RB088BM150TL
Rohm Semiconductor
DIODE ARRAY SCHOTTKY 150V TO252
In magazzino5400 pcs
-
880 mV @ 5 A
15 µA @ 150 V
1 Pair Common Cathode
150 V
10A
Fast Recovery =< 500ns, > 200mA (Io)
-
150°C (Max)
-
-
-
RB088
Tape & Reel (TR)
-
-
-
Schottky
Surface Mount
TO-252-3, DPak (2 Leads + Tab), SC-63
TO-252
-
RFQ
SBR10U40CT
Diodes Incorporated
DIODE ARRAY SBR 40V 5A TO220AB
In magazzino79750 pcs
-
440 mV @ 5 A
500 µA @ 40 V
1 Pair Common Cathode
40 V
5A
Fast Recovery =< 500ns, > 200mA (Io)
-
-65°C ~ 150°C
-
-
-
SBR10
Tube
-
-
SBR®
Super Barrier
Through Hole
TO-220-3
TO-220-3
-
RFQ
SS10P3CHM3/86A
Vishay General Semiconductor - Diodes Division
DIODE ARRAY SCHOTTKY 30V TO277A
In magazzino4250 pcs
-
530 mV @ 5 A
550 µA @ 30 V
1 Pair Common Cathode
30 V
5A
Fast Recovery =< 500ns, > 200mA (Io)
-
-55°C ~ 150°C
-
-
-
SS10P3
Tape & Reel (TR)
-
-
eSMP®
Schottky
Surface Mount
TO-277, 3-PowerDFN
TO-277A (SMPC)
-
RFQ
UG18BCT-E3/45
Vishay General Semiconductor - Diodes Division
DIODE ARRAY GP 100V 18A TO220AB
In magazzino5460 pcs
-
1.1 V @ 9 A
10 µA @ 100 V
1 Pair Common Cathode
100 V
18A
Fast Recovery =< 500ns, > 200mA (Io)
30 ns
-65°C ~ 150°C
-
-
-
UG18
Tube
-
-
-
Standard
Through Hole
TO-220-3
TO-220-3
-
RFQ
MBRB1545CTTRL
Vishay General Semiconductor - Diodes Division
DIODE ARRAY SCHOTTKY 45V D2PAK
In magazzino5150 pcs
-
840 mV @ 7.5 A
100 µA @ 45 V
1 Pair Common Cathode
45 V
7.5A
Fast Recovery =< 500ns, > 200mA (Io)
-
-65°C ~ 150°C
-
-
-
MBRB15
Tape & Reel (TR)
-
-
-
Schottky
Surface Mount
TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
TO-263AB (D²PAK)
-
RFQ
MBR2090CTG
onsemi
DIODE ARRAY SCHOTTKY 90V TO220AB
In magazzino4220 pcs
-
850 mV @ 10 A
100 µA @ 90 V
1 Pair Common Cathode
90 V
10A
Fast Recovery =< 500ns, > 200mA (Io)
-
-65°C ~ 175°C
-
-
-
MBR2090
Tube
-
-
SWITCHMODE™
Schottky
Through Hole
TO-220-3
TO-220
-
RFQ
30CPQ040
Vishay General Semiconductor - Diodes Division
DIODE ARRAY SCHOTTKY 40V TO247AC
In magazzino3800 pcs
-
540 mV @ 15 A
1.75 mA @ 40 V
1 Pair Common Cathode
40 V
15A
Fast Recovery =< 500ns, > 200mA (Io)
-
-55°C ~ 150°C
-
-
-
30CPQ
Tube
-
-
-
Schottky
Through Hole
TO-247-3
TO-247AC
-
RFQ
48CTQ060
Vishay General Semiconductor - Diodes Division
DIODE ARRAY SCHOTTKY 60V TO220AB
In magazzino5070 pcs
-
610 mV @ 20 A
2 mA @ 60 V
1 Pair Common Cathode
60 V
20A
Fast Recovery =< 500ns, > 200mA (Io)
-
-55°C ~ 150°C
-
-
-
48CTQ
Tube
-
-
-
Schottky
Through Hole
TO-220-3
TO-220-3
-
RFQ
SB80W06T-P-TL-H
onsemi
