Document
Document 260-1
Common Mode Chokes – BU Series
These low cost, high performance choke coils are designed to virtually eliminate line conducted common mode noise. The BU9S and BU9HS families are ideal for signal line applications; the others can be used in switching power supplies and power supply circuits. All provide significant attenuation of common mode noise across a broad range of frequencies.
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For height-restricted applications, the BU9 and BU9S filters are available in a horizontal configuration, which reduces their height to under half an inch (12.5 mm). For free evaluation samples, contact Coilcraft or request them on-line at www.coilcraft.com.
Core material Ferrite Terminations RoHS compliant tin-silver over copper. Other terminations available at additional cost. Weight BU9: 3.1 – 4.1 g BU9H: 3.1 – 4.1 g BU9HS: 3.1 – 3.8 g BU9S: 3.1 – 3.8 g BU10: 6.2 – 6.6 g BU15: 14.6 – 16.1 g BU16: 15.1 – 18.0 g Ambient temperature –40°C to +125°C Storage temperature Component: –40°C to +125°C. Packaging: –40°C to +80°C Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 Packaging BU9: 100 per tray BU9H: 100 per tray BU9HS: 100 per tray BU9S: 100 per tray BU10: 100 per tray BU15: 80 per tray BU16: 80 per tray PCB washing Only pure water or alcohol recommended
Specifications subject to change without notice. Please check our website for latest information.
Document 260-1
Revised 09/09/09
© Coilcraft, Inc. 2009
Document 260-2
Common Mode Chokes - BU9, BU9H Series
Part number BU9-103R25BL BU9-2820R5BL BU9-1320R7BL BU9-6011R0BL BU9-2011R6BL BU9H-103R25BL BU9H-2820R5BL BU9H-1320R7BL BU9H-6011R0BL BU9H-2011R6BL
1. 2. 3. 4.
Impedance max (kOhms) 60 @ 220 kHz 53 @ 410 kHz 52 @ 660 kHz 36 @ 1300 kHz 5.4 @ 1500 kHz 60 @ 220 kHz 53 @ 410 kHz 52 @ 660 kHz 36 @ 1300 kHz 5.4 @ 1500 kHz
Frequency range @ 75% of impedance max 200 – 240 kHz 310 – 430 kHz 600 – 700 kHz 1200 – 1400 kHz 900 – 2100 kHz 200 – 240 kHz 310 – 430 kHz 600 – 700 kHz 1200 – 1400 kHz 900 – 2100 kHz
DCR1 (Ohms) 3.5 1.0 0.5 0.2 0.1 3.5 1.0 0.5 0.2 0.1
Current max (Aac) 0.25 0.50 0.70 1.00 1.60 0.25 0.50 0.70 1.00 1.60
Inductance2 L1, L2 min (mH) 10.0 2.8 1.3 0.6 0.2 10.0 2.8 1.3 0.6 0.2
Inductance difference L1 - L2 max (µH) 200 50 50 25 25 200 50 50 25 25
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DCR is per winding Inductance tested at 1 kHz, 1 Vrms, 0 Adc on an Agilent/HP 4284A LCR-meter or equivalent. 1000 Vrms typical isolation between windings. Electrical specifications at 25°C.
Typical Attenuation
Typical Impedance
BU9
0.43 max 11,0 Dot indicates pin 1 0.69 max 17,5
BU9H
0.61 max 15,5 0.69 max 17,5
0.157 ±0.04 4,0 ±1,0
1
0.67 max 17,0
2 1
0.157 ±0.04 4,0 ±1,0 Dot indicates 1 pin 1 0.31 ±0.02 8,0 ±0,5
1 4
0.49 max 12,5
2
1
4
0.276 ±0.02 7,0 ±0,5
2 3
0.31 ±0.02 8,0 ±0,5
1 4
0.024 Æ 0,6
0.276 ±0.02 7,0 ±0,5 0.43 max 11,0
2 1 3
0.024 Æ 0,6
4
0.276 ±0.02 7,0 ±0,5
1 4 2 3
0.276 ±0.02 7,0 ±0,5
4
0.31 ±0.02 8,0 ±0,5
Recommended Board Layout
0.040 Æ 1,0
0.31 ±0.02 8,0 ±0,5
1 4
2 3
Recommended Board Layout
0.040 Æ 1,0
2
3
1 4
2 3
Specifications subject to change without notice. Please check our website for latest information.
Document 260-2
Revised 09/09/09
© Coilcraft, Inc. 2009
Document 260-3
Common Mode Chokes - BU9S, BU9HS Series
Part number BU9S-153R15BL BU9S-7020R3BL BU9HS-153R15BL BU9HS-7020R3BL
1. 2. 3. 4.
Impedance max (kOhms) 71 @ 210 kHz 66 @ 330 kHz 71 @ 210 kHz 66 @ 330 kHz
Frequency range @ 75% of impedance max 190 – 230 kHz 300 – 360 kHz 190 – 230 kHz 300 – 360 kHz
DCR1 (Ohms) 5.0 2.5 5.0 2.5
Current max (Aac) 0.15 0.30 0.15 0.30
Inductance2 L1, L2 min (mH) 15.0 7.0 15.0 7.0
Inductance difference L1 - L2 max (µH) 300 200 300 200
DCR is per winding Inductance tested at 1 kHz, 1 Vrms, 0 Adc on an Agilent/HP 4284A LCR-meter or equivalent. 1000 Vrms typical isolation between windings. Electrical specifications at 25°C.
Typical Attenuation
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Typical Impedance
BU9S
0.43 max 11,0 Dot indicates pin 1 0.69 max 17,5
BU9HS
0.61 max 15,5 0.69 max 17,5
0.157 ±0.04 4,0 ±1,0
0.67 max 17,0
0.157 ±0.04 4,0 ±1,0
0.49 max 12,5
2
1
1
4
2
1
1
4
0.276 ±0.02 7,0 ±0,5
0.024 Æ 0,6
1
0.31 ±0.02 8,0 ±0,5
4
0.276 ±0.02 7,0 ±0,5 0.43 max 11,0
Dot indicates pin 1
0.31 ±0.02 8,0 ±0,5
0.024 Æ 0,6
1 2 1 3 4
4
2 1
3
0.276 ±0.02 7,0 ±0,5
4
0.276 ±0.02 7,0 ±0,5
2 3
0.31 ±0.02 8,0 ±0,5
0.040 Æ 1,0
2
3
0.31 ±0.02 8,0 ±0,5
Recommended Board Layout
1 2
4 3
Recommended Board Layout
0.040 Æ 1,0
1 2
4 3
Specifications subject to change without notice. Please check our website for latest information.
Document 260-3
Revised 09/09/09
© Coilcraft, Inc. 2009
Document 260-4
Common Mode Chokes - BU10 Series
Part number BU10-1811R2BL BU10-1311R6BL BU10-1012R2BL BU10-6003R0BL
1. 2. 3. 4.
Impedance max (kOhms) 3.