WE-CBF SMD EMI Suppression Ferrite Bead

Characteristics:

The special SMD chip bead ferrites can be put directly on the printed circuit board. They offer excellent anti-EMI properties and low DCresistance. Placed very close next to the interference source even with smallest size 0402, maximal impedance at 1000 Ω can be reached.
Reliable Ni-Sn electrodes
High rated current up to 6 A
Recommended soldering: Reflow
Operating temperature: –55 ºC to +125 ºC

Applications:

Perfect as data lined filter and for uncoupling of distribution voltage
The special SMD chip bead ferrites can be put directly on the printed circuit board. They offer excellent anti-EMI
properties and low DC-resistance. Placed very close next to the interference source even with smallest size
0402, maximal impedance at 1000 Ω can be reached.
High Speed:
"High Speed" SMD ferrites WE-CBF have lower impedance in the lower frequency ranges thus they have only a
low attenuation for fast signals.
Application e.g. USB 2.0, IEEE 1394, LVDS
Wide Band:
"Wide Band" SMD ferrites WE-CBF already show high impedance in low frequency range. Therefore they are
wide band through the whole spectrum.
Application e.g. control signals, RS232, RS422, DC/DC converter
High Frequency:
"High Frequency" SMD ferrites WE-CBF have due to a modified internal layout an increased effective suppression
frequency range. Consequently the impedance at 1 GHz is up to 3 times higher.
Application e.g. HDD, fast bus signals
High Current:
"High Current" SMD ferrites WE-CBF are designed for high current (over 1 A). The rated current refers to 40 K
self-heating. High current SMD ferrites are available in all three types (High Speed, Wide Band and High Frequency).
Application e.g. power supply, DC/DC converter
Advice:
Pay attention for the use of SMD-Ferrites for high rated current >1 A and ambient temperature over +85°C that the rated current has to be reduced when temperature is above +85°C (Derating).
At +100°C environment temperature the maximal rated current has to add up to only 60% of the data sheet value, without an overload of the component.

Dimensions

Size	A (mm)	B (mm)	C (mm)	D (mm)
0402	1.0	0.5	0.5	0.25
0603	1.6	0.8	0.8	0.3
0805	2.0	1.2	0.9	0.5
1206	3.2	1.6	1.1	0.5
1210	3.2	2.5	1.3	0.5
1806	4.5	1.6	1.6	0.5
1812	4.5	3.2	1.5	0.5

Electrical properties

0402

Order Code	Impedance 100MHz (Ω)	Rated Current (mA)	DC Resistance (Ω)	Maximum Impedance (Ω)	Testcondition Max. Impedance (MHz)	Type of Application
7427927110	10	500	0.05	15	1000	High Speed
74279273	22	300	0.20	30	600	High Speed
7427927130	30	300	0.15	110	1500	High Speed
7427927140	47	200	0.40	71	800	High Speed
742792716	60	300	0.25	150	1000	High Speed
7427927160	60	400	0.30	450	800	High Speed
7427927170	75	400	0.31	400	800	High Speed
742792711	100	200	0.30	200	800	High Speed
7427927112	120	350	0.35	900	500	High Speed
7427927115	150	100	0.40	300	500	High Speed
7427927121	220	200	0.80	1300	350	High Speed
7427927141	470	250	0.45	1200	300	High Speed
7427927161	600	250	0.56	1300	300	High Speed
742792701	10	500	0.05	16	1000	Wide Band
74279274	30	300	0.25	43	500	Wide Band
74279270	40	300	0.30	60	800	Wide Band
74279276	60	300	0.35	84	550	Wide Band
74279277	70	500	0.15	91	500	Wide Band
7427927280	80	200	0.25	140	800	Wide Band
74279271	120	500	0.20	200	600	Wide Band
7427927218	180	400	0.30	260	500	Wide Band
742792780	220	300	0.35	360	450	Wide Band
74279278	240	200	0.70	290	350	Wide Band
74279272	300	200	0.80	400	380	Wide Band
7427927241	470	100	0.65	600	300	Wide Band
74279279	600	200	1.00	660	180	Wide Band
7427927291	600	300	0.60	900	250	Wide Band
7427927261	600	100	0.60	780	250	Wide Band
7427927281	800	50	0.80	1000	200	Wide Band
742792796	1000	200	1.50	1200	200	Wide Band
7427927310	10	2000	0.03	15	800	High Current
7427927370	70	1200	0.09	140	600	High Current
742792731	100	1200	0.09	140	600	High Current
7427927311	120	1200	0.09	200	450	High Current

