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. 135-5768
Mfr. Part No.SRN6045TA-101M
BrandBourns
MYR1.67
Each (In a Pack of 25)
units
100 μH 920mA - 6mm AEC-Q200 6mm 4.2mm - 6 x 6 x 4.2mm Yes ±20% 456mΩ SRN6045TA Ferrite
RS Stock No. 166-9656
Mfr. Part No.LQH32MN471J23L
BrandMurata
MYR0.45
Each (On a Reel of 2000)
units
470 μH 45mA 1210 (3225M) 3.2mm - 2.5mm 2mm - 3.2 x 2.5 x 2mm - ±5% 25Ω LQH32MN -
RS Stock No. 135-6064
Mfr. Part No.SRR1050A-330Y
BrandBourns
MYR4.862
Each (In a Pack of 10)
units
33 μH 2.5A - 10.2mm - 10mm 4.8mm - 10.2 x 10 x 4.8mm Yes ±30% 93mΩ SRR1050A Ferrite
New
RS Stock No. 217-7403
Mfr. Part No.7447706471
MYR7.39
Each (On a Tape of 5)
units
470 μH 860mA - 12mm AEC-Q200 12mm - - - Yes 20% - WE-PD SMT -
RS Stock No. 883-0562
Mfr. Part No.744762427A
MYR1.578
Each (In a Bag of 25)
units
27 μH 95mA 1008A 2.5mm - 2mm 1.6mm - 2.5 x 2 x 1.6mm Yes - WE-RFI Ferrite
RS Stock No. 167-5554
Mfr. Part No.LQW18ANR11J00D
BrandMurata
MYR0.262
Each (On a Reel of 4000)
units
110 nH 200mA 0603 (1608M) 1.6mm - 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm - ±5% 1.2Ω LQW18A Ferrite
RS Stock No. 169-2780
Mfr. Part No.LQW18AN18NG00D
BrandMurata
MYR0.282
Each (On a Reel of 4000)
units
18 nH 550mA 1608 1.6mm - 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm - ±2% 160mΩ LQW18A Non-Magnetic Ceramic
RS Stock No. 166-9748
Mfr. Part No.LQP03TN1N0B02D
BrandMurata
MYR0.066
Each (On a Reel of 15000)
units
1 nH 750mA 0603 (1608M) 0.6mm - 0.3mm 0.3mm - 0.6 x 0.3 x 0.3mm - ±0.1nH 100mΩ LQP03TN_02 Non-Magnetic Core
RS Stock No. 800-8099
Mfr. Part No.74406800024
MYR7.36
Each
units
240 nH 4.1A 8012 8mm - 1.1mm 8mm - 8 x 8 x 1.1mm Yes ±30% 19mΩ WE-TPC Ferrite
New
RS Stock No. 217-7315
Mfr. Part No.74438366033
MYR5.275
Each (On a Reel of 1000)
units
3.3 μH 5A - 5.4mm - 5.4mm - - - No 20% - WE-MAPI SMT -
RS Stock No. 108-4723
Mfr. Part No.SLF10145T-470M1R4-PF
BrandTDK
MYR2.295
Each (On a Reel of 500)
units
47 μH 1.4A - - - - - - - - ±20% 100mΩ SLF -
RS Stock No. 172-9769
Mfr. Part No.SRR1240-221K
BrandBourns
MYR2.494
Each (On a Reel of 800)
units
220 μH 920mA 1240 12.5mm - 12.5mm 4mm - 12.5 x 12.5 x 4mm Yes ±10% 660mΩ SRR1240 Ferrite
RS Stock No. 167-8444
Mfr. Part No.B82442H1104K000
BrandEPCOS
MYR5.11
Each (On a Reel of 1500)
units
100 μH 350mA 2220 (5650M) 5.6mm - 5mm 5mm - 5.6 x 5 x 5mm - ±10% 1.28Ω SIMID Ferrite
RS Stock No. 724-2863
Mfr. Part No.LQW18ANR12J00D
BrandMurata
MYR0.638
Each (In a Pack of 10)
units
120 nH 180mA 0603 1.6mm - 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm - ±5% 1.3Ω LQW18A -
RS Stock No. 170-3303
Mfr. Part No.SLF7055T-100M2R5-3PF
BrandTDK
MYR1.90
Each (On a Reel of 1000)
units
10 μH 2.6A 7055 7mm - 7mm 5.5mm - 7 x 7 x 5.5mm Yes - 39.1mΩ SLF Ferrite
RS Stock No. 782-3819
Mfr. Part No.744787181
MYR7.48
Each
units
180 μH 680mA 7850 7.8mm - 7mm 5mm - 7.8 x 7 x 5mm Yes ±20% 794mΩ WE-PD2 Composite Iron Powder
RS Stock No. 169-9726
Mfr. Part No.HCM1104-R56-R
MYR5.165
Each (On a Reel of 850)
units
360 nH 32A 1104 11.1mm - 10mm 4mm - 11.1 x 10 x 4mm Yes ±20% 1.8mΩ HCM1104 Composite Iron Powder
RS Stock No. 170-2832
Mfr. Part No.B82422A1102K100
BrandEPCOS
MYR1.002
Each (On a Reel of 2000)
units
1 μH 380mA 1210 (3225M) 3.2mm - 2.5mm 2mm - 3.2 x 2.5 x 2mm - ±10% 340mΩ SIMID Ferrite
RS Stock No. 522-7064
Mfr. Part No.744775168
MYR8.63
Each
units
68 μH 990mA - 7.8mm - 7mm 5mm - 7.8 x 7 x 5mm No ±10% 280mΩ WE-PD2 Ferrite
RS Stock No. 183-8813
Mfr. Part No.CW161009A-R33J
BrandBourns
MYR0.425
Each (On a Reel of 100)
units
330 nH 150mA 0603 (1608M) 1.65mm AEC-Q200 1.15mm 0.9mm - 1.65 x 1.15 x 0.9mm - ±5% 2.3Ω CW161009A Ceramic