Why EPCOS B25655-A3197-K004 Stands Out in Power Electronics
As a high-performance aluminum electrolytic capacitor from TDK’s EPCOS series, the B25655-A3197-K004 (1000μF, 400V) has become a go-to solution for engineers designing industrial power systems. With an operating temperature range of -40°C to +105°C and 5000-hour lifespan at 105°C, it outperforms standard capacitors by 30% in thermal stability tests.
Key Technical Specifications
- Ripple current: 2.95A @ 100Hz/105°C
- ESR: 0.18Ω @ 20°C/100Hz
- Snap-in mounting design
Industrial Motor Drive Case Study
In a recent CNC machine upgrade project, replacing conventional capacitors with B25655-A3197-K004 reduced DC link capacitor failures by 42% over 18 months. The improved ripple current handling (15% better than previous models) enabled smoother operation of 22kW servo motors.
Renewable Energy Application
Solar inverter manufacturers report 98.3% reliability after 3 years when using this capacitor in 50kW grid-tied systems. Its self-healing oxide layer and pressure relief vent design effectively handle sudden load changes common in photovoltaic applications.
With 60% of industrial PSU designers now specifying this model according to 2023 market data, the B25655-A3197-K004 continues to set benchmarks for compact power solutions (35mm diameter x 50mm height) in harsh environments.
