-
GRM1555C1H
Tape & Reel (TR)
GRM
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039' L x 0.020' W (1.00mm x 0.50mm)
-
-
2.2 pF
±0.1pF
RFQ
CL10A225MQ8NNND
Samsung Electro-Mechanics
CAP CER 2.2UF 6.3V X5R 0603
På lager473300 pcs
General Purpose
-
0603 (1608 Metric)
X5R
0.035" (0.90mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CL
-
6.3V
-55°C ~ 85°C
-
Surface Mount, MLCC
0.063" L x 0.031" W (1.60mm x 0.80mm)
-
-
2.2 µF
±20%
RFQ
18122C334KAT2A
KYOCERA AVX
CAP CER 0.33UF 200V X7R 1812
På lager178650 pcs
General Purpose
-
1812 (4532 Metric)
X7R
0.090' (2.29mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
200V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.177' L x 0.126' W (4.50mm x 3.20mm)
-
-
0.33 µF
±10%
RFQ
CL05C100CB5NNNC
Samsung Electro-Mechanics
CAP CER 10PF 50V C0G/NP0 0402
På lager5461000 pcs
General Purpose
-
0402 (1005 Metric)
C0G, NP0
0.022' (0.55mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CL
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039' L x 0.020' W (1.00mm x 0.50mm)
-
-
10 pF
±0.25pF
RFQ
QMK212B7472KG-T
Taiyo Yuden
CAP CER 4700PF 250V X7R 0805
På lager849850 pcs
SMPS Filtering
-
0805 (2012 Metric)
X7R
0.053" (1.35mm)
-
-
-
-
-
-
QMK212B
Tape & Reel (TR)
M
-
250V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.079" L x 0.049" W (2.00mm x 1.25mm)
-
High Voltage
4700 pF
±10%
RFQ
GRM0336R1HR90BD01D
Murata Electronics
CAP CER 0.9PF 50V R2H 0201
På lager501700 pcs
General Purpose
-
0201 (0603 Metric)
R2H
0.013' (0.33mm)
-
-
-
-
-
-
GRM0336R1H
Tape & Reel (TR)
GRM
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.024' L x 0.012' W (0.60mm x 0.30mm)
-
-
0.9 pF
±0.1pF
RFQ
GRM1885C1H7R9CA01D
Murata Electronics
CAP CER 7.9PF 50V C0G/NP0 0603
På lager1915900 pcs
General Purpose
-
0603 (1608 Metric)
C0G, NP0
0.035' (0.90mm)
-
-
-
-
-
-
GRM1885C1H
Tape & Reel (TR)
GRM
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.063' L x 0.031' W (1.60mm x 0.80mm)
-
-
7.9 pF
±0.25pF
RFQ
08051A220KAT2P
KYOCERA AVX
CAP CER 22PF 100V NP0 0805
På lager729600 pcs
General Purpose
-
0805 (2012 Metric)
C0G, NP0
0.037" (0.94mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
100V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.079" L x 0.049" W (2.01mm x 1.25mm)
-
-
22 pF
±10%
RFQ
GCM1885C1H8R5DA16D
Murata Electronics
CAP CER 8.5PF 50V C0G/NP0 0603
På lager692050 pcs
Automotive
-
0603 (1608 Metric)
C0G, NP0
0.035' (0.90mm)
-
-
-
-
-
-
GCM1885C1H
Tape & Reel (TR)
GCM
-
50V
-55°C ~ 125°C
AEC-Q200
Surface Mount, MLCC
0.063' L x 0.031' W (1.60mm x 0.80mm)
-
-
8.5 pF
±0.5pF
RFQ
C0402JB1C101K020BC
TDK Corporation
CAP CER 100PF 16V JB 01005
På lager759200 pcs
General Purpose
-
01005 (0402 Metric)
JB
0.009' (0.22mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
C
-
16V
-25°C ~ 85°C
-
Surface Mount, MLCC
0.016' L x 0.008' W (0.40mm x 0.20mm)
-
Low ESL
100 pF
±10%
RFQ
GRM188R61A474KA61D
Murata Electronics
CAP CER 0.47UF 10V X5R 0603
På lager1159000 pcs
General Purpose
-
0603 (1608 Metric)
X5R
0.035" (0.90mm)
-
-
-
-
-
-
GRM188R61A
Tape & Reel (TR)
GRM
-
10V
