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. 883-0278
Mfr. Part No.74478468
SGD0.113
Each (In a Bag of 25)
units
68 nH 100mA 0402 (1005M) 1mm - 0.5mm 0.5mm - 1 x 0.5 x 0.5mm - - 2.2Ω WE-MK Ceramic
RS Stock No. 163-4960
Mfr. Part No.74438323022
SGD1.09
Each (On a Reel of 3000)
units
2.2 μH 1.3A 2510 2.5mm - 2mm 1mm - 2.5 x 2 x 1mm - ±20% 176mΩ WE-MAPI Composite Iron Powder
RS Stock No. 162-0252
Mfr. Part No.B82422A1822K100
BrandEPCOS
SGD0.346
Each (On a Reel of 2000)
units
8.2 μH 130mA 1210 (3225M) 3.2mm - 2.5mm 2mm - 3.2 x 2.5 x 2mm - ±10% SIMID Ferrite
RS Stock No. 785-9357
Mfr. Part No.LQW04AN33NH00D
BrandMurata
SGD0.603
Each (In a Bag of 10)
units
33 nH 140mA 03015 0.8mm - 0.4mm 0.4mm - 0.8 x 0.4 x 0.4mm - ±3% 1.11Ω LQW04A Ferrite
RS Stock No. 172-9670
Mfr. Part No.SRR7032-102M
BrandBourns
SGD0.48
Each (On a Reel of 1500)
units
1 mH 150mA 7032 7mm - 7mm 3.2mm - 7 x 7 x 3.2mm Yes ±20% 5.4Ω SRR7032 Ferrite
RS Stock No. 167-3828
Mfr. Part No.LQP15MN12NG02D
BrandMurata
SGD0.087
Each (On a Reel of 10000)
units
12 nH 90mA 0402 (1005M) 1mm - 0.5mm 0.35mm - 1 x 0.5 x 0.35mm - ±2% 1.6Ω LQP15M Ferrite
RS Stock No. 163-4035
Mfr. Part No.744052002
SGD1.21
Each (On a Reel of 500)
units
2.5 μH 2.7A 5818 5.8mm - 5.8mm 1.8mm - 5.8 x 5.8 x 1.8mm Yes ±30% 40mΩ WE-TPC Ferrite
RS Stock No. 741-7073
Mfr. Part No.ACM4520-901-2P-T
BrandTDK
SGD7.25
1 Pack of 5
Pack(s)
- 2A 4520 4.7mm - 4.5mm 2mm - 4.7 x 4.5 x 2mm - - - ACM -
RS Stock No. 725-5187
Mfr. Part No.LQH43CN330K03L
BrandMurata
SGD0.656
Each (In a Pack of 10)
units
33 μH 310mA 1812 (4532M) 4.5mm - 3.2mm 2.6mm - 4.5 x 3.2 x 2.6mm - ±10% LQH43CN -
New
RS Stock No. 217-7274
Mfr. Part No.74434301213100
SGD11.00
Each
units
10 μH 6A - 10mm - 13.8mm - - - No 15% - WE-LHMD SMT -
RS Stock No. 162-0299
Mfr. Part No.B82496C3569J000
BrandEPCOS
SGD0.235
Each (On a Reel of 4000)
units
5.6 nH 700mA 0603 (1608M) 1.6mm - 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm - ±5% 150mΩ SIMID Copper Plated Ceramic
RS Stock No. 181-6302
Mfr. Part No.SDR0604-471KL
BrandBourns
SGD0.479
Each (On a Reel of 100)
units
470 μH 210mA SMD - - - 4.8mm 5.8mm 5.8 Dia. x 4.8mm - ±10% 3.3Ω SDR0604 Ferrite DR
RS Stock No. 883-0105
Mfr. Part No.744762227A
SGD0.677
Each (In a Bag of 10)
units
270 nH 600mA 1008A 2.5mm - 2mm 1.6mm - 2.5 x 2 x 1.6mm Yes - 750mΩ WE-KI Ceramic
New
RS Stock No. 217-7374
Mfr. Part No.7447706022
SGD1.84
Each (On a Reel of 500)
units
22 μH 10.2A - 12mm AEC-Q200 Grade 1 12mm - - - Yes 30% - WE-PD SMT -
RS Stock No. 167-5572
Mfr. Part No.LQH55DN4R7M03L
BrandMurata
SGD1.392
Each (On a Reel of 350)
units
4.7 μH 2.7A 2220 (5650M) 5.7mm - 5mm 4.7mm - 5.7 x 5 x 4.7mm - ±20% 41mΩ LQH55D -
RS Stock No. 170-3281
Mfr. Part No.NLCV32T-100K-EF
BrandTDK
SGD0.127
Each (On a Reel of 2000)
units
10 μH 450mA 3225 3.2mm - 2.5mm 2.2mm - 3.2 x 2.5 x 2.2mm - - 360mΩ NLCV-EF Ferrite
RS Stock No. 173-0501
Mfr. Part No.IHLP1616BZERR22M01
BrandVishay
SGD1.078
Each (On a Reel of 4000)
units
220 nH 13A 1616 4.45mm - 4.06mm 2mm - 4.45 x 4.06 x 2mm Yes ±20% 8mΩ IHLP Metal Composite
RS Stock No. 786-6719
Mfr. Part No.LQH2MCN180K02L
BrandMurata
SGD0.54
Each (In a Bag of 10)
units
18 μH 190mA 0806 2mm - 1.6mm 0.9mm - 2 x 1.6 x 0.9mm - ±10% 2.34Ω LQH2MC_02 Ferrite
RS Stock No. 185-7685
Mfr. Part No.NLFV25T-2R2M-EF
BrandTDK
SGD0.158
Each (On a Reel of 2000)
units
2.2 μH 315mA SMD 2.5mm - 2mm 1.8mm - 2.5 x 2 x 1.8mm Yes ±20% 100mΩ NLFV-EF Ferrite
RS Stock No. 172-8443
Mfr. Part No.SRF4532-510Y
BrandBourns
SGD0.505
Each (On a Reel of 500)
units
51 μH 200mA 4532 4.5mm - 3.2mm 2.8mm - 4.5 x 3.2 x 2.8mm - -30 → +50% - SRF4532 Ferrite