1808SC182KAT1A
KYOCERA AVX
CAP CER 1800PF 1.5KV X7R 1808
Stokta var619500 pcs
General Purpose
-
1808 (4520 Metric)
X7R
0.071" (1.80mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
1500V (1.5kV)
-55°C ~ 125°C
-
Surface Mount, MLCC
0.181" L x 0.079" W (4.60mm x 2.00mm)
-
High Voltage
1800 pF
±10%
RFQ
C3216JB1H106K160AB
TDK Corporation
CAP CER 10UF 50V JB 1206
Stokta var151650 pcs
General Purpose
-
1206 (3216 Metric)
JB
0.071" (1.80mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
C
-
50V
-25°C ~ 85°C
-
Surface Mount, MLCC
0.126" L x 0.063" W (3.20mm x 1.60mm)
-
Low ESL
10 µF
±10%
RFQ
1210SC392KAT1A
KYOCERA AVX
CAP CER 3900PF 1.5KV X7R 1210
Stokta var512700 pcs
General Purpose
-
1210 (3225 Metric)
X7R
0.087' (2.20mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
1500V (1.5kV)
-55°C ~ 125°C
-
Surface Mount, MLCC
0.130' L x 0.098' W (3.30mm x 2.50mm)
-
High Voltage
3900 pF
±10%
RFQ
CC0603CRNPO9BN1R2
YAGEO
CAP CER 1.2PF 50V C0G/NPO 0603
Stokta var3800200 pcs
General Purpose
-
0603 (1608 Metric)
C0G, NP0
0.035' (0.90mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CC
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.063' L x 0.031' W (1.60mm x 0.80mm)
-
-
1.2 pF
±0.25pF
RFQ
2225CC152MAT9A
KYOCERA AVX
CAP CER 1500PF 630V X7R 2225
Stokta var727100 pcs
General Purpose
-
2225 (5763 Metric)
X7R
0.100" (2.54mm)
-
-
-
-
-
-
-
Bulk
-
-
630V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.225" L x 0.250" W (5.72mm x 6.35mm)
-
High Voltage
1500 pF
±20%
RFQ
C0603C100J5GAC7867
KEMET
CAP CER 10PF 50V C0G/NP0 0603
Stokta var1478500 pcs
General Purpose
-
0603 (1608 Metric)
C0G, NP0
0.034' (0.87mm)
-
-
-
-
-
-
C0603C
Tape & Reel (TR)
SMD Comm C0G
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.063' L x 0.031' W (1.60mm x 0.80mm)
-
Low ESL
10 pF
±5%
RFQ
CC0402FRNPO9BN220
YAGEO
CAP CER 22PF 50V C0G/NPO 0402
Stokta var2508700 pcs
General Purpose
-
0402 (1005 Metric)
C0G, NP0
0.022' (0.55mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CC
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039' L x 0.020' W (1.00mm x 0.50mm)
-
-
22 pF
±1%
RFQ
GRM1556R1H8R2DZ01D
Murata Electronics
CAP CER 8.2PF 50V R2H 0402
Stokta var214100 pcs
General Purpose
-
0402 (1005 Metric)
R2H
0.022' (0.55mm)
-
-
-
-
-
-
GRM1556R1H
Tape & Reel (TR)
GRM
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039' L x 0.020' W (1.00mm x 0.50mm)
-
-
8.2 pF
±0.5pF
RFQ
08051U1R6BAT2A
KYOCERA AVX
CAP CER 1.6PF 100V NP0 0805
Stokta var398980 pcs
RF, Microwave, High Frequency
-
0805 (2012 Metric)
C0G, NP0
0.045" (1.15mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
U
-
100V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.079" L x 0.049" W (2.01mm x 1.25mm)
-
Ultra Low ESR
1.6 pF
±0.1pF
RFQ
CC0805ZRY5V7BB225
YAGEO
CAP CER 2.2UF 16V Y5V 0805
Stokta var1208200 pcs
General Purpose
-
0805 (2012 Metric)
Y5V (F)
0.037" (0.95mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CC
-
16V
-30°C ~ 85°C
-
Surface Mount, MLCC
