Call us: +86 0755-82563503

Currency: $ US Dollar

Items : %s%s

Gates & Inverters

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 Termination ECCN Code Operating Supply Voltage Length RoHS Status Lead Free Contact Plating Radiation Hardening Number of Pins Package / Case REACH SVHC Reach Compliance Code Height Width Thickness Mounting Type Weight Operating Temperature Technology Input Type Height Seated (Max) HTS Code Packing Method Number of Functions JESD-609 Code Terminal Finish Terminal Position Terminal Form Peak Reflow Temperature (Cel) Supply Voltage Time@Peak Reflow Temperature-Max (s) Base Part Number Pin Count Output Type Surface Mount Terminal Pitch JESD-30 Code Supply Voltage-Min (Vsup) Subcategory Qualification Status Power Supplies Supply Voltage-Max (Vsup) Number of Elements Number of Outputs Output Current Feature Max Output Current Number of Circuits Load Capacitance Propagation Delay Turn On Delay Time Supplier Device Package Output Characteristics Propagation Delay (tpd) Quiescent Current Logic Function Number of Inputs Number of Bits Voltage - Supply Family Max I(ol) Power Supply Current-Max (ICC) Prop. Delay@Nom-Sup Current - Quiescent (Max) Current - Output High, Low Logic Type Schmitt Trigger Number of Gates Max Propagation Delay @ V, Max CL Logic Level - Low Logic Level - High HTS Lead Shape Maximum Operating Temperature (°C) Minimum Operating Temperature (°C) Mounting PCB changed Standard Package Name Supplier Package Typical Operating Supply Voltage (V) Maximum Operating Supply Voltage (V) Minimum Operating Supply Voltage (V) ECCN (US) Supplier Temperature Grade Number of Elements per Chip Process Technology Logic Family Number of Element Inputs Number of Element Outputs Maximum Propagation Delay Time @ Maximum CL (ns) Absolute Propagation Delay Time (ns) Maximum Low Level Output Current (mA) Maximum High Level Output Current (mA) Maximum Quiescent Current (uA) Propagation Delay Test Condition (pF)
SN74AS10D SN74AS10D Texas Instruments 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 6 Weeks ACTIVE (Last Updated: 3 days ago) Surface Mount Tube 74AS yes Active 1 (Unlimited) 14 SMD/SMT 5V 8.65mm ROHS3 Compliant Lead Free No 14 14-SOIC (0.154, 3.90mm Width) No SVHC 1.75mm 3.91mm 1.58mm Surface Mount 129.387224mg 0°C~70°C TTL 3 e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL GULL WING 260 5V 74AS10 14 Gates 5V 3 1 8mA 20mA 50pF 4.5 ns 4.5 ns NAND 4.5V~5.5V AS 0.02 A 2mA 20mA NAND Gate NO 4.5ns @ 5V, 50pF 0.8V 2V
74V1T14STR 74V1T14STR STMicroelectronics 0.1569
Add to Cart

Min: 1

Mult: 1

0.00000000 download Surface Mount Tape & Reel (TR) 74V yes Obsolete 1 (Unlimited) 5 5V 2.9mm ROHS3 Compliant Lead Free Gold No 5 SC-74A, SOT-753 Surface Mount -55°C~125°C CMOS TAPE AND REEL 1 e3 Matte Tin (Sn) - annealed DUAL GULL WING 260 5V 30 74V1T14 5 Gates 5V Schmitt Trigger 11.5 ns 11.5 ns 1μA Buffer, Inverter, Schmitt Trigger 4.5V~5.5V 74V 0.008 A 8mA 8mA Inverter YES 1 8.5ns @ 5V, 50pF 0.5V ~ 0.6V 2V
74LCX86MTR 74LCX86MTR STMicroelectronics 20.3553
Add to Cart

