MS-156HF
Hirose Electric Co Ltd
CONN COAX SWITCH RCPT STR 50OHM
I lager102670 pcs
Beryllium Copper
1
Coaxial Switch - 4mm Plug Dia
-
Phosphor Bronze
Gold
Gold
Solder
Gold
-
100
MS-156
Tape & Reel (TR)
-
MS-156HF
-40°C ~ 85°C
Surface Mount
50Ohm
Internal Switch
Receptacle, Female Socket
6 GHz
0.15dB
Solder
Snap-On
-
-
Polyamide (PA), Nylon 6T
RFQ
MM5831-2700RJ4
Murata Electronics
MICROWAVE COAXIAL CONNECTOR RECE
I lager294420 pcs
-
1
JSC
-
-
-
Gold
Solder
-
-
30
MM5831
Tape & Reel (TR)
-
5831
-40°C ~ 85°C
Surface Mount
50Ohm
-
Receptacle, Female Socket
6 GHz
1.5dB
Solder
Push-Pull
30 V
-
-
RFQ
5414459-1
TE Connectivity AMP Connectors
CONN BNC JACK R/A 75 OHM PCB
I lager4258 pcs
Beryllium Copper
1
BNC
Bulkhead - Front Side Nut
Zinc
Nickel
Natural, Silver
Solder
Gold
-
500
5414459
Bulk
-
-
-55°C ~ 85°C
Panel Mount, Through Hole, Right Angle
75Ohm
Board Guide, Isolated
Jack, Female Socket
2 GHz
-
Solder
Bayonet Lock
500 V
-
Polymethylpentene (PMP)
RFQ
U.FL-R-SMT(01)
Hirose Electric Co Ltd
CONN U.FL RCPT STR 50 OHM SMD
I lager47010 pcs
Brass
1
U.FL (UMCC)
-
Phosphor Bronze
Silver
Beige
Solder
Gold
-
30
U.FL
Bulk
-
U.FL
-40°C ~ 90°C
Surface Mount
50Ohm
-
Receptacle, Male Pin
6 GHz
-
Solder
Snap-On
-
-
Liquid Crystal Polymer (LCP)
RFQ
R110427830
Radiall USA, Inc.
MMCX / STRAIGHT JACK RECEPTACLE
I lager6981 pcs
Beryllium Copper
1
MMCX
-
Brass
Gold
Gold
Solder
Gold
-
500
R11042
Tape & Reel (TR)
-
-
-55°C ~ 155°C
Surface Mount
50Ohm
-
Receptacle, Female Socket
6 GHz
-
Solder
Snap-On
250 V
-
Polytetrafluoroethylene (PTFE)
RFQ
MMCX-J-P-H-RA-TH1
Samtec Inc.
CONN MMCX JACK R/A 50 OHM PCB
I lager12994 pcs
Beryllium Copper
1
MMCX
-
Brass
Gold
Gold
Solder
Gold
-
-
MMCX-J
Tray
-
-
-65°C ~ 125°C
Through Hole, Right Angle
50Ohm
-
Jack, Female Socket
6 GHz
-
Solder
Snap-On
500 V
-
Polytetrafluoroethylene (PTFE)
RFQ
132134RP
Amphenol RF
CONN RP-SMA JACK STR 50 OHM PCB
I lager14401 pcs
Brass
1
RP-SMA
-
Brass
Gold
Gold
Solder
Gold
-
500
132134
Bulk
-
-
-65°C ~ 165°C
Through Hole
50Ohm
-
Jack, Male Pin
-
-
Solder
Threaded
375 V
-
Polytetrafluoroethylene (PTFE)
RFQ
119S147-40ML5
Rosenberger
CONN PSMP PLUG STR 50OHM SMD
I lager7261 pcs
Brass
1
PSMP
-
Brass
Gold
Gold
Solder
Gold
-
1000
119S147
-
-
-
-65°C ~ 165°C
Surface Mount
50Ohm