0.079" L x 0.049" W (2.00mm x 1.25mm)
-
-
2.2 µF
-20%, +80%
RFQ
TMK212B7105MG-T
Taiyo Yuden
CAP CER 1UF 25V X7R 0805
Stokta var406600 pcs
SMPS Filtering
-
0805 (2012 Metric)
X7R
0.053" (1.35mm)
-
-
-
-
-
-
TMK212B
Tape & Reel (TR)
M
-
25V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.079" L x 0.049" W (2.00mm x 1.25mm)
-
-
1 µF
±20%
RFQ
22251C824KAT2A
KYOCERA AVX
CAP CER 0.82UF 100V X7R 2225
Stokta var41640 pcs
General Purpose
-
2225 (5763 Metric)
X7R
0.060" (1.52mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
100V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.225" L x 0.250" W (5.72mm x 6.35mm)
-
-
0.82 µF
±10%
RFQ
GRM1556R1H110GZ01D
Murata Electronics
CAP CER 11PF 50V R2H 0402
Stokta var203600 pcs
General Purpose
-
0402 (1005 Metric)
R2H
0.022' (0.55mm)
-
-
-
-
-
-
GRM1556R1H
Tape & Reel (TR)
GRM
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039' L x 0.020' W (1.00mm x 0.50mm)
-
-
11 pF
±2%
RFQ
C2012X7R1E684K125AB
TDK Corporation
CAP CER 0.68UF 25V X7R 0805
Stokta var722400 pcs
General Purpose
-
0805 (2012 Metric)
X7R
0.057" (1.45mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
C
-
25V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.079" L x 0.049" W (2.00mm x 1.25mm)
-
Low ESL
0.68 µF
±10%
RFQ
GRM1555C1H5R3WA01D
Murata Electronics
CAP CER 5.3PF 50V C0G/NP0 0402
Stokta var1098800 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)
-
-
5.3 pF
±0.05pF
RFQ
18125C105KAT2A
KYOCERA AVX
CAP CER 1UF 50V X7R 1812
Stokta var161030 pcs
General Purpose
-
1812 (4532 Metric)
X7R
0.050' (1.27mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.177' L x 0.126' W (4.50mm x 3.20mm)
-
-
1 µF
±10%
RFQ
06035A470K4T2A
KYOCERA AVX
CAP CER 47PF 50V NP0 0603
Stokta var1021150 pcs
Automotive
-
0603 (1608 Metric)
C0G, NP0
0.035' (0.90mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
50V
-55°C ~ 125°C
AEC-Q200
Surface Mount, MLCC
0.063' L x 0.032' W (1.60mm x 0.81mm)
-
-
47 pF
±10%
RFQ
GCM1885C2A301JA16D
Murata Electronics
CAP CER 300PF 100V C0G/NP0 0603
Stokta var914350 pcs
Automotive
-
0603 (1608 Metric)
C0G, NP0
0.035' (0.90mm)
-
-
-
-
-
-
GCM1885C2A
Tape & Reel (TR)
GCM
-
100V
-55°C ~ 125°C
AEC-Q200
Surface Mount, MLCC
0.063' L x 0.031' W (1.60mm x 0.80mm)
-
-
300 pF
±5%
RFQ
VJ1210Y473KXBAT
Vishay Vitramon
CAP CER 0.047UF 100V X7R 1210
Stokta var249060 pcs
General Purpose
-
1210 (3225 Metric)
X7R
0.067" (1.70mm)
-
-
-
-
-
-
VJ1210
Tape & Reel (TR)
VJ
-
100V
-55°C ~ 150°C
-
Surface Mount, MLCC
0.126" L x 0.098" W (3.20mm x 2.50mm)
-
-
0.047 µF
±10%
RFQ
EMK042CG560JC-FW
Taiyo Yuden
CAP CER 56PF 16V C0G/NP0 01005
Stokta var765500 pcs
General Purpose
-
01005 (0402 Metric)
C0G, NP0
0.009" (0.22mm)
-
-
-
-
-
-
EMK042C
Tape & Reel (TR)
M
-
16V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.016" L x 0.008" W (0.40mm x 0.20mm)
-
-
56 pF
±5%
RFQ
1812AC103KATMEJ
KYOCERA AVX
CAP CER 10000PF 1KV X7R 1812
Stokta var615600 pcs
General Purpose
-
1812 (4532 Metric)
X7R
