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. 163-9501
Mfr. Part No.36502A3N3JTDG
MYR1,559.77
1 Reel of 2000
Reel(s)
3.3 nH 600mA 0805 (2012M) 2.29mm - 1.73mm 1.52mm - 2.29 x 1.73 x 1.52mm - ±5% 80mΩ 3650 -
RS Stock No. 798-1767
Mfr. Part No.744774133
MYR6.24
Each
units
33 μH 1.09A 5848 5.8mm - 5.2mm 4.5mm - 5.8 x 5.2 x 4.5mm No ±15% 230mΩ - -
RS Stock No. 163-3770
Mfr. Part No.74477810
MYR7,588.87
1 Reel of 1000
Reel(s)
10 μH 1.38A - 7.3mm - 7.3mm 3.2mm - 7.3 x 7.3 x 3.2mm Yes ±20% 72mΩ WE-PD Ferrite
RS Stock No. 122-9197
Mfr. Part No.5258-RC
BrandBourns
MYR6.81
Each (In a Pack of 2)
units
1 mH 1.1A - - - - 31.75mm 12.7mm 12.7 (Dia.) x 31.75mm - - 550mΩ 5200 Ferrite
RS Stock No. 770-0962
Mfr. Part No.DR125-330-R
MYR3.804
Each (In a Bag of 5)
units
33 μH 3.84A 0125 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 50.5mΩ DR73/74/125/127 Ferrite
RS Stock No. 181-6285
Mfr. Part No.SDR0403-5R6ML
BrandBourns
MYR1.81
Each (On a Reel of 250)
units
5.6 μH 1.6A SMD - - - 3.2mm 4.5mm 4.5 Dia. x 3.2mm - ±20% 100mΩ SDR0403 Ferrite DR
RS Stock No. 172-7164
Mfr. Part No.SRU1028-470Y
BrandBourns
MYR3.131
Each (On a Reel of 1000)
units
47 μH 1.3A - 10mm - 10mm 2.8mm - 10 x 10 x 2.8mm Yes ±30% - SRU1028 Ferrite
RS Stock No. 172-8664
Mfr. Part No.5258-RC
BrandBourns
MYR8.127
Each (In a Bag of 60)
units
1 mH 1.1A - - - - 31.75mm 12.7mm 12.7 (Dia.) x 31.75mm - - - 5200 Ferrite
RS Stock No. 169-9621
Mfr. Part No.DR125-330-R
MYR3.972
Each (On a Reel of 600)
units
33 μH 3.84A 0125 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 50.5mΩ DR73/74/125/127 Ferrite
RS Stock No. 167-4826
Mfr. Part No.LQM18NN1R5K00D
BrandMurata
MYR1,890.05
1 Reel of 4000
Reel(s)
1.5 μH 25mA 1608 1.6mm - 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm Yes - 800mΩ LQM18N Ferrite
RS Stock No. 604-4674
Mfr. Part No.SLF7028T-4R7M1R5-PF
BrandTDK
MYR1.237
Each (In a Pack of 10)
units
4.7 μH 1.5A - 7mm - 7mm 2.8mm - 7 x 7 x 2.8mm Yes ±20% 38mΩ - -
RS Stock No. 727-2303
Mfr. Part No.SRR1210-680M
BrandBourns
MYR3.554
Each (In a Pack of 5)
units
68 μH 3A 1210 (3225M) 12mm - 12mm 10mm - 12 x 12 x 10mm Yes ±20% 102mΩ SRR1210 Ferrite
RS Stock No. 825-1899
Mfr. Part No.SRP4020TA-3R3M
BrandBourns
MYR4.716
Each (In a Bag of 5)
units
3.3 μH 3.5A 4020 4.45mm AEC-Q200 4.06mm 1.8mm - 4.45 x 4.06 x 1.8mm Yes ±20% 76mΩ SRP4020TA Carbonyl Powder
RS Stock No. 909-7902
Mfr. Part No.1624097-1
MYR28.37
Each
units
10 μH 620mA - 13mm - 5mm 5.3mm - 13 x 5 x 5.3mm - - 600mΩ 3615 Iron
RS Stock No. 172-8582
Mfr. Part No.SRP4020TA-3R3M
BrandBourns
MYR4.633
Each (On a Reel of 3000)
units
3.3 μH 3.5A 4020 4.45mm AEC-Q200 4.06mm 1.8mm - 4.45 x 4.06 x 1.8mm Yes ±20% - SRP4020TA Carbonyl Powder
RS Stock No. 863-0791
Mfr. Part No.74438336010
MYR4.882
Each (In a Bag of 5)
units
1 μH 4A 3020 3mm - 3mm 2mm - 3 x 3 x 2mm Yes ±20% 32mΩ WE-MAPI Magnetic Iron Alloy
RS Stock No. 168-0293
Mfr. Part No.36502CR36JTDG
MYR1.255
Each (In a Box of 100)
units
360 nH 470mA 1008 2.92mm - 2.79mm 2.1mm - 2.92 x 2.79 x 2.1mm - ±5% 1.1Ω 3650 -
RS Stock No. 548-2750
Mfr. Part No.NLV32T-180J-PF
BrandTDK
MYR0.82
Each (In a Pack of 25)
units
18 μH 120mA 1210 (3225M) 3.2mm - 2.5mm 2.2mm - 3.2 x 2.5 x 2.2mm - ±5% 3.3Ω NLV-PF -
RS Stock No. 172-9772
Mfr. Part No.SRR1210-680M
BrandBourns
MYR4.316
Each (On a Reel of 250)
units
68 μH 3A 1210 (3225M) 12mm - 12mm 10mm - 12 x 12 x 10mm Yes ±20% 102mΩ SRR1210 Ferrite
RS Stock No. 800-7973
Mfr. Part No.744043331
MYR4.24
Each
units
330 μH 285mA 4828 4.8mm - 2.8mm 4.8mm - 4.8 x 4.8 x 2.8mm Yes ±30% 1.7Ω WE-TPC Ferrite
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