Call us: +86 0755-82563503

Currency: $ US Dollar

Items : %s%s

Fixed Inductors

Compare Image Name Manufacturer Pricing(USD) Quantity Weight(Kg) Size(LxWxH) Datasheet Factory Lead Time Mount Packaging Published Series Pbfree Code Part Status Moisture Sensitivity Level (MSL) Number of Terminations Termination ECCN Code Max Operating Temperature Min Operating Temperature Depth Diameter Length RoHS Status Lead Free Contact Plating Current Rating Radiation Hardening Number of Pins Package / Case REACH SVHC Reach Compliance Code Lead Pitch Height Resistance Mounting Type Weight Operating Temperature Size / Dimension Height Seated (Max) Ratings HTS Code Packing Method Number of Functions Frequency - Self Resonant Type Lead Length JESD-609 Code Terminal Finish Base Part Number Surface Mount Shielding Terminal Shape Composition Case Code (Metric) Case Code (Imperial) Tolerance Current Rating (Amps) Construction Shape/Size Description Inductance Test Frequency DC Resistance (DCR) Inductor Application Terminal Placement Quality Factor-Min (at L-nom) Case/Size Code Military Standard Material - Core Lead Diameter Lead Spacing Inductance Tolerance Lead/Base Style Q Factor Supplier Device Package RMS Current (Irms) Max DC Current DC Current Special Feature Current - Saturation Q @ Freq Inductance Frequency - Test
SRP1270-1R8M SRP1270-1R8M Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Surface Mount Tape & Reel (TR) 2012 SRP1270 yes Active 1 (Unlimited) 2 EAR99 ROHS3 Compliant 24A Nonstandard 7mm Surface Mount -55°C~125°C 0.539Lx0.539W 13.70mmx13.70mm 0.276 7.00mm 8504.50.80.00 TR 1 31MHz Wirewound e2 Copper/Tin (Cu/Sn) YES WRAPAROUND ±20% RECTANGULAR PACKAGE 1.8μH 100kHz 3.2mOhm Max POWER INDUCTOR DUAL ENDED 5454 Iron 24A 41A
9230-24-RC 9230-24-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Bulk 2012 9230 yes Active 1 (Unlimited) 2 EAR99 2.66mm ROHS3 Compliant Tin Axial Through Hole -55°C~125°C 0.095Diax0.250L 2.41mmx6.35mm 8504.50.80.00 1 140MHz Molded 29.21mm NO NO WIRE ±10% TUBULAR PACKAGE 1.5μH 7.9MHz 220mOhm Max FILTER CHOKE 28 Not Ferrite 28 745mA 745mA 28 @ 7.9MHz
LPA1020-500KL LPA1020-500KL Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Bulk 2006 LPA yes Active 1 (Unlimited) 2 EAR99 ROHS3 Compliant No Axial Through Hole -40°C~85°C 0.394Diax0.787L 10.00mmx20.00mm 8504.50.80.00 1 Wirewound 25mm e2 Tin/Copper (Sn/Cu) LPA1020 NO NO ±10% Shrink Tube TUBULAR PACKAGE 50μH 1kHz 120mOhm Max POWER INDUCTOR Not Ferrite 0.65 mm 2A 2A
74F475AI 74F475AI Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 2000 74F Obsolete 1 (Unlimited) Axial 105°C -55°C 5.08mm 12.7mm Non-RoHS Compliant Contains Lead 350mA Axial Through Hole -55°C~105°C 0.200Diax0.500L 5.08mmx12.70mm 19MHz Wirewound 74F Unshielded ±10% 350mA 47μH 2.52MHz 3.5Ohm Max Iron 90 Axial 350mA 90 @ 2.52MHz 2.52MHz
