
Items : %s%s
Through Hole Resistors
Compare | Image | Name | Manufacturer | Pricing(USD) | Quantity | Weight(Kg) | Size(LxWxH) | Factory Lead Time | Packaging | Published | Series | Pbfree Code | Part Status | Moisture Sensitivity Level (MSL) | Number of Terminations | ECCN Code | Max Operating Temperature | Min Operating Temperature | Length | RoHS Status | Package / Case | Reach Compliance Code | Height | Width | Resistance | Operating Temperature | Size / Dimension | Height Seated (Max) | Subcategory | Max Power Dissipation | Composition | Feature | Tolerance | Construction | Temperature Coefficient | Resistor Type | Rated Power Dissipation (P) | Working Voltage | Size Code | Lead Diameter | Lead Spacing | Failure Rate | Supplier Device Package | Power (Watts) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
Y00891K54000TR23R | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Strip | RNC90Y | Active | Not Applicable | 2 | Radial | 1.54kOhms | -55°C~175°C | 0.300Lx0.105W 7.62mmx2.67mm | 0.336 8.53mm | Metal Foil | Non-Inductive | ±0.01% | R (0.01%) | 0.6W | ||||||||||||||||||||||||
![]() |
Y0020150R000B0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | VSR | Active | Not Applicable | 2 | EAR99 | Non-RoHS Compliant | Radial | unknown | 10.4902mm | 150Ohm | -55°C~125°C | 0.575Lx0.160W 14.61mmx4.06mm | 0.413 10.49mm | Fixed Resistors | 400mW | Metal Foil | Non-Inductive | ±0.1% | ±8ppm/°C | FIXED RESISTOR | 0.5W 1/2W | |||||||||||||||||
![]() |
Y00754K12000T0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | VSR | Active | Not Applicable | 2 | EAR99 | Non-RoHS Compliant | Radial | unknown | 8.5344mm | 4.12kOhm | -55°C~125°C | 0.300Lx0.105W 7.62mmx2.67mm | 0.336 8.53mm | Fixed Resistors | 200mW | Metal Foil | Non-Inductive | ±0.01% | ±8ppm/°C | FIXED RESISTOR | 0.3W | |||||||||||||||||
![]() |
Y001510K0000T19L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | 9 Weeks | Bulk | VMTB60 | Active | Not Applicable | 2 | 150°C | -55°C | 9.525mm | ROHS3 Compliant | Axial | 10kOhms | -55°C~125°C | 0.160Diax0.375L 4.06mmx9.53mm | 125mW | Metal Foil | Non-Inductive | ±0.01% | ±8ppm/°C | Axial | 0.25W 1/4W | ||||||||||||||||||
![]() |
Y00078K00000B9L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | 2003 | S | Active | Not Applicable | 2 | 125°C | -55°C | 7.62mm | ROHS3 Compliant | Radial | 8.5344mm | 2.667mm | 8kOhms | -55°C~125°C | 0.300Lx0.105W 7.62mmx2.67mm | 0.336 8.53mm | 600mW | Metal Foil | Moisture Resistant, Non-Inductive | ±0.1% | ±2ppm/°C | 0.6W | ||||||||||||||||
![]() |
Y0062390R500V9L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | 2003 | S | Active | Not Applicable | 2 | 175°C | -55°C | 7.62mm | ROHS3 Compliant | Radial | 8.5344mm | 2.667mm | 390.5Ohms | -55°C~125°C | 0.300Lx0.105W 7.62mmx2.67mm | 0.336 8.53mm | 300mW | Metal Foil | Moisture Resistant, Non-Inductive | ±0.005% | ±1ppm/°C | 0.6W | ||||||||||||||||
![]() |
Y0007988R000D0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | S | Active | Not Applicable | 2 | Radial | 988Ohms | -55°C~125°C | 0.300Lx0.105W 7.62mmx2.67mm | 0.336 8.53mm | Metal Foil | Moisture Resistant, Non-Inductive | ±0.5% | ±2ppm/°C | 0.6W | ||||||||||||||||||||||||
