The standard input capacitors are rated for 105°C but have high Equivalent Series Resistance (ESR). Swap them for Panasonic FR or Nichicon HW series capacitors. Result: 22% less ripple current, leading to cleaner power delivery and a quieter acoustic signature.
The standard JUFE569 ENG reference design uses 10µF + 0.1µF capacitors near the power pins. For “better” stability, add a 47µF low-ESR tantalum capacitor and a 1nF ceramic cap in parallel. This reduces voltage ripple by up to 60% during ADC reads or RF transmission spikes. jufe569 eng better
A better JUFE569 ENG is also one that integrates seamlessly. Ditch the bloated manufacturer dashboard for lightweight telemetry tools. The standard input capacitors are rated for 105°C