Electrical properties

0603

Order Code	Impedance 100MHz (Ω)	Rated Current (mA)	DC Resistance (Ω)	Maximum Impedance (Ω)	Testcondition Max. Impedance (MHz)	Type of Application
74279268	15	500	0.10	60	1000	High Speed
742792605	33	500	0.10	50	1000	High Speed
74279260	40	400	0.15	60	1000	High Speed
742792608	47	500	0.10	75	1000	High Speed
74279267	60	500	0.30	110	650	High Speed
742792607	68	300	0.30	280	500	High Speed
74279261	80	200	0.30	350	650	High Speed
742792606	120	200	0.35	575	350	High Speed
742792621	140	550	0.20	430	550	High Speed
74279264	300	200	0.35	320	210	High Speed
742792640	300	300	0.35	1500	250	High Speed
742792643	470	400	0.35	700	250	High Speed
742792653	600	300	0.65	4500	200	High Speed
742792664	1000	300	0.60	1100	120	High Speed
742792620	100	500	0.15	125	450	Wide Band
74279262	120	500	0.30	200	510	Wide Band
742792622	180	500	0.30	290	380	Wide Band
74279263	220	500	0.30	280	350	Wide Band
742792631	240	200	0.40	350	400	Wide Band
742792642	470	200	0.45	780	300	Wide Band
74279265	600	200	0.45	720	200	Wide Band
742792656	750	400	0.35	800	150	Wide Band
74279266	1000	200	0.60	1350	140	Wide Band
742792663	1000	100	0.85	1100	150	Wide Band
742792662	1000	600	0.30	1050	120	Wide Band
74279269	1200	50	0.70	1500	150	Wide Band
742792691	1500	50	0.70	1900	140	Wide Band
742792692	1800	50	0.80	2100	130	Wide Band
742792693	2200	50	0.80	2250	110	Wide Band
742792695	2500	50	1.00	3000	80	Wide Band
742792604	22	1000	0.05	40	1000	High Current
742792603	28	4000	0.03	45	1000	High Current
742792601	30	1000	0.03	65	1000	High Current
742792609	30	3000	0.04	40	1000	High Current
742792602	60	3000	0.04	110	600	High Current
742792625	120	2000	0.05	180	400	High Current
742792624	180	1500	0.09	250	400	High Current
742792641	300	2000	0.15	450	250	High Current
742792645	470	1000	0.20	600	230	High Current
742792651	600	1000	0.20	800	200	High Current

Electrical properties

0805

Order Code	Impedance 100MHz (Ω)	Rated Current (mA)	DC Resistance (Ω)	Maximum Impedance (Ω)	Testcondition Max. Impedance (MHz)	Type of Application
742792005	5	700	0.07	18	1000	High Speed
7427920	11	600	0.15	24	1000	High Speed
74279201	32	500	0.15	70	1000	High Speed
74279208	40	500	0.15	68	1000	High Speed
742792015	56	300	0.3	230	800	Wide Band
742792064	75	300	0.2	300	500	High Speed
74279202	120	500	0.1	200	400	High Speed
74279203	150	300	0.25	250	400	High Speed
742792034	220	300	0.3	300	240	High Speed
742792035	300	300	0.3	450	220	High Speed
742792042	600	200	0.5	3000	180	High Speed
742792043	600	200	0.65	4800	190	High Speed
742792045	750	200	0.3	1000	180	High Speed
742792062	80	500	0.2	200	400	Wide Band
742792038	240	200	0.4	280	250	Wide Band
742792032	400	300	0.3	500	200	Wide Band
742792036	470	200	0.3	560	190	Wide Band
74279204	600	200	0.35	700	150	Wide Band
742792041	600	200	0.4	700	160	Wide Band
7427920415	600	500	0.3	660	150	Wide Band
74279205	1000	200	0.45	1050	120	Wide Band
74279209	1200	200	0.55	1400	150	Wide Band
742792091	1500	200	0.55	1500	100	Wide Band
742792090	1800	200	0.4	2000	120	Wide Band
742792092	2000	200	0.6	2000	100	Wide Band
742792093	2200	200	0.6	3000	80	Wide Band
742792094	2200	200	0.5	2200	100	Wide Band
742792095	2700	200	0.6	2700	100	Wide Band
742792011	10	3000	0.025	20	1000	High Current
742792021	22	6000	0.008	40	1000	High Current
74279206	30	3000	0.025	55	1000	High Current
742792012	33	4000	0.008	58	800	High Current
742792063	60	3000	0.025	90	500	High Current
74279207	100	1000	0.15	140	400	High Current
742792023	120	3000	0.03	180	250	High Current
742792022	220	2000	0.05	330	300	High Current
742792031	300	3000	0.05	350	200	High Current
742792037	330	2000	0.08	375	250	High Current
742792040	600	2000	0.15	700	150	High Current
742792096	1000	1000	0.3	1000	100	High Current
742792097	1500	1000	0.3	1800	70	High Current