Smooth Bore
Plug, Male Pin
10 GHz
-
Solder
Snap-On
480 V
-
Polyetheretherketone (PEEK)
RFQ
901-143-6RFX
Amphenol RF
CONN SMA JACK R/A 50 OHM PCB
I lager7068 pcs
Beryllium Copper
1
SMA
-
Brass
Gold
Gold
Solder
Gold
-
500
901-14
Bulk
-
-
-65°C ~ 165°C
Through Hole, Right Angle
50Ohm
-
Jack, Female Socket
18 GHz
-
Solder
Threaded
-
-
Polytetrafluoroethylene (PTFE)
RFQ
D4S20L-40MA5-A
Rosenberger
CONN HSD FAKRA PLUG R/A 100OHM
I lager6137 pcs
Bronze
1
HSD®, Fakra, Quadraxial
-
Brass
Nickel
Black
Solder
Gold
-
25
D4S20L
Tape & Reel (TR)
-
HSD®
-40°C ~ 105°C
Through Hole, Right Angle
100Ohm
Code A
Plug, Male Pin
2 GHz
0.10dB
Solder
Latch Lock
100 V
-
Liquid Crystal Polymer (LCP)
RFQ
BJ77HS
Cinch Connectivity Solutions Trompeter
CONN TRB JACK STR SOLDER
I lager163 pcs
Beryllium Copper
1
TRB, Twinaxial/Triaxial
Bulkhead - Rear Side Nut
Stainless Steel
-
Silver
Solder Tag
Gold
-
500
BJ77
Bulk
3 pcs - 1 Connector, 1 Nut, 1 Washer
70
-65°C ~ 165°C
Panel Mount
Non-Constant
Hermetically Sealed, Three Lug
Jack, Female Socket (Concentric)
500 MHz
-
Solder
Bayonet Lock
400 V
-
-
RFQ
N.FL-R-SMT-1(80)
Hirose Electric Co Ltd
CONN N.FL RCPT STR 50 OHM SMD
I lager46960 pcs
Brass
1
U.FL (UMCC)
-
Phosphor Bronze
Silver
Black
Solder
Gold
-
20
N.FL
Tape & Reel (TR)
-
N.FL
-40°C ~ 90°C
Surface Mount
50Ohm
-
Receptacle, Male Pin
6 GHz
-
Solder
Snap-On
-
-
Liquid Crystal Polymer (LCP)
RFQ
5-1814832-2
TE Connectivity AMP Connectors
SMA STR PCB SKT GZD
I lager10534 pcs
Beryllium Copper
1
SMA
-
Zinc Alloy
Gold
Gold
Solder
Gold
-
500
1814832
Tape & Reel (TR)
-
ZDC, Greenpar
-65°C ~ 165°C
Through Hole
50Ohm
-
Jack, Female Socket
6 GHz
-
Solder
Threaded
335 V
-
Polytetrafluoroethylene (PTFE)
RFQ
5227161-9
TE Connectivity AMP Connectors
CONN BNC JACK R/A 50 OHM PCB
I lager13661 pcs
Phosphor Bronze
1
BNC
Bulkhead - Front Side Nut
Zinc
Nickel
Black, Silver
Solder
Gold
-
500
5227161
Tube
-
-
-55°C ~ 85°C
Panel Mount, Through Hole, Right Angle
50Ohm
Board Guide, Isolated
Jack, Female Socket
4 GHz
-
Solder
Bayonet Lock
500 V
-
Polymethylpentene (PMP)
RFQ
U.FL-R-SMT-1(10)
Hirose Electric Co Ltd
CONN U.FL RCPT STR 50 OHM SMD
I lager51840 pcs
Brass
1
U.FL (UMCC)
-
Phosphor Bronze
Silver
Beige
Solder
Gold
-
30
U.FL
Tape & Reel (TR)
-
U.FL
-40°C ~ 90°C