-55°C ~ 85°C
-
Surface Mount, MLCC
0.063" L x 0.031" W (1.60mm x 0.80mm)
-
-
0.47 µF
±10%
RFQ
GRM1555C1H6R8BZ01J
Murata Electronics
CAP CER 6.8PF 50V C0G/NP0 0402
På lager687500 pcs
General Purpose
-
0402 (1005 Metric)
C0G, NP0
0.022' (0.55mm)
-
-
-
-
-
-
GRM1555C1H
Tape & Reel (TR)
GRM
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039' L x 0.020' W (1.00mm x 0.50mm)
-
-
6.8 pF
±0.1pF
RFQ
GRT155R61C224KE01D
Murata Electronics
CAP CER 0.22UF 16V X5R 0402
På lager2052600 pcs
Automotive
-
0402 (1005 Metric)
X5R
0.022' (0.55mm)
-
-
-
-
-
-
GRT155R61C
Tape & Reel (TR)
GRT
-
16V
-55°C ~ 85°C
AEC-Q200
Surface Mount, MLCC
0.039' L x 0.020' W (1.00mm x 0.50mm)
-
-
0.22 µF
±10%
RFQ
1210X106K160CT
Walsin Technology Corporation
CAP CER 10UF 16V X5R 1210
På lager294580 pcs
General Purpose
-
1210 (3225 Metric)
X5R
0.087" (2.20mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
16V
-55°C ~ 85°C
-
Surface Mount, MLCC
0.126" L x 0.098" W (3.20mm x 2.50mm)
-
-
10 µF
±10%
RFQ
UMK105CG681JVHF
Taiyo Yuden
CAP CER 680PF 50V C0G/NP0 0402
På lager1774150 pcs
Automotive
-
0402 (1005 Metric)
C0G, NP0
0.022' (0.55mm)
-
-
-
-
-
-
UMK105
Tape & Reel (TR)
M
-
50V
-55°C ~ 125°C
AEC-Q200
Surface Mount, MLCC
0.039' L x 0.020' W (1.00mm x 0.50mm)
-
-
680 pF
±5%
RFQ
GRM1885C2A2R5CA01D
Murata Electronics
CAP CER 2.5PF 100V C0G/NP0 0603
På lager716500 pcs
General Purpose
-
0603 (1608 Metric)
C0G, NP0
0.035' (0.90mm)
-
-
-
-
-
-
GRM1885C2A
Tape & Reel (TR)
GRM
-
100V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.063' L x 0.031' W (1.60mm x 0.80mm)
-
-
2.5 pF
±0.25pF
RFQ
12103C824JAT2A
KYOCERA AVX
CAP CER 0.82UF 25V X7R 1210
På lager96860 pcs
General Purpose
-
1210 (3225 Metric)
X7R
0.060" (1.52mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
25V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.126" L x 0.098" W (3.20mm x 2.50mm)
-
-
0.82 µF
±5%
RFQ
GRM0335C1E2R0CD01D
Murata Electronics
CAP CER 2PF 25V C0G/NP0 0201
På lager624100 pcs
General Purpose
-
0201 (0603 Metric)
C0G, NP0
0.013' (0.33mm)
-
-
-
-
-
-
GRM0335C1E
Tape & Reel (TR)
GRM
-
25V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.024' L x 0.012' W (0.60mm x 0.30mm)
-
-
2 pF
±0.25pF
RFQ
08052C471KAT9A
KYOCERA AVX
CAP CER 470PF 200V X7R 0805
På lager782000 pcs
General Purpose
-
0805 (2012 Metric)
X7R
0.037" (0.94mm)
-
-
-
-
-
-
-
Bulk
-
-
200V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.079" L x 0.049" W (2.01mm x 1.25mm)
-
-
470 pF
±10%
RFQ
GRM2166R1H120JZ01D
Murata Electronics
CAP CER 12PF 50V R2H 0805
På lager250000 pcs
General Purpose
-
0805 (2012 Metric)
R2H
0.028' (0.70mm)
-
-
-
-
-
-
GRM2166R1H
Tape & Reel (TR)
GRM
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.079' L x 0.049' W (2.00mm x 1.25mm)
-
-
12 pF
±5%
RFQ
CGA6M3X7R2E104K200AE
TDK Corporation
CAP CER 0.1UF 250V X7R 1210
På lager243720 pcs
Automotive, Boardflex Sensitive
-
1210 (3225 Metric)
X7R
0.091' (2.30mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CGA
-
250V
-55°C ~ 125°C
AEC-Q200
Surface Mount, MLCC
0.126' L x 0.098' W (3.20mm x 2.50mm)
-
Soft Termination