74F106AP 74F106AP Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 2000 74F Obsolete 1 (Unlimited) Axial 125°C -55°C 5.08mm 12.7mm Non-RoHS Compliant Contains Lead 1A Axial Through Hole -55°C~125°C 0.200Diax0.500L 5.08mmx12.70mm 190MHz Wirewound 74F Unshielded ±20% 1A 1μH 7.96MHz 200mOhm Max Phenolic 45 Axial 1A 45 @ 7.96MHz 7.96MHz
PM125SH-150M PM125SH-150M Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tape & Reel (TR) 2000 PM125SH Obsolete 1 (Unlimited) 2 SMD/SMT EAR99 Non-RoHS Compliant Contains Lead 3.3A Nonstandard unknown 6mm Surface Mount -30°C~100°C 0.492Lx0.492W 12.50mmx12.50mm 0.256 6.50mm 8504.50.80.00 TR 1 Wirewound YES ONE SURFACE ±20% RECTANGULAR PACKAGE 15μH 1kHz 30mOhm Max POWER INDUCTOR DUAL ENDED 4747 Ferrite 5A
2300HT-120-V 2300HT-120-V Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 2005 2300HT yes Obsolete 1 (Unlimited) 2 EAR99 Non-RoHS Compliant Contains Lead 22.4A Radial, Vertical (Open) Through Hole -55°C~200°C 1.280Diax0.650W 32.51mmx16.51mm 8504.50.80.00 1 Toroidal e1 Tin/Silver/Copper (Sn/Ag/Cu) YES WIRE ±15% Vertical Mount CYLINDRICAL PACKAGE 12μH 1kHz 6mOhm Max HIGH CURRENT INDUCTOR Iron Powder 1.6764 mm 14.224mm 1kHz
9250A-563-RC 9250A-563-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Through Hole Bulk 2009 9250A yes Active 1 (Unlimited) 2 EAR99 4.11mm ROHS3 Compliant Lead Free Tin 190mA 2 Axial No SVHC Through Hole -55°C~125°C 0.162Diax0.410L 4.11mmx10.41mm 1 25MHz Molded e3 Shielded Wirewound ±10% Cylindrical TUBULAR PACKAGE 56μH 2.5MHz 2.23Ohm Max RF INDUCTOR 50 Not Ferrite 635 μm 10% 50 190mA 190mA 160mA 50 @ 2.5MHz
RLB9012-6R8ML RLB9012-6R8ML Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Through Hole Bulk 2005 RLB9012 yes Active 1 (Unlimited) 2 EAR99 ROHS3 Compliant 4.1A No Radial, Vertical Cylinder 5mm 12.2mm Through Hole -55°C~125°C 0.354Dia 9.00mm 0.480 12.20mm 8504.50.80.00 1 29MHz Wirewound e3 Tin (Sn) NO ±20% Cylindrical CYLINDRICAL PACKAGE 6.8μH 1kHz 35mOhm Max DC-DC CONVERTER 20 Not Ferrite Radial 4.1A 4.1A Q MEASURED AT 7.9 MHZ 20 @ 7.96MHz
PM528S-8R2-RC PM528S-8R2-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks Surface Mount Tape & Reel (TR) 2007 PM528S yes Active 1 (Unlimited) 2 EAR99 6.1mm ROHS3 Compliant 2.1A No Nonstandard 3mm Surface Mount -40°C~125°C 0.228Lx0.228W 5.80mmx5.80mm 0.118 3.00mm 8504.50.80.00 TR 1 34MHz Wirewound e2 Silver/Nickel/Tin (Ag/Ni/Sn) YES ONE SURFACE ±30% RECTANGULAR PACKAGE 8.2μH 100kHz 55mOhm Max POWER INDUCTOR DUAL ENDED 7 2323 Not Ferrite 1.6A 2.1A 7 @ 7.96MHz
CM453232-R39ML CM453232-R39ML Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Surface Mount Tape & Reel (TR) 2008 CM45 yes Active 3 (168 Hours) 2 SMD/SMT EAR99 3.4mm ROHS3 Compliant 575mA 2 1812 (4532 Metric) 3.2004mm 300mOhm Surface Mount 26.988746mg -40°C~125°C 0.177Lx0.126W 4.50mmx3.20mm 0.134 3.40mm 8504.50.80.00 TR, 7 Inch 1 150MHz Wirewound e3 Matte Tin (Sn) CM453232 NO WRAPAROUND 4532 1812 ±20% Rectangular RECTANGULAR PACKAGE 390nH 25.2MHz 300mOhm Max RF INDUCTOR DUAL ENDED 40 Not Ferrite 40 575mA 575mA 40 @ 25.2MHz