Min: 1

Mult: 1

0.00000000 download Surface Mount Tape & Reel (TR) 74LCX yes Obsolete 1 (Unlimited) 14 8.65mm ROHS3 Compliant Lead Free Gold 14 14-SOIC (0.154, 3.90mm Width) 3.9mm Surface Mount -40°C~85°C CMOS TR 4 e4 DUAL GULL WING 260 2.7V 30 74LCX86 14 2V Gates Not Qualified 3.3V 3.6V 1 50pF 6.5 ns 6.5 ns 10μA OR, XOR 2 2V~3.6V LVC/LCX/Z 24mA 24mA XOR (Exclusive OR) NO 4 6.5ns @ 3.3V, 50pF 0.8V 2V
SN74LVC1G02DBVT SN74LVC1G02DBVT Texas Instruments 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 6 Weeks ACTIVE (Last Updated: 3 days ago) Surface Mount Tape & Reel (TR) 74LVC yes Active 1 (Unlimited) 5 SMD/SMT EAR99 2.9mm ROHS3 Compliant Lead Free No 5 SC-74A, SOT-753 No SVHC 1.45mm 1.6mm 1.2mm Surface Mount 15.790684mg -40°C~125°C CMOS TR 1 e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL GULL WING 260 3.3V 74LVC1G02 5 Gates 3.3V 1 32mA 32mA 4 ns 4.5 ns 3-STATE 10μA NOR 2 1.65V~5.5V LVC/LCX/Z 32mA 32mA NOR Gate NO 4.5ns @ 5V, 50pF 0.7V ~ 0.8V 1.7V ~ 2V
TC7SH86F(TE85L) TC7SH86F(TE85L) Toshiba 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tape and Reel Obsolete RoHS Compliant 5 XOR
74VCX86M 74VCX86M Rochester Electronics, LLC 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube 74VCX Obsolete 1 (Unlimited) ROHS3 Compliant 14-SOIC (0.154, 3.90mm Width) Surface Mount -40°C~85°C 4 14-SOIC 2 1.2V~3.6V 20μA 24mA 24mA XOR (Exclusive OR) 3ns @ 3.3V, 30pF 0.7V ~ 0.8V 1.6V ~ 2V
SN74AC00PW SN74AC00PW Texas Instruments 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 6 Weeks ACTIVE (Last Updated: 5 days ago) Surface Mount Tube 74AC yes Active 1 (Unlimited) 14 SMD/SMT EAR99 5mm ROHS3 Compliant Lead Free No 14 14-TSSOP (0.173, 4.40mm Width) No SVHC 1.2mm 4.4mm 1mm Surface Mount 57.209338mg -40°C~85°C CMOS 4 e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL GULL WING 260 3.3V 74AC00 14 2V Gates 3.3/5V 6V 4 1 24mA 24mA 50pF 8.5 ns 8.5 ns 2μA NAND 2 2V~6V AC 24mA 24mA NAND Gate NO 8ns @ 5V, 50pF 0.9V ~ 1.65V 2.1V ~ 3.85V
SN74AUC1G32DBVR SN74AUC1G32DBVR Texas Instruments 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 6 Weeks ACTIVE (Last Updated: 4 days ago) Surface Mount Cut Tape (CT) 74AUC yes Active 1 (Unlimited) 5 EAR99 2.9mm ROHS3 Compliant Lead Free No 5 SC-74A, SOT-753 1.45mm 1.6mm 1.2mm Surface Mount 11.198062mg -40°C~85°C CMOS TR 1 e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL GULL WING 260 1.2V 74AUC1G32 5 0.8V Gates 1 2.1 ns 2.4 ns 10μA OR 2 0.8V~2.7V AUC 0.009 A 9mA 9mA OR Gate NO 2.1ns @ 2.5V, 30pF 0V ~ 0.7V 1.7V