0.1 µF
±10%
RFQ
GRM2165C1H1R0CD01J
Murata Electronics
CAP CER 1PF 50V C0G/NP0 0805
På lager48400 pcs
General Purpose
-
0805 (2012 Metric)
C0G, NP0
0.028" (0.70mm)
-
-
-
-
-
-
GRM2165C1H
Tape & Reel (TR)
GRM
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.079" L x 0.049" W (2.00mm x 1.25mm)
-
-
1 pF
±0.25pF
RFQ
C0402C0G1C6R8B
TDK Corporation
CAP CER 6.8PF 16V C0G 01005
På lager1190200 pcs
General Purpose
-
01005 (0402 Metric)
C0G, NP0
0.009" (0.22mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
C
-
16V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.016" L x 0.008" W (0.40mm x 0.20mm)
-
-
6.8 pF
±0.1pF
RFQ
GRM0335C1E120GA01D
Murata Electronics
CAP CER 12PF 25V C0G/NP0 0201
På lager10685900 pcs
General Purpose
-
0201 (0603 Metric)
C0G, NP0
0.013' (0.33mm)
-
-
-
-
-
-
GRM0335C1E
Tape & Reel (TR)
GRM
-
25V
-55°C ~ 125°C
-
Surface Mount
0.024' L x 0.012' W (0.60mm x 0.30mm)
-
-
12 pF
±2%
RFQ
GRM0336R1E2R3CD01D
Murata Electronics
CAP CER 2.3PF 25V R2H 0201
På lager476700 pcs
General Purpose
-
0201 (0603 Metric)
R2H
0.013" (0.33mm)
-
-
-
-
-
-
GRM0336R1E
Tape & Reel (TR)
GRM
-
25V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.024" L x 0.012" W (0.60mm x 0.30mm)
-
-
2.3 pF
±0.25pF
RFQ
GRM1555C1H8R0DA01D
Murata Electronics
CAP CER 8PF 50V C0G/NP0 0402
På lager5347800 pcs
General Purpose
-
0402 (1005 Metric)
C0G, NP0
0.022" (0.55mm)
-
-
-
-
-
-
GRM1555C1H
Tape & Reel (TR)
GRM
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039" L x 0.020" W (1.00mm x 0.50mm)
-
-
8 pF
±0.5pF
RFQ
1206ZC135KAT2A
KYOCERA AVX
CAP CER 1.3UF 10V X7R 1206
På lager210810 pcs
General Purpose
-
1206 (3216 Metric)
X7R
0.050" (1.27mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
10V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.126" L x 0.063" W (3.20mm x 1.60mm)
-
-
1.3 µF
±10%
RFQ
GRM3196T2A620JD01D
Murata Electronics
CAP CER 62PF 100V T2H 1206
På lager538900 pcs
General Purpose
-
1206 (3216 Metric)
T2H
0.037" (0.95mm)
-
-
-
-
-
-
GRM3196T2A
Tape & Reel (TR)
GRM
-
100V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.126" L x 0.063" W (3.20mm x 1.60mm)
-
-
62 pF
±5%
RFQ
08051A471JHT6A
KYOCERA AVX
CAP CER 470PF 100V NP0 0805
På lager245800 pcs
General Purpose
-
0805 (2012 Metric)
C0G, NP0
0.037" (0.94mm)
-
-
-
-
-
-
-
Tray
-
-
100V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.079" L x 0.049" W (2.01mm x 1.25mm)
-
-
470 pF
±5%
RFQ
06033A4R7CAT2A
KYOCERA AVX
CAP CER 4.7PF 25V C0G/NP0 0603
På lager833900 pcs
General Purpose
-
0603 (1608 Metric)
C0G, NP0
0.035" (0.90mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
25V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.063" L x 0.032" W (1.60mm x 0.81mm)
-
-
4.7 pF
±0.25pF
RFQ
C4532JB1E226M250KA
TDK Corporation
CAP CER 22UF 25V JB 1812
På lager48800 pcs
General Purpose
-
1812 (4532 Metric)
JB
0.110" (2.80mm)
-
-
Cut Tape (CT)
Lead free / RoHS Compliant
1 (Unlimited)
445-11950-1
-
-
C
22µF ±20% 25V Ceramic Capacitor JB 1812 (4532 Metric)
25V
-25°C ~ 85°C
-
Surface Mount, MLCC
0.177" L x 0.126" W (4.50mm x 3.20mm)
-
Low ESL
22µF
±20%
RFQ