TDK extends range of capacitors for automotive applications
The Japanese manufacturer now offers two series of hybrid polymer aluminum electrolytic capacitors in axial design. The B40600* / B40700* series is suitable for rated voltages of 25 V and 35 V. This covers a capacitance range from 780 µF to 2200 µF. With the B40640* / B40740* series, capacitors in the 63 V voltage class are also available with capacitance values from 390 µF to 720 µF.
The capacitors are produced in four can sizes from 14 x 25 mm to 16 x 30 mm (D x H). They are available in axial-lead design (B406*) or as solder star design (B407*). The internal structure of all hybrid polymer aluminum electrolytic capacitors in axial design is optimized for thermal connection to a heat sink. The stable mechanical design enables a long-term and reliable connection to the heat sink, which results in good heat dissipation. For designs with heatsink, both series offer versions without heat shrink; for free-standing mounting, components with PET heat shrink are available.
Both series are designed for a wide operating temperature range from -55°C to +150°C with a lifetime of 4000 h at 125°C. However, the main advantage of the hybrid polymer technology is the extremely low ESR values over the wide temperature range. For example, with a cup size of 16 x 30 mm and an ambient temperature of 20°C, an ESR of 3.5 mΩ can be achieved.
More information: www.tdk-electronics.tdk.com/en/alu_polymer