BU9 BU9H BU9S BU9HS BU10 BU15 BU16 common mode chokes for signal line and power applications

Power Magnetics Tools

Power Inductor Finder
Get a sortable list of products that meet your specifications
Coupled Inductor Finder
Find the perfect coupled inductor for SEPIC, Zeta, or other applications
Analyze+Compare Tool
Plot the specifications, L vs I, and core losses of up to 6 inductors on the same graphs
Core & Winding Losses
Compare losses of up to 6 inductors
Highest Inductance Finder
Find parts with the highest L value within your size constraints.
DCR at Temperature
See how your operating temperature will affect an inductor's nominal DCR.
DC-DC Optimizer
Calculate and find the best inductor for your switcher topology
Flyback Transformer Picker
A guide to low cost off-the-shelf designs
Current Transformer Selector
Quickly find the best current transformer or current sensor for your application
Power Supply Simulators
Web-based simulators from major IC makers

RF Inductor Tools

RF Inductor Finder
Find all the RF inductors that meet your requirements
Analyze+Compare Tool
Plot the Q, L, Z and ESR of up to 6 inductors on the same graphs
Highest Q Finder
Quickly find parts with the highest Q at your inductance & frequency
Highest Inductance Finder
Find parts with the highest L value within your size constraints.
RF Choke Finder
Find RF chokes with the desired impedance at a single frequency or bandwidth.
Inductance at Frequency
Find parts with a specific inductance at your operating frequency

CM Choke \ Ferrite Beads

LC Filter Designer

IC / Inductor Match Tool

Application Notes

Other Resources

Designer's Kits

BU Series
Power Line Common Mode Chokes

Significant noise attenuation over a wide range of frequencies

Compact size and light weight

Independent windings allow use in high-voltage signal lines

1000 Vrms, one minute isolation (hipot) between windings

Refer to Designing Common Mode Filters for design guidance.

RoHS-compliant. Tin-silver over copper terminations.

SPECIFICATIONS

Part number
Click for camples

Common mode
peak impedance
(kOhms)

Inductance1
min (mH)

DCR max2
(Ohms)

Isolation3
(Vrms)

Current
max (A)

BU16-4530R5BL

269.6 @ 130 kHz

2.3

1000

0.50

BU16-2530R7BL

208.3 @ 190 kHz

1.3

1000

0.70

BU16-1031R0BL

57.14 @ 310 kHz

0.5

1000

1.00

BU16-4021R5BL

26.26 @ 470 kHz

4.0

0.3

1000

1.50

BU16-2022R0BL

14.47 @ 720 kHz

2.0

0.2

1000

2.00

BU15-4530R4BL

398.7 @ 130 kHz

3.0

1000

0.40

BU15-1430R7BL

70.58 @ 240 kHz

1.0

1000

0.70

BU15-7521R0BL

43.05 @ 340 kHz

7.5

0.6

1000

1.00

BU15-4421R3BL

41.14 @ 510 kHz

4.4

0.3

1000

1.30

BU15-2721R6BL

32.22 @ 620 kHz

2.7

0.2

1000

1.60

BU10-1811R2BL

5.27 @ 1200 kHz

0.18

0.20

1000

1.20

BU10-1311R6BL

3.60 @ 1200 kHz

0.13

0.12

1000

1.60

BU10-1012R2BL

1.88 @ 1500 kHz

0.10

0.08

1000

2.20

BU10-6003R0BL

1.15 @ 2100 kHz

0.06

0.04

1000

3.00

BU9-103R25BL

123.5 @ 250 kHz

3.5

1000

0.25

BU9-2820R5BL

25.12 @ 660 kHz

2.8

1.0

1000

0.50

BU9-1320R7BL

17.33 @ 910 kHz

1.3

0.5

1000

0.70

BU9-6011R0BL

5.43 @ 2100 kHz

0.6

0.2

1000

1.00

BU9-2011R6BL

3.62 @ 4000 kHz

0.2

0.1

1000

1.60

BU9H-103R25BL

148.2 @ 230 kHz

3.5

1000

0.25

BU9H-2820R5BL

29.76 @ 600 kHz

2.8

1.0

1000

0.50

BU9H-1320R7BL

12.31 @ 980 kHz

1.3

0.5

1000

0.70

BU9H-6011R0BL

5.47 @ 2000 kHz

0.6

0.2

1000

1.00

BU9H-2011R6BL

4.43 @ 2700 kHz

0.2

0.1

1000

1.60

BU9S-153R15BL

105.7 @ 200 kHz

5.0

1000

0.15

BU9S-7020R3BL

59.8 @ 370 kHz

7.0

2.5

1000

0.30

BU9HS-153R15BL

146.5 @ 220 kHz

5.0

1000

0.15

BU9HS-7020R3BL

61.9 @ 380 kHz

7.0

2.5

1000

0.30

Inductance tested at 1 kHz, 1 Vrms, and it is measured on Agilent/HP 4263B LCR meter or equivalent.

DCR is per winding measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.

Interwinding isolation (hipot) tested for one minute.

Operating temperature range −40°C to +125°C

Electrical specifications at 25°C.

	Inductor Finders Power \| RF	Datasheet Index Check Price+Stock
Products Power SM inductors TH inductors Coupled inductors High temp / automotive Toroid magnetics Current transformers Class-D inductors More . . . Transformers Flyback Miniature flyback Forward mode Planar Configurable PoE Ultrasonic sensing Current transformers Gate drive Capacitor charging Isolation Power factor CCFL backlighting Wideband RF Custom transformers More . . . RF Chip inductors Air core springs Through hole inductors Bias / broadband chokes RF transformers RFID magnetics Non-magnetic coils More . . . EMI CAN bus / CAN FD Data line CM chokes Power line CM chokes Telecom filters Wirewound Ferrite Beads More . . . Broadband Bias / broadband chokes Wideband transformers PoE magnetics Dataline CM chokes xDSL transformers More . . . Automotive/High Temp Design Tools Power tools Power Inductor Finder Analyze+Compare Tool Coupled Inductor Finder DC-DC Optimizer Core & Winding Losses Coupled Inductor Losses Highest Inductance Finder Temp Derated L vs I Temp Derated DCR Transformer Picker Current Trans. Selector More . . . RF tools RF Inductor Finder Compare+Analyze Tool Highest Q Finder Highest Inductance Finder RF Choke Finder L at Frequency More . . . IC / Inductor Match CMC / Ferrite Bead CM Choke Finder Ferrite Bead Finder Analyze+Compare Other tools LC Filter Designer S-parameters / SPICE 3D / 2D models Competitor Cross Ref More . . . Support Selection tools Ask a question FAQs Soldering PCB washing Application notes Student support Datasheet index Sample / Buy Price & availability Free samples Buy on-line Sales locations Credit application Terms & conditions Quality ISO / IATF certifications Supplier Quality Manual REACH statement Conflict metals policy Social responsibility CA Transparency Act AEC-Q200 components Counterfeit components Date codes Reliability data FAQs Soldering PCB washing Jobs Contact Sales locations Corporate offices Company profile Job openings Confidential hotline

Home \| Design Tools \| Samples \| Kits \| Price + Stock \| Sales \| Support \| Jobs \| Index
Your comments and suggestions are welcome. Contact [email protected] Copyright © 2019, Coilcraft, Inc. Privacy policy Updated: April 16, 2018

BU Series Power Line Common Mode Chokes

SPECIFICATIONS

BU Series
Power Line Common Mode Chokes