Linear current sensor ic - Allicdata Electronics

Related Categories

< 246 247 248 249 250 >

Allicdata Part#	Mft.Part#	Company	Spec.	QTY.	Pricing(USD)
LTC4070IDDB#TRM PBF-ND	LTC4070IDDB#TRM PBF	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Battery Chemistry: Lithium-Ion/Polymer Battery Pack Voltage: 4.2V Operating Temperature: -40C ~ 125C (TJ) Package / Case: 8-WFDFN Exposed Pad Supplier Device Package: 8-DFN (3x2) Base Part Number: LTC4070	1000 Order	500+: $1.8057
LT3650IDD-8.2#T RPBF-ND	LT3650IDD-8.2#T RPBF	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Battery Chemistry: Lithium-Ion/Polymer Number of Cells: 2 Current - Charging: Constant - Programmable Programmable Features: Timer Fault Protection: Over Temperature Charge Current - Max: 2A Battery Pack Voltage: 8.2V Voltage - Supply (Max): 32V Operating Temperature: -40C ~ 85C (TA) Package / Case: 12-WFDFN Exposed Pad Supplier Device Package: 12-DFN (3x3) Base Part Number: LT3650	1000 Order	2500+: $2.5768
LTC4006EGN-2#PB F-ND	LTC4006EGN-2#PB F	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Lithium-Ion Number of Cells: 3 Current - Charging: Constant - Programmable Programmable Features: Timer Battery Pack Voltage: 12.6V Voltage - Supply (Max): 28V Operating Temperature: -40C ~ 85C (TA) Package / Case: 16-SSOP (0.154", 3.90mm Width) Supplier Device Package: 16-SSOP Base Part Number: LTC4006	1000 Order	--
LTC1729CS8-4.2# PBF-ND	LTC1729CS8-4.2# PBF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Lithium-Ion Number of Cells: 1 Battery Pack Voltage: 4.2V Voltage - Supply (Max): 28V Operating Temperature: 0C ~ 70C (TA) Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC Base Part Number: LTC1729	1000 Order	300+: $1.478
LT1769CGN#TRPBF -ND	LT1769CGN#TRPBF	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Battery Chemistry: Multi-Chemistry Current - Charging: Constant - Programmable Fault Protection: Over Voltage Charge Current - Max: 2A Battery Pack Voltage: 20V (Max) Voltage - Supply (Max): 28V Operating Temperature: 0C ~ 70C (TA) Package / Case: 28-SSOP (0.154", 3.90mm Width) Supplier Device Package: 28-SSOP Base Part Number: LT1769	1000 Order	--
LTM8062AEV#PBF- ND	LTM8062AEV#PBF	Linear Technology/Analog Devices	View more Series: Module Packaging: Tray Part Status: Active Battery Chemistry: Multi-Chemistry Number of Cells: 1 Current - Charging: Constant Programmable Features: Timer Charge Current - Max: 2.1A Voltage - Supply (Max): 32V Operating Temperature: -40C ~ 125C (TA) Package / Case: 77-BLGA Supplier Device Package: 77-LGA (15x9) Base Part Number: LTM8062	22 Order	--
LT1579CS8-5#TRP BF-ND	LT1579CS8-5#TRP BF	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Power Management Battery Chemistry: Multi-Chemistry Number of Cells: 1 Fault Protection: Over Current, Over Temperature, Reverse Battery, Reverse Current Operating Temperature: 0C ~ 125C (TJ) Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC Base Part Number: LT1579	1000 Order	2500+: $2.5383
LTC4064EMSE#PBF -ND	LTC4064EMSE#PBF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Lithium-Ion Number of Cells: 1 Current - Charging: Constant - Programmable Programmable Features: Timer Charge Current - Max: 1A Battery Pack Voltage: 4V Voltage - Supply (Max): 6.5V Operating Temperature: -40C ~ 85C (TA) Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Supplier Device Package: 10-MSOP-EP Base Part Number: LTC4064	596 Order	1+: $2.3436 25+: $1.6645 100+: $1.3687