N74F3037N,602 N74F3037N,602 NXP USA Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube 1999 74F Obsolete 1 (Unlimited) 16 ROHS3 Compliant 16-DIP (0.300, 7.62mm) Through Hole 0°C~70°C TTL 4 e4 NICKEL PALLADIUM GOLD DUAL 260 5V 30 74F3037 16 NO R-PDIP-T16 Gates Not Qualified 5V 5.5V 4 50pF 5.5 ns 2 4.5V~5.5V F/FAST 0.16 A 5.5 ns 67mA 160mA NAND Gate NO 5ns @ 5V, 50pF 0.8V 2.4V
M38510/75101B2A M38510/75101B2A Teledyne e2v 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Active Supplier Unconfirmed 14 NOR 8542.39.00.01 Flat 125 -55 Surface Mount 14 FPAK FPAK 3.3|2.5|5 6 2 3A001.a.1.c Military 4 CMOS AC 2-IN 1 [email protected]|7.5@5V 9 24 -24 40 50
CD4001UBPW CD4001UBPW Texas Instruments 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 6 Weeks ACTIVE (Last Updated: 4 days ago) Surface Mount Tube 4000B yes Active 1 (Unlimited) 14 SMD/SMT 5mm ROHS3 Compliant Lead Free Gold No 14 14-TSSOP (0.173, 4.40mm Width) No SVHC 1.2mm 4.4mm 1mm Surface Mount 57.209338mg -55°C~125°C CMOS 4 e4 DUAL GULL WING 260 5V CD4001 14 3V Gates 4 1 6.8mA 6.8mA 50pF 50 ns 60 ns 5μA NOR 2 3V~18V 0.0068 A 0.03mA 1μA 3.4mA 3.4mA NOR Gate NO 50ns @ 15V, 50pF 1V ~ 2.5V 4V ~ 12.5V
SN74ALS10ADR SN74ALS10ADR Texas Instruments 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 6 Weeks ACTIVE (Last Updated: 2 days ago) Surface Mount Cut Tape (CT) 74ALS yes Active 1 (Unlimited) 14 EAR99 5V 8.65mm ROHS3 Compliant Lead Free 14 14-SOIC (0.154, 3.90mm Width) 1.75mm 3.91mm 1.58mm Surface Mount 129.387224mg 0°C~70°C TTL TR 3 e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL GULL WING 260 5V NOT SPECIFIED 74ALS10 14 Gates Not Qualified 5V 3 1 8mA 50pF 11 ns 11 ns 1.2mA NAND 4.5V~5.5V ALS 0.008 A 2.2mA 400μA 8mA NAND Gate NO 11ns @ 5V, 50pF 0.8V 2V
74VHC03FT(BE) 74VHC03FT(BE) Toshiba 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tape and Reel Active RoHS Compliant 14 Open Drain NAND
SN74LVC32APWRG4 SN74LVC32APWRG4 Texas Instruments 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 6 Weeks ACTIVE (Last Updated: 4 days ago) Surface Mount Tape & Reel (TR) 74LVC yes Active 1 (Unlimited) 14 EAR99 5mm ROHS3 Compliant Lead Free Gold No 14 14-TSSOP (0.173, 4.40mm Width) No SVHC 1.2mm 4.4mm 1mm Surface Mount 57.209338mg -40°C~125°C CMOS TR 4 e4 DUAL GULL WING 260 1.8V 74LVC32 14 Gates 3.3V 3.6V 4 1 24mA 50pF 3.6 ns 3.8 ns 1μA OR 2 1.65V~3.6V LVC/LCX/Z 5 ns 24mA 24mA OR Gate NO 3.6ns @ 3.3V, 50pF 0.7V ~ 0.8V 1.7V ~ 2V
