STR-W6051S
Sanken
IC OFFLINE SW FLBACK TO220F-6L
Sa stock4630 pcs
60kHz ~ 74kHz
8.1V ~ 32V
Isolated
Flyback
15.3 V
71%
Current Limiting, Over Load, Over Temperature, Over Voltage
-
Yes
-
-
-
STR-W6051
Tube
STR-W6000S
-
-20°C ~ 115°C (TA)
Through Hole
TO-220-6 Full Pack, Formed Leads
TO-220F-6L
650V
45 W
RFQ
FSCQ0765RTYDTU
onsemi
IC OFFLINE SW FLBACK TO220F-5L
Sa stock7310 pcs
20kHz
9V ~ 20V
Isolated
Flyback
15 V
95%
Current Limiting, Over Load, Over Temperature, Over Voltage
Sync
Yes
-
-
-
FSCQ0765
Tube
FSCQ
-
-25°C ~ 85°C (TA)
Through Hole
TO-220-5 Full Pack, Formed Leads
TO-220F-5L (Forming)
650V
100 W
RFQ
FSDM0365RN
onsemi
IC OFFLINE SWITCH FLYBACK 8DIP
Sa stock9170 pcs
67kHz
8V ~ 20V
Isolated
Flyback
12 V
77%
Current Limiting, Over Load, Over Temperature, Over Voltage
-
Yes
-
-
-
FSDM0365
Bag
FPS™
-
-25°C ~ 85°C (TA)
Through Hole
8-DIP (0.300', 7.62mm)
8-DIP
650V
30 W
RFQ
TOP255GN
Power Integrations
IC OFFLINE SWITCH FLYBACK 8SMD
Sa stock15520 pcs
66kHz
-
Isolated
Flyback
-
78%
Current Limiting, Over Temperature, Over Voltage
-
Yes
-
-
-
TOP255
Tube
TOPSwitch®-HX
-
-40°C ~ 150°C (TJ)
Surface Mount
8-SMD (7 Leads), Gull Wing
SMD-8C
700V
30 W
RFQ
VIPER25HD
STMicroelectronics
IC OFFLINE SWITCH FLYBACK 16SO
Sa stock44600 pcs
225kHz
8.5V ~ 23.5V
Isolated
Flyback
14 V
-
Current Limiting, Over Temperature, Over Voltage
-
Yes
-
-
-
VIPER25
Tube
VIPer™ plus
-
-40°C ~ 150°C (TJ)
Surface Mount
16-SOIC (0.154', 3.90mm Width)
16-SO
800V
20 W
RFQ
ISL8844AAUZ
Intersil
IC OFFLINE SWITCH MULT TOP 8MSOP
Sa stock7880 pcs
Up to 2MHz
8.8V ~ 30V
Non-Isolated
Boost, Flyback
14.4 V
48%
Current Limiting
Frequency Control
No
-
-
-
ISL8844
Bulk
-
-
-40°C ~ 105°C (TA)
Surface Mount
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
8-MSOP
-
-
RFQ
MC33364D2R2G
onsemi
IC OFFLINE SWITCH FLYBACK 8SOIC
Sa stock17950 pcs
126kHz
7.6V ~ 16V
Isolated
Flyback
15 V
-
Current Limiting, Over Temperature
-
No
-
-
-
MC33364
Tape & Reel (TR)
GreenLine™
-
-25°C ~ 125°C (TA)
Surface Mount
8-SOIC (0.154', 3.90mm Width)
8-SOIC
700V
-
RFQ
LNK302DG
Power Integrations
IC OFFLINE SWITCH MULT TOP 8SO
Sa stock6700 pcs
66kHz
-
Non-Isolated
Buck, Buck-Boost, Flyback
-
69%
Current Limiting, Open Loop, Over Temperature, Short Circuit
-
Yes
-
-
-
LNK302
Tube
LinkSwitch®-TN
-
-40°C ~ 150°C (TJ)
Surface Mount
8-SOIC (0.154", 3.90mm Width), 7 Leads
SO-8C
700V
-
RFQ
TOP232PN
Power Integrations
IC OFFLINE SWITCH FLYBACK 8DIP
Sa stock15180 pcs
66kHz ~ 132kHz
-
Isolated