DIODE ARRAY SCHOTTKY 60V 4A TPFA
In magazzino4520 pcs
-
600 mV @ 3 A
100 µA @ 30 V
1 Pair Common Cathode
60 V
4A
Fast Recovery =< 500ns, > 200mA (Io)
-
-55°C ~ 150°C
-
-
-
SB80
Tape & Reel (TR)
-
-
-
Schottky
Surface Mount
TO-252-3, DPak (2 Leads + Tab), SC-63
TP-FA
-
RFQ
STPR1040CTW
Diodes Incorporated
FRED GPP RECTIFIER TO220AB TUBE
In magazzino211060 pcs
-
1.5 V @ 10 A
10 µA @ 400 V
1 Pair Common Cathode
400 V
10A (DC)
Fast Recovery =< 500ns, > 200mA (Io)
35 ns
-55°C ~ 150°C
-
-
-
STPR10
Tube
-
-
-
Standard
Through Hole
TO-220-3 Full Pack
TO-220AB
-
RFQ
SDT40H100CT
Diodes Incorporated
DIODE SCHOTTKY 100V 20A TO220AB
In magazzino77360 pcs
-
700 mV @ 20 A
120 µA @ 100 V
1 Pair Common Cathode
100 V
20A
Fast Recovery =< 500ns, > 200mA (Io)
-
-55°C ~ 150°C
-
-
-
SDT40
Tube
-
-
-
Schottky
Through Hole
TO-220-3
TO-220-3
-
RFQ
DSP8-12AS
IXYS Corporation
DIODE ARRAY GP 1200V 11A TO263
In magazzino30838 pcs
DSP8-12
1.15V @ 7A
5µA @ 1200V
1 Pair Series Connection
1200V
11A
Standard Recovery >500ns, > 200mA (Io)
-
-55°C ~ 175°C
Tape & Reel (TR)
Lead free / RoHS Compliant
1 (Unlimited)
-
-
32 Weeks
Diode Array 1 Pair Series Connection Standard 1200V 11A Surface Mount TO-263-4, D²Pak (3 Leads + Tab), TO-263AA
-
-
Surface Mount
TO-263-4, D²Pak (3 Leads + Tab), TO-263AA
TO-263 (D²Pak)
Standard
RFQ
STPS30L45CFP
STMicroelectronics
DIODE ARRAY SCHOTTKY 45V TO220FP
In magazzino57640 pcs
-
550 mV @ 15 A
400 µA @ 45 V
1 Pair Common Cathode
45 V
15A
Fast Recovery =< 500ns, > 200mA (Io)
-
150°C (Max)
-
-
-
STPS30
Tube
-
-
-
Schottky
Through Hole
TO-220-3 Full Pack
TO-220FP
-
RFQ
STPS15L45CB
STMicroelectronics
DIODE ARRAY SCHOTTKY 45V DPAK
In magazzino49150 pcs
-
520 mV @ 7.5 A
1 mA @ 45 V
1 Pair Common Cathode
45 V
7.5A
Fast Recovery =< 500ns, > 200mA (Io)
-
150°C (Max)
-
-
-
STPS15
Tube
-
-
-
Schottky
Surface Mount
TO-252-3, DPak (2 Leads + Tab), SC-63
DPAK
-
RFQ
SBR20200CTFP
Diodes Incorporated
DIODE ARRAY SBR 200V 10A ITO220
In magazzino54890 pcs
-
980 mV @ 10 mA
100 µA @ 200 V
1 Pair Common Cathode
200 V
10A
Fast Recovery =< 500ns, > 200mA (Io)
-
-65°C ~ 175°C
-
-
-
SBR20200
Tube
-
-
SBR®
Super Barrier
Through Hole
TO-220-3 Full Pack, Isolated Tab
ITO-220AB
-
RFQ
BAV170-7-F
Diodes Incorporated
DIODE ARRAY GP 85V 125MA SOT23-3
In magazzino677400 pcs
-
1.1 V @ 50 mA
5 nA @ 75 V
1 Pair Common Cathode
85 V
125mA (DC)
Small Signal =< 200mA (Io), Any Speed
3 µs
-65°C ~ 150°C
-
-
-
BAV170
Tape & Reel (TR)
-
-
-
Standard
Surface Mount