74ACT11004PWR 74ACT11004PWR Texas Instruments 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tape & Reel (TR) 74ACT yes Obsolete 1 (Unlimited) 20 5V ROHS3 Compliant Lead Free 20 20-TSSOP (0.173, 4.40mm Width) unknown 4.4mm Surface Mount 76.997305mg -40°C~85°C CMOS 1.2mm 8542.39.00.01 TAPE AND REEL 6 DUAL GULL WING NOT SPECIFIED 5V NOT SPECIFIED 74ACT11004 20 Gates Not Qualified 5V 24mA 50pF 9 ns 9.7 ns 4μA Buffer, Inverter 4.5V~5.5V ACT 0.024 A 24mA 24mA Inverter NO 6 9ns @ 5V, 50pF 0.8V 2V
74LVC1G11GW 74LVC1G11GW NXP Semiconductors 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Active RoHS Compliant 6 AND
SN74AUP2G08DCUR SN74AUP2G08DCUR Texas Instruments 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 6 Weeks ACTIVE (Last Updated: 5 days ago) Surface Mount Tape & Reel (TR) 74AUP yes Active 1 (Unlimited) 8 EAR99 2.3mm ROHS3 Compliant Lead Free Gold No 8 8-VFSOP (0.091, 2.30mm Width) No SVHC 900μm 2mm 850μm Surface Mount -40°C~85°C CMOS TR 2 e4 DUAL GULL WING 260 3V 74AUP2G08 8 0.5mm Gates 3.6V 2 1 4mA 30pF 6.7 ns 27 ns 3-STATE 500nA AND 0.8V~3.6V AUP/ULP/V 0.004 A 0.0009mA 4mA 4mA AND Gate NO 6.7ns @ 3.3V, 30pF 0.7V ~ 0.9V 1.6V ~ 2V
SN74LV14APWT SN74LV14APWT Texas Instruments 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 6 Weeks ACTIVE (Last Updated: 5 days ago) Surface Mount Tape & Reel (TR) 74LV yes Active 1 (Unlimited) 14 SMD/SMT 5V 5mm ROHS3 Compliant Lead Free 14 14-TSSOP (0.173, 4.40mm Width) No SVHC 1.2mm 4.4mm 1mm Surface Mount 57.209338mg -40°C~125°C CMOS 8542.39.00.01 TR 6 e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL GULL WING 260 2.5V NOT SPECIFIED 74LV14 14 2V Gates Not Qualified 3.3V 6 12mA Schmitt Trigger 12mA 50pF 10.6 ns 27 ns 20μA Buffer, Inverter, Schmitt Trigger 2V~5.5V LV/LV-A/LVX/H 0.012 A 0.02mA 18.5 ns 12mA 12mA Inverter YES 10.6ns @ 5V, 50pF 0.75V ~ 1.5V 1.75V ~ 3.5V
N74F20N,602 N74F20N,602 NXP USA Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube 1999 74F Obsolete 1 (Unlimited) 14 ROHS3 Compliant 14-DIP (0.300, 7.62mm) unknown Through Hole 0°C~70°C TTL 2 e4 NICKEL PALLADIUM GOLD DUAL 260 5V 30 74F20 14 NO Gates Not Qualified 5V 5.5V 2 50pF 5.3 ns 4 4.5V~5.5V F/FAST 5.1mA 6 ns 1mA 20mA NAND Gate NO 5ns @ 5V, 50pF 0.8V 2V
CD74HC11E CD74HC11E Rochester Electronics 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube 74HC Obsolete 3 (168 Hours) 14 Non-RoHS Compliant 14-DIP (0.300, 7.62mm) Through Hole -55°C~125°C CMOS 3 DUAL 5V 14 NO R-PDIP-T14 2V 6V 3 125 ns 3 2V~6V HC/UH 2μA 5.2mA 5.2mA AND Gate 17ns @ 6V, 50pF 0.5V ~ 1.8V 1.5V ~ 4.2V
74AUP1G98GW 74AUP1G98GW Nexperia 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Active RoHS Compliant Schmitt Trigger 6 Multi Function
SN74LVC86ANS SN74LVC86ANS Texas Instruments 0.6348
Add to Cart

