Coilcraft BCL Broadband Conical Inductors
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Broadband Conical Inductors
with “Flying Leads”

These conical inductors are designed for applications up to 40 GHz. For applications up to 6 GHz, consider one of the lower cost 4310LC wideband bias chokes.
  • Flat bandwidth with high impedance to 40 GHz. Ideal for use in bias Tees
  • Operates as a series of narrow band inductors
  • Limits effects caused by stray capacitance
  • "Flying leads" allow precise positioning and adjustment of the mounting angle.
  • For a surface mount, pick and place version see the BCR conical inductor.
  • RoHS Compliant. Tin-silver-copper (96.5/3/0.5) over copper terminations.


Part number
Click to get parts
±5% (µH)
DCR max2
BCL-221JL 0.22 0.10 1200
BCL-531JL 0.53 0.15 1060
BCL-122JL 1.20 1.05 270
BCL-162JL 1.65 0.60 490
BCL-232JL 2.35 1.61 270
BCL-272JL 2.75 0.40 675
BCL-632JL 6.35 0.92 480
BCL-652JL 6.5 0.70 650
BCL-802JL 8.0 3.39 230
1 Inductance measured at 10 MHz, 0.1 Vrms, 0 Adc using an Agilent/ HP 4286A LCR meter and a Coilcraft CCF 1111 fixture.
2 DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
3 Irms: Current that causes a 40°C rise from 25°C ambient. Details
4 Ambient temperature range: –40°C to +85°C
5 Storage temperature range: Component: –40°C to +85°C
Tray packaging: –40°C to +80°C
6 Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
7 Electrical specifications at 25°C.
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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Updated: April 16, 2018