TDK introduces extended range of axial hybrid-polymer aluminum electrolytic capacitors
TDK Corp. has extended its product range of hybrid-polymer aluminum electrolytic capacitors, and now offers two series with an axial design. The B40600*/B40700* series is designed for rated voltages of 25 V and 35 V. These cover a capacitance range from 780 µF to 2200 µF. Capacitors in the 63 V voltage class, with capacitance values from 390 µF to 720 µF, are available with the B40640*/B40740* series.
The capacitors are produced in four can sizes ranging from 14 x 25 mm (.55 x .98 in) to 16 x 30 mm (.63 x 1.18 in) (D x H). These are available in an axial-lead design (B406*) or as a solder star version (B407*), to provide a variety of mounting options. The inner structure of all axial hybrid-polymer aluminum electrolytic capacitors is optimized for the thermal connection to a heatsink. According to the company, thanks to the stable mechanical design, a reliable long-term connection to the heat sink can be achieved, thereby offering excellent heat dissipation. For designs with heat sinks, versions without shrink-on sleeves are offered in both series, while for freestanding assembly, components with a PET shrink-on sleeve are available.
Both series are designed for a wide range of operating temperatures from -55° to +150°C (-67° to +302°F) with a life of 4000 hours at 125°C (257°F). The reported advantage of hybrid-polymer technology is its extremely low ESR values across the wide temperature range. For example, with a can size of 16 x 30 mm (.63 x 1.18 in) and an ambient temperature of 20°C (68°F), an ESR of 3.5 mΩ can be achieved.
These capacitors are typically used in automotive and industrial applications. Main applications include:
- Bidirectional converters for 48 V on-board supplies
- Motor inverters of hybrid drives
- Electrically driven power steering systems
- Water pumps
- Electrical turbochargers and superchargers
- Radiator cooling fans
- Gearbox controls
- Output filters for switch-mode power supplies
For more information, visit www.tdk-electronics.tdk.com.