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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

4310LC Series

Wideband Bias Chokes

RoHS compliant halogen free
Coilcraft 4310LC Series wideband bias chokes provide flat bandwidth with high impedance to 6 GHz. They offer low DCR and excellent current handling and are ideal for use in high-current bias Tee applications.
  • Surface mount broadband RF choke
  • Flat bandwidth with high impedance to 6 GHz
  • Low DCR and excellent current handling; Ideal for high current bias Tee applications
Buy Now:
Count Unit price
1 $2.50
100 $2.35
350 $1.75
700 $1.15
1400 $0.82
2800 $0.70
5000 $0.64

For high volume or non-stock items, request a quote.

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Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2
(Tolerance: ±10%)
SRF typ (MHz) 3 DCR max (mΩ) 4 Irms (A) 5
20°C rise 40°C rise
4310LC-132KE_ 1.3 235 15.1 2.7 4.2
4310LC-352KE_ 3.5 188 49.0 2.3 3.1
  1. When ordering, please specify termination and packaging codes: e.g. 4310LC-132KEC
  2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using an Agilent/HP 16193 fixture in Agilent/HP 4284A impedance analyzer or equivalent.
  3. ​SRF measured using Agilent/HP 8753D network analyzer or equivalent and a Coilcraft SMD-F test fixture.
  4. DCR measured at 25°C on a Keithley 580 micro-ohmmeter or equivalent. For other operating temperatures, use this DCR at Temperature calculator.
  5. Irms: Current that causes the specified temperature rise from 25°C ambient. Because of their open construction, these parts will not saturate. This information is for reference only and does not represent absolute maximum ratings.


  • E = RoHS compliant tin-silver over copper.
  • T = RoHS tin-silver-copper (95.5/4/0.5). (Special order, added cost)
  • S = non-RoHS tin-lead (63/37). (Special order, added cost)


  • C = 7" machine-ready reel
    EIA-481 embossed plastic tape (350 parts per full reel).
  • B = Less than full reel
    In tape but not machine-ready. To have a leader and trailer added ($25 charge), use code letter C instead.
  • 13" reel, machine-ready
    EIA-481 embossed plastic tape. Factory order only, not stocked (1500 parts per full reel).
RoHS compliant , halogen free
Ambient temperature range:
−40°C to +85°C with (40°C) Irms current
Storage temperature range:
Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
Maximum part temperature:
+125°C (Ambient + temperature rise)
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

Insertion Loss

Z vs Frequency

Insertion loss measured in a bias tee configuration with an Agilent/HP 8753ES network analyzer.


Physical characteristics


Tape and Reel specification

Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
7" (178 mm) 13" (300mm) A B C D E W P Po P1 H T part_or_j.gif
350 1500* 178/330 60/100 13 30,4 24,4 24 12 4 2 3.5 0,3
* Special order

General specification

Core Material:
0.42 g
350/7″ reel,1500/13″ reel; Plastic tape: 24 mm wide, 0.3 mm thick, 12 mm pocket spacing, 3.5 mm pocket depth


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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