4644-RC 4644-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 2009 4600 yes Obsolete 1 (Unlimited) EAR99 10.414mm ROHS3 Compliant 160mA Axial 6.5Ohm Through Hole -55°C~125°C 0.410Diax0.875L 10.41mmx22.22mm 8504.50.80.00 8.8MHz Wirewound Unshielded ±5% 150μH 790kHz 6.5Ohm Max Not Phenolic 736.6 μm 53 160mA 160mA 53 @ 790kHz
SRU1038A-680Y SRU1038A-680Y Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Surface Mount Tape & Reel (TR) 2013 SRU1038A Active 1 (Unlimited) EAR99 10.3mm ROHS3 Compliant 1.1A Nonstandard No SVHC 3.8mm Surface Mount -40°C~125°C 0.394Lx0.394W 10.00mmx10.00mm 0.161 4.10mm AEC-Q200 8504.50.80.00 7MHz Wirewound e3 Tin (Sn) Shielded ±30% 68μH 100kHz 216mOhm Max Not Ferrite 30% 1.1A 1.1A 1.3A 24 @ 2.52MHz
PM0603H-100NJ PM0603H-100NJ Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tape & Reel (TR) 2001 PM0603H no Obsolete 1 (Unlimited) 2 SMD/SMT EAR99 Non-RoHS Compliant Contains Lead 300mA 0603 (1608 Metric) 800μm Surface Mount -25°C~105°C 0.065Lx0.041W 1.65mmx1.05mm 0.047 1.20mm 8504.50.80.00 TR 1 925MHz Multilayer NO WRAPAROUND 1608 0603 ±5% Monolithic RECTANGULAR PACKAGE 100nH 100MHz 1Ohm Max RF INDUCTOR DUAL ENDED 16 Ceramic 16 300mA 16 @ 100MHz
PM3340-150M-RC PM3340-150M-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Surface Mount Tape & Reel (TR) 2008 PM3340 yes Active 1 (Unlimited) 2 SMD/SMT EAR99 10.2mm ROHS3 Compliant Lead Free 3A No 2 Nonstandard No SVHC 11.5mm Surface Mount -55°C~105°C 0.512Lx0.402W 13.00mmx10.20mm 0.453 11.50mm 8504.50.80.00 TR, 13 Inch 1 Wirewound e2 Tin/Nickel/Copper (Sn/Ni/Cu) NO WRAPAROUND ±20% Rectangular RECTANGULAR PACKAGE 15μH 100kHz 42mOhm Max POWER INDUCTOR DUAL ENDED 5140 Not Ferrite 20% 3A 7A 3A
1130-222K-RC 1130-222K-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 10 Weeks Through Hole Bulk 2008 1130 yes Active 1 (Unlimited) 2 EAR99 27.94mm ROHS3 Compliant Tin 1.3A 2 Radial 19.05mm 21.336mm 1.02Ohm Through Hole -55°C~105°C 1.100Dia 27.94mm 0.840 21.34mm 8504.50.80.00 1 Wirewound e3 NO ±10% Bobbin Core CYLINDRICAL PACKAGE 2.2mH 1kHz 1.02Ohm Max HIGH CURRENT INDUCTOR Not Ferrite 10% 1.3A 1.3A
SDR0805-1R5ML SDR0805-1R5ML Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Surface Mount Tape & Reel (TR) 2006 SDR0805 yes Active 1 (Unlimited) 2 SMD/SMT EAR99 7.8mm ROHS3 Compliant Tin 6A No 2 Nonstandard No SVHC 5.3mm 20MOhm Surface Mount -40°C~125°C 0.307Lx0.307W 7.80mmx7.80mm 0.209 5.30mm 8504.50.80.00 TR, Embossed , 13 Inch 1 120MHz Wirewound e1 NO ONE SURFACE ±20% Chip CYLINDRICAL PACKAGE 1.5μH 1kHz 20mOhm Max POWER INDUCTOR DUAL ENDED Not Ferrite 20% 32 6A 6A 6A 9.1A 32 @ 7.96MHz
