Call us: +86 0755-82563503

Currency: $ US Dollar

Items : %s%s

Inductors

Inductors.jpg
Inductors are passive electronic components that store electrical energy in the form of a magnetic field. They are typically made of a coil of wire wound around a core material and are used in various electrical circuits and systems. Inductors resist changes in current flow and are commonly employed in filtering, energy storage, impedance matching, and signal conditioning applications. They play a vital role in applications such as power supplies, radio frequency (RF) circuits, motor control, and electromagnetic compatibility (EMC) solutions.
Compare Image Name Manufacturer Pricing(USD) Quantity Weight(Kg) Size(LxWxH) Datasheet Factory Lead Time Mount Material 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 Frequency Height Width Resistance Mounting Type Weight Operating Temperature Size / Dimension Height Seated (Max) Ratings Current 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 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) Rated Current-Max Case/Size Code Military Standard Material - Core Lead Diameter Lead Spacing Inductance Tolerance Lead/Base Style Q Factor RMS Current (Irms) Max DC Current DC Current Special Feature Current - Saturation Q @ Freq Inductance Frequency - Test
SRR4828A-150M SRR4828A-150M Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Tape & Reel (TR) SRR4828A Active 1 (Unlimited) 2 EAR99 ROHS3 Compliant Nonstandard Surface Mount -40°C~150°C 0.189Lx0.189W 4.80mmx4.80mm 0.118 3.00mm AEC-Q200 8504.50.80.00 1 25MHz Wirewound e3 Tin (Sn) YES YES WRAPAROUND ±20% 1.8A RECTANGULAR PACKAGE 15μH 0.1MHz 145mOhm Max POWER INDUCTOR DUAL ENDED 1.8A Ferrite 20% 920mA 100kHz
2300LL-331-H-RC 2300LL-331-H-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 2007 2300LL yes Active 1 (Unlimited) 2 EAR99 32.5mm ROHS3 Compliant Lead Free 4.6A Radial, Horizontal (Open) 16.5mm Through Hole -55°C~125°C 1.280Dia 32.51mm 0.650 16.51mm 8504.50.80.00 1 Toroidal 12.7mm NO WIRE ±15% Hortizontal Mount CYLINDRICAL PACKAGE 330μH 1kHz 79mOhm Max HIGH CURRENT INDUCTOR Sendust 28.956mm 1kHz
SRR1005-102K SRR1005-102K Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Surface Mount Steel Tape & Reel (TR) 2006 SRR1005 yes Active 1 (Unlimited) 2 SMD/SMT EAR99 10.2mm ROHS3 Compliant 220mA No 2 Nonstandard No SVHC 2MHz 5.2mm 3.2Ohm Surface Mount -40°C~125°C 0.500Lx0.394W 12.70mmx10.00mm 0.205 5.20mm 8504.50.80.00 TR, EMBOSSED, 13 INCH 1 Wirewound e3 Matte Tin (Sn) - with Nickel (Ni) barrier YES ONE SURFACE ±10% Rectangular RECTANGULAR PACKAGE 1mH 1kHz 3.2Ohm Max POWER INDUCTOR DUAL ENDED 5039 Not Ferrite 10% 65 220mA 220mA 220mA 320mA 65 @ 252kHz