TO-236-3, SC-59, SOT-23-3
SOT-23-3
-
RFQ
APT2X30D30J
Microchip Technology
DIODE MODULE 300V 30A ISOTOP
In magazzino1220 pcs
-
1.4 V @ 30 A
150 µA @ 300 V
2 Independent
300 V
30A
Fast Recovery =< 500ns, > 200mA (Io)
25 ns
-55°C ~ 175°C
-
-
-
APT2X30
Tube
-
-
-
Standard
Chassis Mount
SOT-227-4, miniBLOC
ISOTOP®
-
RFQ
SBL2040CT
Diodes Incorporated
DIODE ARRAY SCHOTTKY 40V TO220AB
In magazzino4300 pcs
-
550 mV @ 10 A
1 mA @ 40 V
1 Pair Common Cathode
40 V
20A
Fast Recovery =< 500ns, > 200mA (Io)
-
-65°C ~ 150°C
-
-
-
SBL2040
Tube
-
-
-
Schottky
Through Hole
TO-220-3
TO-220-3
-
RFQ
BAW56HDW-13
Diodes Incorporated
DIODE FS 100V 250MA SOT363
In magazzino1338750 pcs
-
1.25 V @ 150 mA
500 nA @ 80 V
2 Pair Common Anode
100 V
250mA (DC)
Fast Recovery =< 500ns, > 200mA (Io)
4 ns
-65°C ~ 155°C
-
-
-
BAW56
Tape & Reel (TR)
-
-
Automotive, AEC-Q101
Standard
Surface Mount
6-TSSOP, SC-88, SOT-363
SOT-363
-
RFQ
LQA20T300C
Power Integrations
DIODE ARRAY SCHOTTKY 300V TO220
In magazzino32557 pcs
-
1.9 V @ 10 A
25 µA @ 300 V
1 Pair Common Cathode
300 V
10A
Fast Recovery =< 500ns, > 200mA (Io)
12.6 ns
150°C (Max)
-
-
-
LQA20
Tube
-
-
Qspeed™
Schottky
Through Hole
TO-220-3
TO-220AB
-
RFQ
MDD172-16N1
IXYS
DIODE MODULE 1.6KV 190A Y4-M6
In magazzino705 pcs
-
1.15 V @ 300 A
20 mA @ 1600 V
1 Pair Series Connection
1600 V
190A
Standard Recovery >500ns, > 200mA (Io)
-
-40°C ~ 150°C
-
-
-
MDD172
Box
-
-
-
Standard
Chassis Mount
Y4-M6
Y4-M6
-
RFQ
40CTQ045
Vishay General Semiconductor - Diodes Division
DIODE ARRAY SCHOTTKY 45V TO220AB
In magazzino3730 pcs
-
530 mV @ 20 A
3 mA @ 45 V
1 Pair Common Cathode
45 V
20A
Fast Recovery =< 500ns, > 200mA (Io)
-
-55°C ~ 150°C
-
-
-
40CTQ
Tube
-
-
-
Schottky
Through Hole
TO-220-3
TO-220-3
-
RFQ
BAT54S-7
Diodes Incorporated
DIODE ARRAY SCHOTTKY 30V SOT23-3
In magazzino5020 pcs
-
800 mV @ 100 mA
2 µA @ 25 V
1 Pair Series Connection
30 V
200mA (DC)
Small Signal =< 200mA (Io), Any Speed
5 ns
-65°C ~ 150°C
-
-
-
BAT54
Tape & Reel (TR)
-
-
-
Schottky
Surface Mount
TO-236-3, SC-59, SOT-23-3
SOT-23-3
-
RFQ
MBR3060CTP
SMC Diode Solutions
DIODE ARRAY SCHOTTKY 60V TO220AB
In magazzino150430 pcs
-
770 mV @ 15 A
5 mA @ 60 V
1 Pair Common Cathode
60 V
-
Fast Recovery =< 500ns, > 200mA (Io)
-
-55°C ~ 150°C
-
-
-
MBR3060
Tube
-
-
-
Schottky
Through Hole
TO-220-3
TO-220AB
-
RFQ
V30150C-M3/4W
Vishay General Semiconductor - Diodes Division
DIODE ARRAY SCHOTTKY 150V TO220
In magazzino50850 pcs
-
1.36 V @ 15 A
200 µA @ 150 V
1 Pair Common Cathode
