TDK B409x SMD Hybrid Aluminum Electrolytic Capacitors
TDK B409x SMD Hybrid Aluminum Electrolytic Capacitors include capacitors designed to withstand mechanical vibrations of up to 30g (MIL-STD-202, Method 204). This vibration resistance is achieved by four posts that extend from the base plate of the component, stabilizing 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 typically used in demanding automotive and industrial applications. These TDK surface-mount capacitors are available in various voltage ratings, ranging from 25V to 80V, and capacitance values from 56µF to 1100µF.
The diameter is 10mm, and 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 equivalent series resistance (ESR) of 10mΩ to 33mΩ and high ripple current capabilities of 2.8A to 5.8A. The useful life of these capacitors is more than 4000 hours at +125°C at the rated voltage and ripple current. The B40950 industrial series has a useful life of more than 10,000 hours 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.
Features
- Miniaturized dimensions
- Useful life
- 4000 hours at +125°C
- 10,000 hours at +105°C (B40950)
- High ripple current capability
- Low ESR across the temperature range of up to +150°C
- Standard (suffix 000) and vibration-resistant designs (suffix 100) available (MIL-STD-202, Method 204)
- Vibration resistance
- 30g (vibration-resistant series)
- 5g (standard series)
- Surface mountable and suitable for reflow soldering
- RoHS-compatible
Applications
- Automotive electronics
- Power steering
- DC-DC converters
- Cooling fans
- Water and oil pumps
- Brakes
- Industrial electronics
- Graphics processing units (GPUs)
- Robots
- E-bikes
- E-scooters
- Power tools
Specifications
- 25V to 80V voltage rating range
- 56µF to 1100µF capacitance values
- 10m diameter and 10.2mm to 16.8mm height range
- 10mΩ to 33mΩ ESR range
- 2.8A to 5.8A high ripple current range
- Operating temperature ranges
- -55°C to +105°C (B40950)
- -55°C to +150°C (B40910)
Additional Resources
Associated Capacitors
EPCOS / TDK B40910 Hybrid Aluminum Electrolytic Capacitors
Offers miniaturized dimensions and a long life of 4000 hours at +135°C.
EPCOS / TDK B40950 Hybrid Aluminum Electrolytic Capacitors
Offers miniaturized dimensions, low impedance, and a long life of 10,000 hours at +105°C.
TDK Hybrid Polymer Aluminum Electrolytic Capacitors
Offers high ripple current and low ESR across the respective temperature range.