![]() |
Y0789111R110T0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | 2010 | VSR | Active | Not Applicable | 2 | 175°C | -55°C | 7.62mm | Non-RoHS Compliant | Radial | 8.5344mm | 2.667mm | 111.11Ohms | -55°C~125°C | 0.300Lx0.105W 7.62mmx2.67mm | 0.336 8.53mm | 200mW | Metal Foil | Non-Inductive | ±0.01% | ±8ppm/°C | 0.3W | ||||||||||||||||
![]() |
Y010446R0000T0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | H | Active | Not Applicable | 2 | 125°C | -55°C | 25.4mm | ROHS3 Compliant | Axial | 46Ohms | -55°C~125°C | 0.500Diax1.000L 12.70mmx25.40mm | 1W | Metal Foil | Non-Inductive | ±0.01% | ±2ppm/°C | 1W | ||||||||||||||||||||
![]() |
Y144229K5210T0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | RS92N | Active | Not Applicable | 2 | 125°C | -55°C | 7.493mm | ROHS3 Compliant | Radial | 8.001mm | 2.4892mm | 29.521kOhms | -55°C~125°C | 0.295Lx0.098W 7.50mmx2.50mm | 0.315 8.00mm | 500mW | Metal Foil | Non-Inductive | ±0.01% | ±2ppm/°C | 0.5W 1/2W | |||||||||||||||||
![]() |
Y407830K0000V9L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | VHP101 | Active | Not Applicable | 2 | 125°C | -55°C | 10.541mm | ROHS3 Compliant | Radial | 11.43mm | 4.1148mm | 30kOhms | -55°C~125°C | 0.415Lx0.162W 10.54mmx4.11mm | 0.450 11.43mm | 300mW | Metal Foil | Moisture Resistant, Non-Inductive | ±0.005% | 0.0ppm/°C | 0.3W | |||||||||||||||||
![]() |
Y507770K0000T9L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | VHZ | Active | Not Applicable | 2 | 125°C | -55°C | 11.049mm | ROHS3 Compliant | Radial | 10.922mm | 4.699mm | 70kOhms | -55°C~125°C | 0.435Lx0.185W 11.05mmx4.70mm | 0.430 10.92mm | 600mW | Metal Foil | Moisture Resistant, Non-Inductive | ±0.01% | ±0.2ppm/°C | 0.6W | |||||||||||||||||
![]() |
Y1453325R000V0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | Z | Active | Not Applicable | 2 | 175°C | -55°C | 7.62mm | Non-RoHS Compliant | Radial | 8.5344mm | 2.667mm | 325Ohms | -55°C~125°C | 0.300Lx0.105W 7.62mmx2.67mm | 0.336 8.53mm | 300mW | Metal Foil | Moisture Resistant, Non-Inductive | ±0.005% | ±0.2ppm/°C | 0.6W | |||||||||||||||||
![]() |
Y145326R0000T0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | Z | Active | Not Applicable | 2 | 125°C | -55°C | 7.62mm | Non-RoHS Compliant | Radial | 8.5344mm | 2.667mm | 26Ohms | -55°C~125°C | 0.300Lx0.105W 7.62mmx2.67mm | 0.336 8.53mm | 600mW | Metal Foil | Moisture Resistant, Non-Inductive | ±0.01% | ±0.2ppm/°C | 0.6W | |||||||||||||||||
![]() |
Y5078166R500V0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | VHP102 | Active | Not Applicable | 2 | 150°C | -55°C | 10.541mm | Non-RoHS Compliant | Radial | 11.43mm | 4.1148mm | 166.5Ohms | -55°C~125°C | 0.415Lx0.162W 10.54mmx4.11mm | 0.450 11.43mm | 300mW | Metal Foil | Moisture Resistant, Non-Inductive | ±0.005% | 0.0ppm/°C | 0.3W | |||||||||||||||||
![]() |
Y078532K0000B9L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | S | Active | Not Applicable | 2 | 175°C | -55°C | 7.62mm | ROHS3 Compliant | Radial | 8.5344mm | 2.667mm | 32kOhms | -55°C~125°C | 0.300Lx0.105W 7.62mmx2.67mm | 0.336 8.53mm | 300mW | Metal Foil | Moisture Resistant, Non-Inductive | ±0.1% | ±2ppm/°C | 0.6W | |||||||||||||||||
