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. 163-5089
Mfr. Part No.7447779122
MYR6.34
Each (On a Reel of 1000)
units
22 μH 1.41A - 7.3mm - 7.3mm 4.5mm - 7.3 x 7.3 x 4.5mm Yes ±20% 110mΩ WE-PD -
RS Stock No. 604-4674
Mfr. Part No.SLF7028T-4R7M1R5-PF
BrandTDK
MYR1.807
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. 871-2051
Mfr. Part No.LQH5BPN100MT0L
BrandMurata
MYR1.81
Each (In a Bag of 10)
units
10 μH 1.6 (Temperature Rise) A, 2 (Inductance Change) A 5050 5mm - 5mm 2mm - 5 x 5 x 2mm Yes - 106mΩ LQH5BPN Ferrite
RS Stock No. 789-7160
Mfr. Part No.744777920
MYR9.65
Each
units
100 μH 790mA - 7.3mm - 7.3mm 4.5mm - 7.3 x 7.3 x 4.5mm Yes ±20% 380mΩ WE-PD -
RS Stock No. 172-9645
Mfr. Part No.SDR0805-2R5ML
BrandBourns
MYR1.803
Each (On a Reel of 1000)
units
2.5 μH 5A - 7.8mm - 7.8mm 5.3mm - 7.8 x 7.8 x 5.3mm - ±20% 20mΩ SDR0805 Ferrite
RS Stock No. 532-3976
Mfr. Part No.36502CR36JTDG
MYR1.36
Each (In a Pack of 10)
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. 743-5181
Mfr. Part No.SRN8040-330M
BrandBourns
MYR2.04
Each (In a Bag of 10)
units
33 μH 1.9A 8040 8mm - 8mm 4mm - 8 x 8 x 4mm Yes ±20% 145mΩ SRN8040 Ferrite
RS Stock No. 500-2994
Mfr. Part No.744231121
MYR4.34
Each (In a Pack of 5)
units
- 370mA 0805 (2012M) 2mm - 1.2mm 1.2mm - 2 x 1.2 x 1.2mm - ±25% 300mΩ WE-CNSW SMD Ferrite
RS Stock No. 172-9678
Mfr. Part No.SRR7032-471M
BrandBourns
MYR2.141
Each (On a Reel of 1500)
units
470 μH 200mA 7032 7mm - 7mm 3.2mm - 7 x 7 x 3.2mm Yes ±20% 2.4Ω SRR7032 Ferrite
RS Stock No. 789-7123
Mfr. Part No.7447779115
MYR9.08
Each
units
15 μH 1.6A - 7.3mm - 7.3mm 4.5mm - 7.3 x 7.3 x 4.5mm Yes ±20% 81mΩ WE-PD -
RS Stock No. 163-3235
Mfr. Part No.744231121
MYR3.501
Each (On a Reel of 2000)
units
- 370mA 0805 (2012M) 2mm - 1.2mm 1.2mm - 2 x 1.2 x 1.2mm - ±25% 300mΩ WE-CNSW SMD Ferrite
RS Stock No. 727-2123
Mfr. Part No.SRR7032-471M
BrandBourns
MYR2.45
Each (In a Pack of 5)
units
470 μH 200mA 7032 7mm - 7mm 3.2mm - 7 x 7 x 3.2mm Yes ±20% 2.4Ω SRR7032 Ferrite
RS Stock No. 169-9686
Mfr. Part No.DRA125-820-R
MYR5.783
Each (On a Reel of 600)
units
82 μH 2.406A 0125 12.5mm - 12.5mm 6mm - 12.5 x 12.5 x 6mm Yes ±20% 135mΩ DRA Ferrite
RS Stock No. 863-0791
Mfr. Part No.74438336010
MYR5.93
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. 167-4869
Mfr. Part No.LQP03TN2N0B02D
BrandMurata
MYR0.061
Each (On a Reel of 15000)
units
2 nH 600mA 0201 (0603M) 0.6mm - 0.3mm 0.3mm - 0.6 x 0.3 x 0.3mm Yes ±0.1nH 150mΩ LQP Non-Magnetic Core
RS Stock No. 724-1677
Mfr. Part No.DLW21SN900SQ2L
BrandMurata
MYR2.26
Each (In a Pack of 10)
units
- 330mA 0805 (2012M) 2mm - 1.2mm 1.2mm - 2 x 1.2 x 1.2mm - ±25% 350mΩ DLW21S -
RS Stock No. 725-4910
Mfr. Part No.LQG15HS18NJ02D
BrandMurata
MYR0.249
Each (In a Pack of 10)
units
18 nH 300mA 0402 (1005M) - - - - - 1 x 0.5 x 0.5mm - ±5% 360mΩ LQG15H -
RS Stock No. 124-8163
Mfr. Part No.LQG15HS12NJ02D
BrandMurata
MYR0.139
Each (In a Pack of 500)
units
12 nH 300mA 1005 1mm - 0.5mm 0.5mm - 1 x 0.5 x 0.5mm - ±5% 280mΩ LQG15HS Non-Magnetic Ceramic
RS Stock No. 725-4829
Mfr. Part No.LQG15HN10NJ02D
BrandMurata
MYR0.249
Each (In a Pack of 10)
units
10 nH 300mA 0402 (1005M) - - - - - 1 x 0.5 x 0.5mm - ±5% 350mΩ LQG15H -
RS Stock No. 898-8181
Mfr. Part No.744913050
MYR3.52
Each (In a Bag of 5)
units
5 nH 4A 3136 3.68mm - 3.05mm 3.18mm - 3.68 x 3.05 x 3.18mm - - 1.8mΩ WE-CAIR -
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