SRR1806-331M SRR1806-331M Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Surface Mount Tape & Reel (TR) 2006 SRR1806 yes Active 1 (Unlimited) 2 SMD/SMT EAR99 14.3mm ROHS3 Compliant Lead Free 800mA No 2 Nonstandard No SVHC 6.8mm Surface Mount -40°C~125°C 0.720Lx0.551W 18.30mmx14.00mm 0.280 7.10mm 8504.50.40.00 TR 1 3MHz Wirewound e3 Matte Tin (Sn) - with Nickel (Ni) barrier YES WRAPAROUND ±20% RECTANGULAR PACKAGE 330μH 100kHz 790mOhm POWER INDUCTOR DUAL ENDED 30 Not Ferrite 20% 18 800mA 800mA 800mA 1.4A 30 @ 796kHz
2100LL-151-V-RC 2100LL-151-V-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Through Hole Bulk 2004 2100LL yes Active 1 (Unlimited) 2 EAR99 11.43mm 21.8mm ROHS3 Compliant Lead Free Tin 3.9A Radial, Vertical (Open) 10.16mm 21.8mm Through Hole -55°C~125°C 0.860Diax0.450W 21.84mmx11.43mm 8504.50.80.00 1 Toroidal 12.7mm e3 YES WIRE ±15% Vertical Mount CYLINDRICAL PACKAGE 150μH 1kHz 43mOhm Max HIGH CURRENT INDUCTOR Not Sendust 863.6 μm Radial 3.9A 3.9A
SDR0603-331KL SDR0603-331KL Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Surface Mount Tape & Reel (TR) 2006 SDR0603 yes Active 1 (Unlimited) 2 SMD/SMT EAR99 ROHS3 Compliant 200mA No Nonstandard No SVHC 3.9mm Surface Mount -40°C~125°C 0.228Lx0.228W 5.80mmx5.80mm 0.154 3.90mm 8504.50.80.00 TR 1 5MHz Wirewound e1 Tin/Silver/Copper (Sn/Ag/Cu) NO ONE SURFACE ±10% CYLINDRICAL PACKAGE 330μH 1kHz 3.2Ohm Max POWER INDUCTOR DUAL ENDED Not Ferrite 10% 28 200mA 200mA 200mA 360mA 28 @ 796kHz
1140-821K-RC 1140-821K-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Through Hole Bulk 2002 1140 yes Active 1 (Unlimited) 2 EAR99 38.1mm ROHS3 Compliant Lead Free Tin 7.2A 2 Radial, Vertical Cylinder No SVHC 29.21mm Through Hole -55°C~105°C 1.500Dia 38.10mm 1.030 26.16mm 8504.50.80.00 1 Wirewound 12.7mm e3 NO ±10% 4.2A Bobbin Core CYLINDRICAL PACKAGE 820μH 1kHz 154mOhm Max HIGH CURRENT INDUCTOR Not Ferrite 10% Radial 7.2A 7.2A 7.2A
2224-H 2224-H Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 2006 2200 no Obsolete 1 (Unlimited) 2 Radial EAR99 24.13mm Non-RoHS Compliant Contains Lead 1.9A 2 Radial, Horizontal (Open) 23.114mm Through Hole -55°C~105°C 0.950Dia 24.13mm 0.550 13.97mm 8504.50.80.00 1 Toroidal NO WIRE ±15% CYLINDRICAL PACKAGE 1mH 1kHz 280mOhm Max HIGH CURRENT INDUCTOR Iron Powder 1.9A
PM3316S-4R7M PM3316S-4R7M Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tape & Reel (TR) 2001 PM3316S Obsolete 1 (Unlimited) 2 SMD/SMT EAR99 Non-RoHS Compliant Contains Lead 2.7A Nonstandard unknown 5.2mm Surface Mount -40°C~85°C 0.512Lx0.374W 13.00mmx9.50mm 0.201 5.10mm 8504.50.80.00 TR 1 Wirewound YES ONE SURFACE ±20% RECTANGULAR PACKAGE 4.7μH 100kHz 54mOhm Max POWER INDUCTOR DUAL ENDED 5137 Ferrite 2.5A 3.2A