2300HT-390-V-RC 2300HT-390-V-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 15 Weeks Through Hole Bulk 2011 2300HT yes Active 1 (Unlimited) 2 EAR99 16.51mm 32.51mm ROHS3 Compliant Tin 13A Radial, Vertical (Open) 13.46mm 17mOhm Through Hole -55°C~200°C 1.280Diax0.650W 32.51mmx16.51mm 8504.50.80.00 1 Toroidal YES WIRE ±15% Vertical Mount CYLINDRICAL PACKAGE 39μH 1kHz 17mOhm Max HIGH CURRENT INDUCTOR Not Iron Powder 13.462mm Radial 13A 13A
RL875S-562K-RC RL875S-562K-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks Through Hole Bulk 2012 RL875S yes Active 1 (Unlimited) 2 Radial EAR99 7.8mm ROHS3 Compliant 99mA No Radial, Vertical Cylinder 5mm 7.5mm Through Hole -40°C~105°C 0.307Dia 7.80mm 0.295 7.50mm 8504.50.80.00 1 1MHz Wirewound YES ±10% Cylindrical CYLINDRICAL PACKAGE 5.6mH 1kHz 20.4Ohm Max DC-DC CONVERTER Ferrite 99mA 95 @ 252kHz 1kHz
PM0805G-R15J PM0805G-R15J Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tape & Reel (TR) 2003 PM0805G Obsolete 1 (Unlimited) SMD/SMT EAR99 Non-RoHS Compliant Contains Lead 250mA 0805 (2012 Metric) 1.2mm Surface Mount 5.499807mg -25°C~105°C 0.079Lx0.049W 2.00mmx1.25mm 0.035 0.90mm 8504.50.80.00 200MHz Multilayer Shielded 2012 0805 ±5% 150nH 25MHz 400mOhm Max Ferrite 20 250mA 20 @ 25MHz
SDR1307A-680K SDR1307A-680K Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Surface Mount Tape & Reel (TR) 2013 SDR1307A Active 1 (Unlimited) EAR99 ROHS3 Compliant 2.3A No Nonstandard No SVHC 7mm Surface Mount -40°C~125°C 0.512Dia 13.00mm 0.287 7.30mm AEC-Q200 8504.50.80.00 7MHz Wirewound e3 Tin (Sn) - with Nickel (Ni) barrier Unshielded ±10% 68μH 100kHz 120mOhm Max Not Ferrite 10% 2.3A 2.3A 3.5A 24 @ 2.52MHz
5618 5618 Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 5600 yes Obsolete 1 (Unlimited) 2 Radial EAR99 30.988mm Non-RoHS Compliant Contains Lead 1.6A Radial, Vertical Cylinder 26.67mm 28.2mm Through Hole -55°C~105°C 1.220Dia 30.99mm 1.110 28.19mm 8504.50.80.00 1 Wirewound 25.4mm NO ±10% Shrink Tube CYLINDRICAL PACKAGE 2.5mH 1kHz 690mOhm Max RF INDUCTOR Ferrite 26.7mm 1.6A
79F391K 79F391K Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 2004 79F Obsolete 1 (Unlimited) 2 EAR99 2.54mm Non-RoHS Compliant Contains Lead 25mA Axial unknown Through Hole -55°C~105°C 0.100Diax0.160L 2.54mmx4.06mm 8504.50.80.00 1 3.8MHz Wirewound 25.4mm NO ±10% TUBULAR PACKAGE 390μH 790kHz 34Ohm Max RF INDUCTOR 40 0.03A Ferrite 40 @ 790kHz 790kHz
9230-74 9230-74 Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 2006 9230 no Obsolete 1 (Unlimited) 2 EAR99 2.41mm Non-RoHS Compliant Contains Lead 79mA Axial Through Hole -55°C~125°C 0.095Diax0.250L 2.41mmx6.35mm 8504.50.80.00 1 10MHz Molded 25.4mm Unshielded WIRE ±10% Flame Retardant Coat TUBULAR PACKAGE 180μH 790kHz 17Ohm Max RF INDUCTOR 30 Ferrite 30 79mA 30 @ 790kHz
