TDK introduces vibration-resistant hybrid polymer electrolytic capacitors for automotive and industrial applications

TDK Corporation expands its B409x series of SMD hybrid polymer aluminum electrolytic capacitors with a design that can withstand mechanical vibrations of up to 30g (MIL-STD-202, Method 204). This is achieved by four posts that come out of the base plate of the component and stabilize the can in the event of mechanical shocks and vibrations. The design is offered with part number suffix 100 (standard types: 000), and these components are generally used in demanding automotive and industrial applications.

The surface-mount components are available in different voltage ratings between 25V and 80V, and capacitance values range from 56µF to 1100µF. Their diameter is 10mm, and their height ranges from 10.2mm to 16.8mm, providing a temperature range of -55°C to +105°C (B40950) and up to +150°C (B40910). Because of the polymer, the B409x series offers a low ESR of 10mΩ to 33mΩ and high ripple current capabilities of 2.8A to 5.8A. Their useful life is more than 4000h at a temperature of +125°C at the rated voltage and ripple current. The industrial series B40950 has a useful life of more than 10.000h at a temperature of +105°C at the rated voltage and ripple current.

The web-based AlCap Tool quickly and easily calculates accurate lifetime under application-specific conditions (more info).

robenek@dps-az.cz