LTC4080EDD#PBF- ND	LTC4080EDD#PBF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Lithium-Ion Number of Cells: 1 Current - Charging: Constant - Programmable Charge Current - Max: 525mA Battery Pack Voltage: 4.2V Voltage - Supply (Max): 5.5V Operating Temperature: -40C ~ 85C (TA) Package / Case: 10-WFDFN Exposed Pad Supplier Device Package: 10-DFN (3x3) Base Part Number: LTC4080	2182 Order	1+: $2.457 25+: $1.7416 100+: $1.4394
LTC4054ES5-4.2# TRPBF-ND	LTC4054ES5-4.2# TRPBF	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Battery Chemistry: Lithium-Ion Number of Cells: 1 Current - Charging: Constant - Programmable Charge Current - Max: 800mA Battery Pack Voltage: 4.2V Voltage - Supply (Max): 6.5V Operating Temperature: -40C ~ 85C (TA) Package / Case: SOT-23-5 Thin, TSOT-23-5 Supplier Device Package: TSOT-23-5 Base Part Number: LTC4054	1000 Order	--
LT3650IMSE-8.4# PBF-ND	LT3650IMSE-8.4# PBF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Lithium-Ion/Polymer Number of Cells: 2 Current - Charging: Constant - Programmable Programmable Features: Timer Fault Protection: Over Temperature Charge Current - Max: 2A Battery Pack Voltage: 8.4V Voltage - Supply (Max): 32V Operating Temperature: -40C ~ 85C (TA) Package / Case: 12-TSSOP (0.118", 3.00mm Width) Exposed Pad Supplier Device Package: 12-MSOP-EP Base Part Number: LT3650	455 Order	--
LTC1729CMS8-8.4 #PBF-ND	LTC1729CMS8-8.4 #PBF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Lithium-Ion Number of Cells: 2 Battery Pack Voltage: 8.4V Voltage - Supply (Max): 28V Operating Temperature: 0C ~ 70C (TA) Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Supplier Device Package: 8-MSOP Base Part Number: LTC1729	49 Order	1+: $3.2319 25+: $2.144 100+: $1.6065
LTC4088EDE-1#PB F-ND	LTC4088EDE-1#PB F	Linear Technology/Analog Devices	View more Series: PowerPath Packaging: Tube Part Status: Active Battery Chemistry: Lithium-Ion/Polymer Number of Cells: 1 Current - Charging: Constant - Programmable Fault Protection: Over Temperature Charge Current - Max: 1.5A Battery Pack Voltage: 4.2V Voltage - Supply (Max): 5.5V Interface: USB Operating Temperature: -40C ~ 85C (TA) Package / Case: 14-WFDFN Exposed Pad Supplier Device Package: 14-DFN (4x3) Base Part Number: LTC4088	1000 Order	364+: $1.6643
LT1579IGN-3.3#P BF-ND	LT1579IGN-3.3#P BF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Function: Power Management Battery Chemistry: Multi-Chemistry Number of Cells: 1 Fault Protection: Over Current, Over Temperature, Reverse Battery, Reverse Current Operating Temperature: -40C ~ 125C (TJ) Package / Case: 16-SSOP (0.154", 3.90mm Width) Supplier Device Package: 16-SSOP Base Part Number: LT1579	1000 Order	200+: $3.6629
LTC4069EDC#TRPB F-ND	LTC4069EDC#TRPB F	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Battery Chemistry: Lithium-Ion Number of Cells: 1 Current - Charging: Constant - Programmable Charge Current - Max: 750mA Battery Pack Voltage: 4.2V Voltage - Supply (Max): 5.5V Operating Temperature: -40C ~ 85C (TA) Package / Case: 6-WFDFN Exposed Pad Supplier Device Package: 6-DFN (2x2) Base Part Number: LTC4069	1000 Order	--
LTC4065EDC-4.4# TRMPBFTR-ND	LTC4065EDC-4.4# TRMPBF	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Battery Chemistry: Lithium-Ion Number of Cells: 1 Current - Charging: Constant - Programmable Charge Current - Max: 750mA Battery Pack Voltage: 4.4V Voltage - Supply (Max): 5.5V Operating Temperature: -40C ~ 85C (TA) Package / Case: 6-WFDFN Exposed Pad Supplier Device Package: 6-DFN (2x2) Base Part Number: LTC4065	1500 Order	500+: $0.8418