Min: 1

Mult: 1

0.00000000 6 Weeks Tube 74LVC yes Active 1 (Unlimited) 14 EAR99 10.3mm RoHS Compliant Lead Free 14-SOIC (0.209, 5.30mm Width) 5.3mm Surface Mount -40°C~125°C CMOS TR 4 e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL GULL WING 260 1.8V NOT SPECIFIED 74LVC86 14 YES 1.65V Gates Not Qualified 3.3V 3.6V 4 50pF XOR 2 1.65V~3.6V LVC/LCX/Z 0.01mA 1μA 24mA 24mA XOR (Exclusive OR) NO 4.4ns @ 3.3V, 50pF 0.1V ~ 0.55V 1.45V ~ 2.3V
SN74LV1T00DBVR SN74LV1T00DBVR Texas Instruments 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 6 Weeks ACTIVE (Last Updated: 1 week ago) Surface Mount Tape & Reel (TR) 74LV yes Active 1 (Unlimited) 5 EAR99 2.9mm ROHS3 Compliant Lead Free No 5 SC-74A, SOT-753 1.45mm 1.6mm 1.2mm Surface Mount 15.790684mg -40°C~125°C TA CMOS TR 1 e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL GULL WING 260 1.8V 74LV1T00 5 Gates 3.3V 30pF 7 ns 4 ns 1μA NAND 2 1 1.6V~5.5V LV/LV-A/LVX/H 0.008 A 10μA 8mA 8mA NAND Gate NO 1 7ns @ 5V, 30pF 0.58V ~ 0.8V 0.94V ~ 2.1V
74HCT20DB,112 74HCT20DB,112 Nexperia USA Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Surface Mount Tube 2013 74HCT Obsolete 1 (Unlimited) 14 5V RoHS Compliant No 14 14-SSOP (0.209, 5.30mm Width) 5.3mm Surface Mount -40°C~125°C CMOS 2 e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL GULL WING 260 5V 30 74HCT20 14 0.65mm Gates 5V 1 50pF 28 ns 13 ns 2μA NAND 4 4.5V~5.5V HCT 4mA 4mA NAND Gate NO 2 28ns @ 4.5V, 50pF 0.8V 2V
NL17SV08XV5T2 NL17SV08XV5T2 Rochester Electronics 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tape & Reel (TR) 17SV yes Obsolete 3 (168 Hours) 5 ROHS3 Compliant SOT-553 unknown Surface Mount -40°C~85°C CMOS 0.6mm 1 e3 MATTE TIN DUAL FLAT 260 3.3V 40 5 YES 0.5mm R-PDSO-F5 0.9V COMMERCIAL 3.6V 1 2 0.9V~3.6V 900nA 24mA 24mA AND Gate 2.3ns @ 3V, 30pF 0.7V ~ 0.8V 1.6V ~ 2V
TC4030BP(N,F) TC4030BP(N,F) Torex Semiconductor Ltd 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Magazine Active RoHS Compliant 14 XOR
74AHC14D-Q100,118 74AHC14D-Q100,118 Nexperia USA Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 4 Weeks Surface Mount Tape & Reel (TR) 2009 Automotive, AEC-Q100, 74AHC Active 1 (Unlimited) 14 5V ROHS3 Compliant No 14 14-SOIC (0.154, 3.90mm Width) 3.9mm Surface Mount -40°C~125°C CMOS 1.75mm 6 e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL GULL WING 5V 74AHC14 14 1.27mm 2V Schmitt Trigger 6 10.6 ns 20.5 ns 2μA Buffer, Inverter, Schmitt Trigger 2V~5.5V AHC/VHC/H/U/V 8mA 8mA Inverter 10.6ns @ 5V, 50pF 0.9V ~ 1.65V 2.2V ~ 3.85V
74LVC00APW/AUJ 74LVC00APW/AUJ NXP USA Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tape & Reel (TR) 2010 74LVC Active 1 (Unlimited) ROHS3 Compliant 14-TSSOP (0.173, 4.40mm Width) Surface Mount -40°C~125°C 74LVC00 Schmitt Trigger 4 2 1.65V~3.6V 10μA 24mA 24mA NAND Gate 4.3ns @ 3.3V, 50pF 0.12V ~ 0.8V 1.08V ~ 2V
CD74HCT132ME4 CD74HCT132ME4 Rochester Electronics 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube 74HCT Obsolete 1 (Unlimited) ROHS3 Compliant 14-SOIC (0.154, 3.90mm Width) Surface Mount -55°C~125°C Schmitt Trigger 4 14-SOIC 2 4.5V~5.5V 2μA 4mA 4mA NAND Gate 33ns @ 4.5V, 50pF 0.5V ~ 0.6V 1.9V ~ 2.1V
SN74AHCT14DR SN74AHCT14DR Texas Instruments 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 6 Weeks ACTIVE (Last Updated: 3 days ago) Surface Mount Tape & Reel (TR) 74AHCT yes Active 1 (Unlimited) 14 EAR99 5V 8.65mm ROHS3 Compliant Lead Free No 14 14-SOIC (0.154, 3.90mm Width) No SVHC 1.75mm 3.91mm 1.58mm Surface Mount 129.387224mg -40°C~85°C CMOS 8542.39.00.01 TR 6 e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL GULL WING 260 5V 74AHCT14 14 1.27mm Gates 5V 6 25mA Schmitt Trigger 50pF 9 ns 12 ns 2μA Buffer, Inverter, Schmitt Trigger 4.5V~5.5V AHCT/VHCT/VT 0.008 A 0.02mA 8mA 8mA Inverter YES 8ns @ 5V, 50pF 0.5V ~ 0.6V 1.9V ~ 2.1V
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