PM1210-1R5J-RC PM1210-1R5J-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks Surface Mount Tape & Reel (TR) 2009 PM1210 Active 3 (168 Hours) 2 SMD/SMT EAR99 2.5mm ROHS3 Compliant Lead Free 370mA No 2 1210 (3225 Metric) 2.2mm Surface Mount 15.989131mg -40°C~125°C 0.126Lx0.098W 3.20mmx2.50mm 0.087 2.20mm 8504.50.80.00 TR, 7 Inch 1 90MHz Wirewound e3 Tin (Sn) NO WRAPAROUND 3225 1210 ±5% Chip RECTANGULAR PACKAGE 1.5μH 7.96MHz 750mOhm Max POWER INDUCTOR DUAL ENDED 30 Not Ferrite 28 210mA 210mA PARALLEL CONNECTED 30 @ 7.96MHz
PM428S-470-RC PM428S-470-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks Surface Mount Tape & Reel (TR) 2007 PM428S yes Active 1 (Unlimited) 2 SMD/SMT EAR99 5mm ROHS3 Compliant 750mA No Nonstandard 2.8mm Surface Mount -40°C~125°C 0.189Lx0.189W 4.80mmx4.80mm 0.118 3.00mm 8504.50.80.00 TR, Embossed, 7 Inch 1 13MHz Wirewound e2 Silver/Nickel/Tin (Ag/Ni/Sn) YES ONE SURFACE ±30% Rectangular RECTANGULAR PACKAGE 47μH 100kHz 280mOhm Max POWER INDUCTOR DUAL ENDED 1919 Ferrite 750mA 480mA 10.88 @ 2.52MHz
9220-22 9220-22 Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 2001 9220 no Obsolete 1 (Unlimited) 2 EAR99 4.83mm Non-RoHS Compliant Contains Lead 83mA Axial Through Hole -55°C~105°C 0.190Diax0.440L 4.83mmx11.18mm 8504.50.80.00 1 3.3MHz Wirewound 25.4mm NO ±5% Flame Retardant Coat TUBULAR PACKAGE 750μH 7.9MHz 14.4Ohm Max RF INDUCTOR 60 Ferrite 60 83mA 60 @ 7.9MHz
PM40-220K PM40-220K Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tape & Reel (TR) 2002 PM40 Obsolete 1 (Unlimited) SMD/SMT EAR99 Non-RoHS Compliant Contains Lead 180mA 2 1812 (4532 Metric) unknown Surface Mount -55°C~125°C 0.177Lx0.126W 4.50mmx3.20mm 0.126 3.20mm 13MHz Molded Unshielded 4532 1812 ±10% 22μH 2.52MHz 3.2Ohm Max Iron Powder 50 180mA 50 @ 2.52MHz
5716 5716 Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 5700 Obsolete 1 (Unlimited) Radial 105°C -55°C 19.05mm 46.0248mm Non-RoHS Compliant Contains Lead 7.75A Radial, Vertical (Open) 17.272mm 11.0998mm 32mOhm Through Hole -55°C~105°C 0.875Diax0.437W 22.22mmx11.10mm Toroidal 5700 Unshielded ±15% 7.75A 125μH 1kHz 32mOhm Max Not Iron Powder Radial 7.75A 7.75A 1kHz
RL824-152K-RC RL824-152K-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Bulk 2009 RL824 yes Active 1 (Unlimited) 2 Radial EAR99 ROHS3 Compliant No Radial, Vertical Cylinder 5mm 12.5mm Through Hole -55°C~105°C 0.413Dia 10.50mm 0.610 15.50mm 8504.50.80.00 1 770kHz Wirewound NO NO ±10% Cylindrical CYLINDRICAL PACKAGE 1.5mH 1kHz 2.1Ohm Max DC-DC CONVERTER 45 Not Ferrite 0.7 mm 35 270mA 270mA Q IS MEASURED AT: 0.25 MHZ 45 @ 250kHz 1kHz
