23 Amp Toroidal Common Mode Choke

West Coast Magnetics' 504 series common mode chokes provide excellent noise attenuation in a small package. With a continuous RMS current rating in excess of 20 amps, this common mode choke can actually handle up to 50 amps for a short duration of time. This choke also features high noise attenuation in a compact SMD design and is available in tape and reel at larger quantities. WCM504-1 throughWCM 504-6 provide 3 mm of creepage and clearance for safety agency compliance.

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Design Constants

Part Number	Minimum Inductance (µH)	Maximum Leakage (µH)	DCR Nominal (mOhms)	rated RMS Current (amps)	Interwinding Hypot (Vac)	Clearance mm
504-1	1290	29.1	51	5.0	1500	3.0
504-1	1290	29.1	51.0	5.0	1500	3.0
504-2	809	16.1	26.0	7.1	1500	3.0
504-3	439	9.3	16.0	9.0	1500	3.0
504-4	271	5.4	6.3	14.4	1500	3.0
504-5	143	3.2	3.0	20.8	1500	3.0
504-6	110	2.5	2.4	23.3	1500	3.0
504-7	2153	31.3	68.0	4.4	1500	0.0
504-8	1290	20.0	33.0	6.3	1500	0.0
504-9	809	11.3	17.0	8.7	1500	0.0
504-10	504	8.0	8.7	12.2	1500	0.0
504-11	323	4.6	4.5	17.0	1500	0.0
504-12	224	4.0	3.1	20.5	1500	0.0

schematics

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Product Code	Length	Width	Height	X₁	X₂	l₁	l₂
504-1	1.20/30.5	0.990/25.2	0.48/12.2	1.10/27.9	0.600/15.2	0.400/10.2	0.155/3.94
504-2	1.20/30.5	0.990/25.2	0.49/12.4	1.10/27.9	0.600/15.2	0.400/10.2	0.155/3.94
504-3	1.20/30.5	0.990/25.2	0.49/12.4	1.10/27.9	0.600/15.2	0.400/10.2	0.155/3.94
504-4	1.20/30.5	0.990/25.2	0.50/12.7	1.10/27.9	0.600/15.2	0.400/10.2	0.155/3.94
504-5	1.20/30.5	0.990/25.2	0.51/13.0	1.10/27.9	0.600/15.2	0.400/10.2	0.155/3.94
504-6	1.20/30.5	0.990/25.2	0.52/13.2	1.10/27.9	0.600/15.2	0.400/10.2	0.155/3.94
504-7	1.20/30.5	0.990/25.2	0.48/12.2	1.10/27.9	0.600/15.2	0.400/10.2	0.155/3.94
504-8	1.20/30.5	0.990/25.2	0.49/12.4	1.10/27.9	0.600/15.2	0.400/10.2	0.155/3.94
504-9	1.20/30.5	0.990/25.2	0.49/12.4	1.10/27.9	0.600/15.2	0.400/10.2	0.155/3.94
504-10	1.20/30.5	0.990/25.2	0.50/12.7	1.10/27.9	0.600/15.2	0.400/10.2	0.155/3.94
504-11	1.20/30.5	0.990/25.2	0.51/13.0	1.10/27.9	0.600/15.2	0.400/10.2	0.155/3.94
504-12	1.20/30.5	0.990/25.2	0.52/13.2	1.10/27.9	0.600/15.2	0.400/10.2	0.155/3.94

Dimensions: Inches/cm

graphs

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notes

Notes:

The RMS current rating on this datasheet will lead to an approximate 40° C temperature rise above ambient. These chokes will handle up to 2.5 times this current for a short duration.
All materials of construction are rated for 155 degrees C continuous service.