LTC1731EMS8-4.1 #TRPBF-ND	LTC1731EMS8-4.1 #TRPBF	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Battery Chemistry: Multi-Chemistry Number of Cells: 1 Current - Charging: Constant - Programmable Programmable Features: Timer Charge Current - Max: 500mA Battery Pack Voltage: 4.1V Voltage - Supply (Max): 12V Operating Temperature: -40C ~ 85C (TA) Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Supplier Device Package: 8-MSOP Base Part Number: LTC1731	1000 Order	2500+: $1.2852
LT1571EGN-5#TRP BF-ND	LT1571EGN-5#TRP BF	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Battery Chemistry: Multi-Chemistry Current - Charging: Constant - Programmable Charge Current - Max: 1.5A Battery Pack Voltage: 4.2V Voltage - Supply (Max): 26V Operating Temperature: -40C ~ 85C (TA) Package / Case: 16-SSOP (0.154", 3.90mm Width) Supplier Device Package: 16-SSOP Base Part Number: LT1571	1000 Order	2500+: $2.7632
LT1505CG-1#PBF- ND	LT1505CG-1#PBF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Multi-Chemistry Number of Cells: 3 ~ 4 Current - Charging: Constant - Programmable Fault Protection: Over Voltage Battery Pack Voltage: 20V (Max) Voltage - Supply (Max): 24V Operating Temperature: 0C ~ 70C (TA) Package / Case: 28-SSOP (0.209", 5.30mm Width) Supplier Device Package: 28-SSOP Base Part Number: LT1505	1000 Order	--
LTM8062AIV#PBF- ND	LTM8062AIV#PBF	Linear Technology/Analog Devices	View more Series: Module Packaging: Tray Part Status: Active Battery Chemistry: Multi-Chemistry Number of Cells: 1 Current - Charging: Constant Programmable Features: Timer Charge Current - Max: 2.1A Voltage - Supply (Max): 32V Operating Temperature: -40C ~ 125C (TA) Package / Case: 77-BLGA Supplier Device Package: 77-LGA (15x9) Base Part Number: LTM8062	195 Order	1+: $12.4488 25+: $10.4101 100+: $8.8486
LTC4091EDJC#PBF -ND	LTC4091EDJC#PBF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Lithium-Ion/Polymer Programmable Features: Timer Fault Protection: Over Temperature Charge Current - Max: 1.5A Battery Pack Voltage: 4.2V Voltage - Supply (Max): 36V Operating Temperature: -40C ~ 125C (TJ) Package / Case: 22-WFDFN Exposed Pad Supplier Device Package: 22-DFN (6x3) Base Part Number: LTC4091	458 Order	1+: $4.1958 25+: $2.9817 100+: $2.5383
LT1513CR#TRPBF- ND	LT1513CR#TRPBF	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Battery Chemistry: Multi-Chemistry Number of Cells: 1 Current - Charging: Constant - Programmable Charge Current - Max: 2A Battery Pack Voltage: 20V (Max) Voltage - Supply (Max): 25V Operating Temperature: 0C ~ 125C (TJ) Package / Case: TO-263-8, DPak (7 Leads + Tab), TO-263CA Supplier Device Package: D2PAK-7 Base Part Number: LT1513	1000 Order	--
LTC4080XEMSE#PB F-ND	LTC4080XEMSE#PB F	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Lithium-Ion/Polymer Number of Cells: 1 Current - Charging: Constant - Programmable Charge Current - Max: 525mA Battery Pack Voltage: 4.2V Voltage - Supply (Max): 5.5V Operating Temperature: 0C ~ 70C (TA) Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Supplier Device Package: 10-MSOP-EP Base Part Number: LTC4080	13 Order	1+: $2.457 25+: $1.7416 100+: $1.4394
LTC1729CS8-4.1# TRPBF-ND	LTC1729CS8-4.1# TRPBF	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Battery Chemistry: Lithium-Ion Number of Cells: 1 Battery Pack Voltage: 4.1V Voltage - Supply (Max): 28V Operating Temperature: 0C ~ 70C (TA) Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC Base Part Number: LTC1729	1000 Order	2500+: $1.5423
LTC4120IUD-4.2# PBF-ND	LTC4120IUD-4.2# PBF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Lithium-Ion/Polymer Number of Cells: 1 Current - Charging: Constant - Programmable Charge Current - Max: 400mA Battery Pack Voltage: 4.2V Voltage - Supply (Max): 40V Operating Temperature: -40C ~ 125C (TJ) Package / Case: 16-WFQFN Exposed Pad Supplier Device Package: 16-QFN (3x3) Base Part Number: LTC4120	94 Order	1+: $5.166 25+: $3.4443 100+: $2.9238