![]() |
Y079320K0000F0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | 2003 | RCK | no | Active | Not Applicable | 2 | Non-RoHS Compliant | Radial | 8.5344mm | 20kOhm | -55°C~125°C | 0.300Lx0.098W 7.62mmx2.50mm | 0.336 8.53mm | FIXED RESISTOR | 300mW | Metal Foil | Moisture Resistant, Non-Inductive | ±1% | Rectangular | ±2ppm/°C | FIXED RESISTOR | 0.6W | 300V | 3010 | 0.645 mm | 5.08mm | 0.6W | |||||||||||
![]() |
Y000764K3000B0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | S | Active | Not Applicable | 2 | Radial | 64.3kOhms | -55°C~125°C | 0.300Lx0.105W 7.62mmx2.67mm | 0.336 8.53mm | Metal Foil | Moisture Resistant, Non-Inductive | ±0.1% | ±2ppm/°C | 0.6W | ||||||||||||||||||||||||
![]() |
Y1690200R000T9L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | 2010 | VPR221Z | Active | Not Applicable | 4 | EAR99 | ROHS3 Compliant | TO-220-4 | unknown | 21.463mm | 200Ohm | -55°C~150°C | 0.400Lx0.150W 10.16mmx3.81mm | 0.845 21.46mm | Fixed Resistors | 8W | Metal Foil | Moisture Resistant, Non-Inductive | ±0.01% | ±0.2ppm/°C | FIXED RESISTOR | |||||||||||||||||
![]() |
Y0021165K000B9L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | VSR | Active | Not Applicable | 2 | EAR99 | ROHS3 Compliant | Radial | unknown | 10.4902mm | 165kOhm | -55°C~125°C | 0.820Lx0.160W 20.83mmx4.06mm | 0.413 10.49mm | Fixed Resistors | 600mW | Metal Foil | Non-Inductive | ±0.1% | ±8ppm/°C | FIXED RESISTOR | 0.75W 3/4W | |||||||||||||||||
![]() |
Y07063K30000F9L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | VAR | yes | Active | Not Applicable | 2 | ROHS3 Compliant | Radial | 7.874mm | 3.3kOhm | -55°C~125°C | 0.250Lx0.080W 6.35mmx2.03mm | 0.310 7.87mm | FIXED RESISTOR | 400mW | Metal Foil | Non-Inductive | ±1% | Rectangular | ±0.2ppm/°C | FIXED RESISTOR | 0.4W | 3.81mm | 0.4W | |||||||||||||||
![]() |
Y070610K0000F0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | VAR | Active | Not Applicable | 2 | 175°C | -55°C | 6.35mm | Non-RoHS Compliant | Radial | 7.874mm | 2.032mm | 10kOhms | -55°C~125°C | 0.250Lx0.080W 6.35mmx2.03mm | 0.310 7.87mm | 400mW | Metal Foil | Non-Inductive | ±1% | ±0.2ppm/°C | 0.4W | |||||||||||||||||
![]() |
Y150614K0000TR23R | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Tape & Reel (TR) | RNC90S | Active | Not Applicable | 2 | 125°C | -55°C | 7.62mm | Non-RoHS Compliant | Radial | 8.5344mm | 2.667mm | 14kOhms | -55°C~125°C | 0.300Lx0.105W 7.62mmx2.67mm | 0.336 8.53mm | 600mW | Metal Foil | Moisture Resistant, Non-Inductive | ±0.01% | ±2ppm/°C | 0.6W | |||||||||||||||||
![]() |
MAX24K000D | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | 14 Weeks | Bulk | MA | Active | Not Applicable | 2 | Radial | 24kOhms | -65°C~175°C | 0.311Lx0.110W 7.90mmx2.80mm | 0.335 8.50mm | Metal Foil | ±0.5% | ±5ppm/°C | Radial Lead | 0.3W | |||||||||||||||||||||||
![]() |
