Date: 29/11/2011

SMT chokes with on-resistance of 6 milli-ohms at 8.0 Amps

Vishay Intertechnology, Inc.has released the three new surface-mount, common-mode chokes offering low DC resistance, high current-handling capability, and high stability for DC power lines.

The new ICM-2824, ICM-3528, and ICM-4743 common-mode chokes from Vishay Dale are designed to provide noise suppression for power line applications in local area networks (LAN), personal computers, CD-ROM drives, telephones, and electronic games.

The devices released feature low maximum DC resistance from just 0.006 O up to 0.015 O at rated currents from 8.0 A down to 4.0 A, and common-mode impedance ranging from 300 O to 1500 O at 100 MHz. All three chokes provide a maximum rated voltage of 80 VDC, insulation resistance of 10 MO, and an operating temperature range of - 25 °C to + 85 °C.

Offered in lead- (Pb) free, surface-mount packages with treated base terminals, the devices allow for easy mounting to the PCB and feature a paired wire coil for high stability. The ICM-2824, ICM-3528, and ICM-4743 measure 7 mm by 6 mm, 9 mm by 7 mm, and 12 mm by 11 mm, respectively, with maximum heights of 4 mm, 5 mm, and 6.3 mm.
Part number Impedance @ 100 MHz Rated current max. DC resistance max.
ICM-2824 300 O 5.0 A 0.01 O
700 O 4.0 A 0.015 O
ICM-3528 700 O 5.0 A 0.01 O
1500 O 4.5 A 0.015 O
ICM-4743 700 O 8.0 A 0.006 O
1000 O 6.0 A 0.014 O


Samples and production quantities of the new common-mode chokes are available now. Lead time for production quantities is 10 weeks.