PM0805-27NM-RC PM0805-27NM-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks Surface Mount Tape & Reel (TR) 2006 PM0805 yes Active 1 (Unlimited) 2 SMD/SMT EAR99 1.7mm ROHS3 Compliant Lead Free 600mA No 2 0805 (2012 Metric) 1.3mm Surface Mount 5.499807mg -40°C~125°C 0.083Lx0.059W 2.10mmx1.50mm 0.059 1.50mm 8504.50.80.00 TR 1 2.6GHz Wirewound e4 Gold (Au) - with Nickel (Ni) barrier NO ONE SURFACE 2012 0805 ±20% Chip RECTANGULAR PACKAGE 27nH 250MHz 120mOhm RF INDUCTOR DUAL ENDED 60 Alumina 55 600mA Q MEASURED AT 500 MHZ 60 @ 500MHz
PM3308-681M-RC PM3308-681M-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Tape & Reel (TR) 2007 PM3308 yes Active 1 (Unlimited) 2 SMD/SMT EAR99 9.5mm ROHS3 Compliant 100mA No 2 Nonstandard 3mm Surface Mount -55°C~125°C 0.512Lx0.374W 13.00mmx9.50mm 0.118 3.00mm 8504.50.80.00 TR 1 Wirewound e2 Tin/Nickel/Copper (Sn/Ni/Cu) YES NO WRAPAROUND ±20% RECTANGULAR PACKAGE 680μH 796kHz 5.3Ohm Max POWER INDUCTOR DUAL ENDED 5137 Ferrite 20% 200mA 100kHz
70F104AI 70F104AI Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 2005 70F no Obsolete 1 (Unlimited) 2 EAR99 4.064mm Non-RoHS Compliant Contains Lead 139mA Axial Through Hole -55°C~105°C 0.160Diax0.250L 4.06mmx6.35mm 8504.50.80.00 1 3.6MHz Wirewound 31.75mm NO ±5% Varnish Coating TUBULAR PACKAGE 100μH 2.5MHz 7.68Ohm Max RF INDUCTOR 25 Iron 25 139mA 25 @ 2.5MHz
9310-00-RC 9310-00-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Bulk 2012 9310 Obsolete 1 (Unlimited) 2 Radial EAR99 4.21mm ROHS3 Compliant Tin 2.45A 2 Axial Through Hole -55°C~105°C 0.156Diax0.375L 3.96mmx9.53mm 1 525MHz Wirewound e3 NO NO ±20% Molded TUBULAR PACKAGE 150nH 25MHz 30mOhm Max RF INDUCTOR 50 Not Ferrite 635 μm 50 2.45A 2.45A 50 @ 25MHz
5230 5230 Bourns Inc. 0.8695
Add to Cart

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 5200 yes Obsolete 1 (Unlimited) EAR99 9.65mm Non-RoHS Compliant Contains Lead 8A Axial 12mOhm Through Hole -55°C~105°C 0.380Diax0.875L 9.65mmx22.23mm 8504.50.40.00 165MHz Wirewound Unshielded ±20% 4μH 7.96MHz 12mOhm Max Not Ferrite 8A 8A
RLB0913-680K RLB0913-680K Bourns Inc. 0.5715
Add to Cart

Min: 1

Mult: 1

0.00000000 download 18 Weeks Tray RLB0913 yes Active 1 (Unlimited) 2 EAR99 ROHS3 Compliant Radial, Vertical Cylinder No SVHC Through Hole -55°C~125°C 0.335Dia 8.50mm 0.492 12.50mm 8504.50.80.00 1 4.9MHz Wirewound e1 Tin/Silver/Copper (Sn/Ag/Cu) NO NO ±10% 1.4A CYLINDRICAL PACKAGE 68μH 0.001MHz 210mOhm DC-DC CONVERTER 30 1.4A Ferrite 10% Q MEASURED AT 2.52 MHZ 1.2A 30 @ 2.52MHz 1kHz
SDR0403-1R4ML SDR0403-1R4ML Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Surface Mount Tape & Reel (TR) 2006 SDR0403 Active 1 (Unlimited) SMD/SMT 125°C -40°C 4.3mm 4.5mm 4.4958mm ROHS3 Compliant 3.3A No 2 Nonstandard No SVHC 3.2mm 3.9878mm 38MOhm Surface Mount -40°C~125°C 0.177Lx0.157W 4.50mmx4.00mm 0.138 3.50mm 110MHz Wirewound SDR0403 Unshielded ±20% 3.3A 1.4μH 1kHz 38mOhm Max Not Ferrite 20% 28 3.3A 3.3A 3.3A 5.1A 28 @ 7.96MHz 1kHz