150 V
15A
Fast Recovery =< 500ns, > 200mA (Io)
-
-55°C ~ 150°C
-
-
-
V30150
Tube
-
-
TMBS®
Schottky
Through Hole
TO-220-3
TO-220-3
-
RFQ
STTA9012TV2
STMicroelectronics
DIODE MODULE 1.2KV 45A ISOTOP
In magazzino3610 pcs
-
2.05 V @ 45 A
200 µA @ 960 V
2 Independent
1200 V
45A
Fast Recovery =< 500ns, > 200mA (Io)
115 ns
150°C (Max)
-
-
-
STTA90
Tube
-
-
TURBOSWITCH™
Standard
Chassis Mount
ISOTOP
ISOTOP®
-
RFQ
BAS70-05
Diotec Semiconductor
SCHOTTKY SOT-23 70V 0.07A
In magazzino1381050 pcs
-
1 V @ 15 mA
100 nA @ 50 V
1 Pair Common Cathode
70 V
70mA
Small Signal =< 200mA (Io), Any Speed
5 ns
-55°C ~ 150°C
-
-
-
BAS70
Tape & Reel (TR)
-
-
-
Schottky
Surface Mount
TO-236-3, SC-59, SOT-23-3
SOT-23-3 (TO-236)
-
RFQ
FFA10U120DNTU
onsemi
DIODE ARRAY GP 1200V 10A TO3P
In magazzino4480 pcs
-
3.5 V @ 10 A
10 µA @ 1200 V
1 Pair Common Cathode
1200 V
10A
Fast Recovery =< 500ns, > 200mA (Io)
100 ns
-65°C ~ 150°C
-
-
-
FFA10
Tube
-
-
-
Standard
Through Hole
TO-3P-3, SC-65-3
TO-3P
-
RFQ
RB095B-40TL
Rohm Semiconductor
DIODE ARRAY SCHOTTKY 40V 3A CPD
In magazzino5320 pcs
-
550 mV @ 3 A
100 µA @ 40 V
1 Pair Common Cathode
40 V
3A
Fast Recovery =< 500ns, > 200mA (Io)
-
150°C (Max)
-
-
-
RB095B-40
Tape & Reel (TR)
-
-
-
Schottky
Surface Mount
TO-252-3, DPak (2 Leads + Tab), SC-63
CPD
-
RFQ
MA3J142EGL
Panasonic Electronic Components
DIODE ARRAY GP 80V 100MA SMINI3
In magazzino5120 pcs
-
1.2 V @ 100 mA
100 nA @ 75 V
1 Pair Common Cathode
80 V
100mA (DC)
Small Signal =< 200mA (Io), Any Speed
3 ns
150°C (Max)
-
-
-
MA3J142
Tape & Reel (TR)
-
-
-
Standard
Surface Mount
SC-85
SMini3-F2
-
RFQ
BAS70A_R1_00001
Panjit International Inc.
SURFACE MOUNT SCHOTTKY DIODE
In magazzino757050 pcs
-
1 V @ 15 mA
1 µA @ 70 V
1 Pair Common Anode
70 V
200mA
Small Signal =< 200mA (Io), Any Speed
-
-55°C ~ 150°C
-
-
-
BAS70
Tape & Reel (TR)
-
-
BAS70
Schottky
Surface Mount
TO-236-3, SC-59, SOT-23-3
SOT-23
-
RFQ
STTA3006CW
STMicroelectronics
DIODE ARRAY GP 600V 15A TO247-3
In magazzino4810 pcs
-
1.8 V @ 15 A
100 µA @ 480 V
1 Pair Common Cathode
600 V
15A
Fast Recovery =< 500ns, > 200mA (Io)
65 ns
150°C (Max)
-
-
-
STTA300
Tube
-
-
TURBOSWITCH™
Standard
Through Hole
TO-247-3
TO-247-3
-
RFQ
FEP16GTD
onsemi
DIODE ARRAY GP 400V 16A TO220AB
In magazzino4580 pcs
-
1.3 V @ 8 A
10 µA @ 400 V
1 Pair Series Connection
400 V
16A
Fast Recovery =< 500ns, > 200mA (Io)
50 ns
-55°C ~ 150°C
-
-
-
FEP16
Tube
-
-
-
Standard
Through Hole
TO-220-3
TO-220-3
-
RFQ
BAS40DW-04-7-F