0.087' (2.20mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
1000V (1kV)
-55°C ~ 125°C
-
Surface Mount, MLCC
0.181' L x 0.126' W (4.60mm x 3.20mm)
-
High Voltage
10000 pF
±10%
RFQ
C1005X7S2A222K050BB
TDK Corporation
CAP CER 2200PF 100V X7S 0402
Stokta var1904850 pcs
General Purpose
-
0402 (1005 Metric)
X7S
0.022' (0.55mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
C
-
100V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039' L x 0.020' W (1.00mm x 0.50mm)
-
-
2200 pF
±10%
RFQ
GRM1555C1E7R3DZ01D
Murata Electronics
CAP CER 7.3PF 25V C0G/NP0 0402
Stokta var351600 pcs
General Purpose
-
0402 (1005 Metric)
C0G, NP0
0.022" (0.55mm)
-
-
-
-
-
-
GRM1555C1E
Tape & Reel (TR)
GRM
-
25V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039" L x 0.020" W (1.00mm x 0.50mm)
-
-
7.3 pF
±0.5pF
RFQ
22201C684KA11A
KYOCERA AVX
CAP CER 0.68UF 100V X7R 2220
Stokta var11758 pcs
General Purpose
-
2220 (5750 Metric)
X7R
0.090" (2.29mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
100V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.224" L x 0.197" W (5.70mm x 5.00mm)
-
-
0.68 µF
±10%
RFQ
08052U9R1JAT2A
KYOCERA AVX
CAP CER 9.1PF 200V NP0 0805
Stokta var568800 pcs
RF, Microwave, High Frequency
-
0805 (2012 Metric)
C0G, NP0
0.045" (1.15mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
U
-
200V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.079" L x 0.049" W (2.01mm x 1.25mm)
-
Ultra Low ESR
9.1 pF
±5%
RFQ
0805YC392KAT2A
KYOCERA AVX
CAP CER 3900PF 16V X7R 0805
Stokta var853300 pcs
General Purpose
-
0805 (2012 Metric)
X7R
0.037" (0.94mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
16V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.079" L x 0.049" W (2.01mm x 1.25mm)
-
-
3900 pF
±10%
RFQ
08055A820J4T2A
KYOCERA AVX
CAP CER 82PF 50V NP0 0805
Stokta var668350 pcs
Automotive
-
0805 (2012 Metric)
C0G, NP0
0.037' (0.94mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
50V
-55°C ~ 125°C
AEC-Q200
Surface Mount, MLCC
0.079' L x 0.049' W (2.00mm x 1.25mm)
-
-
82 pF
±5%
RFQ
C1608JB1V334K080AB
TDK Corporation
CAP CER 0.33UF 35V JB 0603
Stokta var586650 pcs
General Purpose
-
0603 (1608 Metric)
JB
0.035" (0.90mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
C
-
35V
-25°C ~ 85°C
-
Surface Mount, MLCC
0.063" L x 0.031" W (1.60mm x 0.80mm)
-
Low ESL
0.33 µF
±10%
RFQ
C3225X7R2J683K200AA
TDK Corporation
CAP CER 0.068UF 630V X7R 1210
Stokta var111390 pcs
General Purpose
-
1210 (3225 Metric)
X7R
0.087" (2.20mm)
-
-
Digi-Reel®
Lead free / RoHS Compliant
1 (Unlimited)
445-4504-6
-
-
C
0.068µF ±10% 630V Ceramic Capacitor X7R 1210 (3225 Metric)
630V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.126" L x 0.098" W (3.20mm x 2.50mm)
-
-
0.068µF
±10%
RFQ
GRM0335C1H101GA01D
Murata Electronics
CAP CER 100PF 50V C0G/NP0 0201
Stokta var11080600 pcs
General Purpose
-
0201 (0603 Metric)
C0G, NP0
0.013' (0.33mm)
-
-
-
-
-
-
GRM0335C1H
Tape & Reel (TR)
GRM
-
50V
-55°C ~ 125°C
-
Surface Mount
