Call us: +86 0755-82563503

Currency: $ US Dollar

Items : %s%s

Single MOSFETs Transistors

Compare Image Name Manufacturer Pricing(USD) Quantity Weight(Kg) Size(LxWxH) Datasheet Factory Lead Time Lifecycle Status Mount 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 Lead Free Contact Plating Current Rating Radiation Hardening Number of Pins Additional Feature Package / Case REACH SVHC Reach Compliance Code Height Width Mounting Type Weight Operating Temperature Voltage - Rated DC Technology Operating Mode HTS Code JESD-609 Code Terminal Finish Terminal Position Terminal Form Peak Reflow Temperature (Cel) Time@Peak Reflow Temperature-Max (s) Base Part Number Pin Count Surface Mount JESD-30 Code Operating Temperature (Max) Number of Channels Subcategory Qualification Status Number of Elements Configuration JEDEC-95 Code Case Connection Halogen Free Element Configuration Power Dissipation Turn On Delay Time Threshold Voltage Max Dual Supply Voltage Supplier Device Package Power Dissipation-Max Continuous Drain Current (ID) Transistor Application Drain-source On Resistance-Max DS Breakdown Voltage-Min Turn-Off Delay Time Transistor Element Material FET Type Rds On (Max) @ Id, Vgs Vgs(th) (Max) @ Id Input Capacitance (Ciss) (Max) @ Vds Gate Charge (Qg) (Max) @ Vgs Rise Time Fall Time (Typ) Gate to Source Voltage (Vgs) Drain to Source Breakdown Voltage FET Feature Nominal Vgs Drain Current-Max (Abs) (ID) Current - Continuous Drain (Id) @ 25°C Drain to Source Voltage (Vdss) Pulsed Drain Current-Max (IDM) Avalanche Energy Rating (Eas) Input Capacitance Drive Voltage (Max Rds On,Min Rds On) Vgs (Max) Rds On Max
AUIRFS3107-7P AUIRFS3107-7P Infineon Technologies 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tube 2010 HEXFET® Discontinued 1 (Unlimited) 6 EAR99 10.67mm ROHS3 Compliant Tin No 7 ULTRA LOW RESISTANCE TO-263-7, D2Pak (6 Leads + Tab) 4.83mm 9.65mm Surface Mount -55°C~175°C TJ MOSFET (Metal Oxide) ENHANCEMENT MODE e3 GULL WING R-PSSO-G6 1 TO-263CB DRAIN Single 370W 17 ns 370W Tc 240A SWITCHING 0.0026Ohm 100 ns SILICON N-Channel 2.6m Ω @ 160A, 10V 4V @ 250μA 9200pF @ 50V 240nC @ 10V 80ns 64 ns 20V 75V 240A Tc 320 mJ 10V ±20V
BUZ31 E3045A BUZ31 E3045A Infineon Technologies 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tape & Reel (TR) 2005 SIPMOS® Obsolete 1 (Unlimited) Non-RoHS Compliant TO-263-3, D2Pak (2 Leads + Tab), TO-263AB Surface Mount -55°C~150°C TJ MOSFET (Metal Oxide) D2PAK (TO-263AB) 95W Tc N-Channel 200mOhm @ 9A, 5V 4V @ 1mA 1120pF @ 25V 14.5A Tc 200V 10V ±20V
MKE38RK600DFEL-TUB MKE38RK600DFEL-TUB IXYS 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tray CoolMOS™ Active 1 (Unlimited) ROHS3 Compliant 9-SMD Module Surface Mount -55°C~150°C TJ MOSFET (Metal Oxide) N-Channel 45m Ω @ 44A, 10V 3.5V @ 3mA 6800pF @ 100V 190nC @ 10V 50A Tc 600V 10V ±20V
AOT4N60 AOT4N60 Alpha & Omega Semiconductor Inc. 5.1366
Add to Cart