Y079318K6600T9L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | RCK | Active | Not Applicable | 2 | 125°C | -55°C | 7.62mm | ROHS3 Compliant | Radial | 8.5344mm | 2.4892mm | 18.66kOhms | -55°C~125°C | 0.300Lx0.098W 7.62mmx2.50mm | 0.336 8.53mm | 600mW | Metal Foil | Moisture Resistant, Non-Inductive | ±0.01% | ±2ppm/°C | 0.6W | |||||||||||||||||
![]() |
Y0024100K000B0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | H | Active | Not Applicable | 2 | EAR99 | ROHS3 Compliant | Radial | unknown | 11.43mm | 100kOhm | -55°C~125°C | 0.415Lx0.162W 10.54mmx4.11mm | 0.450 11.43mm | Fixed Resistors | 300mW | Metal Foil | Non-Inductive | ±0.1% | ±2ppm/°C | FIXED RESISTOR | 0.3W | |||||||||||||||||
![]() |
Y5787100R000F0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | VH | Active | Not Applicable | 2 | 125°C | -55°C | 11.049mm | ROHS3 Compliant | Radial | 10.922mm | 4.699mm | 100Ohms | -55°C~125°C | 0.435Lx0.185W 11.05mmx4.70mm | 0.430 10.92mm | 600mW | Metal Foil | Moisture Resistant, Non-Inductive | ±1% | ±1ppm/°C | 0.6W | |||||||||||||||||
![]() |
Y007795K2380T0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Bulk | VH | Active | Not Applicable | 2 | 150°C | -55°C | 11.049mm | Non-RoHS Compliant | Radial | 10.922mm | 4.699mm | 95.238kOhms | -55°C~125°C | 0.435Lx0.185W 11.05mmx4.70mm | 0.430 10.92mm | 300mW | Metal Foil | Moisture Resistant, Non-Inductive | ±0.01% | ±2ppm/°C | 0.6W | |||||||||||||||||
![]() |
Y008945K3000BR23R | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | Strip | RNC90Y | Active | Not Applicable | 2 | Radial | 45.3kOhms | -55°C~175°C | 0.300Lx0.105W 7.62mmx2.67mm | 0.336 8.53mm | Metal Foil | Non-Inductive | ±0.1% | R (0.01%) | 0.6W | ||||||||||||||||||||||||
![]() |
Y007750R0000D0L | Vishay Foil Resistors (Division of Vishay Precision Group) | 0.0000 |
Min: 1 Mult: 1 |
0.00000000 | 20 Weeks | Bulk | 2015 | VH | Active | Not Applicable | 2 | 150°C | -55°C | 11.049mm | Non-RoHS Compliant | Radial | 10.922mm | 4.699mm | 50Ohms | -55°C~125°C | 0.435Lx0.185W 11.05mmx4.70mm | 0.430 10.92mm | 300mW | Metal Foil | Moisture Resistant, Non-Inductive | ±0.5% | ±2ppm/°C | 0.6W |
-
Y00891K54000TR23R Vishay Foil Resistors (Division of Vishay Precision Group)
Y00891K54000TR23R datasheet pdf and Through Hole Resistors product details from Vishay Foil Resistors (Division of Vishay Precision Group) stock available at Utmel
Price: 0.0000
RFQ -
Y0020150R000B0L Vishay Foil Resistors (Division of Vishay Precision Group)
FIXED RESISTOR, 150Ohm, 0.5W 1/2W, Metal Foil,
Price: 0.0000
RFQ -
Y00754K12000T0L Vishay Foil Resistors (Division of Vishay Precision Group)
FIXED RESISTOR, 4.12kOhm, 0.3W, Metal Foil,
Price: 0.0000
RFQ -
Y001510K0000T19L Vishay Foil Resistors (Division of Vishay Precision Group)
10kOhms, 0.25W 1/4W, Metal Foil,
Price: 0.0000
RFQ -
Y00078K00000B9L Vishay Foil Resistors (Division of Vishay Precision Group)
8kOhms, 0.6W, Metal Foil,
Price: 0.0000
RFQ -
Y0062390R500V9L Vishay Foil Resistors (Division of Vishay Precision Group)
390.5Ohms, 0.6W, Metal Foil,
Price: 0.0000
RFQ -
Y0007988R000D0L Vishay Foil Resistors (Division of Vishay Precision Group)
988Ohms, 0.6W, Metal Foil,
Price: 0.0000
RFQ -
Y0789111R110T0L Vishay Foil Resistors (Division of Vishay Precision Group)
