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Cx Family Common Mode Chokes
0402CT Low Profile Chip Inductors
XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors


This product will not be available in an RoHS-compliant version. Core and solder contain lead.

For more information and specification about the part.

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Count Unit price
1 $4.24
100 $3.02
250 $2.30
500 $1.66
1000 $1.18
2500 $0.89
5000 $0.80

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Electrical specifications at 25°C.

Series 7M2 – Shielded with plastic sleeve

Part number Inductance (µH) Test frequency
Q min
at L nom
DCR (mΩ) 1
min 2 nom max
7M2-181 0.17 0.18 0.19 25.0 30 151
  1. DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  2. L min is achieved at maximum extension of the core toward PC board. Complete tuning range is reached within the boundaries of the coil form.


  • Pins: Tin-lead over tin over copper over iron
  • Shield can tabs: Tin-silver over nickel over brass
Ambient temperature range:
-40°C to +85°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

Typical Q at L nominal

Typical Q at L nominal

Self Resonant Frequency



Physical characteristics


General specification

7M2 series: 1.00 – 1.06 g; 7M3 series: 1.30 – 1.34 g


Resistance to soldering heat:
Wave solder only. Recommended maximum board surface temperature of 168°C (334°F) for no more than three seconds. Pre-heating is recommended to minimize time over the solder nozzle.
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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