Min: 1

Mult: 1

0.00000000 18 Weeks Through Hole Tube 2010 Active 1 (Unlimited) 150°C -55°C ROHS3 Compliant TO-220-3 Through Hole -55°C~150°C TJ MOSFET (Metal Oxide) 1 104W TO-220 104W Tc 4A N-Channel 2.2Ohm @ 2A, 10V 4.5V @ 250μA 615pF @ 25V 18nC @ 10V 30V 4A Tc 600V 615pF 10V ±30V 2.2 Ω
BUK753R1-40B,127 BUK753R1-40B,127 NXP USA Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 Tube 2000 TrenchMOS™ Obsolete 1 (Unlimited) 3 EAR99 ROHS3 Compliant TO-220-3 Through Hole -55°C~175°C TJ MOSFET (Metal Oxide) ENHANCEMENT MODE 8541.29.00.75 e3 Tin (Sn) SINGLE NOT SPECIFIED NOT SPECIFIED 3 NO R-PSFM-T3 FET General Purpose Power Not Qualified 1 SINGLE WITH BUILT-IN DIODE TO-220AB DRAIN 300W Tc SWITCHING 0.0031Ohm 40V SILICON N-Channel 3.1m Ω @ 25A, 10V 4V @ 1mA 6808pF @ 25V 94nC @ 10V 75A 75A Tc 40V 902A 1600 mJ 10V ±20V
TSM042N03CS RLG TSM042N03CS RLG Taiwan Semiconductor Corporation 0.1508
Add to Cart

Min: 1

Mult: 1

0.00000000 download 20 Weeks Digi-Reel® Active 3 (168 Hours) ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) Surface Mount 175°C TJ MOSFET (Metal Oxide) 7W Tc N-Channel 4.2m Ω @ 12A, 10V 2.5V @ 250μA 2200pF @ 25V 24nC @ 4.5V 30A Tc 30V 4.5V 10V ±20V
FDI025N06 FDI025N06 Rochester Electronics, LLC 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube PowerTrench® yes Obsolete 1 (Unlimited) 3 ROHS3 Compliant TO-262-3 Long Leads, I2Pak, TO-262AA Through Hole -55°C~175°C TJ MOSFET (Metal Oxide) ENHANCEMENT MODE e3 MATTE TIN SINGLE NOT SPECIFIED NOT SPECIFIED 3 NO R-PSIP-T3 COMMERCIAL 1 SINGLE WITH BUILT-IN DIODE 395W Tc SWITCHING 0.0025Ohm 60V SILICON N-Channel 2.5m Ω @ 75A, 10V 4.5V @ 250μA 14.885pF @ 25V 226nC @ 10V 120A 265A Tc 60V 1060A 2531 mJ 10V ±20V
STWA40N95DK5 STWA40N95DK5 STMicroelectronics 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 17 Weeks ACTIVE (Last Updated: 8 months ago) Tube MDmesh™ DK5 Active 1 (Unlimited) ROHS3 Compliant TO-247-3 Through Hole -55°C~150°C MOSFET (Metal Oxide) STWA40 450W Tc N-Channel 130m Ω @ 19A, 10V 5V @ 100μA 3480pF @ 100V 100nC @ 10V 38A Tc 950V 10V ±30V
IPC60R520E6UNSAWNX6SA1 IPC60R520E6UNSAWNX6SA1 Infineon Technologies 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 Obsolete 1 (Unlimited)
IRLZ24LPBF IRLZ24LPBF Vishay Siliconix 3.9682
Add to Cart