Surface Mount
50Ohm
-
Receptacle, Male Pin
6 GHz
-
Solder
Snap-On
-
-
Liquid Crystal Polymer (LCP)
RFQ
PL75-47
Cinch Connectivity Solutions Trompeter
CONN TRB PLUG STR SOLDER
I lager1790 pcs
Beryllium Copper
1
TRB, Twinaxial/Triaxial
-
Brass
Nickel
Silver
Wrench Clamp
Gold
-
500
PL75
Bulk
-
70
-65°C ~ 165°C
Free Hanging (In-Line)
Non-Constant
Three Lug
Plug, Male Pin (Concentric)
500 MHz
-
Solder
Bayonet Lock
400 V
M17/176-00002
-
RFQ
142-0408-101
Cinch Connectivity Solutions Johnson
CONN SMA PLUG R/A 50 OHM SOLDER
I lager4695 pcs
Brass
1
SMA
-
Brass
Gold
Gold
Crimp
Gold
-
500
142-0408
Bulk
3 pcs - 1 Connector, 1 End Cap, 1 Sleeve
-
-65°C ~ 165°C
Free Hanging (In-Line), Right Angle
50Ohm
-
Plug, Male Pin
12.4 GHz
-
Solder
Threaded
335 V
RG-55, 142, 223, 400
Polytetrafluoroethylene (PTFE)
RFQ
142138
Amphenol RF
CONN SMB JACK STR 50 OHM PCB
I lager18377 pcs
Brass
1
SMB
-
Brass
Gold
Gold
Solder
Gold
-
500
1421
Bag
-
-
-65°C ~ 165°C
Through Hole
50Ohm
-
Jack, Male Pin
4 GHz
0.3dB
Solder
Snap-On
335 V
-
Polytetrafluoroethylene (PTFE)
RFQ
222144
Amphenol RF
CONN F RCPT STR 75 OHM SOLDER
I lager33390 pcs
Brass
1
F Type
Bulkhead - Rear Side Nut
Brass
Nickel
Silver
Solder
Tin
-
500
2221
Bag
2 pcs - 1 Connector, 1 Gasket
-
-
Panel Mount
75Ohm
-
Receptacle, Female Socket
2 GHz
-
Solder
Threaded
-
-
Polyoxymethylene (POM) Acetal, Polypropylene (PP)
RFQ
MM8030-2600RJ3
Murata Electronics
CONN SWG RCPT STR 50 OHM SMD
I lager5390 pcs
-
1
SWG
-
-
-
Gold
Solder
-
-
100
MM8030
Tape & Reel (TR)
-
8030
-40°C ~ 85°C
Surface Mount
50Ohm
Internal Switch
Receptacle, Female Socket
11 GHz
0.5dB
Solder
Snap-On
250 V
-
-
RFQ
221789-1
TE Connectivity AMP Connectors
CONN SMA JACK STR 50 OHM PCB
I lager5310 pcs
Beryllium Copper
1
SMA
-
Brass
Gold
Gold
Solder
Gold
-
500
221789
Bulk
-
-
-65°C ~ 165°C
Through Hole
50Ohm
-
Jack, Female Socket
4 GHz
0.3dB
Solder
Threaded
335 V
-
Polytetrafluoroethylene (PTFE)
RFQ
221790-1
TE Connectivity AMP Connectors
CONN SMA JACK R/A 50 OHM PCB
I lager2458 pcs
Beryllium Copper
1
SMA
-
Stainless Steel
Gold
Gold
Solder
Gold
-
500
221790
Bulk
-
-
-65°C ~ 165°C
Through Hole, Right Angle
50Ohm
-
Jack, Female Socket
4 GHz
0.3dB
Solder
Threaded
335 V
-
Polytetrafluoroethylene (PTFE)
RFQ
R125069000
Radiall USA, Inc.
