September 5, 2025 /SemiMedia/ — TDK Corporation has introduced its B41699 and B41799 series of ultra-compact aluminum electrolytic capacitors, designed to meet the stringent requirements of automotive systems. Withstanding temperatures up to +140 °C, the new components deliver high capacitance and ripple current handling in a minimized footprint.

Rated at 25 V and 35 V with capacitance values from 1800 µF to 13,000 µF, the capacitors support ripple currents up to 34.6 A at 10 kHz and +125 °C, offering low ESR and more than 4000 hours of service life under rated conditions. An optional vibration-resistant version can endure up to 60 g, making the series suitable for xEV platforms with 12-V board nets, where compact integration and reliability are critical.

The B41699 (axial-lead) and B41799 (soldering star) variants provide mounting flexibility for horizontal, vertical, or busbar configurations. Sizes range from 16 x 25 mm to 21 x 49 mm. Built on SIKOREL technology, the capacitors offer storage life of up to 15 years at +35 °C, while meeting RoHS and AEC-Q200 standards.

By combining high performance with compact design, TDK’s new capacitors enable engineers to simplify powertrain modules such as EPS, fan control, and transmission systems without compromising efficiency.

Further details are available at: https://www.tdk-electronics.tdk.com/en/529310/products/product-catalog/aluminum-electrolytic-capacitors/axial-capacitors.