Min: 1

Mult: 1

0.00000000 download 8 Weeks Through Hole Tube 2016 yes Active 1 (Unlimited) 3 EAR99 10.41mm ROHS3 Compliant No 3 LOGIC LEVEL COMPATIBLE TO-262-3 Long Leads, I2Pak, TO-262AA Unknown 9.01mm 4.7mm Through Hole 6.000006g -55°C~175°C TJ MOSFET (Metal Oxide) ENHANCEMENT MODE 260 40 3 1 FET General Purpose Power 1 DRAIN Single 11 ns 3.7W Ta 60W Tc 17A SWITCHING 23 ns SILICON N-Channel 100m Ω @ 10A, 5V 2V @ 250μA 870pF @ 25V 18nC @ 5V 110ns 41 ns 10V 60V 17A Tc 68A 4V 5V ±10V
IPB65R600C6ATMA1 IPB65R600C6ATMA1 Infineon Technologies 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tape & Reel (TR) 2008 CoolMOS™ no Obsolete 1 (Unlimited) 2 RoHS Compliant TO-263-3, D2Pak (2 Leads + Tab), TO-263AB not_compliant Surface Mount -55°C~150°C TJ MOSFET (Metal Oxide) ENHANCEMENT MODE e3 Tin (Sn) SINGLE GULL WING NOT SPECIFIED NOT SPECIFIED 4 YES R-PSSO-G2 Not Qualified 1 SINGLE WITH BUILT-IN DIODE DRAIN 63W Tc SWITCHING 0.6Ohm 650V SILICON N-Channel 600m Ω @ 2.1A, 10V 3.5V @ 210μA 440pF @ 100V 23nC @ 10V 7.3A Tc 650V 18A 142 mJ 10V ±20V
APT20M18B2VRG APT20M18B2VRG Microsemi Corporation 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download IN PRODUCTION (Last Updated: 3 weeks ago) Through Hole Tube 1997 POWER MOS V® Active 1 (Unlimited) 150°C -55°C RoHS Compliant Lead Free 100A No 3 TO-247-3 Variant Through Hole 200V MOSFET (Metal Oxide) 1 625W 18 ns T-MAX™ [B2] 100A 55 ns N-Channel 18mOhm @ 50A, 10V 4V @ 2.5mA 9880pF @ 25V 330nC @ 10V 27ns 6 ns 30V 100A Tc 200V 9.88nF
SUP75P05-08-E3 SUP75P05-08-E3 Vishay Siliconix 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Tube TrenchFET® yes Obsolete 1 (Unlimited) 3 EAR99 10.41mm ROHS3 Compliant 3 TO-220-3 No SVHC 9.01mm 4.7mm Through Hole -55°C~175°C TJ MOSFET (Metal Oxide) ENHANCEMENT MODE e3 Matte Tin (Sn) - with Nickel (Ni) barrier 260 30 3 Other Transistors Not Qualified 1 TO-220AB DRAIN Single 250W 13 ns -2V 3.7W Ta 250W Tc -75A 0.008Ohm 115 ns SILICON P-Channel 8m Ω @ 30A, 10V 3V @ 250μA 8500pF @ 25V 225nC @ 10V 140ns 175 ns 20V 30V -2 V 75A Tc 55V 240A 4.5V 10V ±20V
RJK1055DPB-WS#J5 RJK1055DPB-WS#J5 Renesas Electronics America 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Obsolete
FDD390N15A FDD390N15A ON Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks ACTIVE (Last Updated: 4 hours ago) Surface Mount Cut Tape (CT) 2010 PowerTrench® yes Active 1 (Unlimited) 2 EAR99 6.73mm ROHS3 Compliant Lead Free 2 ULTRA-LOW RESISTANCE TO-252-3, DPak (2 Leads + Tab), SC-63 not_compliant 2.39mm 6.22mm Surface Mount 260.37mg -55°C~150°C TJ MOSFET (Metal Oxide) ENHANCEMENT MODE e3 Tin (Sn) GULL WING NOT SPECIFIED NOT SPECIFIED FET General Purpose Power 1 DRAIN Single 63W 14 ns 63W Tc 26A SWITCHING 0.04Ohm 20 ns SILICON N-Channel 40m Ω @ 26A, 10V 4V @ 250μA 1285pF @ 75V 18.6nC @ 10V 10ns 5 ns 20V 150V 26A Tc 78 mJ 10V ±20V
STI6N95K5 STI6N95K5 STMicroelectronics 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 17 Weeks ACTIVE (Last Updated: 8 months ago) Tube MDmesh™ Active 1 (Unlimited) ROHS3 Compliant TO-262-3 Long Leads, I2Pak, TO-262AA Through Hole NOT SPECIFIED NOT SPECIFIED STI6N
SIJA52DP-T1-GE3 SIJA52DP-T1-GE3 Vishay Siliconix 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 14 Weeks Surface Mount Tape & Reel (TR) 2017 TrenchFET® Active 1 (Unlimited) EAR99 ROHS3 Compliant PowerPAK® SO-8 unknown Surface Mount -55°C~150°C TJ MOSFET (Metal Oxide) NOT SPECIFIED NOT SPECIFIED 48W Tc 60A N-Channel 1.7m Ω @ 15A, 10V 2.4V @ 250μA 7150pF @ 20V 150nC @ 20V 60A Tc 40V 4.5V 10V +20V, -16V
IRF7204 IRF7204 Infineon Technologies 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube 1997 HEXFET® Obsolete 1 (Unlimited) 8 EAR99 Non-RoHS Compliant LOGIC LEVEL COMPATIBLE 8-SOIC (0.154, 3.90mm Width) Surface Mount -55°C~150°C TJ MOSFET (Metal Oxide) ENHANCEMENT MODE 8541.29.00.95 e0 Tin/Lead (Sn/Pb) DUAL GULL WING 245 30 YES R-PDSO-G8 Not Qualified 1 SINGLE WITH BUILT-IN DIODE 2.5W Tc SWITCHING 0.06Ohm 20V SILICON P-Channel 60m Ω @ 5.3A, 10V 2.5V @ 250μA 860pF @ 10V 25nC @ 10V 5.3A 5.3A Ta 20V 4.5V 10V ±12V
IXTQ450P2 IXTQ450P2 IXYS 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 24 Weeks Through Hole Tube 2011 PolarP2™ yes Active 1 (Unlimited) 3 ROHS3 Compliant AVALANCHE RATED TO-3P-3, SC-65-3 unknown Through Hole -55°C~150°C TJ MOSFET (Metal Oxide) ENHANCEMENT MODE e3 PURE TIN NOT SPECIFIED NOT SPECIFIED 3 R-PSFM-T3 FET General Purpose Power Not Qualified 1 DRAIN Single 300W 300W Tc 16A SWITCHING 0.33Ohm SILICON N-Channel 330m Ω @ 8A, 10V 4.5V @ 250μA 2530pF @ 25V 43nC @ 10V 30V 500V 16A Tc 35A 750 mJ 10V ±30V
XP202A0003PR-G XP202A0003PR-G Torex Semiconductor Ltd 0.7277
Add to Cart