111.11Ohms, 0.3W, Metal Foil,
Price: 0.0000
RFQ -
Y010446R0000T0L Vishay Foil Resistors (Division of Vishay Precision Group)
46Ohms, 1W, Metal Foil,
Price: 0.0000
RFQ -
Y144229K5210T0L Vishay Foil Resistors (Division of Vishay Precision Group)
29.521kOhms, 0.5W 1/2W, Metal Foil,
Price: 0.0000
RFQ -
Y407830K0000V9L Vishay Foil Resistors (Division of Vishay Precision Group)
30kOhms, 0.3W, Metal Foil,
Price: 0.0000
RFQ -
Y507770K0000T9L Vishay Foil Resistors (Division of Vishay Precision Group)
70kOhms, 0.6W, Metal Foil,
Price: 0.0000
RFQ -
Y1453325R000V0L Vishay Foil Resistors (Division of Vishay Precision Group)
325Ohms, 0.6W, Metal Foil,
Price: 0.0000
RFQ -
Y145326R0000T0L Vishay Foil Resistors (Division of Vishay Precision Group)
26Ohms, 0.6W, Metal Foil,
Price: 0.0000
RFQ -
Y5078166R500V0L Vishay Foil Resistors (Division of Vishay Precision Group)
166.5Ohms, 0.3W, Metal Foil,
Price: 0.0000
RFQ -
Y078532K0000B9L Vishay Foil Resistors (Division of Vishay Precision Group)
32kOhms, 0.6W, Metal Foil,
Price: 0.0000
RFQ -
Y079320K0000F0L Vishay Foil Resistors (Division of Vishay Precision Group)
FIXED RESISTOR, 20kOhm, 0.6W, Metal Foil,
Price: 0.0000
RFQ -
Y000764K3000B0L Vishay Foil Resistors (Division of Vishay Precision Group)
Y000764K3000B0L datasheet pdf and Through Hole Resistors product details from Vishay Foil Resistors (Division of Vishay Precision Group) stock available at Utmel
Price: 0.0000
RFQ -
Y1690200R000T9L Vishay Foil Resistors (Division of Vishay Precision Group)
FIXED RESISTOR, 200Ohm, Metal Foil,
Price: 0.0000
RFQ -
Y0021165K000B9L Vishay Foil Resistors (Division of Vishay Precision Group)
FIXED RESISTOR, 165kOhm, 0.75W 3/4W, Metal Foil,
Price: 0.0000
RFQ -
Y07063K30000F9L Vishay Foil Resistors (Division of Vishay Precision Group)
FIXED RESISTOR, 3.3kOhm, 0.4W, Metal Foil,
Price: 0.0000
RFQ -
Y070610K0000F0L Vishay Foil Resistors (Division of Vishay Precision Group)
Y070610K0000F0L datasheet pdf and Through Hole Resistors product details from Vishay Foil Resistors (Division of Vishay Precision Group) stock available at Utmel
Price: 0.0000
RFQ -
Y150614K0000TR23R Vishay Foil Resistors (Division of Vishay Precision Group)
14kOhms, 0.6W, Metal Foil,
Price: 0.0000
RFQ -
MAX24K000D Vishay Foil Resistors (Division of Vishay Precision Group)
24kOhms, 0.3W, Metal Foil,
Price: 0.0000
RFQ -
Y079318K6600T9L Vishay Foil Resistors (Division of Vishay Precision Group)
18.66kOhms, 0.6W, Metal Foil,
Price: 0.0000
RFQ -
Y0024100K000B0L Vishay Foil Resistors (Division of Vishay Precision Group)
FIXED RESISTOR, 100kOhm, 0.3W, Metal Foil,
Price: 0.0000
RFQ -
Y5787100R000F0L Vishay Foil Resistors (Division of Vishay Precision Group)
100Ohms, 0.6W, Metal Foil,
Price: 0.0000
RFQ -
Y007795K2380T0L Vishay Foil Resistors (Division of Vishay Precision Group)
95.238kOhms, 0.6W, Metal Foil,
Price: 0.0000
RFQ -
Y008945K3000BR23R Vishay Foil Resistors (Division of Vishay Precision Group)
45.3kOhms, 0.6W, Metal Foil,
Price: 0.0000
RFQ -
Y007750R0000D0L Vishay Foil Resistors (Division of Vishay Precision Group)
50Ohms, 0.6W, Metal Foil,
Price: 0.0000
RFQ