5800-122-RC 5800-122-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks Through Hole Tray 2007 5800 yes Active 1 (Unlimited) 2 EAR99 6.985mm ROHS3 Compliant Lead Free 200mA 2 Axial 2.65Ohm Through Hole -55°C~105°C 0.275Diax0.700L 6.99mmx17.78mm 8504.50.80.00 1 Wirewound Unshielded ±10% Bobbin Core TUBULAR PACKAGE 1.2mH 1kHz 2.7Ohm Max HIGH CURRENT INDUCTOR Not Ferrite 635 μm 10% 230mA 200mA 330mA
9250A-682-RC 9250A-682-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Through Hole Bulk 2009 9250A yes Active 1 (Unlimited) 2 EAR99 4.11mm ROHS3 Compliant Lead Free Tin 280mA Axial Through Hole -55°C~125°C 0.162Diax0.410L 4.11mmx10.41mm 1 55MHz Molded 25.4mm e3 YES Wirewound ±10% Cylindrical TUBULAR PACKAGE 6.8μH 7.9MHz 1.02Ohm Max RF INDUCTOR 50 Not Ferrite 635 μm 50 280mA 280mA 50 @ 7.9MHz
9250-393 9250-393 Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 2005 9250 Obsolete 1 (Unlimited) EAR99 Non-RoHS Compliant Contains Lead 205mA Axial Through Hole -55°C~105°C 0.162Diax0.410L 4.11mmx10.41mm 29MHz Wirewound Shielded ±10% 39μH 2.5MHz 1.93Ohm Max Ferrite 50 205mA 180mA 50 @ 2.5MHz
SRU6025A-220Y SRU6025A-220Y Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Surface Mount Tape & Reel (TR) 2004 SRU6025A Active 1 (Unlimited) EAR99 6.8mm ROHS3 Compliant 1.6A Nonstandard No SVHC 2.5mm Surface Mount -40°C~125°C 0.256Lx0.244W 6.50mmx6.20mm 0.110 2.80mm AEC-Q200 8504.50.80.00 18MHz Wirewound e3 Tin (Sn) Shielded ±30% 22μH 100kHz 130mOhm Max Not Ferrite 30% 1.6A 1.6A 700mA 12 @ 2.52MHz
SRR1240-2R4Y SRR1240-2R4Y Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Surface Mount Tape & Reel (TR) 2011 SRR1240 yes Active 1 (Unlimited) 2 SMD/SMT EAR99 12.8mm ROHS3 Compliant 8A 2 Nonstandard No SVHC 3.9878mm Surface Mount -40°C~125°C 0.492Lx0.492W 12.50mmx12.50mm 0.177 4.50mm 8504.50.80.00 TR 1 54MHz Wirewound e3 Tin (Sn) - with Nickel (Ni) barrier YES WRAPAROUND ±30% RECTANGULAR PACKAGE 2.4μH 100kHz 11.5mOhm Max POWER INDUCTOR DUAL ENDED 10 4949 Not Ferrite 30% 10 8A 8A 8A 7.8A 10 @ 7.96MHz
5300-07-RC 5300-07-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Through Hole Bulk 2009 5300 yes Active 1 (Unlimited) 2 EAR99 4.06mm ROHS3 Compliant Tin 1.9A Axial Through Hole -55°C~105°C 0.160Diax0.500L 4.06mmx12.70mm 8504.50.80.00 1 110MHz Wirewound 25.4mm e3 NO ±10% Conformal Coated TUBULAR PACKAGE 3.3μH 7.96MHz 54mOhm Max RF INDUCTOR Not Ferrite 1.9A 1.9A 1.7A
CS321613-1R5K CS321613-1R5K Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tape & Reel (TR) 2011 CS321613 yes Obsolete 1 (Unlimited) 2 SMD/SMT EAR99 1.8mm ROHS3 Compliant 50mA No 1206 (3216 Metric) 1.5mm Surface Mount -55°C~125°C 0.126Lx0.063W 3.20mmx1.60mm 0.059 1.50mm TR 1 60MHz Multilayer e3 Matte Tin (Sn) - with Nickel (Ni) barrier Shielded WRAPAROUND 3216 1206 ±10% RECTANGULAR PACKAGE 1.5μH 10MHz 300mOhm Max RF INDUCTOR DUAL ENDED 45 Not Ferrite 80 50mA 50mA 80 @ 10MHz
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