Min: 1

Mult: 1

0.00000000 download 10 Weeks Surface Mount Tape & Reel (TR) 2014 Active 1 (Unlimited) EAR99 ROHS3 Compliant No 4 TO-243AA Surface Mount 150°C MOSFET (Metal Oxide) 7 ns 1.5W 5A 31 ns P-Channel 59m Ω @ 3A, 10V 2.6V @ 1mA 450pF @ 10V 8ns 6 ns 20V 30V 4V 10V ±20V
AOTF10T60 AOTF10T60 Alpha & Omega Semiconductor Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Tube 2009 Obsolete 1 (Unlimited) RoHS Compliant TO-220-3 Full Pack Through Hole -55°C~150°C TJ MOSFET (Metal Oxide) ENHANCEMENT MODE FET General Purpose Power Single 43W Tc 10A N-Channel 700m Ω @ 5A, 10V 5V @ 250μA 1346pF @ 100V 35nC @ 10V 10A Tc 600V 10V ±30V
IPP80N08S207AKSA1 IPP80N08S207AKSA1 Infineon Technologies 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Tube 2006 OptiMOS™ Not For New Designs 1 (Unlimited) 3 EAR99 ROHS3 Compliant Contains Lead 3 TO-220-3 not_compliant Through Hole -55°C~175°C TJ MOSFET (Metal Oxide) ENHANCEMENT MODE e3 Tin (Sn) SINGLE NOT SPECIFIED NOT SPECIFIED 1 SINGLE WITH BUILT-IN DIODE TO-220AB Halogen Free 26 ns 75V 300W Tc 80A 0.0074Ohm 61 ns SILICON N-Channel 7.4m Ω @ 80A, 10V 4V @ 250μA 4700pF @ 25V 180nC @ 10V 50ns 30 ns 20V 80A Tc 810 mJ 10V ±20V
SI2334DS-T1-GE3 SI2334DS-T1-GE3 Vishay Siliconix 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 15 Weeks Surface Mount Tape & Reel (TR) 2011 TrenchFET® yes Obsolete 1 (Unlimited) 3 EAR99 ROHS3 Compliant No 3 TO-236-3, SC-59, SOT-23-3 No SVHC Surface Mount -55°C~150°C TJ MOSFET (Metal Oxide) ENHANCEMENT MODE e3 Matte Tin (Sn) DUAL GULL WING 260 30 3 FET General Purpose Powers 1 SINGLE WITH BUILT-IN DIODE 1.3W 400mV 1.3W Ta 1.7W Tc 4.9A SWITCHING 0.044Ohm SILICON N-Channel 44m Ω @ 4.2A, 4.5V 1V @ 250μA 634pF @ 15V 10nC @ 4.5V 10ns 8 ns 8V 400 mV 4.9A Tc 30V 2.5V 4.5V ±8V
AON6502 AON6502 Alpha & Omega Semiconductor Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks Surface Mount Tape & Reel (TR) 2011 Not For New Designs 1 (Unlimited) ROHS3 Compliant 8-PowerSMD, Flat Leads Surface Mount -55°C~150°C TJ MOSFET (Metal Oxide) 7.4W Ta 83W Tc 85A N-Channel 2.2m Ω @ 20A, 10V 2V @ 250μA 3430pF @ 15V 64nC @ 10V 49A Ta 85A Tc 30V 4.5V 10V ±20V
IRLML5203 IRLML5203 Infineon Technologies 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 Tube 2003 HEXFET® Obsolete 1 (Unlimited) 3 EAR99 Non-RoHS Compliant TO-236-3, SC-59, SOT-23-3 Surface Mount MOSFET (Metal Oxide) ENHANCEMENT MODE e3 Matte Tin (Sn) DUAL GULL WING NOT SPECIFIED NOT SPECIFIED YES R-PDSO-G3 150°C Other Transistors Not Qualified 1 SINGLE WITH BUILT-IN DIODE 1.25W Ta SWITCHING 0.098Ohm 30V SILICON P-Channel 98m Ω @ 3A, 10V 2.5V @ 250μA 510pF @ 25V 14nC @ 10V 3A 3A Ta 30V 24A 4.5V 10V ±20V