Flyback
-
78%
Current Limiting, Over Temperature, Over Voltage
Frequency Control
Yes
-
-
-
TOP232
Tube
TOPSwitch®-FX
-
-40°C ~ 150°C (TJ)
Through Hole
8-DIP (0.300', 7.62mm), 7 Leads
8-PDIP-B
700V
15 W
RFQ
PKS607YN
Power Integrations
IC OFFLINE SW FLYBACK TO220-7C
Sa stock9890 pcs
277kHz
-
Isolated
Flyback
-
65%
Current Limiting, Over Load, Over Temperature
EN
Yes
-
-
-
PKS607
Tube
PeakSwitch®
-
-40°C ~ 150°C (TJ)
Through Hole
TO-220-7 Formed Leads, 6 Leads
TO-220-7C
700V
126 W
RFQ
LNK6448K
Power Integrations
IC OFFLINE SWITCH FLYBACK 12ESOP
Sa stock15610 pcs
Up to 85kHz
-
Isolated
Flyback
-
55%
Current Limiting, Open Loop, Over Temperature, Short Circuit
-
Yes
-
-
-
LNK6448
Tube
LinkSwitch™-3
-
-40°C ~ 150°C (TJ)
Surface Mount
12-BESOP (0.350", 8.89mm Width), 11 Leads, Exposed Pad
12-ESOP
725V
10 W
RFQ
LYT4228E
Power Integrations
IC OFFLINE SWITCH MULT TOP 7ESIP
Sa stock19712 pcs
140kHz
-
Isolated
Flyback, Step-Down (Buck), Step-Up (Boost)
-
99.9%
-
-
Yes
-
-
-
LYT4228
Tube
LYTSwitch™-4
-
-40°C ~ 150°C (TJ)
Through Hole
7-SSIP, 6 Leads, Exposed Pad, Formed Leads
eSIP-7C
725V
78 W
RFQ
ICE3B1565
Infineon Technologies
IC OFFLINE SWITCH FLYBACK 8DIP
Sa stock53870 pcs
67kHz
8.5V ~ 21V
Isolated
Flyback
-
75%
Current Limiting, Open Circuit, Over Load, Over Temperature, Over Voltage
Soft Start
Yes
-
-
-
ICE3B1565
Bulk
-
-
-25°C ~ 130°C (TJ)
Through Hole
8-DIP (0.300", 7.62mm)
PG-DIP-8
650V
-
RFQ
LNK605DG-TL
Power Integrations
IC OFFLINE SWITCH FLYBACK 8SO
Sa stock63680 pcs
Up to 85kHz
-
Isolated
Flyback
-
55%
Current Limiting, Open Loop, Over Temperature, Short Circuit
-
Yes
-
-
-
LNK605
Tape & Reel (TR)
LinkSwitch®-II
-
-40°C ~ 150°C (TJ)
Surface Mount
8-SOIC (0.154", 3.90mm Width), 7 Leads
SO-8C
700V
5.1 W
RFQ
FSQ0165RL
Fairchild Semiconductor
IC OFFLINE SWITCH FLYBACK 8LSOP
Sa stock66880 pcs
55kHz ~ 67kHz
8V ~ 20V
Isolated
Flyback
12 V
-
Current Limiting, Over Load, Over Temperature, Over Voltage
Sync
Yes
-
-
-
FSQ0165
Tube
FPS™
-
-40°C ~ 85°C (TA)
Surface Mount
8-SMD, Gull Wing
8-LSOP
650V
15 W
RFQ
TOP234P
Power Integrations
IC OFFLINE SWITCH FLYBACK 8DIP
Sa stock9500 pcs
66kHz ~ 132kHz
-
Isolated
Flyback
-
78%
Current Limiting, Over Temperature, Over Voltage
Frequency Control
Yes
-
-
-
TOP234
Tube
TOPSwitch®-FX
-
-40°C ~ 150°C (TJ)
Through Hole
8-DIP (0.300', 7.62mm), 7 Leads
8-PDIP-B
700V
30 W
RFQ
AP3105KTR-G1
Diodes Incorporated
IC OFFLINE SW FLYBACK SOT23-6
Sa stock4300 pcs
65kHz
10V ~ 25V
Isolated
Flyback
15.5 V