Electrical properties

1206

Order Code	Impedance 100MHz (Ω)	Rated Current (mA)	DC Resistance (Ω)	Maximum Impedance (Ω)	Testcondition Max. Impedance (MHz)	Type of Application
7427921	32	500	0.2	70	1000	High Speed
7427922	60	500	0.2	120	1000	High Speed
742792151	70	300	0.3	105	600	High Speed
74279211	90	300	0.3	170	550	High Speed
74279212	150	300	0.3	210	280	High Speed
742792122	220	300	0.3	240	200	High Speed
742792124	470	200	0.3	500	140	Wide Band
74279213	600	200	0.3	600	100	Wide Band
742792131	600	200	0.3	630	90	Wide Band
742792133	600	500	0.3	750	60	Wide Band
74279219	700	200	0.65	2000	30	Wide Band
74279214	1000	200	0.45	1250	75	Wide Band
74279216	1200	200	0.5	1400	70	Wide Band
742792110	19	3000	0.04	73	1000	High Current
742792111	26	3000	0.04	40	1000	High Current
742792112	31	3000	0.04	52	1000	High Current
742792114	50	3000	0.025	82	1000	High Current
74279215	80	3000	0.03	110	2000	High Current
742792150	80	4000	0.02	160	550	High Current
742792113	120	3000	0.03	180	500	High Current
742792121	300	3000	0.06	330	110	High Current
742792116	500	2500	0.06	610	150	High Current
74279218	600	2000	0.1	700	90	High Current
742792118	600	2500	0.07	650	80	High Current
742792141	1000	1000	0.30	1100	90	High Current

Electrical properties

1210

Order Code	Impedance 100MHz (Ω)	Rated Current (mA)	DC Resistance (Ω)	Maximum Impedance (Ω)	Testcondition Max. Impedance (MHz)	Type of Application
74279230	32	400	0.3	70	1000	High Speed
74279231	60	400	0.3	100	1000	High Speed
7427923	90	400	0.3	180	1000	High Speed
742792310	30	3000	0.05	50	900	High Current
742792311	52	3000	0.05	90	1000	High Current
742792312	65	3000	0.03	110	1000	High Current

Electrical properties

1806

Order Code	Impedance 100MHz (Ω)	Rated Current (mA)	DC Resistance (Ω)	Maximum Impedance (Ω)	Testcondition Max. Impedance (MHz)	Type of Application
7427924	60	400	0.3	130	1000	High Speed
74279241	80	400	0.3	160	1000	High Speed
74279242	150	200	0.5	280	500	Wide Band
742792410	60	6000	0.01	120	1000	High Current
74279243	75	3000	0.025	160	1000	High Current
742792411	80	3000	0.04	140	1000	High Current
74279245	110	4000	0.035	170	600	High Current
74279244	850	1500	0.1	1250	50	High Current

Electrical properties

1812

Order Code	Impedance 100MHz (Ω)	Rated Current (mA)	DC Resistance (Ω)	Maximum Impedance (Ω)	Testcondition Max. Impedance (MHz)	Type of Application
7427925	120	300	0.3	200	800	High Speed
74279250	70	300	0.3	180	1000	Wide Band
742792510	70	6000	0.03	120	1000	High Current
742792511	120	3000	0.05	190	600	High Current
742792515	785	3000	0.05	1300	60	High Current
742792514	600	3000	0.04	900	100	High Current
74279252	880	4000	0.035	940	108	High Current

PLEASE NOTE:

Appropriate programs for filter circuit simulation are:

SILENT V.3.10 Dirks Corporate Consulting (http://www.emv.biz)

LTSpice/SwitcherCAD III Linear Technology(Freeware, Download at http://www.linear.com)

Layout data for EAGLE & Altium

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