Wire-Wound Surface Mount Inductors

Wire wound surface mount inductors are passive circuit components, meaning they require an external power source. They have a core made of a magnetic metal like iron with wire wound around it. Energy is stored in a magnetic field when an electrical current flows through the coiled wire which has thick insulation to make the inductors suitable for use with larger currents.


What are wire wound surface mount inductors used for?

They are typically found in car audio and electronic control units (ECUs) because they can block or filter radio frequencies. Unwanted radio frequencies can interfere with audio sound quality and disrupt electrical circuits. These inductors are also used in electronic equipment used in communication infrastructures and mobile base stations.

This ability to minimise interference makes them ideal for use with DC/DC converters in power distribution systems too.

Types of wire wound surface mount inductors

Some inductors have added magnetic shielding which blocks unwanted magnetism that can interfere with the circuit. Some wire wound inductors are wound with special techniques that enhance performance and reduce the unit size to save space in circuit boards.


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Description Price Inductance Maximum DC Current Package/Case Length Automotive Standard Depth Height Diameter Dimensions Shielded Tolerance Maximum DC Resistance Series Core Material
RS Stock No. 744-4747
Mfr. Part No.744042150
MYR5.85
Each (In a Bag of 5)
units
15 μH 750mA 4818 4.8mm - 4.8mm 1.8mm - 4.8 x 4.8 x 1.8mm Yes ±30% 220mΩ WE-TPC Ferrite
RS Stock No. 724-3065
Mfr. Part No.LQW2BHN18NJ03L
BrandMurata
MYR1.61
Each (In a Pack of 10)
units
18 nH 690mA 0805 (2012M) - - - - - 2 x 1.5 x 1.7mm - ±5% 100mΩ LQW2BH -
RS Stock No. 125-3172
Mfr. Part No.LQW15AN12NJ00D
BrandMurata
MYR0.266
Each (On a Reel of 10000)
units
12 nH 500mA 0402 (1005M) - - - - - - - ±5% 140mΩ LQW15A Ferrite
RS Stock No. 183-8613
Mfr. Part No.CW161009A-9N5J
BrandBourns
MYR0.425
Each (On a Reel of 100)
units
9.5 nH 700mA 0603 (1608M) 1.65mm AEC-Q200 1.15mm 0.9mm - 1.65 x 1.15 x 0.9mm - ±5% 100mΩ CW161009A Ceramic
RS Stock No. 798-1054
Mfr. Part No.SDR1006-821KL
BrandBourns
MYR3.39
Each (In a Bag of 5)
units
820 μH 240mA 1006 9.8mm - 9.8mm 5.8mm - 9.8 x 9.8 x 5.8mm - ±10% 2.55Ω SDR1006 Ferrite
RS Stock No. 163-5157
Mfr. Part No.768775282
MYR6.34
Each (On a Reel of 500)
units
820 μH 350mA 7850 7.8mm - 7mm 5mm - 7.8 x 7 x 5mm No ±10% 2.77Ω WE-PD2 -
RS Stock No. 763-1421
BrandRS PRO
MYR0.402
Each (On a Reel of 1000)
units
1 μH 170mA 0805 (2012M) 2.29mm - 1.73mm 1.52mm - 2.29 x 1.73 x 1.52mm - ±5% 2.5Ω WL05 Ceramic
RS Stock No. 166-9887
Mfr. Part No.LQW18CN15NJ00D
BrandMurata
MYR0.744
Each (On a Reel of 4000)
units
15 nH 2.2A 1608 1.6mm - 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm - ±5% 25mΩ LQW18CN_00 Ferrite
RS Stock No. 166-0191
Mfr. Part No.B82442T1224K050
BrandEPCOS
MYR2.287
Each (On a Reel of 1500)
units
220 μH 330mA 2220 (5650M) 5.6mm - 5mm 5mm - 5.6 x 5 x 5mm - - 2.21Ω SIMID Ferrite
RS Stock No. 905-4340
Mfr. Part No.B82442T1224K050
BrandEPCOS
MYR5.784
Each (In a Bag of 5)
units
220 μH 330mA 2220 (5650M) 5.6mm - 5mm 5mm - 5.6 x 5 x 5mm - - 2.21Ω SIMID Ferrite
RS Stock No. 770-7199
Mfr. Part No.74435586800
MYR28.18
Each
units
68 μH 7.5A 2212 22mm - 22.5mm 12mm - 22 x 22.5 x 12mm Yes ±20% 27.3mΩ WE-HCI MnZn
RS Stock No. 163-5132
Mfr. Part No.7447789239
MYR6.34
Each (On a Reel of 1000)
units
390 μH 300mA 7332 7.3mm - 7.3mm 3.2mm - 7.3 x 7.3 x 3.2mm Yes ±20% 2.94Ω WE-PD -
RS Stock No. 135-4539
Mfr. Part No.74404086102
MYR3.037
Each (On a Reel of 700)
units
1 mH 480mA 8065 8mm - 8mm 6.5mm - 8 x 8 x 6.5mm Yes ±20% 2.35Ω WE-LQS -
RS Stock No. 798-1644
Mfr. Part No.7447789222
MYR9.65
Each
units
220 μH 430mA 7332 7.3mm - 7.3mm 3.2mm - 7.3 x 7.3 x 3.2mm Yes ±20% 1.65Ω WE-PD -
RS Stock No. 903-9593
Mfr. Part No.VLS201612ET-1R0N
BrandTDK
MYR1.54
Each (In a Bag of 10)
units
1 μH 1.5A 201612 2mm - 1.6mm 0.95mm - 2 x 1.6 x 0.95mm Yes - 93mΩ VLS-E Ferrite
RS Stock No. 715-7588
Mfr. Part No.41680C
MYR12.68
Each
units
68 μH 1.75A - 17.53mm - 16.76mm 9.91mm - 17.53 x 16.76 x 9.91mm - - 110mΩ 4100 -
RS Stock No. 167-5593
Mfr. Part No.LQG18HN12NJ00D
BrandMurata
MYR0.274
Each (On a Reel of 4000)
units
12 nH 400mA 0603 (1608M) - - - - - 1.6 x 0.8 x 0.8mm - ±5% 350mΩ LQG18H -
RS Stock No. 124-7012
Mfr. Part No.SPM4020T-100M-LR
BrandTDK
MYR2.85
Each (On a Reel of 500)
units
10 μH 1.8A 4020 4.4mm - 4.1mm 2mm - 4.4 x 4.1 x 2mm Yes ±20% 284.1mΩ SPM-LR Metal
RS Stock No. 333-8588
Mfr. Part No.744770115
MYR8.73
Each
units
15 μH 5A - 12mm - 12mm 8mm - 12 x 12 x 8mm Yes ±20% 27mΩ WE-PD Ferrite
New
RS Stock No. 212-6036
Mfr. Part No.B82442T1685K000
BrandEPCOS
MYR8.702
Each (On a Tape of 5)
units
6800 μH 65mA 2220 (5650M) 5.6mm AEC-Q200 5mm - - - Yes ±10% - SIMID Ferrite