SMA / STRAIGHT PLUG CRIMP OR SOL
I lager1303 pcs
Brass
1
SMA
-
Stainless Steel
Gold
Gold
Clamp
Gold
-
500
R12506
Box
-
-
-65°C ~ 165°C
Free Hanging (In-Line)
50Ohm
-
Plug, Male Pin
12.4 GHz
-
Crimp or Solder
Threaded
250 V
RG-178, 196
Polytetrafluoroethylene (PTFE)
RFQ
DK-621-0439-4S
TE Connectivity Aerospace, Defense and Marine
CONN TRIAX PLUG STR SOLDER
I lager160 pcs
-
1
Triaxial
-
-
-
-
Solder
-
-
500
DK-621
Bulk
-
-
-65°C ~ 125°C
Free Hanging (In-Line)
-
-
Plug, Female Socket
-
-
Solder
Bayonet Lock
-
-
-
RFQ
DK-621-0411-S
TE Connectivity Aerospace, Defense and Marine
CONN TRIAX PLUG STR SOLDER
I lager225 pcs
-
1
Triaxial
-
-
-
-
Solder
-
-
500
DK-621
Bulk
-
-
-65°C ~ 125°C
Free Hanging (In-Line)
-
-
Plug, Female Socket
-
-
Solder
Threaded
-
-
-
RFQ
MM9329-2700RB5
Murata Electronics
CONN GSC JACK STR 50 OHM SMD
I lager3660 pcs
Copper Alloy
1
GSC
-
Copper Alloy
Silver
Silver
Solder
Gold
-
-
MM9329
Cut Tape (CT)
-
9329
-40°C ~ 90°C
Surface Mount
50Ohm
-
Receptacle, Female Socket
6 GHz
-
Solder
Snap-On
-
-
-
RFQ
112604RP
Amphenol RF
CONN RP-BNC JACK STR 50OHM CRIMP
I lager4780 pcs
Brass
1
RP-BNC
Bulkhead - Front Side Nut
Brass
Nickel
Silver
Crimp
Gold
-
500
112604
Bulk
6 pcs - 1 Connector, 1 Contact, 1 Ferrule, 1 Gasket, 1 Lockwasher, 1 Nut
-
-65°C ~ 165°C
Panel Mount
50Ohm
-
Jack, Male Pin
4 GHz
0.2dB
Crimp
Bayonet Lock
500 V
Belden 8214, 9913, 9914, LMR-400
Polytetrafluoroethylene (PTFE)
RFQ
W.FL-R-SMT-1(10)
Hirose Electric Co Ltd
CONN UMC RCPT STR 50 OHM SMD
I lager56280 pcs
Brass
1
W.FL
-
Phosphor Bronze
Silver
Black
Solder
Gold
-
20
W.FL
Tape & Reel (TR)
-
W.FL
-40°C ~ 90°C
Surface Mount
50Ohm
-
Receptacle, Male Pin
6 GHz
-
Solder
Snap-On
-
-
Liquid Crystal Polymer (LCP)
RFQ
2337019-1
TE Connectivity AMP Connectors
UMCC MICRO-COAX RECEPTACLE, GEN
I lager342520 pcs
Copper Alloy
1
U.FL (UMCC)
-
Copper Alloy
-
-
Solder
Gold
-
-
2337019
Tape & Reel (TR)
-
-
-40°C ~ 85°C
Surface Mount
50Ohm
-
Receptacle, Male Pin
6 GHz
-
Solder
-
-
-
Thermoplastic
RFQ
DK-621-0412-P
TE Connectivity Aerospace, Defense and Marine
CONN TRIAX JACK STR SOLDER
I lager321 pcs
-
1
Triaxial
Bulkhead - Front Side Nut
-
-
-
Solder
-
-
500
DK-621
Bulk
-
-
-65°C ~ 125°C
Panel Mount
-
-
Jack, Male Pin
-
-
Solder
Threaded
-
-
-
RFQ
142184
Amphenol RF
CONN SMB JACK R/A 50 OHM PCB
I lager9282 pcs
Brass
1
SMB
Bulkhead - Front Side Nut
Brass
Gold
Gold
Solder
Gold
-
500
1421
Bag
3 pcs - 1 Connector, 1 Lockwasher, 1 Nut
-
-65°C ~ 165°C
Panel Mount, Through Hole, Right Angle
50Ohm
-
Jack, Male Pin
4 GHz
0.6dB
Solder
Snap-On
335 V
-
Polytetrafluoroethylene (PTFE)
RFQ
142-0761-891
Cinch Connectivity Solutions Johnson
CONN SMA JACK STR 50OHM EDGE MNT
I lager4220 pcs
Beryllium Copper
1
SMA
-
Brass
Gold
Gold
Solder
Gold
-
500
142-0761
Bulk
-
-
-65°C ~ 165°C
Board Edge, End Launch
50Ohm
-
Jack, Female Socket
26.5 GHz
-
Solder
Threaded
170 V
-
Polytetrafluoroethylene (PTFE)
RFQ
131-3701-201
Cinch Connectivity Solutions Johnson
CONN SMB JACK STR 50 OHM PCB
I lager7823 pcs
Brass
1
SMB
-
Brass
Gold
Gold
Solder
Gold
-
500
131-3701
Bulk
-
-
-65°C ~ 165°C
Through Hole
50Ohm
-
