BCL Series

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.

Coilcraft BCR Series conical inductors were designed specifically for broadband and high frequency applications, operating as a series of narrow-band inductors across a frequency range of 10 MHz to 40 GHz. They are ideal for use in ultra-wideband bias Tees. Their “flying leads” allow precise positioning and adjustment of the mounting angle.

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

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Specifications

Electrical specifications at 25°C.

Part number	Inductance (µH) 1 (Tolerance: ±5%)	DCR max (Ω) 2	Irms (mA) 3
Part number	Inductance (µH) 1 (Tolerance: ±5%)	DCR max (Ω) 2	Irms (mA) 3
BCL-221JL	0.22	0.10	1200
BCL-531JL	0.53	0.15	1060
BCL-122JL	1.2	1.05	270
BCL-162JL	1.7	0.60	490
BCL-232JL	2.4	1.61	270
BCL-272JL	2.8	0.40	675
BCL-632JL	6.4	0.92	480
BCL-652JL	6.5	0.70	650
BCL-802JL	8.0	3.39	230

Notes

Inductance measured at 10 MHz, 0.1 Vrms, 0 Adc using an Agilent/ HP 4286A LCR meter and a Coilcraft CCF 1111 fixture.
DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
Irms: Current that causes a 40°C rise from 25°C ambient. Details

Termination:

Tin-silver-copper (96.5/3/0.5) over copper

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

–40°C to +85°C with Irms current, +85°C to 125°C with derated current

Storage temperature range:

Component: –40°C to +125°C
Tape and reel packaging: –40°C to +80°C

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Performance curves

Insertion Loss

Return Loss

Response curves measured in a bias tee configuration with an Agilent/HP 8722ES network analyzer.

Physical characteristics

Part number	A (±0.002 / 0,05)	B max	C max	D (±0.010 / 0,25)	E (±0.010 / 0,25)	Weight (mg)
BCL-221	0.008 / 0,20	0.057 / 1,45	0.138 / 3,51	0.166 / 4,216	0.100 /2,54	10.2
BCL-531	0.008 / 0,20	0.071 / 1,80	0.179 / 4,55	0.166 / 4,216	0.100 /2,54	19.8
BCL-122	0.008 / 0,20	0.045 / 1,14	0.115 / 2,92	0.166 / 4,216	0.100 /2,54	5.1
BCL-162	0.008 / 0,20	0.067 / 1,70	0.174 / 4,45	0.166 / 4,216	0.100 /2,54	17.1
BCL-232	0.008 / 0,20	0.060 / 1,52	0.150 / 3,81	0.166 / 4,216	0.100 /2,54	8.5
BCL-272	0.008 / 0,20	0.107 / 2,72	0.310 / 7,87	0.275 / 6,985	0.100 /2,54	67.2
BCL-632	0.008 / 0,20	0.116 / 2,92	0.340 / 8,62	0.275 / 6,985	0.100 /2,54	81.0
BCL-652	0.008 / 0,20	0.140 / 3,56	0.435 / 11,05	0.390 / 9,91	0.100 /2,54	151
BCL-802	0.008 / 0,20	0.074 / 1,88	0.237 / 6,02	0.180 / 4,57	0.100 /2,54	25.3

Dimensions are in inches / mm

General specification

Packaging:

Packaged 25 per tray

Soldering/Washing

Moisture Sensitivity Level (MSL):

1 (unlimited floor life at <30°C / 85% relative humidity)

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.

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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