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Introduction
Specifications
Environmental
Performance curves
Schematics
Physical characteristics
Tape & Reel
Soldering/Washing

MSD7342 Series

Common Mode Chokes

Our MSD7342 Series common mode chokes provide both common mode and differential mode filtering in a single device. They are ideal for use in both power line and signal line applications, providing 200 Vrms, one minute winding-to-winding isolation.

Common mode and differential mode filtering in a single device
Ideal for use in both power line and signal line applications
Up to 230 MHz differential mode cutoff frequency
200 Vrms, one minute winding-to-winding isolation

Refer to Designing Common Mode Filters for design guidance.

Need parts for space, military or other critical applications?
See Coilcraft ST526PND Series

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Part number

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Count	Unit price
1	$2.99
250	$1.99
500	$1.19
1000	$0.93
2500	$0.80
5000	$0.74

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

Termination

L = Matte tin over nickel

Packaging

C = 7" machine-ready reel

Tolerance

M = 20%

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Specifications

Electrical specifications at 25°C.

Part number 1	Lines	Common mode peak impedance (kΩ)	Cutoff frequency (MHz) 2	Inductance min (µH) 3	Irms (A) 4	DCR max (Ω) 5	Isolation Voltage (Vrms) 6
Part number 1	Lines	Common mode peak impedance (kΩ)	Cutoff frequency (MHz) 2	Inductance min (µH) 3	Irms (A) 4	DCR max (Ω) 5	Isolation Voltage (Vrms) 6
MSD7342-252ML_	2	3.07 @ 59.0 MHz	89.0	2.0	2.17	0.033	200
MSD7342-332ML_	2	3.86 @ 50.0 MHz	70.0	2.6	2.05	0.037	200
MSD7342-472ML_	2	4.93 @ 37.0 MHz	55.0	3.8	1.74	0.051	200
MSD7342-562ML_	2	5.96 @ 34.0 MHz	67.0	4.5	1.57	0.063	200
MSD7342-682ML_	2	7.85 @ 31.0 MHz	79.0	5.4	1.49	0.070	200
MSD7342-822ML_	2	9.09 @ 32.0 MHz	55.0	6.6	1.44	0.075	200
MSD7342-103ML_	2	9.15 @ 24.0 MHz	63.0	8.0	1.24	0.100	200
MSD7342-123ML_	2	11.85 @ 22.0 MHz	47.0	9.6	1.14	0.120	200
MSD7342-153ML_	2	14.43 @ 20.0 MHz	53.0	12	1.09	0.130	200
MSD7342-183ML_	2	18.24 @ 18.0 MHz	38.0	14	0.95	0.170	200
MSD7342-223ML_	2	18.37 @ 15.0 MHz	49.0	18	0.84	0.220	200
MSD7342-273ML_	2	25.63 @ 14.0 MHz	42.0	22	0.79	0.250	200
MSD7342-333ML_	2	26.26 @ 14.0 MHz	41.0	26	0.76	0.270	200
MSD7342-393ML_	2	35.44 @ 11.0 MHz	42.0	31	0.64	0.380	200
MSD7342-473ML_	2	34.38 @ 11.0 MHz	38.0	38	0.61	0.420	200
MSD7342-563ML_	2	41.03 @ 7.9 MHz	40.0	45	0.58	0.460	200
MSD7342-683ML_	2	70.55 @ 8.5 MHz	52.0	54	0.51	0.600	200
MSD7342-823ML_	2	84.57 @ 7.4 MHz	26.0	66	0.48	0.680	200
MSD7342-104ML_	2	89.05 @ 6.6 MHz	24.0	80	0.45	0.770	200
MSD7342-124ML_	2	101.40 @ 6.4 MHz	22.0	96	0.39	1.030	200
MSD7342-154ML_	2	121.20 @ 5.2 MHz	19.0	120	0.34	1.350	200
MSD7342-184ML_	2	141.50 @ 4.6 MHz	20.0	144	0.32	1.520	200
MSD7342-224ML_	2	133.00 @ 4.8 MHz	25.0	176	0.30	1.720	200
MSD7342-274ML_	2	103.70 @ 3.6 MHz	18.0	216	0.25	2.410	200
MSD7342-334ML_	2	131.70 @ 3.8 MHz	9.1	264	0.24	2.700	200
MSD7342-394ML_	2	145.90 @ 3.1 MHz	11.0	312	0.23	3.050	200
MSD7342-474ML_	2	187.20 @ 2.7 MHz	11.0	376	0.20	4.000	200
MSD7342-564ML_	2	204.40 @ 2.6 MHz	8.1	448	0.19	4.430	200
MSD7342-684ML_	2	210.00 @ 2.4 MHz	3.3	544	0.18	5.000	200
MSD7342-824ML_	2	251.80 @ 2.1 MHz	6.6	656	0.15	6.800	200
MSD7342-105ML_	2	276.10 @ 2.1 MHz	5.1	800	0.14	7.800	200

Notes

When ordering, please specify termination and packaging codes: e.g. MSD7342-105MLC
Frequency at which the differential mode attenuation equals 3 dB
Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent.
Irms: Current that causes a 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.
DCR is for each winding, measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
Interwinding isolation (hipot) tested for one minute.

Termination:

L = Matte tin over nickel over phos bronze.
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)

Packaging:

C = 7″ machine-ready reel. EIA-481 embossed plastic tape (250 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (1000 parts per full reel).
B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to C.

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

–40°C to +85°C with (40°C rise) 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 + temp rise)

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Performance curves

Attenuation (Ref: 50 Ohms)

Impedance vs Frequency

Schematics

Physical characteristics

Tape and Reel specification

Parts per reel		Reel dimensions (mm)					Tape dimensions (mm)						Orientation
7" (178 mm)	13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
250	1000*	178/330	60/100	13	22,4	16,4	16	12	4	2	4,9	0,4

* Special order

General specification

Core Material:

Ferrite

Weight:

0.76 – 0.87g

Winding to Winding Isolation:

200 Vrms, one minute

Soldering/Washing

Moisture Sensitivity Level (MSL):

1 (unlimited floor life at <30°C / 85% relative humidity)

Resistance to soldering heat:

Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles

Refer to Soldering Coilcraft Components before soldering.

PCB Washing:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

MSD7342 Series

Common Mode Chokes