Jack, Male Pin
4 GHz
-
Solder
Snap-On
335 V
-
Polytetrafluoroethylene (PTFE)
RFQ
5227699-3
TE Connectivity AMP Connectors
CONN BNC JACK STR 50 OHM PCB
I lager10381 pcs
Phosphor Bronze
1
BNC
-
Zinc
Nickel
Silver
Solder
Tin
-
500
5227699
Tube
-
-
-55°C ~ 85°C
Through Hole
50Ohm
-
Jack, Female Socket
4 GHz
-
Solder
Bayonet Lock
500 V
-
Polybutylene Terephthalate (PBT), Polyester
RFQ
119S144-40ML5
Rosenberger
CONN PSMP PLUG STR 50OHM SMD
I lager10151 pcs
Brass
1
PSMP
-
Brass
Gold
Gold
Solder
Gold
-
1000
119S144
-
-
-
-65°C ~ 165°C
Surface Mount
50Ohm
Smooth Bore
Plug, Male Pin
10 GHz
-
Solder
Snap-On
480 V
-
Polyetheretherketone (PEEK)
RFQ
142-0701-871
Cinch Connectivity Solutions Johnson
CONN SMA JACK STR 50OHM EDGE MNT
I lager6365 pcs
Beryllium Copper
1
SMA
Bulkhead - Front Side Nut
Brass
Gold
Gold
Solder
Gold
-
500
142-0701
Bulk
3 pcs - 1 Connector, 1 Lockwasher, 1 Nut
-
-65°C ~ 165°C
Board Edge, End Launch; Panel Mount
50Ohm
-
Jack, Female Socket
18 GHz
-
Solder
Threaded
335 V
-
Polytetrafluoroethylene (PTFE)
RFQ
5414338-1
TE Connectivity AMP Connectors
CONN SMB PLUG R/A 50 OHM PCB
I lager5096 pcs
Brass
1
SMB
-
Zinc Alloy
Nickel
Silver
Solder
Gold
-
500
5414338
Bulk
-
-
-65°C ~ 165°C
Through Hole, Right Angle
50Ohm
-
Plug, Female Socket
3 GHz
0.6dB
Solder
Snap-On
335 V
-
Polytetrafluoroethylene (PTFE)
RFQ
MMCX-R-PC(40)
Hirose Electric Co Ltd
CONN MMCX RCPT STR 50 OHM PCB
I lager26395 pcs
Beryllium Copper
1
MMCX
-
Brass
Gold
Gold
Solder
Gold
-
500
MMCX
Bulk
-
-
-55°C ~ 85°C
Through Hole
50Ohm
-
Receptacle, Female Socket
6 GHz
-
Solder
Snap-On
-
-
Polytetrafluoroethylene (PTFE)
RFQ
MS-156C(20)
Hirose Electric Co Ltd
CONN COAX SWITCH RCPT STR 50OHM
I lager106210 pcs
Copper Alloy
1
Coaxial Switch - 4mm Plug Dia
-
Phosphor Bronze
Gold
Gold
Solder
Gold
-
100
MS-156C
Tape & Reel (TR)
-
MS-156C
-40°C ~ 85°C
Surface Mount
50Ohm
Internal Switch
Receptacle, Female Socket
11 GHz
0.4dB
Solder
Snap-On
-
-
Polyamide (PA), Nylon 6T
RFQ
PL75-47
Remington Industries
TRB PL75-47 TWINAXIAL CONNECTOR
I lager524 pcs
Beryllium Copper
1
TRB, Twinaxial/Triaxial
-
Brass
Nickel
Silver
Wrench Clamp
Gold
-
500
PL75
Bag
-
70
-65°C ~ 165°C
Free Hanging (In-Line)
Non-Constant
Three Lug
Plug, Male Pin (Concentric)
500 MHz
-
Solder
Bayonet Lock
400 V
M17/176-00002
-
RFQ
MM5829-2700RK0
Murata Electronics
CONN JSC RCPT STR 50 OHM SMD
I lager5220 pcs
-
1
JSC
-
-
-
Gold
Solder
-
-
-
MM5829
Tape & Reel (TR)
-
5829
-40°C ~ 85°C
Surface Mount
50Ohm
-
Receptacle, Male Pin
12 GHz
-
Solder
Snap-On
30 V
-
-
RFQ
5227222-3
TE Connectivity AMP Connectors
CONN BNC JACK STR 50 OHM PCB
I lager12994 pcs
Phosphor Bronze
1
BNC
Bulkhead - Front Side Nut
Zinc
Nickel
Natural, Silver
Solder
Gold
-
500
5227222
Tube
-
-
-55°C ~ 85°C
Panel Mount, Through Hole
50Ohm
Board Guide, Isolated
Jack, Female Socket
4 GHz
-
Solder
Bayonet Lock
500 V
-
Polymethylpentene (PMP)
RFQ
20566-001E-01
I-PEX
MHF 5 RECEPTACLE
I lager42360 pcs
-
1
IPEX MHF5
-
-
-
-
Solder
-
-
-
20566
Tape & Reel (TR)
-
MHF® 5L
-40°C ~ 90°C
-
-
-
Receptacle, Female Socket
-
-
Solder
Snap-On
-
-
-
RFQ
7110-1511-050
Radiall USA, Inc.
