Datasheet 3D Models

CMH, CMV Series

High Current Common Mode Chokes

Our CMH/CMV Series of common mode chokes enhance power system performance with high-current capability. Designed to minimize electromagnetic interference (EMI) and optimize power transmission efficiency, these robust components are ideal for consumer electronics and demanding industrial applications such as telecom amplifier, base station, motor drives, inverters and converters, etc.

Solutions for use in a wide array of power line circuits
Ideal for use in consumer electronics and industrial applications
Suppression of high frequency common mode noise up to 30 MHz
Excellent current ratings – up to 40 A
Isolation (hipot) up to 3250 Vrms

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Specifications

Electrical specifications at 25°C.

Part number	Lines	Common mode peak impedance (Ω)	Inductance min (µH) 1	Irms (A) 2	DCR max (mΩ) 3	Isolation Voltage (Vrms) 4
Part number	Lines	Common mode peak impedance (Ω)	Inductance min (µH) 1	Irms (A) 2	DCR max (mΩ) 3	Isolation Voltage (Vrms) 4
CMH2617-11340L	2	99.84 @ 1.7 MHz	11	40	0.50	2500
CMH3923-30431L	2	503.0 @ 2.2 MHz	300	31	1.5	2500
CMH7036-75433L	3	2240.0 @ 4.4 MHz	750	33	2.0	3250
CMV3532-10516L	2	1870.0 @ 8.8 MHz	1000	16	5.0	2500
CMH4530-10523L	2	1967.0 @ 4.9 MHz	1000	23	2.7	2500
CMH3921-10534L	2	1440.0 @ 10.0 MHz	1000	34	1.5	2500
CMH7018-10535L	2	1040.0 @ 8.2 MHz	1000	35	2.0	2500
CMH3921-20522L	2	2870.0 @ 5.0 MHz	2000	22	3.2	2500
CMH3815-24516L	2	1830.0 @ 5.7 MHz	2400	16	5.5	2500

Notes

Inductance shown for each winding. Measurement details are part number specific. See part number page in datasheet for details.
Current flows through both windings connected in series that causes a 40°C rise. This information is for reference only and does not represent absolute maximum ratings.
DCR is specified per winding.
Isolation (hipot) measured for 1 minute.

Termination:

RoHS compliant tin-silver over copper.

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

–40°C to +85°C with Irms current

Storage temperature range:

Component: –40°C to +125°C.
Tray packaging: –40°C to +80°C

Maximum part temperature:

+125°C (ambient + temp rise); +105°C (CMH3923-30431L)

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

See FIT/MTBF Calculations

Performance curves

Typical Attenuation

Typical Impedance vs Frequency

Schematics


A	B	C	D

Physical characteristics

See datasheet for dimensional drawings.

Part number	L max in/mm	W max in/mm	H max in/mm	Weight (g)	Parts per tray	Schematic
CMH2617-11340L	1.02/26,0	1.02/26,0	0.67/17,0	13.76	64	A
CMH3923-30431L	1.50/38,0	1.54/39,0	0.91/23,0	53.66	36	A
CMV3532-10516L	0.87/22,0	1.38/35,0	1.26/32,0	28.25	49	B
CMH4530-10523L	1.77/45,0	1.77/45,0	1.18/30,0	77.04	20	C
CMH3921-10534L	1.50/38,0	1.54/39,0	0.83/21,0	51.7	36	A
CMH3921-20522L	1.50/38,0	1.54/39,0	0.85/21,5	52.19	36	A
CMH3815-24516L	1.52/38,5	1.52/38,5	0.61/15,5	30.59	36	A
CMH7018-10535L	2.76/70,0	2.76/70,0	0.71/18,0	107.4	9	C
CMH7036-75433L	2.76/70,0	2.76/70,0	1.42/36,0	223.17	9	D

General specification

Core Material:

Nanocrystalline

Weight:

See table above

Washing

Moisture Sensitivity Level (MSL):

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

PCB Washing:

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

CMH, CMV Series

High Current Common Mode Chokes