DMP2075UVT-13 DMP2075UVT-13 Diodes Incorporated 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 21 Weeks Tape & Reel (TR) Active 1 (Unlimited) ROHS3 Compliant SOT-23-6 Thin, TSOT-23-6 Surface Mount -55°C~150°C TJ MOSFET (Metal Oxide) e3 Matte Tin (Sn) 1.2W Ta P-Channel 75m Ω @ 4A, 4.5V 1V @ 250μA 642pF @ 10V 8.8nC @ 4.5V 3.8A Ta 20V 2.5V 4.5V ±8V
IXTP02N50D IXTP02N50D IXYS / Littelfuse 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 24 Weeks Through Hole Tube 2006 yes Active 1 (Unlimited) 3 EAR99 ROHS3 Compliant Lead Free TO-220-3 Through Hole -55°C~150°C TJ MOSFET (Metal Oxide) 8541.29.00.95 e3 Matte Tin (Sn) NOT SPECIFIED NOT SPECIFIED 3 R-PSFM-T3 Not Qualified 1 TO-220AD DRAIN Single 25W 1.1W Ta 25W Tc 200mA SWITCHING 28 ns SILICON N-Channel 30 Ω @ 50mA, 0V 5V @ 25μA 120pF @ 25V 20V 500V Depletion Mode 0.2A 200mA Tc 0.8A 10V ±20V
UF3C065040K4S UF3C065040K4S UnitedSiC 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 12 Weeks Tube Active Not Applicable ROHS3 Compliant TO-247-4 Through Hole -55°C~175°C TJ SiCFET (Cascode SiCJFET) 326W Tc N-Channel 52m Ω @ 40A, 12V 6V @ 10mA 1500pF @ 100V 43nC @ 12V 54A Tc 650V 12V ±25V
FQP2N40 FQP2N40 ON Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube 2000 QFET® yes Obsolete 1 (Unlimited) 3 TO-220-3 compliant Through Hole -55°C~150°C TJ MOSFET (Metal Oxide) ENHANCEMENT MODE e3 Tin (Sn) SINGLE NOT SPECIFIED NOT SPECIFIED NO R-PSFM-T3 FET General Purpose Power 1 SINGLE WITH BUILT-IN DIODE TO-220AB 40W Tc SWITCHING 400V SILICON N-Channel 5.8 Ω @ 900mA, 10V 5V @ 250μA 150pF @ 25V 5.5nC @ 10V 1.8A 1.8A Tc 400V 7.2A 85 mJ 10V ±30V
SI4491EDY-T1-GE3 SI4491EDY-T1-GE3 Vishay Siliconix 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 14 Weeks Surface Mount Tape & Reel (TR) 2017 TrenchFET® Active 1 (Unlimited) 8 EAR99 ROHS3 Compliant No 8 8-SOIC (0.154, 3.90mm Width) Surface Mount -55°C~150°C TJ MOSFET (Metal Oxide) ENHANCEMENT MODE DUAL GULL WING 1 SINGLE WITH BUILT-IN DIODE MS-012AA 3.1W Ta 6.9W Tc 17.3A SWITCHING 0.0065Ohm 30V SILICON P-Channel 6.5m Ω @ 13A, 10V 2.8V @ 250μA 4620pF @ 15V 153nC @ 10V 25V 17.3A Ta 30V 4.5V 10V ±25V
Settings Need Help?
Top FAQ's