SSMC M RA BHD PCB
I lager996 pcs
Beryllium Copper
1
SSMC
Bulkhead - Front Side Nut
Brass
Gold
Gold
Solder
Gold
-
500
7110-1511
Bulk
3 pcs - 1 Connector, 1 Lockwasher, 1 Nut
-
-65°C ~ 165°C
Panel Mount, Through Hole, Right Angle
50Ohm
-
Jack, Male Pin
12.4 GHz
-
Solder
Snap-On
250 V
-
Polytetrafluoroethylene (PTFE)
RFQ
5414907-3
TE Connectivity AMP Connectors
CONN BNC JACK R/A 75 OHM PCB
I lager3969 pcs
Beryllium Copper
1
BNC
Bulkhead - Front Side Nut
Zinc
Nickel
Silver
Solder
Gold
-
500
5414907
Bulk
-
-
-55°C ~ 85°C
Panel Mount, Through Hole, Right Angle
75Ohm
-
Jack, Female Socket
2 GHz
-
Solder
Bayonet Lock
500 V
-
Polymethylpentene (PMP)
RFQ
1551372-1
TE Connectivity AMP Connectors
CONN COAX SWITCH JACK STR 50OHM
I lager5060 pcs
Copper Alloy
1
Coaxial Switch - 1.35mm Plug Dia
-
Copper Alloy
-
-
Solder
Gold
-
-
1551372
Tape & Reel (TR)
-
Pico® II
-40°C ~ 85°C
Surface Mount
50Ohm
Internal Switch
Jack, Female Socket
11 GHz
-
Solder
Snap-On
250 V
-
Liquid Crystal Polymer (LCP)
RFQ
901-144
Amphenol RF
CONN SMA RCPT STR 50 OHM PCB
I lager4296 pcs
Beryllium Copper
1
SMA
-
Stainless Steel
Gold
Gold
Solder
Gold
-
500
901-14
Bulk
-
-
-65°C ~ 165°C
Through Hole
50Ohm
-
Receptacle, Female Socket
-
-
Solder
Threaded
-
-
Polytetrafluoroethylene (PTFE)
RFQ
142-0701-831
Cinch Connectivity Solutions Johnson
CONN SMA JACK STR 50OHM EDGE MNT
I lager7959 pcs
Beryllium Copper
1
SMA
-
Brass
Gold
Gold
Solder
Gold
-
500
142-0701
Bulk
-
-
-65°C ~ 165°C
Board Edge, End Launch
50Ohm
-
Jack, Female Socket
18 GHz
-
Solder
Threaded
335 V
-
Polytetrafluoroethylene (PTFE)
RFQ
R125426000
Radiall USA, Inc.
SMA F STR PCB C100
I lager5347 pcs
Beryllium Copper
1
SMA
-
Stainless Steel
Gold
Gold
Solder
Gold
-
500
R12542
Bulk
-
-
-65°C ~ 165°C
Through Hole
50Ohm
-
Jack, Female Socket
18 GHz
-
Solder
Threaded
-
-
Polytetrafluoroethylene (PTFE)
RFQ
MM8430-2610RA1
Murata Electronics
CONN SWD RCPT STR 50 OHM SMD
I lager122720 pcs
-
1
SWD
-
-
-
Silver
Solder
-
-
-
MM8430
Tape & Reel (TR)
-
8430
-40°C ~ 85°C
Surface Mount
50Ohm
Internal Switch
Receptacle, Female Socket
6 GHz
-
Solder
Snap-On
-
-
-
RFQ