2100LL-271-V-RC 2100LL-271-V-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 2004 2100LL yes Active 1 (Unlimited) 2 EAR99 11.43mm 21.8mm ROHS3 Compliant Lead Free 2.7A No Radial, Vertical (Open) 21.8mm Through Hole -55°C~125°C 0.860Diax0.450W 21.84mmx11.43mm 8504.50.80.00 1 Toroidal 12.7mm YES WIRE ±15% Vertical Mount CYLINDRICAL PACKAGE 270μH 1kHz 93mOhm Max HIGH CURRENT INDUCTOR Sendust 9.398mm Radial 2.7A
2300HT-5R6-V 2300HT-5R6-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 25.8A Radial, Vertical (Open) Through Hole -55°C~200°C 1.280Diax0.650W 32.51mmx16.51mm 8504.50.80.00 1 Toroidal YES WIRE ±15% Vertical Mount CYLINDRICAL PACKAGE 5.6μH 1kHz 5mOhm Max HIGH CURRENT INDUCTOR Iron Powder 1.6764 mm 14.224mm 1kHz
SDR0603-1R5ML SDR0603-1R5ML 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 3A No Nonstandard No SVHC 3.9mm Surface Mount -40°C~125°C 0.228Lx0.228W 5.80mmx5.80mm 0.154 3.90mm 610mA 8504.50.80.00 TR 1 85MHz Wirewound e1 Tin/Silver/Copper (Sn/Ag/Cu) NO ONE SURFACE ±20% CYLINDRICAL PACKAGE 1.5μH 1kHz 40mOhm Max POWER INDUCTOR DUAL ENDED Not Ferrite 20% 24 3A 3A 3A 3.5A 24 @ 7.96MHz
PM1608-3R3M-RC PM1608-3R3M-RC Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 16 Weeks Surface Mount Tape & Reel (TR) 2009 PM1608 yes Active 1 (Unlimited) 2 SMD/SMT EAR99 4.45mm ROHS3 Compliant 2A No Nonstandard 2.92mm Surface Mount -40°C~125°C 0.260Lx0.175W 6.60mmx4.45mm 0.115 2.92mm 8504.50.80.00 TR, Embossed, 7 Inch 1 70MHz Wirewound NO WRAPAROUND ±20% Rectangular RECTANGULAR PACKAGE 3.3μH 7.96MHz 80mOhm Max POWER INDUCTOR DUAL ENDED 2618 Ferrite 2A 18.5 @ 7.96MHz
2212-H 2212-H Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 2006 2200 no Obsolete 1 (Unlimited) 2 EAR99 24.13mm Non-RoHS Compliant Contains Lead 4.4A Radial, Horizontal (Open) 21.844mm 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 100μH 1kHz 56mOhm Max HIGH CURRENT INDUCTOR 8947 Not Iron Powder Radial 4.4A 4.4A
70F566AI 70F566AI Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Through Hole Bulk 2002 70F no Obsolete 1 (Unlimited) EAR99 3.81mm Non-RoHS Compliant Contains Lead 637mA Axial Through Hole -55°C~105°C 0.150Diax0.250L 3.81mmx6.35mm 8504.50.80.00 49MHz Wirewound Unshielded ±10% 5.6μH 7.9MHz 492mOhm Max Iron 41 637mA 41 @ 7.9MHz
SRR1260A-680M SRR1260A-680M Bourns Inc. 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 18 Weeks Surface Mount Tape & Reel (TR) 2011 SRR1260A Active 1 (Unlimited) EAR99 12.8mm ROHS3 Compliant 2.1A Nonstandard No SVHC 6mm Surface Mount -40°C~125°C 0.492Lx0.492W 12.50mmx12.50mm 0.256 6.50mm AEC-Q200 8504.50.80.00 7.43MHz Wirewound e3 Tin (Sn) Shielded ±20% 68μH 1kHz 110mOhm Max Not Ferrite 20% 2.1A 2.1A 22 @ 2.52MHz
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