How can I quickly find answers to my questions?

Please visit the Help & Support area of our website to find information regarding ordering, shipping, delivery and more.

What is my Order Status?

Registered users can track orders from their account dropdown, or click here. *Order Status may take 12 hours to update after initial order is placed.

How do I return product?

Users can begin the returns process by starting with our Returns Page.

How do I find price and availability?

Quotes can be created by registered users in myLists.

How do I create a 'HK JDW' Account?

Visit the Registration Page and enter the required information. You will receive an email confirmation when your registration is complete.

United Kingdom/GBP Summary
Fast Shipping Fast Delivery

Orders are typically delivered to United Kingdom within 48 hours depending on location.

Free Shipping Free Shipping

Free delivery to United Kingdom on orders of £33 or more. A delivery charge of £12 will be billed on all orders less than £33.

Incoterms Incoterms

DDP (Duty and customs paid by HK JDW)

Payment Options Payment Types

Credit account for qualified institutions and businesses

Payment in Advance by Wire Transfer

Visa Mastercard American Express PayPal Apple Pay Google Pay

Marketplace Marketplace Product

More Products From Fully Authorized Partners

Average Time to Ship 1-3 Days, extra ship charges may apply. Please see product page, cart, and checkout for actual ship speed.

Incoterms: CPT (Duty, customs, and applicable VAT/Tax due at time of delivery)

For more information visit Help & Support