75%
Current Limiting, Over Load, Over Temperature, Over Voltage
-
No
-
-
-
AP3105
Tape & Reel (TR)
-
-
-40°C ~ 150°C (TJ)
Surface Mount
SOT-23-6
SOT-23-6
-
-
RFQ
LNK6664V
Power Integrations
IC OFFLINE SWITCH FLYBACK 12EDIP
Sa stock56730 pcs
120kHz ~ 136kHz
-
Isolated
Flyback
-
64%
Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit
-
Yes
-
-
-
LNK6664
Tube
LinkSwitch™-HP
-
-40°C ~ 150°C (TJ)
Through Hole
12-SDIP (0.412', 10.46mm), 11 Leads, Exposed Pad
eDIP-12
650V
28 W
RFQ
NCP1070STCT3G
onsemi
IC OFFLINE SWITCH FLYBACK SOT223
Sa stock17570 pcs
130kHz
6.3V ~ 10V
Isolated
Flyback
8.2 V
68%
Over Load, Over Temperature, Over Voltage, Short Circuit
-
Yes
-
-
-
NCP1070
Tape & Reel (TR)
-
-
-40°C ~ 125°C (TJ)
Surface Mount
TO-261-4, TO-261AA
SOT-223 (TO-261)
700V
14 W
RFQ
NCP1239BD65R2G
onsemi
IC OFFLINE SWITCH FLYBACK 7SOIC
Sa stock73630 pcs
65kHz
8.8V ~ 35V
Isolated
Flyback
12 V
80%
Current Limiting, Over Load, Over Temperature, Over Voltage
-
No
-
-
-
NCP1239
Tape & Reel (TR)
-
-
-40°C ~ 125°C (TJ)
Surface Mount
8-SOIC (0.154", 3.90mm Width), 7 Leads
7-SOIC
-
-
RFQ
MC33023DWR2
onsemi
IC OFFLINE SWITCH FWD 16SOIC
Sa stock8480 pcs
1MHz
8.4V ~ 30V
Isolated
Forward
9.2 V
90%
Current Limiting
Frequency Control, Soft Start
No
-
-
-
MC33023
Tape & Reel (TR)
-
-
-40°C ~ 105°C (TA)
Surface Mount
16-SOIC (0.295", 7.50mm Width)
16-SOIC
-
-
RFQ
FSFR1800HS
onsemi
IC OFFLINE SW HALF-BRIDGE 9SIP
Sa stock13616 pcs
Up to 600kHz
10V ~ 25V
Isolated
Half-Bridge
12.5 V
50%
Current Limiting, Over Temperature, Over Voltage
Frequency Control
Yes
-
-
-
FSFR1800
Tube
FSFR-HS
-
-40°C ~ 130°C (TJ)
Through Hole
10-SIP Module, 9 Leads, Formed Leads
9-SIP
500V
260 W
RFQ
LNK362DG
Power Integrations
IC OFFLINE SWITCH FLYBACK 8SO
Sa stock15990 pcs
132kHz
-
Isolated
Flyback
-
60%
Current Limiting, Open Loop, Over Temperature, Short Circuit
-
Yes
-
-
-
LNK362
Tube
LinkSwitch®-XT
-
-40°C ~ 150°C (TJ)
Surface Mount
8-SOIC (0.154', 3.90mm Width), 7 Leads
SO-8C
700V
2.8 W
RFQ
TOP242PN
Power Integrations
IC OFFLINE SWITCH FLYBACK 8DIP
Sa stock31867 pcs
66kHz ~ 132kHz
-
Isolated
Flyback
-
66.5%
Current Limiting, Over Temperature, Over Voltage
Frequency Control
Yes
-
-
-
TOP242
Tube
TOPSwitch®-GX
-
-40°C ~ 150°C (TJ)
Through Hole
8-DIP (0.300', 7.62mm), 7 Leads
8-PDIP-B
700V
15 W
RFQ
LNK6766K
Power Integrations
IC OFFLINE SWITCH FLYBACK 12ESOP
Sa stock7890 pcs
120kHz ~ 136kHz
-
Isolated
Flyback
-
64%
Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit
-
Yes
-
-
-
LNK6766
Tube
LinkSwitch™-HP
-
-40°C ~ 150°C (TJ)
Surface Mount
12-BESOP (0.350', 8.89mm Width), 11 Leads, Exposed Pad
12-ESOP
650V
48 W
RFQ
ACT334US-T
Active-Semi
IC OFF-LINE SWITCH PWM 6SOP-23
Sa stock5400 pcs
Up to 85kHz
5.5 V ~ 28 V
Isolated
Flyback
18.6V
75%
Over Temperature, Over Voltage, Short Circuit
-
No
Tape & Reel (TR)
Lead free / RoHS Compliant
1 (Unlimited)
-
-
ActivePSR™
Converter Offline Flyback Topology Up to 85kHz SOT-23-6
-40°C ~ 85°C (TA)
Surface Mount
SOT-23-6
SOT-23-6
-
6W
RFQ
TOP221PN
Power Integrations
IC OFFLINE SWITCH MULT TOP 8DIP
Sa stock24653 pcs
100kHz
-
Isolated
Boost, Buck, Flyback, Forward
-
67%
Current Limiting, Over Temperature
-
Yes
-
-
-
TOP221
Tube
TOPSwitch®-II
-
-40°C ~ 150°C (TJ)
Through Hole
8-DIP (0.300', 7.62mm)
8-PDIP
700V
9 W
RFQ
TOP233GN
Power Integrations
IC OFFLINE SWITCH FLYBACK 8SMD
Sa stock7570 pcs
66kHz ~ 132kHz
-
Isolated
Flyback
-
78%
Current Limiting, Over Temperature, Over Voltage
Frequency Control
Yes
-
-
-
TOP233
Tube
TOPSwitch®-FX
-
-40°C ~ 150°C (TJ)
Surface Mount
8-SMD (7 Leads), Gull Wing
SMD-8B
700V
25 W
RFQ
TFS761HG
Power Integrations
IC OFFLIN CONV MULT TOP ESIP-16B
Sa stock17560 pcs
66kHz
11.1V ~ 13.4V
Isolated
Flyback, Forward
12.1 V
70%
Current Limiting, Over Temperature, Over Voltage, Short Circuit
EN
Yes
-
-
-
TFS761
Tube
HiperTFS®
-
-40°C ~ 150°C (TJ)
Through Hole
16-SSIP, 12 Leads, Exposed Pad, Formed Leads
eSIP-16B
530V, 725V
326 W
RFQ
VIPER53SPTR-E
STMicroelectronics
IC OFFLINE SW FLBACK 10POWERSO
Sa stock13173 pcs
Up to 300kHz
8.4V ~ 19V
Isolated
Flyback
11.5 V
-
Current Limiting, Over Load, Over Temperature, Short Circuit
EN, Frequency Control, Soft Start
Yes
-
-
-
VIPER53
Tape & Reel (TR)
VIPER™
-
-40°C ~ 150°C (TC)
Surface Mount
PowerSO-10 Exposed Bottom Pad
10-PowerSO
620V
65 W
RFQ
FSFR1700L
onsemi
IC OFFLINE SW HALF-BRIDGE 9SIP
Sa stock4480 pcs
Up to 300kHz
11.3V ~ 25V
Isolated
Half-Bridge
14.5 V
50%
Current Limiting, Over Load, Over Temperature, Over Voltage
EN, Frequency Control
Yes
-
-
-
FSFR1700
Tube
FSFR
-
-40°C ~ 130°C (TJ)
Through Hole
10-SIP Module, 9 Leads, Formed Leads
9-SIP (L forming)
500V
200 W
RFQ
NCP1013AP133G
onsemi
IC OFFLINE SWITCH FLYBACK 7DIP
Sa stock17410 pcs
130kHz
8.5V ~ 10V
Isolated
Flyback
-
67%
Over Load, Over Temperature, Over Voltage
-
Yes
-
-
-
NCP1013
Tube
-
-
-40°C ~ 150°C (TJ)
Through Hole
8-DIP (0.300', 7.62mm), 7 Leads
7-PDIP
700V
19 W
RFQ
UCC2808APW-1
Texas Instruments
IC OFFLINE SW MULT TOP 8TSSOP