0.024' L x 0.012' W (0.60mm x 0.30mm)
-
-
100 pF
±2%
RFQ
C3216X5R1H335K160AB
TDK Corporation
CAP CER 3.3UF 50V X5R 1206
Stokta var130600 pcs
General Purpose
-
1206 (3216 Metric)
X5R
0.071" (1.80mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
C
-
50V
-55°C ~ 85°C
-
Surface Mount, MLCC
0.126" L x 0.063" W (3.20mm x 1.60mm)
-
Low ESL
3.3 µF
±10%
RFQ
GRM1555C1E1R1BZ01D
Murata Electronics
CAP CER 1.1PF 25V C0G/NP0 0402
Stokta var516500 pcs
General Purpose
-
0402 (1005 Metric)
C0G, NP0
0.022' (0.55mm)
-
-
-
-
-
-
GRM1555C1E
Tape & Reel (TR)
GRM
-
25V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039' L x 0.020' W (1.00mm x 0.50mm)
-
-
1.1 pF
±0.1pF
RFQ
EMK212BJ475MG-T
Taiyo Yuden
CAP CER 4.7UF 16V X5R 0805
Stokta var605900 pcs
SMPS Filtering
-
0805 (2012 Metric)
X5R
0.053" (1.35mm)
-
-
-
-
-
-
EMK212B
Tape & Reel (TR)
M
-
16V
-55°C ~ 85°C
-
Surface Mount, MLCC
0.079" L x 0.049" W (2.00mm x 1.25mm)
-
-
4.7 µF
±20%
RFQ
12107A221JAT2A
KYOCERA AVX
CAP CER 220PF 500V NP0 1210
Stokta var136780 pcs
General Purpose
-
1210 (3225 Metric)
C0G, NP0
0.037" (0.94mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
500V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.126" L x 0.098" W (3.20mm x 2.50mm)
-
-
220 pF
±5%
RFQ
C3225X5R1H475K250AB
TDK Corporation
CAP CER 4.7UF 50V X5R 1210
Stokta var129020 pcs
General Purpose
-
1210 (3225 Metric)
X5R
0.110" (2.80mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
C
-
50V
-55°C ~ 85°C
-
Surface Mount, MLCC
0.126" L x 0.098" W (3.20mm x 2.50mm)
-
Low ESL
4.7 µF
±10%
RFQ
GRM1535C1H180JDD5D
Murata Electronics
CAP CER 18PF 50V C0G/NP0 0402
Stokta var344400 pcs
General Purpose
-
0402 (1005 Metric)
C0G, NP0
0.013" (0.33mm)
-
-
-
-
-
-
GRM1535C1H
Tape & Reel (TR)
GRM
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039" L x 0.020" W (1.00mm x 0.50mm)
-
-
18 pF
±5%
RFQ
C3225X7R2E224K200AA
TDK Corporation
CAP CER 0.22UF 250V X7R 1210
Stokta var203580 pcs
General Purpose
-
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)
-
-
0.22 µF
±10%
RFQ
CL32A106KOTLNNF
Samsung Electro-Mechanics
CAP CER 10UF 16V X5R 1210
Stokta var626400 pcs
General Purpose
-
1210 (3225 Metric)
X5R
0.067" (1.70mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CL
-
16V
-55°C ~ 85°C
-
Surface Mount, MLCC
0.126" L x 0.098" W (3.20mm x 2.50mm)
-
-
10 µF
±10%
RFQ
CC1206JRNPOBBN221
YAGEO
CAP CER 220PF 500V C0G/NPO 1206
Stokta var596400 pcs
General Purpose
-
1206 (3216 Metric)
C0G, NP0
0.028' (0.70mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CC
-
500V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.126' L x 0.063' W (3.20mm x 1.60mm)
-
-
220 pF
±5%
RFQ
CC1206KKX7R8BB334
YAGEO
CAP CER 0.33UF 25V X7R 1206
Stokta var581800 pcs
General Purpose
-
1206 (3216 Metric)
X7R
0.033" (0.85mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CC
-
25V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.126" L x 0.063" W (3.20mm x 1.60mm)
-
-
0.33 µF
±10%
RFQ
GRM0335C1HR40WD01D
Murata Electronics
