Vishay Intertechnology, today introduced two new low profile common mode chokes for high current automotive, energy, and industrial applications. Available in both surface-mount and through-hole packages, the Vishay Dale commercial ICMS2321 10 and Automotive Grade ICMS2321-1A combine a heat rating current to 30 A with a 1500 VDC dielectric withstand voltage between coils.
With their low profile, the devices released today offer a reduced size and volume, making them more resistant to shock and vibration, while their enhanced core design increases performance and saturation current at high temperatures up to +150 °C. Offering a self-shielded, rugged construction, the common mode chokes are ideal for DC/DC converters, high voltage inverters, EMI filters, and high current filters for noise suppression in motor control and other circuitry. The AEC-Q200 qualified ICMS2321-1A is well suited for use in automotive on-board chargers.
In addition to their surface-mount and through-hole mounting options, the ICMS2321-10 and ICMS2321-1A offer customizable inductance, impedance, DCR, and current ratings. Devices with surface-mount terminations are available in tape and reel packaging and are compatible with automated pick and place assembly for increased flexibility in board layouts. The common mode chokes are RoHS-compliant, halogen-free, and Vishay Green.
Device Specification Table:
| Part number | ICMS2321-10 | ICMS2321-1A | |
| Inductance | 70 µH to 480 µH | ||
| DCR typ. | 1.2 mΩ to 13.4 mΩ | ||
| DCR max. | 1.3 mΩ to 15.0 mΩ | ||
| Common mode
impedance |
@ 1 MHz | 540 Ω to 3790 Ω | |
| @ 10 MHz | 345 Ω to 1920 Ω | ||
| @ 100 MHz | 220 Ω to 410 Ω | ||
| Heat rating current typ.(1) | 7 A to 20 A | ||
| Heat rating current typ.(2) | 10 A to 30 A | ||
| Leakage max. | 1.7 µH to 11.5 µH | ||
| AEC-Q200 | No | Yes | |
(1) DC current (A) that will cause an approximate ΔT of 40 °C
(2) DC current (A) that will cause an approximate ΔT of 100 °C