Sa stock20685 pcs
1MHz
8.3V ~ 15V
Isolated
Full-Bridge, Half-Bridge, Push-Pull
12.5 V
49%
-
Frequency Control
No
-
-
-
UCC2808
Tube
-
-
-55°C ~ 150°C (TJ)
Surface Mount
8-TSSOP (0.173', 4.40mm Width)
8-TSSOP
-
-
RFQ
LNK520PN
Power Integrations
IC OFFLINE SWITCH FLYBACK 8DIP
Sa stock60880 pcs
30kHz ~ 42kHz
-
Isolated
Flyback
-
77%
Current Limiting, Open Loop, Over Temperature, Short Circuit
-
Yes
-
-
-
LNK520
Tube
LinkSwitch®
-
-40°C ~ 150°C (TJ)
Through Hole
8-DIP (0.300', 7.62mm), 7 Leads
8-PDIP-B
700V
5.5 W
RFQ
FAN6754MRMY-F116
onsemi
FCS FF-QR-MM CONTROLLERS
Sa stock43390 pcs
-
-
-
-
-
-
-
-
-
-
-
-
FAN6754
Bulk
*
-
-
-
-
-
-
-
RFQ
TNY290PG
Power Integrations
IC OFFLINE SWITCH FLYBACK 8DIP
Sa stock45355 pcs
124kHz ~ 140kHz
-
Isolated
Flyback
-
67%
Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit
EN
Yes
-
-
-
TNY290
Tube
TinySwitch®-4
-
-40°C ~ 150°C (TJ)
Through Hole
8-DIP (0.300', 7.62mm), 7 Leads
8-PDIP-C
725V
20 W
RFQ
TNY180PN
Power Integrations
28.5 W (85-265 VAC) 36.5 W (230
Sa stock45010 pcs
132kHz
-
Isolated
Flyback, Secondary Side SR
-
65%
Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit
EN
Yes
-
-
-
TNY180
Tube
-
-
-40°C ~ 150°C (TJ)
Through Hole
8-DIP (0.300", 7.62mm), 7 Leads
8-PDIP-C
650V
36.5 W
RFQ
LNK625DG-TL
Power Integrations
IC OFFLINE SWITCH FLYBACK 8SO
Sa stock37620 pcs
100kHz
-
Isolated
Flyback
-
54%
Current Limiting, Open Loop, Over Temperature, Short Circuit
-
Yes
-
-
-
LNK625
Tape & Reel (TR)
LinkSwitch®-CV
-
-40°C ~ 150°C (TJ)
Surface Mount
8-SOIC (0.154", 3.90mm Width), 7 Leads
SO-8C
725V
13.5 W
RFQ
FSL128MRTWDTU
onsemi
IC OFFLINE SW FLBACK TO220F-6L
Sa stock4660 pcs
67kHz
7.5V ~ 26V
Isolated
Flyback
12 V
67%
Current Limiting, Over Load, Over Temperature, Over Voltage
-
Yes
-
-
-
FSL128
Tube
FPS™
-
-40°C ~ 125°C (TJ)
Through Hole
TO-220-6 Full Pack, Formed Leads
TO-220F-6L (Forming)
800V
40 W
RFQ
L6598D013TR
STMicroelectronics
IC OFFLINE SW HALF-BRIDGE 16SO
Sa stock29706 pcs
400kHz
8V ~ 16.6V
Isolated
Half-Bridge
10.7 V
50%
-
EN
No
-
-
-
L6598
Tape & Reel (TR)
-
-
-40°C ~ 150°C (TJ)
Surface Mount
16-SOIC (0.154', 3.90mm Width)
16-SO
-
-
RFQ
TNY377PN
Power Integrations
IC OFFLINE SWITCH FLYBACK 8DIP
Sa stock11260 pcs
132kHz ~ 264kHz
-
Isolated
Flyback
-
65%
Current Limiting, Over Load, Over Temperature, Over Voltage
EN
Yes
-
-
-
TNY377
Tube
TinySwitch®-PK
-
-40°C ~ 150°C (TJ)
Through Hole
8-DIP (0.300", 7.62mm), 7 Leads
8-PDIP-C
700V
23.5 W
RFQ
NCP1215DR2G
onsemi