Diodes Incorporated
DIODE ARRAY SCHOTTKY 40V SOT363
In magazzino363340 pcs
-
1 V @ 40 mA
200 nA @ 30 V
2 Pair Series Connection
40 V
200mA (DC)
Small Signal =< 200mA (Io), Any Speed
5 ns
-55°C ~ 125°C
-
-
-
BAS40
Tape & Reel (TR)
-
-
-
Schottky
Surface Mount
6-TSSOP, SC-88, SOT-363
SOT-363
-
RFQ
SBR2045CT
Diodes Incorporated
DIODE ARRAY SBR 45V 10A TO220AB
In magazzino138900 pcs
-
540 mV @ 10 A
500 µA @ 45 V
1 Pair Common Cathode
45 V
10A
Fast Recovery =< 500ns, > 200mA (Io)
-
-65°C ~ 150°C
-
-
-
SBR2045
Tube
-
-
SBR®
Super Barrier
Through Hole
TO-220-3
TO-220-3
-
RFQ
FYV0203DNMTF
onsemi
DIODE ARRAY SCHOTTKY 30V SOT23-3
In magazzino3600 pcs
-
1 V @ 200 mA
2 µA @ 30 V
1 Pair Common Cathode
30 V
200mA
Small Signal =< 200mA (Io), Any Speed
-
150°C (Max)
-
-
-
FYV02
Tape & Reel (TR)
-
-
-
Schottky
Surface Mount
TO-236-3, SC-59, SOT-23-3
SOT-23-3
-
RFQ
DSSK40-006B
IXYS
DIODE ARRAY SCHOTTKY 60V TO247AD
In magazzino4090 pcs
-
530 mV @ 20 A
20 mA @ 60 V
1 Pair Common Cathode
60 V
20A
Fast Recovery =< 500ns, > 200mA (Io)
-
-55°C ~ 150°C
-
-
-
DSSK40
Tube
-
-
-
Schottky
Through Hole
TO-247-3
TO-247AD
-
RFQ
MBR1045CT
Diodes Incorporated
DIODE ARRAY SCHOTTKY 45V TO220AB
In magazzino4570 pcs
-
840 mV @ 10 A
100 µA @ 45 V
1 Pair Common Cathode
45 V
10A
Fast Recovery =< 500ns, > 200mA (Io)
-
-55°C ~ 150°C
-
-
-
MBR104
Tube
-
-
-
Schottky
Through Hole
TO-220-3
TO-220-3
-
RFQ
BAT54CT-7-F
Diodes Incorporated
DIODE ARRAY SCHOTTKY 30V SOT523
In magazzino483150 pcs
-
1 V @ 100 mA
2 µA @ 25 V
1 Pair Common Cathode
30 V
200mA (DC)
Small Signal =< 200mA (Io), Any Speed
5 ns
-65°C ~ 125°C
-
-
-
BAT54
Tape & Reel (TR)
-
-
-
Schottky
Surface Mount
SOT-523
SOT-523
-
RFQ
APT2X61DQ100J
Microchip Technology
DIODE MODULE 1KV 60A ISOTOP
In magazzino1740 pcs
-
2.8 V @ 60 A
100 µA @ 1000 V
2 Independent
1000 V
60A
Fast Recovery =< 500ns, > 200mA (Io)
235 ns
-
-
-
-
APT2X61
Tube
-
-
-
Standard
Chassis Mount
SOT-227-4, miniBLOC
ISOTOP®
-
RFQ
M30L40C-E3/4W
Vishay General Semiconductor - Diodes Division
DIODE ARRAY SCHOTTKY 40V TO220AB
In magazzino4850 pcs
-
550 mV @ 15 A
360 µA @ 40 V
1 Pair Common Cathode
40 V
15A
Fast Recovery =< 500ns, > 200mA (Io)
-
-65°C ~ 150°C
-
-
-
M30L40
Tube
-
-
-
Schottky
Through Hole
TO-220-3
TO-220-3
-
RFQ
MURHB840CTT4G
onsemi
DIODE ARRAY GP 400V 4A D2PAK
In magazzino5430 pcs
-
2.2 V @ 4 A
10 µA @ 400 V
1 Pair Common Cathode
400 V
4A
Fast Recovery =< 500ns, > 200mA (Io)
28 ns
-65°C ~ 175°C
-
-
-
MURHB840
Tape & Reel (TR)