CAP CER 0.4PF 50V C0G/NP0 0201
Stokta var630200 pcs
General Purpose
-
0201 (0603 Metric)
C0G, NP0
0.013' (0.33mm)
-
-
-
-
-
-
GRM0335C1H
Tape & Reel (TR)
GRM
-
50V
-55°C ~ 125°C
-
Surface Mount
0.024' L x 0.012' W (0.60mm x 0.30mm)
-
-
0.4 pF
±0.05pF
RFQ
GCJ188R72A152KA01D
Murata Electronics
CAP CER 1500PF 100V X7R 0603
Stokta var1434050 pcs
Automotive, Boardflex Sensitive
-
0603 (1608 Metric)
X7R
0.031' (0.80mm)
-
-
-
-
-
-
GCJ188R72A
Tape & Reel (TR)
GCJ
-
100V
-55°C ~ 125°C
AEC-Q200
Surface Mount, MLCC
0.063' L x 0.031' W (1.60mm x 0.80mm)
-
Soft Termination
1500 pF
±10%
RFQ
CL10B561KC8WPNC
Samsung Electro-Mechanics
CAP CER 560PF 100V X7R 0603
Stokta var325500 pcs
Automotive
-
0603 (1608 Metric)
X7R
0.035' (0.90mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CL
-
100V
-55°C ~ 125°C
AEC-Q200
Surface Mount, MLCC
0.063' L x 0.031' W (1.60mm x 0.80mm)
-
Open Mode
560 pF
±10%
RFQ
0805YC823KAT4A
KYOCERA AVX
CAP CER 0.082UF 16V X7R 0805
Stokta var855200 pcs
General Purpose
-
0805 (2012 Metric)
X7R
0.037" (0.94mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
-
-
16V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.079" L x 0.049" W (2.01mm x 1.25mm)
-
-
0.082 µF
±10%
RFQ
C2012JB2E472M085AA
TDK Corporation
CAP CER 4700PF 250V JB 0805
Stokta var1111250 pcs
General Purpose
-
0805 (2012 Metric)
JB
0.039' (1.00mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
C
-
250V
-25°C ~ 85°C
-
Surface Mount, MLCC
0.079' L x 0.049' W (2.00mm x 1.25mm)
-
-
4700 pF
±20%
RFQ
CC0603JRNPO0BN200
YAGEO
CAP CER 20PF 100V C0G/NPO 0603
Stokta var2615150 pcs
General Purpose
-
0603 (1608 Metric)
C0G, NP0
0.035" (0.90mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CC
-
100V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.063" L x 0.031" W (1.60mm x 0.80mm)
-
-
20 pF
±5%
RFQ
UMK105CH150JV-F
Taiyo Yuden
CAP CER 15PF 50V C0H 0402
Stokta var8380200 pcs
General Purpose
-
0402 (1005 Metric)
C0H
0.022' (0.55mm)
-
-
-
-
-
-
UMK105
Tape & Reel (TR)
M
-
50V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.039' L x 0.020' W (1.00mm x 0.50mm)
-
-
15 pF
±5%
RFQ
C2012JB2A472K085AA
TDK Corporation
CAP CER 4700PF 100V JB 0805
Stokta var1002300 pcs
General Purpose
-
0805 (2012 Metric)
JB
0.039" (1.00mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
C
-
100V
-25°C ~ 85°C
-
Surface Mount, MLCC
0.079" L x 0.049" W (2.00mm x 1.25mm)
-
-
4700 pF
±10%
RFQ
CC0603JRNPO8BN561
YAGEO
CAP CER 560PF 25V C0G/NPO 0603
Stokta var1922100 pcs
General Purpose
-
0603 (1608 Metric)
C0G, NP0
0.035' (0.90mm)
-
-
-
-
-
-
-
Tape & Reel (TR)
CC
-
25V
-55°C ~ 125°C
-
Surface Mount, MLCC
0.063' L x 0.031' W (1.60mm x 0.80mm)
-
-
560 pF
±5%
RFQ
GRM022R61A102ME19L
Murata Electronics
CAP CER 1000PF 10V X5R 01005
Stokta var7911100 pcs
General Purpose
-
01005 (0402 Metric)
X5R
0.009" (0.22mm)
-
-
-
-
-
-
GRM022R61A
Tape & Reel (TR)
GRM
-
10V
-55°C ~ 85°C
-
Surface Mount, MLCC
0.016" L x 0.008" W (0.40mm x 0.20mm)
-
-
1000 pF
±20%
RFQ