IC OFFLINE SWITCH FLYBACK 8SOIC
Sa stock16780 pcs
-
9V ~ 18V
Isolated
Flyback
12.5 V
-
-
-
No
-
-
-
NCP1215
Tape & Reel (TR)
-
-
150°C (TJ)
Surface Mount
8-SOIC (0.154", 3.90mm Width)
8-SOIC
-
-
RFQ
TOP245YN
Power Integrations
IC OFFLINE SW FLYBACK TO220-7C
Sa stock20351 pcs
66kHz ~ 132kHz
-
Isolated
Flyback
-
66.5%
Current Limiting, Over Temperature, Over Voltage
Frequency Control
Yes
-
-
-
TOP245
Tube
TOPSwitch®-GX
-
-40°C ~ 150°C (TJ)
Through Hole
TO-220-7 Formed Leads, 6 Leads
TO-220-7C
700V
85 W
RFQ
UCC2813D-4
Texas Instruments
IC OFFLINE SWITCH MULT TOP 8SOIC
Sa stock31973 pcs
1MHz
8.3V ~ 12V
Non-Isolated
Boost, Flyback, Forward
12.5 V
49%
-
Frequency Control
Yes
-
-
-
UCC2813
Tube
-
-
-55°C ~ 150°C (TJ)
Surface Mount
8-SOIC (0.154', 3.90mm Width)
8-SOIC
-
-
RFQ
STR-A6061HD
Sanken
IC OFFLINE SWITCH FLYBACK 8DIP
Sa stock8120 pcs
100kHz
8.1V ~ 32V
Isolated
Flyback
15.3 V
83%
Current Limiting, Over Load, Over Temperature, Over Voltage
-
Yes
-
-
-
STR-A6061
Tube
STR-A6000
-
-20°C ~ 125°C (TA)
Through Hole
8-DIP (0.300', 7.62mm), 7 Leads
8-DIP
700V
35 W
RFQ
VIPER17LDTR
STMicroelectronics
IC OFFLINE SWITCH FLYBACK 16SO
Sa stock55260 pcs
60kHz
8.5V ~ 23.5V
Isolated
Flyback
14 V
70%
Current Limiting, Over Temperature, Over Voltage
-
Yes
-
-
-
VIPER17
Tape & Reel (TR)
VIPer™ plus
-
-40°C ~ 150°C (TJ)
Surface Mount
16-SOIC (0.154", 3.90mm Width)
16-SO
800V
10 W
RFQ
LNK6427D
Power Integrations
IC OFFLINE SWITCH FLYBACK 8SO
Sa stock6400 pcs
Up to 85kHz
-
Isolated
Flyback
-
55%
Current Limiting, Open Loop, Over Temperature, Short Circuit
-
Yes
-
-
-
LNK6427
Tube
LinkSwitch™-3
-
-40°C ~ 150°C (TJ)
Surface Mount
8-SOIC (0.154', 3.90mm Width), 7 Leads
SO-8C
725V
7.5 W
RFQ
MIC3808YM
Microchip Technology
IC OFFLINE SW PUSH-PULL 8SOIC
Sa stock21673 pcs
Up to 1MHz
8.3V ~ 15V
Isolated
Push-Pull
12.5 V
49%
Current Limiting
Frequency Control
No
-
-
-
MIC3808
Tube
-
-
-40°C ~ 85°C (TA)
Surface Mount
8-SOIC (0.154', 3.90mm Width)
8-SOIC
-
-
RFQ
NCP1240AD100R2G
onsemi
IC OFFLINE SWITCH FLYBACK 7SOIC
Sa stock50040 pcs
100kHz
9.3V ~ 28V
Isolated
Flyback
12 V
80%
Over Load, Over Power, Over Temperature, Over Voltage
-
No
-
-
-
NCP1240
Tape & Reel (TR)
-
-
-40°C ~ 150°C (TJ)
Surface Mount
8-SOIC (0.154", 3.90mm Width), 7 Leads
7-SOIC
-
-
RFQ
KA3845B
onsemi
IC OFFLINE SWITCH 8DIP
Sa stock12490 pcs
Up to 500kHz
12V ~ 25V
-
-
8.4 V
48%
-
Frequency Control
No
-
-
-
KA3845
Tube
-
-
0°C ~ 70°C (TA)
Through Hole
8-DIP (0.300', 7.62mm)
8-DIP
-
-
RFQ