-
-
-
Standard
Surface Mount
TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
D²PAK
-
RFQ
BAV199T-7-F
Diodes Incorporated
DIODE ARRAY GP 85V 125MA SOT523
In magazzino577700 pcs
-
1.1 V @ 50 mA
5 nA @ 75 V
1 Pair Series Connection
85 V
125mA (DC)
Small Signal =< 200mA (Io), Any Speed
3 µs
-65°C ~ 150°C
-
-
-
BAV199
Tape & Reel (TR)
-
-
-
Standard
Surface Mount
SOT-523
SOT-523
-
RFQ
UFB200FA40
Vishay General Semiconductor - Diodes Division
DIODE MODULE 400V 100A SOT227B
In magazzino3750 pcs
-
1.24 V @ 100 A
50 µA @ 400 V
2 Independent
400 V
100A (DC)
Fast Recovery =< 500ns, > 200mA (Io)
93 ns
-
-
-
-
UFB200
Tube
-
-
-
Standard
Chassis Mount
SOT-227-4, miniBLOC
SOT-227
-
RFQ
M6060P-E3/45
Vishay General Semiconductor - Diodes Division
DIODE ARRAY SCHOTTKY 60V TO3P
In magazzino20946 pcs
-
640 mV @ 30 A
600 µA @ 60 V
1 Pair Common Cathode
60 V
30A
Fast Recovery =< 500ns, > 200mA (Io)
-
-65°C ~ 150°C
-
-
-
M6060
Tube
-
-
-
Schottky
Through Hole
TO-3P-3, SC-65-3
TO-247AD (TO-3P)
-
RFQ
SDB20S30
Infineon Technologies
DIODE ARRAY SCHOTTKY 300V D2PAK
In magazzino5140 pcs
-
1.7 V @ 10 A
200 µA @ 300 V
1 Pair Common Cathode
300 V
10A (DC)
No Recovery Time > 500mA (Io)
0 ns
-55°C ~ 175°C
-
-
-
SDB20
Tape & Reel (TR)
-
-
CoolSiC™+
SiC (Silicon Carbide) Schottky
Surface Mount
TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
PG-TO220-3-45
-
RFQ
F18107CCD1200
Sensata-Crydom
MODULE DIODE 105A 480VAC
In magazzino270 pcs
-
1.65 V @ 300 A
-
1 Pair Common Cathode
1200 V
105A (DC)
Standard Recovery >500ns, > 200mA (Io)
-
-
-
-
-
F18107
Bulk
-
-
F18
Standard
Chassis Mount
Module
-
-
RFQ
MBR10200CT-LJ
Diodes Incorporated
DIODE ARRAY 200V 5A TO220AB
In magazzino3940 pcs
-
920 mV @ 5 A
100 µA @ 200 V
1 Pair Common Cathode
200 V
5A
Fast Recovery =< 500ns, > 200mA (Io)
-
-55°C ~ 175°C
-
-
-
MBR10200
Tube
-
-
Automotive, AEC-Q101
Schottky
Through Hole
TO-220-3
TO-220-3
-
RFQ
STTH2003CFP
STMicroelectronics
DIODE ARRAY GP 300V 10A TO220FP
In magazzino32530 pcs
-
1.25 V @ 10 A
20 µA @ 300 V
1 Pair Common Cathode
300 V
10A
Fast Recovery =< 500ns, > 200mA (Io)
35 ns
175°C (Max)
-
-
-
STTH2003
Tube
-
-
-
Standard
Through Hole
TO-220-3 Full Pack
TO-220FP
-
RFQ
SBR30100CT
Diodes Incorporated
DIODE ARRAY SBR 100V 15A TO220AB
In magazzino5170 pcs
-
850 mV @ 15 A
100 µA @ 100 V
1 Pair Common Cathode
100 V
15A
Standard Recovery >500ns, > 200mA (Io)
-
-65°C ~ 175°C
-
-
-
SBR30100
Tube
-
-
SBR®
Super Barrier
Through Hole
TO-220-3
TO-220-3
-
RFQ