LTC4089EDJC-1#P BF-ND	LTC4089EDJC-1#P BF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Lithium-Ion Number of Cells: 1 Current - Charging: Constant - Programmable Programmable Features: Timer Battery Pack Voltage: 4.1V Voltage - Supply (Max): 5.5V, 36V Interface: USB Operating Temperature: -40C ~ 85C (TA) Package / Case: 22-WFDFN Exposed Pad Supplier Device Package: 22-DFN (6x3) Base Part Number: LTC4089	1000 Order	244+: $2.2298
LM336Z-2.5#TRPB F-ND	LM336Z-2.5#TRPB F	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Reference Type: Shunt Output Type: Fixed Voltage - Output (Min/Fixed): 2.49V Current - Output: 15mA Tolerance: 0.48% Operating Temperature: 0C ~ 70C (TA) Mounting Type: Through Hole Package / Case: TO-226-3, TO-92-3 (TO-226AA) (Formed Leads) Supplier Device Package: TO-92-3 Base Part Number: LM336	1000 Order	2000+: $1.0346
LT1769CFE#PBF-N D	LT1769CFE#PBF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Multi-Chemistry Current - Charging: Constant - Programmable Fault Protection: Over Voltage Charge Current - Max: 2A Battery Pack Voltage: 20V (Max) Voltage - Supply (Max): 28V Operating Temperature: 0C ~ 70C (TA) Package / Case: 20-TSSOP (0.173", 4.40mm Width) Exposed Pad Supplier Device Package: 20-TSSOP-EP Base Part Number: LT1769	147 Order	1+: $6.7788 25+: $4.5027 100+: $3.3737
LTC4079IDD#PBF- ND	LTC4079IDD#PBF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Multi-Chemistry Current - Charging: Constant - Programmable Programmable Features: Timer Charge Current - Max: 250mA Voltage - Supply (Max): 60V Operating Temperature: -40C ~ 125C (TJ) Package / Case: 10-WFDFN Exposed Pad Supplier Device Package: 10-DFN (3x3) Base Part Number: LTC4079	41 Order	1+: $3.7107 25+: $2.4804 100+: $2.1077
LT1579CGN#TRPBF -ND	LT1579CGN#TRPBF	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Power Management Battery Chemistry: Multi-Chemistry Number of Cells: 1 Fault Protection: Over Current, Over Temperature, Reverse Battery, Reverse Current Operating Temperature: 0C ~ 125C (TJ) Package / Case: 16-SSOP (0.154", 3.90mm Width) Supplier Device Package: 16-SSOP Base Part Number: LT1579	1000 Order	2500+: $3.0845
LT1579CGN-5#TRP BF-ND	LT1579CGN-5#TRP BF	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Power Management Battery Chemistry: Multi-Chemistry Number of Cells: 1 Fault Protection: Over Current, Over Temperature, Reverse Battery, Reverse Current Operating Temperature: 0C ~ 125C (TJ) Package / Case: 16-SSOP (0.154", 3.90mm Width) Supplier Device Package: 16-SSOP Base Part Number: LT1579	1000 Order	2500+: $3.0845
LT1510IGN#PBF-N D	LT1510IGN#PBF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Multi-Chemistry Current - Charging: Constant - Programmable Fault Protection: Over Voltage Charge Current - Max: 1.5A Battery Pack Voltage: 20V (Max) Voltage - Supply (Max): 28V Operating Temperature: -40C ~ 85C (TA) Package / Case: 16-SSOP (0.154", 3.90mm Width) Supplier Device Package: 16-SSOP Base Part Number: LT1510	253 Order	1+: $6.0543 25+: $4.0202 100+: $3.213
LT1769IGN#PBF-N D	LT1769IGN#PBF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Multi-Chemistry Current - Charging: Constant - Programmable Fault Protection: Over Voltage Charge Current - Max: 2A Battery Pack Voltage: 20V (Max) Voltage - Supply (Max): 28V Operating Temperature: -40C ~ 85C (TA) Package / Case: 28-SSOP (0.154", 3.90mm Width) Supplier Device Package: 28-SSOP Base Part Number: LT1769	1000 Order	147+: $3.952
