WCM302 series is designed to be used as a power inductor in switch mode power supply applications. These power inductors combine high current handling capability in a low profile SMD package. This inductor has lower EMI than drum core style inductors. Many part numbers can be used as a coupled inductor to accommodate multiple outputs.
| Size Code | Inductance,(µH±15%) | Schematic | DCR (mΩ) each winding | DCR (mΩ) parallel | I max (amps) each winding a. | I max (amps) parallel a. | I max (amps) L drop limited b. |
|---|---|---|---|---|---|---|---|
| WCM302-01 | 1.30 | C | 4.40 | 2.20 | 7.80 | 15.50 | 18.90 |
| WCM302-02 | 1.80 | A | 8.60 | 2.20 | 3.90 | 15.50 | 15.80 |
| WCM302-03 | 2.50 | A | 12.50 | 3.10 | 3.30 | 13.10 | 13.50 |
| WCM302-04 | 2.50 | C | 4.40 | 2.20 | 7.80 | 15.50 | 8.50 |
| WCM302-05 | 3.20 | A | 18.30 | 4.60 | 2.70 | 10.70 | 11.80 |
| WCM302-06 | 3.60 | A | 8.60 | 2.20 | 3.90 | 15.50 | 7.10 |
| WCM302-07 | 4.90 | A | 12.50 | 3.10 | 3.30 | 13.10 | 6.10 |
| WCM302-08 | 5.00 | D | 9.00 | 9.00 | 7.70 | 7.70 | 9.50 |
| WCM302-09 | 6.40 | A | 18.30 | 4.60 | 2.70 | 10.70 | 5.30 |
| WCM302-10 | 7.20 | C | 17.30 | 8.70 | 3.90 | 7.80 | 7.90 |
| WCM302-11 | 9.80 | C | 25.30 | 12.70 | 3.30 | 6.50 | 6.80 |
| WCM302-12 | 10.00 | D | 9.00 | 9.00 | 7.70 | 7.70 | 4.30 |
| WCM302-13 | 12.80 | B | 36.60 | 12.20 | 2.20 | 6.60 | 5.90 |
| WCM302-14 | 14.40 | C | 17.30 | 8.70 | 3.90 | 7.80 | 3.50 |
| WCM302-15 | 16.20 | B | 51.90 | 17.30 | 1.80 | 5.50 | 5.30 |
| WCM302-16 | 19.60 | C | 25.30 | 12.70 | 3.30 | 6.50 | 3.00 |
| WCM302-17 | 20.00 | A | 73.00 | 18.30 | 1.40 | 5.40 | 4.70 |
| WCM302-18 | 24.20 | E | 25.10 | 25.10 | 4.60 | 4.60 | 4.30 |
| WCM302-19 | 25.60 | B | 36.60 | 12.20 | 2.20 | 6.60 | 2.70 |
| WCM302-20 | 31.30 | E | 36.00 | 36.00 | 3.80 | 3.80 | 3.80 |
| WCM302-21 | 32.40 | B | 51.90 | 17.30 | 1.80 | 5.50 | 2.40 |
| WCM302-22 | 40.00 | A | 73.00 | 18.30 | 1.40 | 5.40 | 2.10 |
| WCM302-23 | 42.10 | E | 52.40 | 52.40 | 3.20 | 3.20 | 3.30 |
| WCM302-24 | 45.00 | D | 109.00 | 109.00 | 2.20 | 2.20 | 3.20 |
| WCM302-25 | 48.40 | E | 25.10 | 25.10 | 4.60 | 4.60 | 1.90 |
| WCM302-26 | 54.50 | D | 120.00 | 120.00 | 2.10 | 2.10 | 2.90 |
| WCM302-27 | 62.50 | E | 36.00 | 36.00 | 3.80 | 3.80 | 1.70 |
| WCM302-28 | 65.00 | E | 131.00 | 131.00 | 2.00 | 2.00 | 2.60 |
| WCM302-29 | 80.00 | E | 73.00 | 73.00 | 1.90 | 1.90 | 2.40 |
| WCM302-30 | 84.10 | E | 52.40 | 52.40 | 3.20 | 3.20 | 1.50 |
| WCM302-31 | 90.00 | D | 109.00 | 109.00 | 2.20 | 2.20 | 1.40 |
| WCM302-32 | 109.00 | D | 120.00 | 120.00 | 2.10 | 2.10 | 1.30 |
| WCM302-33 | 115.00 | D | 110.00 | 110.00 | 2.20 | 2.20 | 2.00 |
| WCM302-34 | 130.00 | E | 131.00 | 131.00 | 2.00 | 2.00 | 1.20 |
| WCM302-35 | 157.00 | D | 161.00 | 161.00 | 1.80 | 1.80 | 1.70 |
| WCM302-36 | 160.00 | E | 146.00 | 146.00 | 1.90 | 1.90 | 1.10 |
| WCM302-37 | 230.00 | D | 110.00 | 110.00 | 2.30 | 2.30 | 0.90 |
| WCM302-38 | 304.00 | E | 285.00 | 285.00 | 1.40 | 1.40 | 1.20 |
| WCM302-39 | 314.00 | D | 161.00 | 161.00 | 1.80 | 1.80 | 0.76 |
| WCM302-40 | 608.00 | E | 285.00 | 285.00 | 1.40 | 1.40 | 0.54 |
| WCM302-41 | 675.00 | D | 530.00 | 530.00 | 1.00 | 1.00 | 0.82 |
| WCM302-42 | 1350.00 | D | 530.00 | 530.00 | 1.00 | 1.00 | 0.37 |
| WCM302-43 | 1445.00 | D | 1230.00 | 1230.00 | 0.67 | 0.67 | 0.56 |
| WCM302-44 | 2375.00 | D | 2010.00 | 1210.00 | 0.51 | 0.51 | 0.43 |
| WCM302-45 | 2890.00 | D | 1230.00 | 1230.00 | 0.67 | 0.67 | 0.25 |
| WCM302-46 | 3225.00 | D | 2960.00 | 2960.00 | 0.42 | 0.42 | 0.37 |
| WCM302-47 | 3920.00 | D | 4030.00 | 4030.00 | 0.36 | 0.36 | 0.34 |
| WCM302-48 | 4750.00 | D | 2010.00 | 2010.00 | 0.51 | 0.51 | 0.19 |
| WCM302-49 | 6450.00 | D | 2960.00 | 2960.00 | 0.42 | 0.42 | 0.17 |
| WCM302-50 | 7840.00 | D | 4030.00 | 4030.00 | 0.36 | 0.36 | 0.15 |
Note: All materials of construction minimum Class B 130 degrees C rated. Dimensions: Inches/mm
Note: All materials of construction minimum Class B 130 degrees C rated.
Dimensions: Inches/mm
WCM302 series is designed to be used as a power inductor in switch mode power supply applications. These power inductors combine high current handling capability in a low profile SMD package. This inductor has lower EMI than drum core style inductors. Many part numbers can be used as a coupled inductor to accommodate multiple outputs.
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