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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 45 2.3 1000 0.50
BU16-2530R7BL 208.3 @ 190 kHz 25 1.3 1000 0.70
BU16-1031R0BL 57.14 @ 310 kHz 10 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 45 3.0 1000 0.40
BU15-1430R7BL 70.58 @ 240 kHz 14 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 10 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 10 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 15 5.0 1000 0.15
BU9S-7020R3BL 59.8 @ 370 kHz 7.0 2.5 1000 0.30
BU9HS-153R15BL 146.5 @ 220 kHz 15 5.0 1000 0.15
BU9HS-7020R3BL 61.9 @ 380 kHz 7.0 2.5 1000 0.30
1 Inductance tested at 1 kHz, 1 Vrms, and it is measured on Agilent/HP 4263B LCR meter or equivalent.
2 DCR is per winding measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
3 Interwinding isolation (hipot) tested for one minute.
4 Operating temperature range −40°C to +125°C
5 Electrical specifications at 25°C.

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Updated: September 14, 2017