LT1579CS8-3.3#T RPBF-ND	LT1579CS8-3.3#T RPBF	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Function: Power Management Battery Chemistry: Multi-Chemistry Number of Cells: 1 Fault Protection: Over Current, Over Temperature, Reverse Battery, Reverse Current Operating Temperature: 0C ~ 125C (TJ) Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC Base Part Number: LT1579	1000 Order	--
LTC1732EMS-4#TR PBF-ND	LTC1732EMS-4#TR PBF	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Battery Chemistry: Multi-Chemistry Number of Cells: 1 Current - Charging: Constant - Programmable Programmable Features: Timer Charge Current - Max: 585mA Battery Pack Voltage: 4.2V Voltage - Supply (Max): 12V Operating Temperature: -40C ~ 85C (TA) Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Supplier Device Package: 10-MSOP Base Part Number: LTC1732	1000 Order	2500+: $1.5487
LT1579CGN-ND	LT1579CGN	Linear Technology/Analog Devices	View more Packaging: Tube Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant Part Status: Active Moisture Sensitivity Level (MSL): 1 (Unlimited) Function: Power Management Fault Protection: Over Current, Over Temperature, Reverse Battery, Reverse Current Operating Temperature: 0C ~ 125C (TJ) Package / Case: 16-SSOP (0.154", 3.90mm Width) Supplier Device Package: 16-SSOP Base Part Number: LT1579	72 Order	1+: $10.6533 25+: $7.0757
LTC1733EMSE#PBF -ND	LTC1733EMSE#PBF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Lithium-Ion Number of Cells: 1 Current - Charging: Constant - Programmable Programmable Features: Timer Fault Protection: Over Temperature Charge Current - Max: 1.5A Battery Pack Voltage: 4.2V Voltage - Supply (Max): 6.5V Operating Temperature: -40C ~ 85C (TA) Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Supplier Device Package: 10-MSOP-EP Base Part Number: LTC1733	2750 Order	--
LTC4008EGN#PBF- ND	LTC4008EGN#PBF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Multi-Chemistry Current - Charging: Constant - Programmable Voltage - Supply (Max): 28V Operating Temperature: -40C ~ 85C (TA) Package / Case: 20-SSOP (0.154", 3.90mm Width) Supplier Device Package: 20-SSOP Base Part Number: LTC4008	669 Order	--
LTC4121IUD#PBF- ND	LTC4121IUD#PBF	Linear Technology/Analog Devices	View more Packaging: Tube Part Status: Active Battery Chemistry: Multi-Chemistry Current - Charging: Constant - Programmable Charge Current - Max: 400mA Battery Pack Voltage: 18V (Max) Voltage - Supply (Max): 40V Operating Temperature: -40C ~ 125C (TJ) Package / Case: 16-WFQFN Exposed Pad Supplier Device Package: 16-QFN (3x3) Base Part Number: LTC4121	1000 Order	--
LT3650IDD-4.2#T RPBF-ND	LT3650IDD-4.2#T RPBF	Linear Technology/Analog Devices	View more Packaging: Tape & Reel (TR) Part Status: Active Battery Chemistry: Lithium-Ion/Polymer Number of Cells: 1 Current - Charging: Constant - Programmable Programmable Features: Timer Fault Protection: Over Temperature Charge Current - Max: 2A Battery Pack Voltage: 4.2V Voltage - Supply (Max): 32V Operating Temperature: -40C ~ 85C (TA) Package / Case: 12-WFDFN Exposed Pad Supplier Device Package: 12-DFN (3x3) Base Part Number: LT3650	1000 Order	2500+: $2.5768

< 246 247 248 249 250 >

Hot Searches: linear current sensor ic current sensor ic hall current sensor ic ac current sensor ic ic current sensor dc current sensor ic current sensor ic texas digital current sensor ic doorbell current sensor ic digital sensor linear ic switch sensor linear ic linear sensor ic hall linear sensor ic linear hall sensor ic current sensor ic voltage output smart sensor™ linear amplifier smart sensor™ linear audio current limit linear stabilizer reverse current linear stabilizer linear constant current ic chip

Search Result:linear current sensor ic

Related Categories